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

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Old May 6, 2009 | 10:27 PM
  #21  
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Id also shift higher. My mostly stock auto shifts at 5800, my old car 6100.
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Old May 6, 2009 | 10:28 PM
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Originally Posted by ElkySS
ur 60 fts are worse than most civics i see.
lol this had me laughing for a good minute
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Old May 6, 2009 | 10:28 PM
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Ok Seems your shifting way to low, whats that cam spec?
With my Head cam combo now im shifting now 67-6800 running 11s at almost 120mph
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Old May 6, 2009 | 10:31 PM
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112 lobe, 287/287 Advertised Duration, Duration at .050 226/226, Lift .520
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Old May 6, 2009 | 10:32 PM
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oh and ya need DRs
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Old May 6, 2009 | 10:34 PM
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What is a TPis tune?
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Old May 6, 2009 | 10:37 PM
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this is where most of my stuff came from...they are a good shop.
http://tpis.com/index.php?module=default
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Old May 6, 2009 | 10:48 PM
  #28  
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Honestly man it seems like a big issue is the driving. I've been able to cut 1.90 60ft times with just worn out street tires and went 8.20's with a mild H/C combo. Seems like you should be able to at least cut 60's in the low 2's. Ever had it dynoed to make sure it's making the kind of power it should?
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Old May 6, 2009 | 10:52 PM
  #29  
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why are shifting so low. are you doing any type of burn out. i say drop ur air press. to 20 do a rolling burn out. plus go to the track as much as possible. seat time is ur best friend.... plus check ur fuel pump,fuel filter and check 4 burnt wires
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Old May 6, 2009 | 10:52 PM
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not yet no...I just got it running right yesterday...had a huge problem with the #5 cylinder misfiring all the time...turned out to be a spark plug wire grounding out on my header. I still have a SES light...going tomorrow to get the computer read
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Old May 6, 2009 | 11:01 PM
  #31  
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Dude. You need drag radials, higher shifting, and LOTS of seat time. Definitely get the tuning issue worked out, but 2.6 60ft's won't cut it if you're looking for good times.
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Old May 7, 2009 | 11:39 AM
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your trap speed is horrid! when my car was dead stock from paper air filter to stock manifolds it was trapping slightly better than 101 and i was getting 2.1 - 2.2 second 60ft's launching from 1200 rpm on shitty rock hard BFGoodrich KDWS's
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Old May 7, 2009 | 11:44 AM
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are you sure you got it firing on all 8 cylinders cuz thatll do it too
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Old May 7, 2009 | 11:50 AM
  #34  
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Originally Posted by Z28Camaro30Ann
like I said... at 3500 RPM launch they went into a DEAD spin even at half throttle....at 3000 RPM launch, the car bogged and almost died....I had to double clutch to get it moving again
You need to learn how to slip the clutch a little.

Definitely shifting too early. Even a completely stock LT1 should be shifted at at least 5800 rpm.

As stated, get DR's and cut down those 60' times. A 1.8 would be something to shoot for.

Get the code read, check the car for burnt or loose wires. Check your fuel pressure.

Any dyno numbers?
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Old May 7, 2009 | 12:10 PM
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first off, like said before you need some seat time, better driving will better that time some.

secondly, there is something wrong with your car too. i say either you have low fuel press., something wrong with the spark or your tune is waaaaayyyyyy off. sounds like it may be running reallly rich
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Old May 7, 2009 | 12:17 PM
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Originally Posted by AChotrod
SLow is not the word. A blown up car could run that. Something aint right.
Originally Posted by ElkySS
ur 60 fts are worse than most civics i see.


i just **** my pants seriously. . .

on a side note: do not run that car anymore until you figure out whats wrong with it! something is very very very very very very very vert i could type that 6 more times and still not fully emphasize how wrong something is with that car.
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Old May 7, 2009 | 12:37 PM
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shift higher, like at 6k rpm. if you have upgraded valvetrain (probably yes since you have a cam installed) then find out where your cam makes peak power, then shift it at that rpm. if youre making a steady curve up until 6400 and you shift at 800 below that, you are not gonna make all the power. so shift at the point where your hp peaks.
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Old May 7, 2009 | 01:09 PM
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Originally Posted by trippinholyman
shift higher, like at 6k rpm. if you have upgraded valvetrain (probably yes since you have a cam installed) then find out where your cam makes peak power, then shift it at that rpm. if youre making a steady curve up until 6400 and you shift at 800 below that, you are not gonna make all the power. so shift at the point where your hp peaks.
Ideal shifting points are at a few hundred rpm after peak power, not at peak power.
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Old May 7, 2009 | 01:53 PM
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Surprised nobody has said you should have 4.10s in the rear for a 6 speed. Still does not explain your 15 second 1/4, but it sure doesn't help it either.
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Old May 7, 2009 | 01:57 PM
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Originally Posted by IronOutlaw
What is a TPis tune?
A tune from tpis...pretty pricey.
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