Got a baseline for my '93...
10-18-2008, 08:49 PM
#1
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Got a baseline for my '93... So I've been wanting to get my '93 Z28 to the track for a while now to see what it could do before i start doing stuff to it. I got the car a little over a year ago and have fixed some small things with it, and it was running strong now, so i thought i would test it out...
So i'll skip all of the story and just tell you I ended up running 14.1@98.25 with a 2.22 60ft.
I ran a 14.15 with a 2.2 60 on my very first run... so i was excited that I was so close to 13's with a bad 60... my '00 TA got a 1.97 60ft on the stock tires with the stock converter, and I knew the LT1s have some pretty good low end grunt, so i figured I would end up getting that down to a 2.0 and leaving with like a 13.9, which I thought was very cool. But it didn't happen. No matter what I did I couldn't get a better 60. It wasn't the tires either, they didn't spin, the car just wouldn't go until up higher.
Not bad for a 15 year old car with almost 140k miles on it now....
. lol. But any ideas on what's going on with the lack of power down low and bad 60fts?
So i'll skip all of the story and just tell you I ended up running 14.1@98.25 with a 2.22 60ft.
I ran a 14.15 with a 2.2 60 on my very first run... so i was excited that I was so close to 13's with a bad 60... my '00 TA got a 1.97 60ft on the stock tires with the stock converter, and I knew the LT1s have some pretty good low end grunt, so i figured I would end up getting that down to a 2.0 and leaving with like a 13.9, which I thought was very cool. But it didn't happen. No matter what I did I couldn't get a better 60. It wasn't the tires either, they didn't spin, the car just wouldn't go until up higher.
Not bad for a 15 year old car with almost 140k miles on it now....
. lol. But any ideas on what's going on with the lack of power down low and bad 60fts? 
10-19-2008, 09:56 AM
#3
Good pass! What gears are in it?
My 1994 ran a 14.3 @ 97 mph but it has 2.73's. My old 1994 TA ran a 14.1 @ 97 mph but had the 3.23's.
The best way to get it to launch like a bat out of hell is gonna be gears, drag radials and a torque converter. With the stock converter it'll be hard to get it to come out hard since it takes longer to get into it's powerband. With the stock converter, but drag radials and bolt-ons the best I got with my 1993 TA was a 1.93.
My 1994 ran a 14.3 @ 97 mph but it has 2.73's. My old 1994 TA ran a 14.1 @ 97 mph but had the 3.23's.
The best way to get it to launch like a bat out of hell is gonna be gears, drag radials and a torque converter. With the stock converter it'll be hard to get it to come out hard since it takes longer to get into it's powerband. With the stock converter, but drag radials and bolt-ons the best I got with my 1993 TA was a 1.93.
10-19-2008, 12:59 PM
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Thanks guys
The car has 3.23's in it.
Also, the thing that I thought was weird was, my LS1 with stock tires/converter got down to a 1.97 and ran nonstop 2.0's. Then this thing would only go 2.2 with better tires on it. I would think the torque down low would be as good as the LS1 with the LT1. And like I said, no traction problems I don't think, just not going.
The car has 3.23's in it.
Also, the thing that I thought was weird was, my LS1 with stock tires/converter got down to a 1.97 and ran nonstop 2.0's. Then this thing would only go 2.2 with better tires on it. I would think the torque down low would be as good as the LS1 with the LT1. And like I said, no traction problems I don't think, just not going.
10-19-2008, 02:04 PM
#5
From what I've been able to find based on dyno graphs, the LS1 seems to have a very slight advantage down low (2400ish rpm's). The only other thing I can think of is maybe the LS1 has a slightly higher stall speed stock.
10-19-2008, 04:46 PM
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That what i was wondering about actually. With my stock converter in the TA I could get it up to 1600 without a problem really, but with the camaro I launched at 1200 every time but one, and I can barely..... baaaaarely get it up to 1400 without spinning the tires. I was probably at something in the 1300's actually that one time.
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10-20-2008, 12:58 PM
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Haha. Yeah, they were at 24psi. I went to lower them a little bit and they were already there. Brand new tires with less than 200 miles on them. I kinda figured the tire place would have put them higher than that.
10-20-2008, 06:54 PM
#15
but with the camaro I launched at 1200 every time but one, and I can barely..... baaaaarely get it up to 1400 without spinning the tires. I was probably at something in the 1300's actually that one time
