texasreb18

iTrader: (1)

I have been to the track twice now, and both times i have yet to beat my previous best of 13.2 @107 with a 2.0 60'. The 13.2 was done with LT's, MTI lid, and a loudmouth.

Since then, ive added a tsp torquer (specs in sig),and a restalled midwest (restalled to 3500, 2.5 str). The car was tuned by TSP, and made 365 hp and 358tq. The first time i went out i had no 3rd gear, and i was able to run one 13.2/107 w/ a 2.0 60'. I had a stage 2 tranny from ARD put in, and the torque converter was rebuilt as mentioned earlier. I went again last friday, and the best i did was a 13.3/104 with a 2.2 60'.

Tire pressure was left alone, probably about 28#, on street tires. I have none of the free bolt ons (dont ask why, idk either), stock 3.23 gears. The only suspension i have is LCA's and SFC's. So what do you think? i could try getting the ls6 intake and gears, but i would think i would at least be in the 12's by what i have, and i dont want to waste another $300-$600 on parts if they arent going to fix the problem

TIA - Byron

Gauge

iTrader: (3)

What's happening at the track? Trouble hooking? Your 60' and speed are both off. The 60' could just mean that you need a little practice and some better rubber. However, the trap speed is far lower than I would expect. I was trapping 110's with just bolt-ons, and I'm really not a good driver.

93_z28

sounds like you need some better tires.idk why your trap speed is so low,i trap hire in my LT1 with bolt ons and weight reduction

texasreb18

iTrader: (1)

the 13.3 i ran on friday it seemed to hook fine. My first pass tho i broke loose off the line and spun all the way to half track when i let off. I just dont see why trap speed would go down so much with a newer, better transmission. Im not a great driver by any stretch, but i have a basic idea of what to do.

LS1 Lifeguard

no 3rd gear? thats odd

anything else its gotta be tires or your shiftin sucks.
m6 is all about the driver.

Rob98LS1

iTrader: (5)

ya you're mph is way down it should be over 110 from what I have seen other combos do. I'm curious to know why such a low mph too.

Starz T/A 17

iTrader: (6)

If your 3rd gear is completly out thats probally whats hurting you

z28convert

iTrader: (1)

a friend of mine is having issues with 3rd. he said it was a tuning issue. the converter would lockup and hed lose power. did you get a tune with the cam.

y2k_ta

iTrader: (80)

Not neccesarily....I ran a 12.996 with a 2.06 60ft at 108 mph earlier this year. My car is just a bolt on car. Headers, air lid, and tune.

Rob98LS1

iTrader: (5)

ya that's what i'm saying, he's running times that bolt-on cars do and he has a cam as well. Did I mis-read something?

BadAzz96Z28

iTrader: (8)

Get some drag radials, learn to drive your car.....

Shackleford

iTrader: (12)

I think something is off. He should be well into the 12's, especially with that 3500 stall, even without DR's.

ncd1966

iTrader: (2)

i'm going mid 12.50s with LTs, stock cam, stock heads, stock TB, LS6 intake, and a 3400 stall.
with a 1.72 60 ft @ 107mph

get some tires and check your shift points. with a cam you should make more mph than 107

SgtB

iTrader: (3)

For one you need some good sticky tires.
Second you need more gear.
Both of those will yield a better 60ft and also a better ET.
Third, where do you make peak power and what are your shift points at?
More gear and a proper shift point will drop your rpms higher into the power band after the shifts which will help lower your ET.

Trust me on this.

01FormulaTA

iTrader: (20)

wow you should be running way better times....I was close to those times with my '03 bolt-on 4.6 GT.....are you sure its an LS1 and not a V6 lol

texasreb18

iTrader: (1)

starz and convert i was running the 13.2 with no third gear, then got the transmission rebuilt and ran a 13.3. The car was tuned by TSP when i put the cam/original stall in.

SgtB gears will be next on my list as soon as i get some money. Max hp was about 6100 and tq was at about 4800

thanks for the replies everyone

darrensls1

Something is definately off. Look at my sig and you'll see that I am running mid 12's @ 109 with the same mods as you MINUS the cam! My dyno put me at barely 330 rwhp. So riddle me this batman, how can someone with the same type of car, tranny, stall, bolt-ons and a cam make 35 more rwhp yet trap 5 mph less then me?

The 2.2 60' is killing you. You definately need drag radials. But even when I get a real bad launch I still trap at least 106. If I were to guess I would say you should be running 12.1 @ 111 on decent tires with those mods. So even a bad run should still trap at least 108.

What was the weather like? What is the track elevation?

If I were to guess, I would say you got either a bad converter or the car has timing issues and needs another dyno tune. I hope you get it figured out.

Good luck.

Michigan Skip

Gears will be worth about .1. .2 if you're lucky. I switched from 2.73's to 4.10's and gained one tenth. I gained .5 with a switch from stock stall to 3200.

SgtB

iTrader: (3)

I gained 4 tenths going from a stock 10bolt w/3.23's to a moser 12 bolt with 4.10's

everyones car will react differently to mods.

darrensls1

I would think every setup reacts differently. You take a heads/cam car with a big stall and it'll react different to 4.10's then a lid and catback car will. I think a completely stock car taking on the first mod as a 12 bolt with 4.10's will likely only gain .2 in the quarter.

Just like a stall can gain .5 to a stock car but a car with a big cam that is starved for a stall might gain a full second.