I have stage 2, Injen intake, Ingalls TD, SCC lowering springs, and a 3" Hahn racecraft exhaust. I have ran at the track a couple of times and consistently cant run 13s even with a low 2.2 60". I have a couple buddies of mine telling me that it could be a POS clutch, (which it pretty much is) and then I have alot of people telling me that the 3" exhaust is just too big and losing too much back pressure through second gear and not creating enough horsepower and torque to get the car in the 13s. Any ideas? Thanks!

 

the 3 inch thing will open up a big debate....but its true...you probably are losing quite a bit of low end with it.

what altitude are you at?

with your 100mph trap your car is capable of at least 14.0 and sneaking into the 13s with good conditions and good launch.

 

i have the exact setup as you but i have a 2.5 in magnaflow
1st time ever at the strip i ran 14.1 at 99 with a 2.2 60'
i was shifting at 6000, like a grandma, with the windows down

so i dont really know, ill be able to break 13's easy when i push it

im not sure how much of a drop that exhaust is, but i do know it loses SOME power down low, however its probably very marginal.

keep working on that 60' and those shifts and youll be able to get it..

if all else fails, get some stick tires
(watch the axles!)

 

Well I finally put on some toyo proxy T1Rs so hopefully they will grip real hard in relation.... maybe it is the exhaust I dunno And I dunno about the altitude I am in Orlando which is not in any near the mountains so its probably right around sea level or so.

bump for the night

 

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somebody has to know something.... bump

 

I would say it would have to be your shifting. I don't think the exhaust would make that big of a diffrence in your mph. Try quicker shifts and take it to the 7k redline. No matter my 60' times I am at least running in the 104-106 mph range. The only time it dips near 100 mph is when i don't let the blower cool before I run. Try doing some cooling mods or taking some bags of ice to cool the blower down in between runs, that always works for me.

 

the humidity down there is rediculous and could hurt you pretty bad. post a few slips if you can. at the current time i'm pretty close to you with an intake only. so it has to be something

 

^ x2, Hot weather really kills MPH. I always push mine in staging lanes w/ hood open to keep heat down. Your MPH is low for a stage 2 car w/ exhaust mods....what RPMs are you shifting?

 

i had a stage 2, 2.9" pulley, 2.5" DP, GMPP catback, Ingalls ETD, and an air filter..

i was consistantly trapping at 106mph... 13.8s all day long with a 2.2 60'


with the stage 2 you should be easily over 100mph traps. dont know what to tell you

 

You should be able to pull 13's with a bit lower 60ft. I find it humorus though that I'm still on stock motor and trap higher than you at a higher altitude. YOU NEED COOLING MODS!

 

Cooling mods go a far way for sure, especially where you're at.

 

one must learn how to drive, before one can get upset about track times.
hate to say it, your car is capable of it. the driver may not be. i have seen this many times at the track

 

Driver mod FTW.

 

gonna have to agree with area47, and post some of your slips so we can look at them

 

before i put on the 2.8" pulley i was always trapping 103mph or higher, with the highest trap speed being 105.4mph but always a 14.1 or slower, so with feathering the gas in first gear to get better traction and having the smaller pulley add more power i ran the time in my sig, and finally broke into the 13s, and the second run my shifter pin broke and it had to get towed away... and they misdiagnosed it and i got a new tranny!

 

before I post some slips. I have to mention that I do always shift at 7K. And for everyone to know the car is in florida and the humidity is always at like 90 something percent. But realized that I a buddy of mine (campo165) ran 14.4 at 100mph with an intake the same day I ran 14.3 @ 101 or whatever. We swapped keys to just to see what happened and he couldnt even get the car to hook at all he ran I think it was like 22.6 and I had my best 60ft in that thing. I have also heard amazing things about bringing that ice to the track he trying to deheat the heaton. But alright let me put some slips up and some others take a look.

I dont have a functional scanner so ill just type them up. Here is best couple I could find:

60: 2.467 2.301 2.413 2.367
330: 6.513 6.248 6.453 6.352
1/8: 9.675 9.365 9.581 9.480
mph: 77.86 78.75 78.49 78.16
1000: 12.400 12.053 12.270 12.184
1/4: 14.687 14.308 14.524 14.443
mph: 98.94 100.38 100.35 100.34
date: 4/13 6/3 6/3 12/24

I included the date because its florida and in april (4/3) it was probably like 80 somethin degrees already. Thanks for looking guys hopefully someone can tell me that they think its the exhaust so I can say its not 100% that the driver just plain sucks.

 

man first off you are spinning terribly all the way through the 330 it appears. dont know why your trap speed is so bad after that though. i would say you need to find someone with HPtuners and pull some boost to hook it up

 

Similar modds, they are in my sig

High humidity here, with similar altitude, on a warm day, I ran consisten 13.8-9. @ 102-3-4. while doing runs after run with no cooling down period.

After letting the car sit for a few hours with a bagg of ice on the blower, ran a 13.7@106. Plus my 60 wasnt real good neither, it kept spinning.

My recommendation, 3" way to big. I would recommend GMPP catback if you dont plan to go further in modd. If you want to go further in modds, then magnaflow 2.5. Also sell the hahn DP and buy a 2.5" ZZP. But keep the header, unless you want to sell the header to me that is!

Cooling moods is always good, aswell as HPT wouldnt hurt. But I dont have HPT and run good times at the track.

 

how long are you waiting between runs?

 

all cars are different
they are like twins
both look the same in the outside but in the inside they are different

 

^^^very true...

 

^^^^ very true. But it does seem irregular low though IMHO

 

I would probably agree with spinning, the track here in orlando completely sucks for traction. They don't prepare the track worth a crap and of course never going through the water! I don't have a DP. Its a stock DP and cat. It has just a 3" catback and I don't want to crack into that computer atleast until 36K will is coming waaaay to soon. The boost is pulling right up to 15 pounds coming into redline every gear. My recommendation was trying to run a buddy of mine and see how if pulls on me from 30 or 40 and see if its really exhaust that eliminating all forms of torque. So anyone what a 3" hahn exhaust or what I might be able to sell it for after I try to figure what 2.5 to buy.

and waiting between runs always with the car off and me sweating hardcore in the summer. And between runs are hard to tell sometimes not too long other it could be one than another 5 minutes later but probably a half hour, 45 minutes between runs. Just wish I had more answers

 

Try a DP. The stock DP creases to 2". So your catback is semi worthless without the DP. Try buying a 2.5 DP with or without cat ;-). Your exhaust is bottlenecked in the middle.

A roll run with someone aint a bad ideal neither...

Iam sure you wont have any probs selling your current catback if you create a new post about it, its perfect for the people who want to run turbo's. Supercharger needs backpressure, where turbo doesnt want any backpressure!

Oh, and HPT is preatty undetectable from GM techs..... however I am not running HPT because of that exact reason, dont want to risk the warranty.

 

I have about 50 bucks to my name and that exhaust that I can sell for funds so whatever I can sell that thing for and the 50 is what I have to fix the problem so... Not quite sure where to go with it. so maybe 550 is what I have to fix the problem after I sell it of course. Not quite sure what route to run with it. I know I cant get a DP and exhaust for 550 so its back to only another catback and maybe a pulley lol. I really like that SLP catback, I had one on my grand am GT and its was the greatest exhaust ever! soooo expensive though

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