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Alastair McPherson
Tinkerer
London
Supercharged UZZ31 loaded V8

Posts: 27
Reg: 09-2005

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Wednesday, August 02, 2006 - 09:42 am, by:  Alastair McPherson (Boosted_v8) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Lots of people have been contacting me asking to write an article on tuning the V8, the most recent was Andy, so I finally got my ass in gear and started collating all the research and posts I've made so far and put them in one place to begin creating the ultimate soarer V8 tuning guide.

I have now done this, and version 1.00 of the guide is now published on my website,
www.alastair-mcpherson.com

Please let me know what you think, feedback is most welcome, especially if you know any areas I've missed, or you would like to contribute in any way to develop the guide further. If you have already bookmarked this website, you may need to press refresh to update the cache and see the new pages. I will also try to get the guide up on TIF. I have tried to reference as many of you as possible who have been either involved in my car or directly or indirectly contributed to the knowledge. To those people I say thank you, and my aim is to give the recognition you deserve. Please inform me if that isn't the case.

This is my parting gift to the soarer community, a group of people which adopted me as a friend, a nicer bunch I couldn't have hoped to meet.

Cheers,

Al
Nathan Richardson
TryHard
Queensland
UZZ 32 #445 (V8 5Speed)

Posts: 126
Reg: 02-2006

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Wednesday, August 02, 2006 - 08:55 pm, by:  Nathan Richardson (Richtheblack) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hey Al, thats great, not a bad read at all.
Sam Schreck
Goo Roo
ACT
vvt-i JZZ31

Posts: 1051
Reg: 07-2005

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Wednesday, August 02, 2006 - 09:06 pm, by:  Sam Schreck (Schreck300) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Haven't had a read yet but...that is a sensational looking Soarer Alastair.
Alastair McPherson
Tinkerer
London
Supercharged UZZ31 loaded V8

Posts: 28
Reg: 09-2005

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Thursday, August 03, 2006 - 04:01 am, by:  Alastair McPherson (Boosted_v8) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks Sam, its up for sale, I hear you can get economy shipping to ACT too :-)

Like I said you can tell from the guide I'm no engineer but its an honest account from a soarer fanatic that will hopefully give some people a few ideas.
Tim Appleton
TryHard
QLD
UZZ31

Posts: 242
Reg: 07-2005

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Thursday, August 03, 2006 - 07:04 am, by:  Tim Appleton (Timbo) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Great article, sounds like I'm up for a set of Neil's headers next then.
Antony Borlase
TryHard
QLD
UZZ31 (V8 Limited)

Posts: 108
Reg: 07-2005

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Thursday, August 03, 2006 - 09:19 am, by:  Antony Borlase (Borlase) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Well I'm happy because mine is sort of going down this route:
- Done Transmission
- Done Maltech BFI
- Headers & exhaust next bonus (August/September)

So I'm with you Tim!
Gary Nimmo
TryHard
WA
V8

Posts: 156
Reg: 07-2005

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Friday, August 04, 2006 - 07:37 am, by:  Gary Nimmo (Gazzasore) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Like your work Alastair
I hope when you sell your 31
You will be getting a 32?
Don Bagnall
Moderator
New Zealand
I have LESS Soarers than Hayden :-(

Posts: 4404
Reg: 05-2005

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Friday, August 04, 2006 - 02:20 pm, by:  Don Bagnall (Baggs) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Alastair's emigrating to Oz shortly, so he might be in the market for a Soarer when he arrives, although he was talking about buying an SS Commodore
Alastair McPherson
Tinkerer
London
Supercharged UZZ31 loaded V8

Posts: 29
Reg: 09-2005

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Monday, August 07, 2006 - 08:47 pm, by:  Alastair McPherson (Boosted_v8) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Site has now been udpated, includes more pics and videos including rare D1 drift soarers in action, plus a buyers guide for soarers (its for the UK, but an interesting read anyway).
Tony Sarun
Newbie
CA
sc400

Posts: 5
Reg: 04-2006

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Sunday, October 08, 2006 - 09:03 pm, by:  Tony Sarun (Tonysarun) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

hi, i'm from california,usa,does anyone know where i can get headers?i have a 95 sc400...thanks
Oliver Mark Drews
Newbie
Negros Oriental
Soarer V8

Posts: 2
Reg: 11-2008

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Sunday, November 30, 2008 - 10:11 pm, by:  Oliver Mark Drews (Mr2crazybyong) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi alastair,
there is something wrong with the link you have provided. would have loved to read your compilation..
Brian Rignall
Tinkerer
NSW
V8

Posts: 36
Reg: 12-2009

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Tuesday, February 23, 2010 - 10:38 am, by:  Brian Rignall (Cashmere) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

We page now only reads:

This domain has been the victim of email spoofing.

If you have received spam email from an address which appears to be from this domain, apologies but the email originated from a spammer and not the domain owner.
Boris Siljanoski
TryHard
Western Australia
Soarer GZ20 TT

Posts: 342
Reg: 11-2007

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Tuesday, February 23, 2010 - 11:12 am, by:  Boris Siljanoski (Z2tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Would be good to get a nice guide for the V8, Since they are quite hard to get power out of, especially when ECU/Piggyback Options range from $600 or so upwards to $2000 for a Wolf.
Joe Russell
DieHard
Manawatu
4.0 V8 GT-L (UZZ31)

Posts: 533
Reg: 10-2008

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Tuesday, February 23, 2010 - 02:55 pm, by:  Joe Russell (Joe_r) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

There is quite a lot around, not a lot on actual tuning though.
Heres a couple:

http://www.v-eight.com/tech_forum/index.php?sid=0022743621f79132610adf6c174a394a
http://v8soarer.com/index.shtml
Boris Siljanoski
TryHard
Western Australia
Soarer GZ20 TT

Posts: 346
Reg: 11-2007

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Tuesday, February 23, 2010 - 06:21 pm, by:  Boris Siljanoski (Z2tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Looks like a good 25rwkw can be had with some sort of engine management, Nice.

First logical steps seem to be

BFI
Exhaust
Tune

That should net about 175rwkw, but then where to go from there?
Ali Saeed
Goo Roo
WA
V8 Limited

Posts: 1849
Reg: 09-2007

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Tuesday, February 23, 2010 - 07:33 pm, by:  Ali Saeed (Ali) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

chuck in a manual. manual + tuned na v8 = lots of fun. manual tranny should also get rid of the sluggish response. 4.11 LSD would get in there somewhere
Christian Somerville
TryHard
South Australia
UZZ31 V8 LTD

Posts: 333
Reg: 03-2009

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Wednesday, February 24, 2010 - 12:00 am, by:  Christian Somerville (Csomers) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Ali x 2.

Diff gears and manual box + tune.
Steven Anderson
TryHard
NSW
UZZ31 Manual

Posts: 426
Reg: 05-2006

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Wednesday, February 24, 2010 - 03:58 pm, by:  Steven Anderson (Cusscuss) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Personally, I wouldnt want to do diff gears with a manual. 1st gear is already too short, highway is already to high @3500rpm and im already having to shift into 5th gear at oran park (pretty short straight) with only 147rwkw, standard diff gears and an R154.
Damian Ware
Goo Roo
Victoria
UZZ32

Posts: 1395
Reg: 10-2005

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Wednesday, February 24, 2010 - 04:47 pm, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Steven Anderson wrote on Wednesday, February 24, 2010 - 03:58 pm:

highway is already to high @3500rpm




R154 fith gear ratio is 0.753:1
Auto 4th gear ratio is 0.705.

That makes it about 150rpm increase to do the same speed 100km/hr with the same diff ratio.
Steven Anderson
TryHard
NSW
UZZ31 Manual

Posts: 427
Reg: 05-2006

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Thursday, February 25, 2010 - 03:12 pm, by:  Steven Anderson (Cusscuss) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

yup, it sucked with an auto and it still sucks with a manual.

If my soarer ever gets a decent amount of power, it will be getting a 3.2 rear end at the same time.
Ali Saeed
Goo Roo
WA
V8 Limited

Posts: 1855
Reg: 09-2007

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Thursday, February 25, 2010 - 03:59 pm, by:  Ali Saeed (Ali) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

stuff a 3.2. responsiveness should be the most important thing in a road car, not top speed
Damian Ware
Goo Roo
Victoria
UZZ32

Posts: 1396
Reg: 10-2005

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Thursday, February 25, 2010 - 07:33 pm, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Not sure what you are talking about.

150rpm increase is bugger all and it is close to a perfect ratio.

If I went manual I would go for a stock V8 ratio diff in a V8.
Steven Anderson
TryHard
NSW
UZZ31 Manual

Posts: 428
Reg: 05-2006

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Friday, February 26, 2010 - 11:02 am, by:  Steven Anderson (Cusscuss) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Its a personal preference, there will be no real loss in response except for 1st gear and if your putting out 4-500hp thats not going to be an issue anyway.
Advandages are less shifting and a proper highway gear. 3rd gear maxing out at ~120 just feels wrong.
Damian Ware
Goo Roo
Victoria
UZZ32

Posts: 1397
Reg: 10-2005

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Friday, February 26, 2010 - 11:59 am, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Steven Anderson wrote on Friday, February 26, 2010 - 11:02 am:

Its a personal preference, there will be no real loss in response except for 1st gear and if your putting out 4-500hp thats not going to be an issue anyway.
Advandages are less shifting and a proper highway gear. 3rd gear maxing out at ~120 just feels wrong.




Steve you cant have a stock V8 diff ratio as with R154 in 3rd you would not max out rpm at 120km/hr. You should be able to do 150km/hr in 3rd.

Likewise you should be doing 2500rpm at 100km/hr not 3500rpm.

Auto ratios

1st:2.804
2nd:1.531
3rd:1
4th:0.705

R154 ratios

First Gear: 3.250:1
Second Gear: 1.955:1
Third Gear: 1.310:1
Fourth Gear: 1.00:1
Fifth Gear: 0.753:1
Steven Anderson
TryHard
NSW
UZZ31 Manual

Posts: 431
Reg: 05-2006

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Friday, February 26, 2010 - 01:02 pm, by:  Steven Anderson (Cusscuss) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

hrm... will have to check some things. 3500 is closer to 125 (my highway speed) by memory
Phil Gibson
Goo Roo
WA
'91 UZZ31 track bunky, '94 blk/blk UZZ31

Posts: 1595
Reg: 07-2005

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Friday, March 05, 2010 - 10:47 am, by:  Phil Gibson (Sciflyer) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

yep something wrong there Steven... around Wanners i'll get ~120km/h out of the auto 2nd - and thats with a TT 4.08 diff

3rd will take me to the 180km/.h limiter easy
Neil Griffiths
Goo Roo
NSW
I have a Cadillac and a Supercharged Manual V8

Posts: 4909
Reg: 07-2005

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Friday, March 05, 2010 - 05:32 pm, by:  Neil Griffiths (Aussiesc) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Damian Ware wrote on Friday, February 26, 2010 - 11:59 am:

R154 ratios

First Gear: 3.250:1
Second Gear: 1.955:1
Third Gear: 1.310:1
Fourth Gear: 1.00:1
Fifth Gear: 0.753:1




This is dependent on what car the R154 was in !
Steven Anderson
TryHard
NSW
UZZ31 Manual

Posts: 440
Reg: 05-2006

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Friday, March 05, 2010 - 11:51 pm, by:  Steven Anderson (Cusscuss) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

yeah so my memory sux. Got the car back today (i think niall is getting sick of me :-) ) and sure enough 79km/h is 2000rpm in 5th, spot on for 100/2500.

I still think its a bit high personally.
Matthew Sharpe
Goo Roo
North Island
JZZ31

Posts: 5309
Reg: 10-2005

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Saturday, March 06, 2010 - 10:57 am, by:  Matthew Sharpe (Madmatt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Not too bad, would give you a top speed of over 250KM/h if there was no limiter!
Neil Griffiths
Goo Roo
NSW
I have a Cadillac and a Supercharged Manual V8

Posts: 4914
Reg: 07-2005

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Sunday, March 07, 2010 - 07:04 am, by:  Neil Griffiths (Aussiesc) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Steven Anderson wrote on Friday, March 05, 2010 - 11:51 pm:

and sure enough 79km/h is 2000rpm in 5th, spot on for 100/2500.




Do you have a 3.2:1 Diff from a Supra !
Steven Anderson
TryHard
NSW
UZZ31 Manual

Posts: 442
Reg: 05-2006

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Sunday, March 07, 2010 - 09:57 am, by:  Steven Anderson (Cusscuss) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

? I though that equated to a stock v8 ratio?

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