First runs with the supercharger installed - Racing Forum

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First runs with the supercharger installed
Monday, October 03, 2011 9:38 AM
So I went to the track last sat and these are the results, my mods are up to date in my profile.
My car is having tuning issues and will cut out at higher speeds, the first run it cut out at 100ish and the third it cut out at 97-98... I dunno what the deal is but its most likely a tuning issue with trifecta...

I launched a little harder every pass but didn't wanna break an axle so I eased off the throttle pretty slow. If I can get a 1.8-1.9 60 foot then I'm sure I could run a low 13 but didn't wanna break.


First run

R/T ... .438
60' ... 2.157
330 ... 5.901
1/8 ... 8.945
MPH ... 82.71
1000 ... 11.567
1/4 ... 13.786
MPH ... 100.37

Second run

R/T ... .351
60' ... 2.053
330 ... 5.728
1/8 ... 8.788
MPH ... 79.88
1000 ... 11.396
1/4 ... 13.617
MPH ... 102.07

Third run

R/T ... .503
60' ... 1.966
330 ... 5.658
1/8 ... 8.720
MPH ... 79.76
1000 ... 11.329
1/4 ... 13.520
MPH ... 98.74



13.520 @ 98mph! 220whp 234tq

Re: First runs with the supercharger installed
Monday, October 03, 2011 1:10 PM
1.9 60' on street tires? NICE!

Good runs man!

Stock Pulley?




Re: First runs with the supercharger installed
Monday, October 03, 2011 2:33 PM
Naw this was on et drag 24.5/8-15...

2.8 pulley, my mods are current.
How did you manage a 1.7 60? Stock axles, dump the clutch?



13.520 @ 98mph! 220whp 234tq
Re: First runs with the supercharger installed
Monday, October 03, 2011 2:42 PM
good deal man. this makes me this that high 13's are possible outta my 3 inch pulley with radials.



Re: First runs with the supercharger installed
Monday, October 03, 2011 2:49 PM
Its all in the launch, my times are proof! You should be able to bust off a 13.9-13.8 with some tires and decent 60 foot.



13.520 @ 98mph! 220whp 234tq
Re: First runs with the supercharger installed
Monday, October 03, 2011 4:20 PM
Did you weight the car while you were at the track? Just curious the total weight. Also congrats, those are great times, that is one quick cavy.
Re: First runs with the supercharger installed
Monday, October 03, 2011 6:06 PM
Thanks man, no never weighed it... Its a fully loaded ls sport though. So probably 2900 or so.



13.520 @ 98mph! 220whp 234tq
Re: First runs with the supercharger installed
Monday, October 03, 2011 10:55 PM
EvoFire wrote:

good deal man. this makes me this that high 13's are possible outta my 3 inch pulley with radials.


Never underestimate the power of pure and simple "seat time". The more practice you have at launching and the more different things you try to figure out what launch works best for your car, the better. Try different tire pressures, launch RPM, speed of clutch engagement, etc. Keep a notebook and record what you did for each run and what the results were. Time at the track is almost equally as important as horsepower when it comes to getting good ET's.

To the OP, pretty sweet times given the mods! Keep it up!



Arrival Blue 04 LS Sport
Eco
Turbo
Megasquirt
'Nuff said
Re: First runs with the supercharger installed
Tuesday, October 04, 2011 12:56 AM
oh i can drive the car...i just have not run it since the pulley swap...so im just thinking about it...



Re: First runs with the supercharger installed
Wednesday, October 05, 2011 3:29 PM
I am going to get my car dynoed later this week and am wondering if it will be ok to dyno it in 3rd gear? The reason being is my car cuts out in 4th gear...



13.520 @ 98mph! 220whp 234tq
Re: First runs with the supercharger installed
Wednesday, October 05, 2011 3:59 PM
Get the damn tune fixed. As long as you dont wheel hop you wont break an axle. Look at PJ with like 500 hp on stock axles with slicks.


1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by: Kronos Performance

WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer

Re: First runs with the supercharger installed
Wednesday, October 05, 2011 7:18 PM
Leafy (Club Jeffie FEA man) wrote:

Get the damn tune fixed. As long as you dont wheel hop you wont break an axle. Look at PJ with like 500 hp on stock axles with slicks.


Since when has PJ had 500hp?


Agree get the tune fixed. Do that before dynoing, or while on the dyno.



FU Tuning



Re: First runs with the supercharger installed
Wednesday, October 05, 2011 9:05 PM
Maybe thinking of the wrong person.


1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by: Kronos Performance

WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
Re: First runs with the supercharger installed
Friday, October 07, 2011 3:32 PM
it is better to bust a $90 axle then a destroy a transmission any day
Re: First runs with the supercharger installed
Saturday, October 15, 2011 2:42 PM
Got the car dynoed today. Made 220whp and 234 tq with a/f ratio of 11.2



13.520 @ 98mph! 220whp 234tq
Re: First runs with the supercharger installed
Saturday, October 15, 2011 2:51 PM
Hmm...seems awfully low for your mods.

Think its time to get a good tune!
Re: First runs with the supercharger installed
Saturday, October 15, 2011 4:09 PM
Ya, its falling of at higher rpm... Retune/meth coming soon.

The tq is pretty good though..



13.520 @ 98mph! 220whp 234tq
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