I went to track last thursday. The car is a 1995 camaro z28 with a cc503 (224/230 .510/503 1.5rr), 1.6rr comp magnums, k&n cai, 58mm tb, new valvetrain and the heads and intake were gasket matched along with the intake to the tb. I swapped the 4l60e for a t56 and i have 3.23 gears. It has a mail order tune by madz.

I ended up running a dismal 13.5 @ 101 with a 1.9 60 ft. I was 8.76 @ 82.2 at the eighth. These times seemed lower than what they should have been to me.

I did put in 87 octane instead of 93 because i was broke and thats what i had in the garage. And i had 27 inch slicks on my car, and that probably made the gear more like a 3.00. How much do you think the combination of that affected my time? Next week i will be running 93 octane and 315/35/17 DRs.

Thanks to all who contributes their thoughts and predictions for next week.

 

Well first off you should have ran some 93 octane, the car was probably having some knock issues with the low octane.

With the mail order tune I am sure the timing tables have been modified, the PCM was probably retarding the timing, I bet if you run some 93 octane the car will improve greatly.

 

Somthing isnt right , I ran 13.6 stock and just did what you have on your car and hope to pick up more then a tenth . Iam going to do a dyno tune first before i even go to the track , Iam starting to wonder about this mail order tune

 

u had no gears and horrible gas. im surprised u ran that good

even with the drs u r gonna want to run lower gears than 3.23
and esp with the tuning its gonna run like crap without 93. esp on mail order tunes they tune it specifically thinking u will only run that gas in it.

 

Yeah i always put 93 octane in it. And i told my dad and hes like no it will be fine, even after i said the tune was for 93. Smh. Well ill post what i run this thursday.

 

i ran 13.5 @ 103.97 with a 4:11 gear and bolt ons with bald street tires and a 2.0 60.. id say its gears holding you back....

 

The tune is likely decent not on the money by any means. Those 3.23s are absolutly killing you and specially with a mild cam you need the gear. I ran mine with headers and 4.10s with a dr and could only muster a 13.8 @ 102 with a 2.2 60ft bad prep couldnt hook for ****. Minimum gear id run is a 373 but if it were me it would be no question but 4.10s. After you change the gear and 93-94* gas you should be into the 12s easy if you can launch it.

 

mine in sig ran low 12.70's @108mph w/4.10's and a pcmforless mail order.......I know there was more in it but I didn't wanna kill the 10 bolt

 

Sweet time , Now i cant wait to get to the track , well after i practice with the t56 now

 

Yeah a 4.10 is next on my list. Ricer math tells me thats worth about half a second. I was launching at 5k rpm and only got a 1.9 60 ft? It was fun At the least. I just hope i can save up enough for a gear before it gets too cold! I shouldnt have even posted this thread until i ran on 93 octane. Didnt go yesterday due to rain. Ill post what i run and a video thursday, its supposed to be great out.