Soarer Central: Archive through September 23, 2008

Soarer Central Mechanical - V8 - Supercharged The long and winding road to FI Archive through September 23, 2008

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Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 588
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Thursday, May 29, 2008 - 10:12 am, by: Tai Johnsen (Privatejohnsen)

Khris Cox wrote on Tuesday, May 27, 2008 - 10:48 pm:
10 psi with 6.5 inch crank would be more like 8 - 8.5 psi with our 5.5 inch crank.

Thats what he's saying isn't it?

Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 9420
Reg: 11-2004

Rating: N/A
Votes: 0 (Vote!)

Thursday, May 29, 2008 - 11:28 am, by: Peter Nitschke (Pen)

Now that I re-read it - yes!

Gianni Matrogiannis
TryHard
nsw
SC400 V8

Posts: 188
Reg: 08-2005

Rating: N/A
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Thursday, May 29, 2008 - 12:45 pm, by: Gianni Matrogiannis (Gianni)

HOOYEH tai forget the pulley you are using dont bother tuning it get yourself a custom 2.5 inch made up and tune it then. No use tuning on low boost then tuning it again later when you boost it. do it once and do it right.

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 589
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Thursday, May 29, 2008 - 05:40 pm, by: Tai Johnsen (Privatejohnsen)

I measured the pulley.

Outside diameter = 68mm, so just a little over 2.5 inches... 2.677ish

Sounds like a keeper

Whats the best way to set up the BOV to vent at like 11 or 12 PSI?

It states on the box that it is set for around 8 PSI factory, and I know how the adjustment is made, but what is the best way to set it?

Gianni Matrogiannis
TryHard
nsw
SC400 V8

Posts: 189
Reg: 08-2005

Rating: N/A
Votes: 0 (Vote!)

Thursday, May 29, 2008 - 08:42 pm, by: Gianni Matrogiannis (Gianni)

do not touch the blow off valve. Your vortech unit is factory set to open at any vacuum below 4 inches. LEAVE IT THERE DO NOT TOUCH. it should not open under boost, only under vacuum so it can vent excess air. when the car is at idle and cruising it will be open. this can get annoying, i plumbed mine back to quieten it down

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 591
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Sunday, June 01, 2008 - 12:04 am, by: Tai Johnsen (Privatejohnsen)

Extract taken from the maxflow race bypass and blowoff valve installation instruction.

"The bypass valve opening point can be adjusted from 3" Hg to 6" Hg. The blowoff valve opening point is set as 16" Hg and should not be increased."

16" Hg is just a smidge under 8 PSI, so what's the point of the 10 PSI pulley?

Gianni Matrogiannis
TryHard
nsw
SC400 V8

Posts: 190
Reg: 08-2005

Rating: N/A
Votes: 0 (Vote!)

Sunday, June 01, 2008 - 12:31 pm, by: Gianni Matrogiannis (Gianni)

16" of vacuum so below 0 boost

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 592
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Sunday, June 01, 2008 - 04:07 pm, by: Tai Johnsen (Privatejohnsen)

That doesn't make sense...

Why would a blow off valve open under vacuum when there is no excess pressure to vent?

From what I have gathered, the thing is going to start to open at about 8 PSI and it's max is 10 PSI.

Any more than that and you are looking at a Mondo instead of the Race bypass valve.

Gianni Matrogiannis
TryHard
nsw
SC400 V8

Posts: 191
Reg: 08-2005

Rating: N/A
Votes: 0 (Vote!)

Monday, June 02, 2008 - 08:34 pm, by: Gianni Matrogiannis (Gianni)

there is vacuum in the manifold, but if the bov does not open excess pressure would build up in the cooler piping.

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 593
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Monday, June 02, 2008 - 09:46 pm, by: Tai Johnsen (Privatejohnsen)

Gianni Matrogiannis wrote on Monday, June 02, 2008 - 08:34 pm:
there is vacuum in the manifold

Correct me if I am wrong, but when there is low load it's operating as a bypass valve.

It's open at vacuum, no problems...

Once load is introduced, the valve closes so boost can build...

If there is too much pressure it becomes a BOV and vents.. From my reading and understanding, at 8 PSI..

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 594
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Tuesday, June 03, 2008 - 01:59 pm, by: Tai Johnsen (Privatejohnsen)

I called CAPA to ask about the bypass valve operation.

Gianni is correct. It WILL NOT OPEN under positive pressure trying to push the valve up.

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 596
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Tuesday, June 03, 2008 - 08:26 pm, by: Tai Johnsen (Privatejohnsen)

Some more vids....

Just some throttle blips, and my new number plates

http://www.youtube.com/watch?v=wrrC8dUXnNE

Some blips from the back end... sound quality isn't great, but trust me, it sounds good..

http://www.youtube.com/watch?v=UITU9DxiUFk

And last but not least, a trip around the block. only part throttle really, but the TRC light still has a hissy fit... http://www.youtube.com/watch?v=1QYFstT-4oI

Enjoy

TJ

Mick Mielczarek
TryHard
qld
v8

Posts: 132
Reg: 07-2006

Rating: N/A
Votes: 0 (Vote!)

Thursday, June 05, 2008 - 02:17 pm, by: Mick Mielczarek (Eta04)

Good work Tai,
sorry that i have not gotten back to have have had a family crisis on my hands,
how much power did you end up putting down,
car sounds really good hey

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 600
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Thursday, June 05, 2008 - 09:54 pm, by: Tai Johnsen (Privatejohnsen)

No power figures yet Mick.

Still tidying things up and putting shift kit in etc.

I am a fussy bastard

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 633
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Wednesday, July 02, 2008 - 07:48 pm, by: Tai Johnsen (Privatejohnsen)

Shift kit and trans cooler in, small leak on oil return fixed (didn't do up speed flow connector properly)

For anyone who hasn't got a shift kit.. GET ONE !!

First impressions are awesome! Dex III no problem, smooth as silk on down shifts, smoother than stock i rekon.

Smooth on part throttle and awesome at anything more

Very satisfied.

Paul Mainey
Tinkerer
nsw
V8

Posts: 73
Reg: 06-2006

Rating: N/A
Votes: 0 (Vote!)

Thursday, July 03, 2008 - 12:21 pm, by: Paul Mainey (Gttv8)

Good to hear Tai.

Did you use the 1.5 Stage kit?

Any date planned for a dyno run? I am very curious to see how much power you make.

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 634
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Thursday, July 03, 2008 - 12:32 pm, by: Tai Johnsen (Privatejohnsen)

Yeah the 1.5 kit Paul.

No fixed date for the dyno yet, but hopefully in the next few weeks..

Khris Cox
Tinkerer
NC
SC400 supercharged

Posts: 42
Reg: 03-2008

Rating: N/A
Votes: 0 (Vote!)

Thursday, September 11, 2008 - 12:47 pm, by: Khris Cox (Kc95sc400)

Tai, what's happened to you?

Khris

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 695
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Thursday, September 11, 2008 - 05:01 pm, by: Tai Johnsen (Privatejohnsen)

I'm still alive

I'm studying at the moment so I have no income, hence the lack of progression..

Air temp sensor is installed and calibrated.

Last week I re-gassed the A/C and it seems to be working as before with the new line in place. Just in time for summer!

Dyno is booked in as of today for the 22nd of September at Competition Tuning & Performance in Capalaba.

I'm also trying to sort out stupid oil weeps which seem to be from •••••• sealant..

So still coming along

Regarding your transmission Kris, two words of advice.....

DO IT!!!!

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 705
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Monday, September 22, 2008 - 01:19 pm, by: Tai Johnsen (Privatejohnsen)

Just got off the Dyno and the old girl made a safe 313.5rwhp

I'm pretty happy with that..

Air temp never got over 40 degrees which was great considering it's a pretty hot and muggy day here.

Engine temperature was another story.. We were consistently seeing 105 degrees which I didn't like one bit.. Even on moderate loads it would creep up.. I rekon the hydro fan isn't being controlled properly of something because it was never going flat out.. Is there an easy way to rig it to go flat out?

I'll post up some pics and then later get some video footage up

AFR

Boost

Before and after

Ignore the "2nd Gear" all the runs were done in 3rd

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 706
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Monday, September 22, 2008 - 01:27 pm, by: Tai Johnsen (Privatejohnsen)

Also, I was suprised to see 1 pound of boost at 2500rpm...

Might have to put a slightly smaller pulley on and get that boost up earlier in the rpm range

For those too lazy to convert, 313.5hp = 234Kw

Matt Petersen
TryHard
NA
V8

Posts: 246
Reg: 01-2008

Rating: N/A
Votes: 0 (Vote!)

Monday, September 22, 2008 - 03:03 pm, by: Matt Petersen (Mattmannz)

Nice one Tai, you would be happy with that.

What rpm range did you do the runs from/to?

Matt.

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 709
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Monday, September 22, 2008 - 03:50 pm, by: Tai Johnsen (Privatejohnsen)

Pretty much 3000rpm to the limiter @ 7000rpm..

Had to get it over 100km/h in 3rd to stop kick back..

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 710
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Monday, September 22, 2008 - 04:37 pm, by: Tai Johnsen (Privatejohnsen)

Matt Petersen
TryHard
NA
V8

Posts: 247
Reg: 01-2008

Rating: N/A
Votes: 0 (Vote!)

Monday, September 22, 2008 - 05:00 pm, by: Matt Petersen (Mattmannz)

I recently did a few power runs on a Dynapack hub based dyno and did the runs from 3300rpm to 5600rpm where the stock 180kph limiter kicked in.

I won't publish my power figures in this company :-)

Great looking car Tai. Nice wheels and tires. Clean looking install in the engine bay, nearly stock looking.

Matt.

Brett Moloney
DieHard
Queensland
Supercharged UZZ31

Posts: 743
Reg: 07-2005

Rating: N/A
Votes: 0 (Vote!)

Monday, September 22, 2008 - 05:19 pm, by: Brett Moloney (Lxsv8)

Well done Tai!

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 711
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Monday, September 22, 2008 - 06:59 pm, by: Tai Johnsen (Privatejohnsen)

Thanks guys

Matt, don't be afraid, how'd you go on the hub dyno?

Brett, as soon as i sort this frigging oil leak and temp issue, i'll be going down the 1/4 for sure..

Here's the vid:

http://www.youtube.com/watch?v=xVXLpa93UaY

Matt Petersen
TryHard
NA
V8

Posts: 248
Reg: 01-2008

Rating: N/A
Votes: 0 (Vote!)

Monday, September 22, 2008 - 07:19 pm, by: Matt Petersen (Mattmannz)

I laid down a best run of 139kw which is a bit less than I thought it would do.

At the end of the day I could only run it to 5600rpm so there was possibly a little more in it and this is uncorrected.

What I really did the run for was to get the baseline before I add the M90.

Tai Johnsen
DieHard
QLD
UZZ31 - V8

Posts: 712
Reg: 04-2006

Rating: N/A
Votes: 0 (Vote!)

Tuesday, September 23, 2008 - 07:31 am, by: Tai Johnsen (Privatejohnsen)

I'm not sure if there is much difference between a hub dyno and a rolling chassis number, but 140kw is a good number for stock..

Most are around the 120 mark, i think mine was 135 or so.. I don't think they make any more power above 5600.. Even with boost climbing, you can see the hp dropping off, the motor just can't breath up there..

Good luck with the SC setup mate.. Post up as much as you can.

Matt Petersen
TryHard
NA
V8

Posts: 249
Reg: 01-2008

Rating: N/A
Votes: 0 (Vote!)

Tuesday, September 23, 2008 - 03:04 pm, by: Matt Petersen (Mattmannz)

The hub dyno's are supposedly more consistent as there is no tire stretch due to heat etc. Who knows, at the end of the day I will be measuring the before and after on the same dyno so that's all that matters.

Only have a small section of intake trunking to make with the ICV tube in it then I am ready to bolt the setup on!

Matt.

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