out of the 3 times I ran friday heres how it looked...

1st - Manually Shifting
------------------------------
R/T .:. .890
60' .:. 2.405
330 .:. 6.641
1/8 .:. 10.093
MPH .:. 72.08
1000' .:. 13.015
1/4 .:. 15.522
MPH .:. 89.89

2nd - Trans in "D" only
------------------------------
R/T .:. .867
60' .:. 2.477
330 .:. 6.9.17
1/8 .:. 10.506
MPH .:. 69.94
1000' .:. 13.548
1/4 .:. 16.139
MPH .:. 87.14

3rd - Manually Shifting
------------------------------
R/T .:. 1.072
60' .:. 2.450
330 .:. 6.657
1/8 .:. 10.057
MPH .:. 46.25 <-this doesn't look right, but is what printed on slip
1000' .:. 12.951
1/4 .:. 15.415
MPH .:. 91.31


BTW: This only the second time to goto track, last time I went I only ran it 3 times also. So I might need some more practice. Only quit this time after 3 times because my driver windows started having problems out of the blue (which after I let the car cool down it started working fine).

 

Those times don't look right. You're about 60-70 HP low.

 

first, the window started working because the window motor cooled down. not because the car cooled down. no relation. the motors are old and will do this again. you just have to let the motors cool down and you might get it to go up another inch or they could work fine for a couple more days. weird things.

those are some pretty crappy times (along w/ 2.4x 60' times). do like i said and get a datamaster hooked up and do some WOT runs. let someone read it.

youve replaced a lot of the common failing parts. get a log. might end up having to replace some internals to freshen the motor up. do you know how the car was treated before you bought it?

 

Thats how I race my, when I get to the line I preload it till I can just fell the back end just barely pick up, then punch it on the 3rd yellow light, and I am running 2.07 60' times, which right there is .4 off of your 60' times which means thats .4 at the end right there.

 

yep agreed GM windows motors are weird... good thing I"m a computer tech. found a IBM P166 w/win98 laptop in my closest now just need the serial to OBDI adapter to hook it up and see whats going on. I have some hypertech adapter ODBI -> 15DB but no idea how to hook it up to my laptop. Looking into datamasters now to see how much they run. And will the datamaster work with the Jet module hooked up? I think tomorrow I'll be taking that module off and see how the car runs.

I've had quite a few people tell me the 60' time really is crappy, but I have no idea why. A guy I use to work with told me it could have been because of the old tires on the car so I put new tires on and still about the same 60' times.

And it's funny you brought up internal parts because thats the next thing I was going to start putting money into. Right now getting prices on Rebuilding the transmission plus putting in a shift kit (unless something better is out) and also getting the engine rebuilt, also been pricing LT1 383 Stroker kits. Not sure how all that will work out but already saving up the money.

 

Yeah, times are slow, something is not right. Also it ran slower shifting itself? That's not normal. What did you shift it at that it improved?

 

your low on hp thats for sure. i would look at your plug wires and their routing and check for arcing. also check your plugs. Clean your MAF sensor with electrical parts cleaner (the non residue kind). another thing to do would be to seafoam your car. its an engine cleaner for your engine. go to autozone or napa to get it.

with MAC shorty headers, Callaway Cold air kit, TB airfoil, shift kit, and a cutout on the stock exhaust. i ran 13.81 at 102.1MPH with a 2.1 60' time. I was told that my car was pretty fast for a mild bolt on lt1.

now the 383 takes care of me.

 

I bought the car back in Feb/March from a used car dealer here in town. Guy told me he got the car from a repo-auction. Someone also had painted the underside of the hood yellow with what looked like some type of spray paint, that was all sand blasted off also the part of the intake was painted that had also be scrapped off. Pretty much the car body was ok other than the nose looking like it had be replaced (nothing in carfax about it being wreck only repo’d), but the car was running like crap (ie missing, puttering, noticable lack of power, oil pressure always showing low). I’ve put quite a bit of money into it so far just getting it running smooth. Still having oil pressure showing low when in idle, but once I hit the gas pressure goes up to normal which is more than it was doing before.

(link to one of my first post about car -> old probs)

 

How far down the track are you spinning the tires off the launch? Your 60' and 330' times suck, looks to me like you're blowing the tires off way on down the track, that's a surefire way to get some crappy times... If you're not spinning badly you must be bogging extremely badly. If it's bogging it's a tuning/mechanical problem issue, if you're spinning you just need to learn to launch properly. I'm not familar with fusion tires but if they're cheap hard compound tires like I'm guessing you're going to get crap for traction, they are at least 245s right? Either way if your car is running right and you aren't totally blowing the driving end you should get much closer to a 2.0-2.1 even with cheap 245s...

You'll break well on into the mid/high 14s if you get your 60' time down closer to a 2.0, every tenth on the 60' is actually worth than a tenth off the overall 1/4 time usually... I haven't run my new 94Z at the track yet but with my 87Z going from a 2.25 to a 2.05 60' was worth just shy of a full 5 tenths drop in the 1/4 time, same night with no tuning changes, just better launching... And that's nowhere near the crappy kind of launch you must be doing (or bad running problems) to get 2.4s almost 2.5s...

 

i've run 1.92's on fuzion tires so unless they're abnormally thin, i don't think thats the problem.

ever have a compression test done?

 

Here's some info on the tires I have on my car (245/50R16) Fuzion ZRi (Fuzion Website). I went back and watched the video of my runs (yeah I video them) and it looks like the tires are spinning quite a bit off the start. This could be with my lack of experience. Anyway I can correct this?

 

takes practice. don't build too much rpm at the line or you'll break loose for sure. I just give it enough gas to put tension on the brakes and then ease into it. The rate that you ease into it is what takes practice.

 

i think you should still be runing faster times even with that 60', i ran a 13.80 at 103 with a 2.3 60ft with mods in my sig except for the tires. you should be in the mid 14s i think. id have your car checked out by someone who knows lt1s b4 you waste money on replacing random things like the pcm. ive been there and it can get very expencive that way and you can end up with a car that still runs like crap

 

definitely nonojoe66, a mechanic is a mechanic but a mechanic that knows LT1s is rare around here. Make sure you get it to someone that you know has LT1 experience.

 

hehe.. yeah trying to find someone that knows LT1's in Oklahoma is about as much fun as trying to find a dyno shop.