I ran a best time of 14.238 on 255s at 101mph(Hooked up great). Put different tires on 245/50R16 ran 14.22 at 102mph with tires spinning. Only mod is Borla exhaust. 2.73 rearend. Will Headers only put me into the 13s?

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Todd Schroder

 

if you can afford it go to headers but the easiest thing to put you in the 13s is to change that gear to atleast a 3.23. With just a stock gear and a flowtech dumppipe I ran 13.5.

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98 Red Z28 A4 bought on 4/02/02.
Flowmaster, K&N Filter, Flowtech Dump pipe.
Best 1/4: 13.554 at 102.62

 

What year is your car??? And what tranny?? 6 speed or automatic??

I thought that most LS1 F-bodies were almost guaranteed a 13-something down the 1/4 mile!? I haven't had a chance to run my car yet, but I'm going to the track in about two weeks to run it for the first time (I've got 3000 miles on the car already, and by then I'll probably have over 4000 miles, so the motor should be nice and broken in).

I was hoping to get at least a mid-13, and maybe a low-13 if I was lucky, but I don't want to go there and only run a 14!!!!

Can someone clear this up?! Is it true that "The Almighty LS1" can only run in the 14's?????

To answer your question though: YES, headers are a BIG improvement to any motor, and if you're already at 14.2, headers should give you enough of a boost to break into the 13's.

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2002 Z28 - A4, 2.73's, Blk/blk, leather, T-tops, sport appearance package - just bought on June 26, 2002! - Pics

1981 Z28 - 383, TH350 trans., 3.42 posi - sold August, 2000 - Pics

1973 Camaro - Dad's & my project in the works - to be built: 355 Chevy, 11.5:1 pop-ups, "camel hump" heads (w/2.02 valves), solid cam, 4-speed.....it should be quick! - Pics

 

in gm high tech magazine they tested the 1999 Ls1 and the best run they had at the track was 12.89 with the 6 speed trans...any LS1 even the automatics should be able to run high 13's easily stock..

 

HAHAHA, I agree, this car should be running 13's with that trap speed. Wait until a cooler day or go to a different track. Something is wrong. Also see if everyone else there is running unusually slow. Good luck with your 13 sec dreams.

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95 White t-top Z28 M6 Mods include: Hotcam, Macs w/ offroad pipe, flowmaster, airfoil, TB bypass, !EGR, !CAGS and a B&M ripper shifter. Many more to come. I will have some times after I break in my motor.

 

First off, the car is very likely an automatic with that 2.73 ring'n'pinion.

Biggest difference on automatics will be the torque converter and gears. Also, what were your 60' times? For each .1 reduction in the 60' time generally yields .15 reduction in ET.

Longtube headers tend to gain .3-.4 on heads/cam cars. I'm not convinced any header on a stock LS1 engine will drop you .3 without other mods.

edit: Dang that's a big signature, let me clean that up...

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1998 Chevrolet Camaro Z28 - Navy Blue Metallic 6-speed
Best 60'/ET/MPH: 1.95/12.33/115.06, before LS6 intake.
SAE DynoJet: 402HP, 378TQ [366/344 before intake].
Power Mods: FTRA, FRA, FRA2, K&N 33-2118, Whisper Lid, Whisper MAF Ends, TB Bypass, LS6 manifold, CNC Inc. 2.02/1.57 heads, CC 218/226 527/535 112 cam, CC 26918 springs, NGK TR55s@.050, Grot headers/Y-Pipe/CarSound cats, 3" cutout, Ed Wright tuning, SPEC StgII clutch.
Other Mods: 265/40/17 Bridgestone Pole Position tires, Enkei Win wheels, Hotchkis PHR/STB/LCA's, Addco 32/21mm F/R swaybars, Powerslot rotors, Hawk Plus brake pads, Stainless brake lines.

[This message has been edited by JimMueller (edited August 06, 2002).]

 

Actually if the car came with a 2.73 gear it has to be automatic. On all LS1 Fbodies A4s got a 2.73 stock with 3.23 optional and the M6 got a 3.42. Just clarifying for everyone.

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98 Red Z28 A4 bought on 4/02/02.
Flowmaster, K&N Filter, Flowtech Dump pipe.
Best 1/4: 13.554 at 102.62

[This message has been edited by maddboost (edited August 06, 2002).]

 

Thats 3.42 for the M6

 

Close...M6 got 3.42's

 

Thank you for both for correcting me sorry I cant be so thorough I am at work.

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98 Red Z28 A4(3.23) bought on 4/02/02.
Flowmaster, K&N Filter, Flowtech Dump pipe.
Best 1/4: 13.554 at 102.62

 

Doh...! Speedy beat me to it!

 

Ummmm..... How about giving us the proper info about what kind of car you are talking about champ! For all I know your referring to a 1979 Pinto. Sounds like you are running an LT1 Camaro and you are right about where guys are when they are stock. You need to tell us more, yr, mods, etc.

Btw, low 13s are a piece of cake with a slightly modified LS1, check my sig, if you know how to drive of course.

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99 SS, Dark Metallic Blue, M6
SLP lid, KN, TBB, SLP Y-pipe, SLP loudmouth
ported MAFs, Fernco, Nitto 315 DRs
Currently: 1/4 13.15@114, 0-60 4.85 (w/passenger) Gtech'd

 

Well I certainly hope hes not driving an LT1 how dare he cloud our message board with such useless information(yea like what Ive had to say is so important). Shame on you LT1 go to your own forum.

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98 Red Z28 A4(3.23) bought on 4/02/02.
Flowmaster, K&N Filter, Flowtech Dump pipe.
Best 1/4: 13.554 at 102.62

[This message has been edited by maddboost (edited August 06, 2002).]

 

Alright, 2000 Z28, 2.73 gears automatic, Borla exhaust. That's about it. Had a Jet chip(took that thing out)Strip is in Juselsburg Colorado. Hight altitude.Ran the 14.22 on a hot day.

 

OK, you're at altitude - 3500 track elevation and probably another 1500 feet DA for the weather ... so low 14 for a bacically stock isn't to far out of whack.

How's your 60s. Launching is generally the quickest and easiest way to improve your times ... sounds like you have a couple of sets of rims ... get some sticky tires for the 16" set and that will help your launches.

Also, doesn't look like you have a lid or any other intake mods ... get a lid or a FIPK.

Good Luck

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'01 Mystic Teal Z28
A4/3.73
Mods List Here

12.12/112.81/1.70 60'
325 rwhp/341 rwtq
www.MysticZ28.com

NorCal LS1/LT1

"To play it safe is not to play"

[This message has been edited by V6toZ28 (edited August 06, 2002).]