New LS1 Owners - Newbie Tech - questions on quarter mile times for 98 ls1

Please help ?!?!?!? i have a 98 trans am with some bolt ons. it has slp airlid, smoothe bellow and an 85mm maf, also an slp y-pipe and corsa exhaust system 3inch. it has only 38,000 miles and is in show condition. i still do many shows but i am aiming ti get back into racing with it as well. my best time was 13.5 at 100.40 and best 60' was 1.98. i have 3:42 gears but am going to 3:73 with a 2200 vigilanti stall as well as kooks headers their y-pipe with magnaflow cats using my exhaust that i have now. also i am getting an intake ls6 high flow. where should i be when all is said and done. thank you for your time :drive:

Please help ?!?!?!? i have a 98 trans am with some bolt ons. it has slp airlid, smoothe bellow and an 85mm maf, also an slp y-pipe and corsa exhaust system 3inch. it has only 38,000 miles and is in show condition. i still do many shows but i am aiming ti get back into racing with it as well. my best time was 13.5 at 100.40 and best 60' was 1.98. i have 3:42 gears but am going to 3:73 with a 2200 vigilanti stall as well as kooks headers their y-pipe with magnaflow cats using my exhaust that i have now. also i am getting an intake ls6 high flow. where should i be when all is said and done. thank you for your time :drive:

13.5@ 100? Something is wrong there, I am guessing your 85 mm maf is causing you to run very badly.

-Todd

Prob. high twelves but could improve with higher stall.

With traction and a stall, I expect much better than just high 12's. Just look at my signature. Imagine if I had LT's...

-Todd

For your A4 with a 2200 stall and the other mods you are looking at, I'd say 12.8-12.9. A higher stall would put you mid twelves. If the rear is stock you probably have 3.23's or 2.73's

Oh yes, let there be traction.

What the hell? 13.5?? i got an 01 ls1 automatic had 45,000 miles on it all i had was borla cat back and a K&n and i ran a 13.1? maybe i got a good runn' motor... ive also seen a 02 t/a run 12.9 bone stock!!!! with street tires....

it is driver as well, how was your reaction tip, did you spin, I even know people who get gas shy and let go a bit.

What the hell? 13.5?? i got an 01 ls1 automatic had 45,000 miles on it all i had was borla cat back and a K&n and i ran a 13.1? maybe i got a good runn' motor... ive also seen a 02 t/a run 12.9 bone stock!!!! with street tires....

No that is perfectly fine. 01-02 are a tad bit faster, but if properly driven, low low 13's and high 12's are possible. Autos are of course more consistent. :)

-Todd

Altitude can also come into play. Also the track. Weather, humidity, etc etc. At the nicer track of colorado (bandimere, 5400ft) most TAs are only running mid to low 14s. The really shitty track in colorado (PMI, 5000ft) most TAs are running mid to high 14s. It truly makes me sad...but I suppose its not too bad, because the other cars are slower too. But I hate having a 14 sec car!

it is driver as well, how was your reaction tip, did you spin, I even know people who get gas shy and let go a bit.
ty for the reply. my reactions are great my best was .501 and my worst was .548. i aqm very constistant with reaction times and no slipage at the line. i am stumped , :bang: :bang:

it is driver as well, how was your reaction tip, did you spin, I even know people who get gas shy and let go a bit.
thank you for the relp. i am very consistant with ets. my best was .501 my worse was still n the .500 range which is unheard of at the track. pleaae help i am confused stil lol \

With traction and a stall, I expect much better than just high 12's. Just look at my signature. Imagine if I had LT's...

-Todd
ty for the reply. i have heard many different opinions on why i am seeing the times that i am. i think the best thing to do is get different gears and maybe 3200 stall. headers should help as well as the intake by f.a.s.t. where do u thinkk i will be after that stuff is done i am hoping for low 12 :)

Altitude can also come into play. Also the track. Weather, humidity, etc etc. At the nicer track of colorado (bandimere, 5400ft) most TAs are only running mid to low 14s. The really shitty track in colorado (PMI, 5000ft) most TAs are running mid to high 14s. It truly makes me sad...but I suppose its not too bad, because the other cars are slower too. But I hate having a 14 sec car!
lol i know how you feel. my car looks like no other t/a. people say its looks like it should do 11s lol i will get there. i just want to get in the 12s first but ty for the imput it helps .

ty for the reply. i have heard many different opinions on why i am seeing the times that i am. i think the best thing to do is get different gears and maybe 3200 stall. headers should help as well as the intake by f.a.s.t. where do u thinkk i will be after that stuff is done i am hoping for low 12 :)

low 12's will be pushing it without some suspension work, a 12 bolt and some tires.

-Todd

That MPH is very low for those mods. The time only depends on traction but your MPH refects your HP. Are you above or below sealevel? With my auto, I ran a 104.2 and that was with a catback and lid and it was a 99 with 2.73s in Raceway Park NJ.

ty for the reply. i have heard many different opinions on why i am seeing the times that i am. i think the best thing to do is get different gears and maybe 3200 stall. headers should help as well as the intake by f.a.s.t. where do u thinkk i will be after that stuff is done i am hoping for low 12 :)

I would guess a 3200 stall will shave approx .5+ second off that time.

And you may want to consider a tune after the TC install.

13.5 is a good time in a 98' Trans Am. Also, going from a 3.42 to 3.73 will definitely need drag radials.

Good luck though. :cheers:

your mph sucks... the time isnt too bad, though some cars do better. What was your 60'?

I dont think you will be satisfied with a 2200 stall... get something around 3000ish, and you will definitely see a more significant difference. with the LT's and gears, and traction I would say mid 12's...

His best 60' was 1.98.

60 foot ain't bad, I vote up the converter and get stickier tires while you're at it, you would be looking at 12s for sure

Low to mid 13's with a lid-catback A4 is pretty average. That's where I am with my 2000. Like everybody says, a converter and some tires will get twelves.

Take your car to a Dyno.

Your MPH is terrible. The only reason you got a 13.5 was your terrific launch on street tires. If you would have had a 2.2 60' (which is common for guys new to the track) you would have been somewhere around 14.0 @ 100.

What was the track elevation? How hot and humid was it when you ran? On a 90 degree day with a 700 foot elevated track I pulled a 13.5 @ 103.79 with just a lid and catback on a 2.1 60' so I'm thinking your car is a good 3-5 mph under par for trap speed. You may want to have it checked out by a mechanic or LS1 guru.

Good Luck

That MPH is very low for those mods. The time only depends on traction but your MPH refects your HP. Are you above or below sealevel? With my auto, I ran a 104.2 and that was with a catback and lid and it was a 99 with 2.73s in Raceway Park NJ.
thanks again this information is really helpfull. i race at new england drag way up in new hampshire so i'm not sure. but based upon location i would say above sea level. i really would like to get a dyno on the car to get more info that would really ve a very important key of info. but plan of attack is gears, tires, headers,y-pipe, and suspension then we will see thsanks again man and good luck with your ride. :drive:

I would guess a 3200 stall will shave approx .5+ second off that time.

And you may want to consider a tune after the TC install.

13.5 is a good time in a 98' Trans Am. Also, going from a 3.42 to 3.73 will definitely need drag radials.

Good luck though. :cheers:
thank you for the imput man it is really helpfull. i think i;m going to attack this problem with the 3:73gears 3000 to 3200 stall. rear suspension and the rest of the exhaust. my ultimate goal is to be an 11 second street car. but first i need to get in the 12s. first things first right lol :drive: :drive:

Please help ?!?!?!? i have a 98 trans am with some bolt ons. it has slp airlid, smoothe bellow and an 85mm maf, also an slp y-pipe and corsa exhaust system 3inch. it has only 38,000 miles and is in show condition. i still do many shows but i am aiming ti get back into racing with it as well. my best time was 13.5 at 100.40 and best 60' was 1.98. i have 3:42 gears but am going to 3:73 with a 2200 vigilanti stall as well as kooks headers their y-pipe with magnaflow cats using my exhaust that i have now. also i am getting an intake ls6 high flow. where should i be when all is said and done. thank you for your time :drive:You should be somewhere in the high 12's. If I were you I would get a higher stall converter. Maybe a 3200 or something. With a better converter and good traction with good air you should be able to get into the mid to low 12's.

thank you for the imput man it is really helpfull. i think i;m going to attack this problem with the 3:73gears 3000 to 3200 stall. rear suspension and the rest of the exhaust. my ultimate goal is to be an 11 second street car. but first i need to get in the 12s. first things first right lol :drive: :drive:With nitrous you might be able to bypass the 12's all together. What ever you decide good luck!