LT1-LT4 Modifications 1993-97 Gen II Small Block V8

somthing wrong (it might be me)

Thread Tools
 
Search this Thread
 
Old Jun 10, 2009 | 10:44 PM
  #1  
mattgt40's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2008
Posts: 134
Likes: 0
From: Des Plaines IL
Default somthing wrong (it might be me)

so i went to the track tonight & i wasnt to happy about my E.T i think i should run faster the mods are in my sig tell me what you think

first run

R/T- .553
60FT- 2.06
1/4-14.14
MPH-94

sec run
R/T-.459
60FT-2.02
1/4-14.11
MPH-96
Reply
Old Jun 10, 2009 | 10:46 PM
  #2  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

Elevation? Weather?

I think you're down on power somewhere, but not far off. Are you on the stock stall?
Reply
Old Jun 10, 2009 | 10:53 PM
  #3  
mattgt40's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2008
Posts: 134
Likes: 0
From: Des Plaines IL
Default

Originally Posted by RamAir95TA
Elevation? Weather?

I think you're down on power somewhere, but not far off. Are you on the stock stall?
not sure on the elevations but i was in WI it was about 60
yes its a stock stall
Reply
Old Jun 10, 2009 | 11:09 PM
  #4  
Grr's Avatar
Grr
TECH Fanatic
20 Year Member
Photogenic
iTrader: (2)
 
Joined: Mar 2005
Posts: 1,363
Likes: 1
From: Fargo ND
Default

wow thats bad, im assuming you did a re-tune with the cat delete and 3.73s? 60' is decent for stock stall and street tires
Reply
Old Jun 11, 2009 | 12:05 AM
  #5  
Counted Out's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Feb 2008
Posts: 1,714
Likes: 0
From: Tucson, AZ
Default

It's not TOO off, the only power mods you have are a Cold Air intake and an exhaust. You would think with the gears you'd be in the 13's though.
Reply
Old Jun 11, 2009 | 12:55 AM
  #6  
mj114679's Avatar
On The Tree
 
Joined: Jan 2009
Posts: 199
Likes: 0
From: Waco, Tx/ Houston, Tx
Default

i ran a 14.02 with a 60 ft of 2.2 with my car a couple weeks ago. but i got a problem with my shifting.... i am sure i could of been in the high 13's EASY!!!

All i need are gears, bigger stall, tires, headers and it will be mid 13's if not low.

i say you got some power loss somewhere who did your tune?
Reply
Old Jun 11, 2009 | 01:43 AM
  #7  
michaelz28lt1's Avatar
Teching In
 
Joined: Sep 2004
Posts: 26
Likes: 0
From: St. Louis
Default

Are you spinning coming off the line? With drag radials and 3.73s you should be able to cut a 1.7-1.9 sixty foot. If your not getting the best of traction try lowering your air pressure. With the mods you have, I would think you should be in the 13.6-13.9 range.
Reply
Old Jun 11, 2009 | 08:05 AM
  #8  
Purple95Z28's Avatar
TECH Enthusiast
15 Year Member
iTrader: (6)
 
Joined: Nov 2007
Posts: 529
Likes: 0
Default

Forget about the ET or 60 foot time, there is clearly a problem in the MPH. I'd say you have an ignition problem to track down (at least that's where I would start), but it could be anything, like a sticking brake caliper for example.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Jun 11, 2009 | 08:27 AM
  #9  
mattgt40's Avatar
Thread Starter
On The Tree
 
Joined: Feb 2008
Posts: 134
Likes: 0
From: Des Plaines IL
Default

i was spinning a little of the line & my tire pressure for the first run was 20 then i lowered it down to 16 on the sec run
the programmer was done by the old owner with a hyperpack programmer 3
Reply
Old Jun 11, 2009 | 08:35 AM
  #10  
dlk1950's Avatar
12 Second Club
 
Joined: Sep 2007
Posts: 593
Likes: 0
From: Portage Pa.
Default

Your car is the same as mine was at that point,,always seemed a little slower than most,,yank3600, MT dr's & tune for stall and shift points got me 13.7s
Reply
Old Jun 11, 2009 | 09:10 AM
  #11  
moehorsepower's Avatar
TECH Addict
iTrader: (3)
 
Joined: Feb 2003
Posts: 2,334
Likes: 17
From: Texas
Default

That is pretty bad, My car back in 95, Bone Stock off the showroom floor, A4 with 2.73's out back went 14.0 @ 99mph...
Reply
Old Jun 11, 2009 | 09:45 AM
  #12  
trippinholyman's Avatar
Launching!
 
Joined: Feb 2009
Posts: 280
Likes: 0
From: bodymore
Default

hypertech is crap, get a mail order. those computer chip tuner things you can buy for 200-300 dollars usually make a car perform worse. only good for setting gear size so your speedo is right
Reply
Old Jun 11, 2009 | 10:34 AM
  #13  
acammer's Avatar
On The Tree
15 Year Member
Photogenic
iTrader: (1)
 
Joined: Mar 2009
Posts: 185
Likes: 0
From: Central NY
Default

MPH looks low, arn't stock Lt1 cars able to trap 97-99mph? A 1.9 60' would have got your 13's - how are you leaving the line, flashing, off idle, hard against the converter?
Reply
Old Jun 11, 2009 | 11:01 AM
  #14  
kinglt-1's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Jul 2005
Posts: 5,898
Likes: 255
From: Ft. Wayne, IN
Default

yea somethin is not right, my buick went 14.0 @ 99 on a 2.19 60ft. That was with down pipe and 3.5 pulley only. My z trapped 105(on a 90 degree day too) when stock with cai and catback only. I would scan the car for missfires and/or kr. Get rid of the hypershit and get a mailorder tune, maybe check the plugs and wires. Fuelfilter might need replaced, do all the possible maintnence stuff that has not been done.
Reply
Old Jun 11, 2009 | 11:35 AM
  #15  
1slo_camaro's Avatar
TECH Fanatic
15 Year Member
iTrader: (2)
 
Joined: Apr 2008
Posts: 1,169
Likes: 1
From: Born/Raised North East, MD Lived in VA, NC, MI Back in Yorktown, Va
Default

he prolly cant bring the car to much off idle. i rember my 383 with a stock stall anything over 2k would even break loose a set of Nittos and at 2200 MTs would break loose like power breaking it so i had to just barely come off idle. you have some good numbers for your reaction time. are you shifting the car manually? or just letting the electronics do it? mine would run about .2-.3 quicker in the 1/8th if i manually shifted it. but agreed call bryan at PCMforless and get him to send you a tune i dont remember his pricing exactly but i wanna say its only like 50 bucks for him to tune it. and 40 for him to overnight it back to you. something like that. but give him a shout he will def. hook you up.
Reply
Old Jun 11, 2009 | 01:21 PM
  #16  
94Z28rag's Avatar
TECH Fanatic
iTrader: (10)
 
Joined: Jun 2008
Posts: 1,217
Likes: 1
From: West Chester, PA
Default

Originally Posted by Purple95Z28
Forget about the ET or 60 foot time, there is clearly a problem in the MPH.
That's the only thing the OP should look into...he's 8-10 MPH off.

ET is irrelevant. That low of a MPH tells you everything. Something is very wrong.

Also, you shouldn't spin at all with Nittos and stock stall. Roast them in the box.

Last edited by 94Z28rag; Jun 11, 2009 at 01:42 PM.
Reply
Old Jun 12, 2009 | 01:23 AM
  #17  
kinglt-1's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Jul 2005
Posts: 5,898
Likes: 255
From: Ft. Wayne, IN
Default

I wouldn't say hes 8-10 mph off, it's an a4 so it should trap 101-103 range.
Reply
Old Jun 12, 2009 | 06:48 AM
  #18  
96formulabird's Avatar
Launching!
 
Joined: Apr 2007
Posts: 228
Likes: 0
From: Mt. Airy, Maryland
Default

my car ran a 13.4 @100 with mods in sig. as it says lt's, ory, elec cutout, magnaflow catback, moroso CAI, underdrive pulley, shitty street tires with not alot of tread, stock stall. also car was tuned. my 60 foot was 2.0 with a reaction time of .399. spinning for first 30 feet. my mph is low too, but the et is about right. thats just what i ran to give you something to go by a little. with DR's and stall and gears i could probably run very low 13's or so.
Reply
Old Jun 12, 2009 | 08:35 AM
  #19  
Purple95Z28's Avatar
TECH Enthusiast
15 Year Member
iTrader: (6)
 
Joined: Nov 2007
Posts: 529
Likes: 0
Default

Originally Posted by 96formulabird
my car ran a 13.4 @100 with mods in sig. as it says lt's, ory, elec cutout, magnaflow catback, moroso CAI, underdrive pulley, shitty street tires with not alot of tread, stock stall. also car was tuned. my 60 foot was 2.0 with a reaction time of .399. spinning for first 30 feet. my mph is low too, but the et is about right. thats just what i ran to give you something to go by a little. with DR's and stall and gears i could probably run very low 13's or so.
That's pretty bad too. A stock A4 LT1 should trap ~99-100mph assuming the conditions are good.
Reply
Old Jun 12, 2009 | 08:35 PM
  #20  
96formulabird's Avatar
Launching!
 
Joined: Apr 2007
Posts: 228
Likes: 0
From: Mt. Airy, Maryland
Default

Originally Posted by Purple95Z28
That's pretty bad too. A stock A4 LT1 should trap ~99-100mph assuming the conditions are good.
thats why i said the mph is not there and i dont why either. my car was tuned by then and was not missing and everything is a ok. car has never ran better. my ET is good, but yes as i said i know the mph is not there and i really dont know why. car has no problems, so that is def not it.
Reply




All times are GMT -5. The time now is 11:33 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE