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Ali Saeed
Goo Roo
WA
V8 Limited

Posts: 1361
Reg: 09-2007

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Monday, November 16, 2009 - 06:35 am, by:  Ali Saeed (Ali) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

just going through yahoo japan, have you had a look at these:


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Andrew McKellar
TryHard
NSW
Soarer Sports Sedan (well, nearly); '84 MA61 Supra.

Posts: 328
Reg: 06-2008

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Monday, November 16, 2009 - 06:36 am, by:  Andrew McKellar (Toymax) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Nice work Ben, the mock up looks good.
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

Posts: 1761
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Monday, November 16, 2009 - 07:31 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks Ali.

I am really after something that is going to be effective. Most of the net chatter on time attack/supersprint/high speed type forums states that nearly everything commercially available is aesthetic only. This is particularly true of Japanese cars, and for 'universal designs' . It is their version of putting a HSV kit on their V6 commodore.

Andrew, I bought a brand new jigsaw on the way home from work today. Needless to say there is no boot floor in the car any more. The new jigsaw ate that sh!t up. After playing around with the mock up a bit, I think I am going to have to narrow it down by 100mm at the back end. I have it fouling the mufflers and heat shields, as well as the tow hook.

The next question is to decide if I make the whole thing with a shallower taper(laterally), or if I keep the taper at the front the same and make the sides parallel from about half way.

I want to find some more corflute and make a complete one that has parallel sides (about 700mm wide), as I suspect it may be easier to fit with my exhaust the way it is. I will just need little cutouts for the exhaust bends at the front. I guess the effectiveness will suffer as the expansion is less, but it will make fitting blades (if needed) easier in the future.

I found a sheet of ally for $140 down at Cardiff, so it is jobs on!
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

Posts: 1762
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Monday, November 16, 2009 - 10:14 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Warning: dodgy paint diagrams in this post!

I am looking at something like the pictures below. Either a straight (parallel sided) diffuser from the diff cradle back, or one that tapers out from the diff cradle to the full width available between the mufflers and then has parallel sides to the end(as seen in the second picture).




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Andrew McKellar
TryHard
NSW
Soarer Sports Sedan (well, nearly); '84 MA61 Supra.

Posts: 329
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Monday, November 16, 2009 - 10:42 pm, by:  Andrew McKellar (Toymax) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

My aerodynamicist says "bah, humbug" to blades in diffusers, just so you know. He is more experienced in building warships than race cars though
Andrew McKellar
TryHard
NSW
Soarer Sports Sedan (well, nearly); '84 MA61 Supra.

Posts: 330
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Monday, November 16, 2009 - 10:44 pm, by:  Andrew McKellar (Toymax) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Look at that, another archived page. You're catching up there Ben.

I like the 2nd of your designs, it looks more, well, diffuser-like.
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

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Tuesday, November 17, 2009 - 04:08 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I like the second design as well, but actually making it is going to be a problem. The bends and angles add a complexity for construction. It occurred to me on the way home from work- I cant bend that, it will need cutting and welding. So I am back to your simpler design again, but I'll have to narrow the taper down a little.

I am going out to the shed after a coffee for a final meeting between my designer and fabricator. (actually- just me!) I plan to stare at the problem until a solution presents itself. I am setting a deadline of thursday night to have it made, so I can see if I can sort out the slipping clutch issue before Oran Park on the 29th.
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

Posts: 1764
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Tuesday, November 17, 2009 - 04:24 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

like this...
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Jeff Bedsor
DieHard
QLD
TT

Posts: 725
Reg: 10-2006

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Tuesday, November 17, 2009 - 04:25 pm, by:  Jeff Bedsor (Jeff_bedsor) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Ben - you can bend the outside edges with just the one vertical weld in the middle and then just stitch weld the other three centre pieces. Ally would be good or sheet metal and make the top section the bottom of the boot where you cut the wheel well out. Hope that made sense.
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

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Tuesday, November 17, 2009 - 06:50 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Jeff- I could but I never got around to getting a 15 amp power supply in this house, so I still haven't got my mig set up. Therefore I don't have the ability to weld aluminium (for you James).

The plan is to bend it out of a single sheet of ally, which I have sitting in the trailer. The original design, kindly lent to me by Andrew, was more like the third drawing. I was looking to modify it to fit between my rear mufflers when I was fiddling around with the first two drawings.

I have mocked up a new version I am pretty happy with. It is the third drawing above, but narrowed at the rear end. Hopefully this will not compromise performance too much.

I just need to check and recheck my measurements prior to cutting.
Joe Russell
TryHard
Manawatu
4.0 V8 GT-L (UZZ31)

Posts: 473
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Wednesday, November 18, 2009 - 08:20 pm, by:  Joe Russell (Joe_r) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Looking good Ben. I'd like to put forward my support of blades in a diffuser(obviously putting those on any ally sheet isn't going to happen without welding or riveting, so I'll understand if you leave them out)
The theory behind them is that they direct the air in the direction you want, forcing the turbulent air into a much more uniform shape-unless you have a full under car tray, this will be highly beneficial. Even with a full flat bottom it would still be very good.
I found this great for my research:
Undertrays, bonnet spoilers and vents:
http://www.autospeed.co.nz/cms/A_2159/article.html
http://www.autospeed.co.nz/cms/A_2160/article.html
http://www.autospeed.co.nz/cms/A_2162/article.html

Modifying undercar airflow:
http://www.autospeed.co.nz/cms/A_2455/article.html
http://www.autospeed.co.nz/cms/A_2456/article.html
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

Posts: 1766
Reg: 04-2006

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Wednesday, November 18, 2009 - 09:33 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

G'day Joe. You advice, research, and opinion is welcome here. I will read your links in due course, but at the moment I am fragged. I have just come in from the shed, showered and cracked a can of Jimmy. The diffuser is on the car. Just.

Some pics below, but in short I reverted back to Andrew's design and just cut the car up to make it fit. Suffice to say I don't think I could fit anything bigger under there.

It is made from a single sheet o 1.6mm aluminium (James), cut with a jigsaw and bent using some wooden blocks, a mallet, and a shed load of determination. My arms feel like I have done 12 rounds. It is secured via ally brackets, but will also be joined to the boxed floor when I fabricate that. It then will be extremely strong. My cutouts for the exhaust need some work as there is still some fouling which could lead a failure or just an annoying noise.


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I ordered a rear main seal and a front gear box seal from Castle Hill Toyota today as well. I don't know why the clutch is slipping, but I would hate to crack the gear box off the engine and find it was the gearbox seal and not the rear main...
Joe Russell
TryHard
Manawatu
4.0 V8 GT-L (UZZ31)

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Thursday, November 19, 2009 - 04:47 am, by:  Joe Russell (Joe_r) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Aha! That is very large! Yeah take your time with those links there's a bit to read.
How are the exhausts situated? By the second photo they look to foul the diffuser, but on the third they look fine.
Just the photo angle I'm guessing?
Aiden Cheese
TryHard
QLD
Soarer jzz30

Posts: 181
Reg: 09-2009

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Thursday, November 19, 2009 - 12:18 pm, by:  Aiden Cheese (Chillpen) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


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Yeah i think its just how they are hanging down. If I'm reading the picture right, they should sit far enough left and right to be fine, if not snug.

Remember from
this picture, the widest part of the diffuser is right where the tips are, but the muffler will be back a little more where the diffuser is slightly skinnier. All about the camera tricks ;)
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

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Thursday, November 19, 2009 - 07:19 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


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Just the angle. I had to remove the heat shields to get it to fit, but the mufflers fit fine. I just can't get enough wiggle room to get the last rubber mount back on. Looks like I'll have to unbolt something to refit it.
James Harris
Goo Roo
QLD
GT Starlet

Posts: 3245
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Thursday, November 19, 2009 - 10:11 pm, by:  James Harris (Haro) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Ben Lipman wrote on Tuesday, November 17, 2009 - 06:50 pm:

aluminium (for you James).




I love you

On topic - *last pic* At least you have a nice toolbin now for all your odds and ends.... and perhaps spare tyres !
Ali Saeed
Goo Roo
WA
V8 Limited

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Thursday, November 19, 2009 - 10:35 pm, by:  Ali Saeed (Ali) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

isnt that a bit too big?
Andrew McKellar
TryHard
NSW
Soarer Sports Sedan (well, nearly); '84 MA61 Supra.

Posts: 331
Reg: 06-2008

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Thursday, November 19, 2009 - 10:45 pm, by:  Andrew McKellar (Toymax) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Great work Ben, it looks excellent.
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

Posts: 1770
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Saturday, November 21, 2009 - 03:41 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Well, The diffuser and boot floor are finished. I'm sure there will be some little finishing touches, but essentially all the fabrication is done. 42 degrees here today- I have lost about 5Lt of sweat forming the boot floor by hand. It is essentially a boxed secion that connects to the diffuser to form the floor of the boot. See the photos...

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Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

Posts: 1778
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Sunday, November 22, 2009 - 01:33 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I yanked the gearbox and clutch this morning. The clutch is no good, and the rear main has been leaking. The inside of the bell housing is putrid with oil sludge. Check this thread for pics:
http://soarercentral.com/sc-forum/messages/31678/304038.html?1258858692

As stated in the other thread, I am considering my options. I have put up a wanted add for a second hand factory clutch disc, so if anyone can help it will be much appreciated. I'll tell everyone you're a top bloke. WTB thread is here:
http://soarercentral.com/sc-forum/messages/291/304072.html?1258857715
Andrew McKellar
TryHard
NSW
Soarer Sports Sedan (well, nearly); '84 MA61 Supra.

Posts: 333
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Sunday, November 22, 2009 - 08:25 pm, by:  Andrew McKellar (Toymax) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I've answered your other thread Ben, PM sent.
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

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Monday, November 23, 2009 - 09:19 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Ok. Today I managed to get the flywheel machined at the local brake and clutch shop. After a bit of poking around, I have got them to order in an Exedy heavy duty clutch kit. It is only a few dollars more than buying OEM, and they promise it will be here by Wednesday.

I will keep the stock clutch and look to get it rebuilt down the track if the Exedy isn't all it is cracked up to be. Like everything on the net, some people love them, and some hate them. Sometimes you just have to run with whatever ball is in your hands.

Tomorrow night I'll do the rear main and re fit the flywheel. Hopefully Wednesday night will see me installing the new clutch and the rest of the week putting the car back together and doing my usual track day prep (engine oil and filter, bleed brakes, general checkup).
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

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Tuesday, November 24, 2009 - 09:58 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Rear main is in. I ended up pulling the complete seal cover off and resealing that also due to the fact I wasn't sure where the oil was coming from. Flywheel is back on now too. Each bolt torqued to 36lbft, and then turned 90 deg. Don't really understand that, but it is done.

I also changed the Engine oil whilst I was under there. I was covered in crap anyway.

Hopefully the clutch will be here tomorrow, meaning I can fit that as well, and start putting the car back together.
James Johnson
Goo Roo
Victoria
JZZ30 2JZ + Manual

Posts: 1237
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Tuesday, November 24, 2009 - 10:11 pm, by:  James Johnson (Jamesy) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

i have a stock clutch if you get stuck could send it express.

i have the exedy HD clutch behind my 2jzgte, seems to holding it up well i have done 2 track days with it at PI.

Great thread anyway, ill have to make a front diffuser for my next track day too.

cheers
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

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Wednesday, November 25, 2009 - 11:06 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks James

The clutch is in the gear box, and the gear box is mounted to the car. I lined the engine to gearbox join with sealant as well, as further insurance against another oil incursion.

I still need to bolt the pressure plate to the flywheel, and reassemble all the other bits (tailshaft, gearshift, heat shields etc) and fill it with oil. I am happy now that all the heavy lifting is done, I can relax tomorrow night and get the rest done Friday night/Saturday. I may even go down to the local hick dinosaur car show here in Singleton on Saturday if it is all done.
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

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Wednesday, November 25, 2009 - 11:13 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Ali Saeed wrote on Thursday, November 19, 2009 - 10:35 pm:

isnt that a bit too big?



That might be the very first time I have been asked that. I don't really know. Unfortunately those that know tend to keep the info to themselves. The design was lent to me by Andrew, and he has been around the racing game for a lot longer than me, and has some good people helping him with his car (I mean, did you see the quality of that fibreglass bonnet?). I figure the stock(ish) underbody needs all the help it can get.
Ali Saeed
Goo Roo
WA
V8 Limited

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Wednesday, November 25, 2009 - 11:40 pm, by:  Ali Saeed (Ali) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

yeh i guess so. i thought it would be something resembling(in size/scale) to what modern cars have..like ending at the rear bumper.

http://img84.imageshack.us/img84/9071/ferrarienzoyn4.jpg
Paul Kalie
Tinkerer
NSW
TT

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Thursday, November 26, 2009 - 03:15 pm, by:  Paul Kalie (Ajzs) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Ali Saeed wrote on Wednesday, November 25, 2009 - 11:40 pm:


remember although the Enzo is a mega dollar factory built racer it would still have compromise built into it, although very little compared to most cars Id imagine even trailing edges on say the rear diffuser would have been designed to ensure gutter / road clearance where as a true race car doesnt have to compromise.
http://www.ultimatecarpage.com/images/large/1823-4.jpg


oh and I seen the car today ben looks good :-)
Ali Saeed
Goo Roo
WA
V8 Limited

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Thursday, November 26, 2009 - 05:14 pm, by:  Ali Saeed (Ali) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

fair call Paul. the rear diffuser on the Audi looks almost like Ben's
Andrew McKellar
TryHard
NSW
Soarer Sports Sedan (well, nearly); '84 MA61 Supra.

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Thursday, November 26, 2009 - 11:05 pm, by:  Andrew McKellar (Toymax) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Ali Saeed wrote on Thursday, November 26, 2009 - 05:14 pm:

the rear diffuser on the Audi looks almost like Ben's



That's because Audi stole our design!!!

Great fabrication work Ben. It looks great and it'll work fine.
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

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Friday, November 27, 2009 - 05:41 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Well, it looks like I have a clutch! I haven't put the wheels back on or dropped the car, but depressing the clutch cuts the line of drive to the hubs, and releasing it connects it again.

The pedal feels quite soft for a 'Heavy duty' sports clutch kit. I never disconnected the clutch fluid hard line,so no air should have got into the system. I might have to bleed the clutch tonight anyway to make sure.

Some time ago I purchased a Nokia 6120 phone off ebay ($89) to use as a lap timer. I also got a Qstarz BTQ818X 5Hz GPS($69) that will link to the phone via bluetooth. I have downloaded Racechrono and Oran park maps to the phone. Tonight I'll have to find/fabricate something to mount the GPS and mobile phone in the car.

Manny and Jeff swear by its accuracy, and I am looking forwards to the sector timing and best lap features it has as well.
Scott Wilkes
Goo Roo
Tasmania
92 TT Factory Manual

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Friday, November 27, 2009 - 07:49 pm, by:  Scott Wilkes (Scottywilkes) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

ben dont be alarmed with the soft clutch feel, my previous clutch to the HD had a heavier clutch feel, got the HD in and thought WTF its softer, but it bites harder and is so much nicer to drive. You should like it :-)
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

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Friday, November 27, 2009 - 10:41 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Car is finally back on its own wheels, and can move under its own power. What a relief. I ended up completely bleeding the clutch as the fluid looked terrible. You're right about the clutch being quite bitey, but having a soft pedal. I have only been up and down my driveway, but I noticed it. It might take some getting used to.

I have also made up a bracket to hold the mobile and GPS on the dash out of some scrap ally.

I still need to clean up the car (there is half a toolbox in the cabin) and do my normal track day checks, but I do believe I'll make it to Oran Park on Sunday.
Damian Ware
Goo Roo
Victoria
UZZ32

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Friday, November 27, 2009 - 11:44 pm, by:  Damian Ware (Frozenpod) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Ben I have tested the GPS lap timer setup and it is great, very accurate compared with official lap timing.

BTW use quality double sided tape as taping over the top of the receiver will effect its ability to lock onto enough satellites.
Scott Wilkes
Goo Roo
Tasmania
92 TT Factory Manual

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Saturday, November 28, 2009 - 09:57 am, by:  Scott Wilkes (Scottywilkes) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

btw ben, you should always break in a clutch to bed the surfaces in. If its road legal, try and get a few ks under the belt of soft driving.

Otherwise its possible to glaze the surfaces if you go straigfht into hard driving.
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

Posts: 1798
Reg: 04-2006

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Saturday, November 28, 2009 - 12:02 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Unfortunately it is not road legal, and in its current state, bloody obvious it is modified. I have gone up and down my street as far as I dare to check the clutch works, but cannot afford to get caught with it on the street.

Best I can hope for is Jayne at Circuit Club lets me out in the newbie session for some soft laps to bed it in. I've done it at Wakefield for brakes.

Ohhh sh1te! I need to bed the brakes in also. New discs and pads all round as well as a clutch. Better email Jayne now...
Scott Casey
TryHard
nsw
soarer v8

Posts: 344
Reg: 02-2008

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Saturday, November 28, 2009 - 11:25 pm, by:  Scott Casey (V8soarer_1991) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

ben, when are you coming to wakefieled park ???
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

Posts: 1801
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Sunday, November 29, 2009 - 08:22 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Not for a couple of years...moving interstate

did several 51sec laps at Oran Park Sth today with the best being a 51.2 second lap. Happy with over a 2 second gain on such a short track.

The bloody speed cut is back. The RSM must be playing up. Might have to have a good hard look at it.
Andrew McKellar
TryHard
NSW
Soarer Sports Sedan (well, nearly); '84 MA61 Supra.

Posts: 337
Reg: 06-2008

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Sunday, November 29, 2009 - 10:57 pm, by:  Andrew McKellar (Toymax) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

2 seconds is a good gain mate. How did it feel???
Joe Russell
TryHard
Manawatu
4.0 V8 GT-L (UZZ31)

Posts: 491
Reg: 10-2008

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Monday, November 30, 2009 - 04:34 am, by:  Joe Russell (Joe_r) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Wow that's a fantastic improvement!
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

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Monday, November 30, 2009 - 07:55 am, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

The car felt nice and predictable to drive. I was really leaning on it through turn 1 and you could feel the car begin to over rotate, but a little unwinding of the steering and it fired out onto the next straight.

The brakes were really noticeable (for me) as I am now flat over the dogleg in third and carry full throttle down into the gully before a hard brake into the final turn. Previously I was on the brakes as soon as the car settled over the dogleg.

Reportedly, I was braking much later than most (including half a dozen evos) into turn 1, and I was hitting speed cut about 60m before my brake marker, which I have never done before. That points to me coming out of the final turn much better. I was leaving the car in 3rd through the final turn and gently feeding power so I was on full boost at turn exit, as opposed to changing from 2nd to 3rd on the way out of the corner which caused some very close brushes with the wall.

The fastest lap time was set with the HSD coils set to F9/R12(15 being the softest) which was due to me forgetting to re adjust the suspension. I went to F5/R5 which is closer to where I found it best last year, but laps remained in the mid 51sec range regardless. Perhaps if I checked them earlier in the day I could have made some adjustments before it got to hot and seen if there was an improvement.
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

Posts: 1805
Reg: 04-2006

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Monday, November 30, 2009 - 08:26 am, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

What I want to do now is get rid of the centre wing mounts and make new endplates that mount the wing to the body proper. There is quite some visible distortion in the boot lid now. Obviously the wing is causing this, and some, if not a lot of the force generated by the wing is probably being lost.

I have an idea, but I think I need to purchase one of Andrew's fibreglass boot lids to do it. If the boot clips on and off I could then lift it out from under the wing when I need to get access to the boot area (strut tops). It could be done with the stock boot lid, but the weight will make it cumbersome, plus it now has holes in it. I have spent enough cash this year, but it is a project for next year, I reckon.
Paul Kalie
Tinkerer
NSW
TT

Posts: 24
Reg: 02-2008

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Monday, November 30, 2009 - 11:50 am, by:  Paul Kalie (Ajzs) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Ben here's a pic of how Brad mounted his wing through the hatch

http://i440.photobucket.com/albums/qq124/adjustrx7/Track%20car%20build/IMG_3101.jpg

http://i440.photobucket.com/albums/qq124/adjustrx7/Track%20car%20build/IMG_3067.jpg
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car

Posts: 1807
Reg: 04-2006

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Monday, November 30, 2009 - 01:17 pm, by:  Ben Lipman (Ben12a) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hmm. I don't think that will work on the Soarer due to the way the boot lid folds down over the rear of the car.
Damian Ware
Goo Roo
Victoria
UZZ32

Posts: 1211
Reg: 10-2005

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Monday, November 30, 2009 - 01:23 pm, by:  Damian Ware (Frozenpod) Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Brace that goes from the boot floor/chassi directly up to the boot lid under the area where the wing wing mounts could be fairly quick and easy to do. Add a thin layer of firm rubber and have it just right so when you close the boot it is sitting hard on it.

Might not be the optimal solution but it will transfer the force directly to the chassi and be fairly easy to do.

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