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scottc
Joined: 26 Mar 2007
Posts: 159
Location: Manilva, Malaga, Spain
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 Posted: Sat Jul 07, 2007 5:06 am Post subject: |
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| !tom wrote: | | PORSCHEV wrote: | | I am runnning 21 seconds flat and hitting a top speed of 140 km down the back stretch. According to some of the other 4cyl guys...most can't get 130. |
Not to rain on your parade or anything, but how do you determine your top speed?
Most people around here say their spedometers are around 5 mph optimistic (which is around 10 km/h), which would unfortunately put you right around 130. . .
Whatever your top speed, we're all rooting for you to represent! Maybe you'd better make your car legal before you start dominating! |
Thats a fair point there !tom, but I think more importantly is the fact that its 10km/h more than the other guys. (assuming all speedo's over read by the same amount)
Personally I've found my speedo over read by about 7 - 10%
anyway. Good Luck Porschev!! |
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PORSCHEV
Joined: 02 Nov 2002
Posts: 1901
Location: Cedar Lake Nova Scotia, Canada
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| Posted: Sat Jul 07, 2007 6:55 am Post subject: |
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My conscious won't let me run those springs  I want to get a win..but want it to be with in the rules. So I will be swapping those out tomorrow and putting in the stock ones. I have a feeling that it will handle better and loose the push.
As far as the speedo being out...yes you are correct not to mention the fact I am running low profile tires as well. On the other hand I am still up 20 km on the speedo from what I was running last race and the lap times don't lie.
I will try to capture some video as well....whats better car cam or one from the stands?
_________________
1976 924
5 lug conversion, 17'C2 wheels,custom body work,327 vette engine.
1978-#53 "D" track racer. |
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!tom
Joined: 28 Aug 2006
Posts: 1941
Location: Victoria, BC Canada
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| Posted: Sat Jul 07, 2007 7:21 am Post subject: |
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I vote for in-car.
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78 924 NA
5-lug |
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924RACR
Joined: 29 Jul 2001
Posts: 9071
Location: Royal Oak, MI, USA
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| Posted: Sat Jul 07, 2007 8:17 am Post subject: |
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I have an in-car mount for a camcorder, if you're going that route... obviously can't get it there in time, but maybe for a future race...
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype |
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John Brown
Joined: 07 Nov 2002
Posts: 903
Location: Leesburg VA
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| Posted: Sat Jul 07, 2007 9:25 am Post subject: |
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| PORSCHEV wrote: | My conscious won't let me run those springs I want to get a win..but want it to be with in the rules. So I will be swapping those out tomorrow and putting in the stock ones. I have a feeling that it will handle better and loose the push.
As far as the speedo being out...yes you are correct not to mention the fact I am running low profile tires as well. On the other hand I am still up 20 km on the speedo from what I was running last race and the lap times don't lie.
I will try to capture some video as well....whats better car cam or one from the stands? |
Ah well. Normally it would not be worth the effort. However, racin is all about the little incremental stuff. Find a set of 931 springs. They were very slightly stiffer. But it's a stock part. Likewise, there are a couple of larger rear torsion bars. 25 or so.
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John
80 931 - #931 44Cup
99 Escalade - tows track cars
gone but not forgotten: original 924.org car - 82 |
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PORSCHEV
Joined: 02 Nov 2002
Posts: 1901
Location: Cedar Lake Nova Scotia, Canada
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| Posted: Sat Jul 07, 2007 10:43 am Post subject: |
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The 931 springs might be just perfect then.....and the 931 sway bar would be as well. I can make a camera mount on my petty bar easy enough for an in car cam. I'll do my best to give you guys a good show and try to do the Porsche 924 name proud.
_________________
1976 924
5 lug conversion, 17'C2 wheels,custom body work,327 vette engine.
1978-#53 "D" track racer. |
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morghen
Joined: 21 Jan 2005
Posts: 9095
Location: Romania
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| Posted: Sat Jul 07, 2007 5:21 pm Post subject: |
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| PORSCHEV wrote: | | The 931 springs might be just perfect then.....and the 931 sway bar would be as well. I can make a camera mount on my petty bar easy enough for an in car cam. I'll do my best to give you guys a good show and try to do the Porsche 924 name proud. |
first of all try to stay out of pile-ups.
_________________
Supercharger and EFI kits
https://www.the924.com |
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John Brown
Joined: 07 Nov 2002
Posts: 903
Location: Leesburg VA
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| Posted: Sun Jul 08, 2007 1:55 am Post subject: |
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| PORSCHEV wrote: | | The 931 springs might be just perfect then.....and the 931 sway bar would be as well. I can make a camera mount on my petty bar easy enough for an in car cam. I'll do my best to give you guys a good show and try to do the Porsche 924 name proud. |
Vaughan correct me, but I think there is a bunch of old information on the main site about all this stuff?
You don't necessarily want the largest sway bars etc. Although you DO want the stiffest springs and torsion bars you can get to work (together) and then the stiffest antisways then to tune the handling.
So check the website. I think even early 944 springs would work and are a tad stiffer (or not - the 944 was actually no heavier to start than a 24). Find those larger (25mm?) rear torsion bars. And then select from the 14mm, 18mm or 19mm rear anti-sways; all stock. And a couple of different front anti-sways. Also stock.
Regrettably I just threw away some stock late style 944 front upper strut mounts. But those would be useful also.
_________________
John
80 931 - #931 44Cup
99 Escalade - tows track cars
gone but not forgotten: original 924.org car - 82 |
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morghen
Joined: 21 Jan 2005
Posts: 9095
Location: Romania
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| Posted: Sun Jul 08, 2007 3:53 am Post subject: |
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i've mounted a set of 944 (S i think) front springs on the 924 and it was JEEP high..2" between the fender and the 205/60/15 wheels.
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Supercharger and EFI kits
https://www.the924.com |
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