whats the best combo to run 12's on a 99 z28

jimmy69ss · 11-19-2007, 01:11 PM

ran 13.5 this weekend, has a SLP airbox ,2.73 gears ,flow master muffler , automatic transmission ,would like to run in the 12's without nitrous what the best combo

**Y2KPewterSS** · 11-19-2007, 02:10 PM

Headers and a 3500 stall would put you in the mid 12s.

**35thz28camaro** · 11-19-2007, 03:23 PM

3.73s i picked up .4 going from 2.73 to 3.73

**chevy1966** · 11-19-2007, 04:22 PM

Originally Posted by jimmy69ss

ran 13.5 this weekend, has a SLP airbox ,2.73 gears ,flow master muffler , automatic transmission ,would like to run in the 12's without nitrous what the best combo

Was this in the black vert in ur sig?

**greatwhiteZ28** · 11-19-2007, 04:58 PM

lid, filter, cat back, free mods ( 12.901) for me

**Y2KPewterSS** · 11-19-2007, 04:59 PM

I didn't realize this was on a vert, which makes a difference. You wouldn't run mid 12s with headers and a stall, but would still be in the 12s.

**kebie05** · 11-19-2007, 08:34 PM

i didnt realize it took so little to get into the 12s.

**01SOMSS!** · 11-19-2007, 08:37 PM

and a driver mod. I've seen guys w/ heads and cam hitting 13.2's

jimmy69ss · 11-20-2007, 04:02 AM

Originally Posted by chevy1966

Was this in the black vert in ur sig?

YES IT IS A CONVERTIBLE WITH 74K MILES ,HOW MUCH HP WILL THE STOCK REAR HOLD UP TO ?

**blue02Z** · 11-20-2007, 04:59 AM

it will take you into the 12's fine if you treat it nice

**2000T/A Guru** · 11-20-2007, 08:00 AM

I have headers, catback and a lid, i run high 12s, with a stall rear end gears and a cam you could be low 12s high 11s.

**joker_01z28** · 11-21-2007, 12:35 PM

dumb question, but what is the differance between say a 3200 stall lockup vs a 3200 stall non lockup?

**Y2KPewterSS** · 11-21-2007, 01:09 PM

Originally Posted by joker_01z28

dumb question, but what is the differance between say a 3200 stall lockup vs a 3200 stall non lockup?

A non lockup convertor will always keep your RPMs high. It never closes up allowing the RPMs to drop to 1500-2000 range.

**silverz28camaro** · 11-23-2007, 05:55 PM

pick your poison mods and times in sig.

**dont** · 12-17-2007, 05:11 AM

Gears And Converter..................

**allbaugh_04** · 12-25-2007, 02:52 PM

don't forget a good tire

**ragenz28** · 01-11-2008, 02:26 PM

13.5 with what mph and with what 60ft?

Those are the two most important things to list, one to tell how good the traction is and to tell how much power the car is making.

jimmy69ss · 01-14-2008, 05:16 AM

101 mph ,2.03 60 ft , good air and track was hooking,that same day a local stock looking c5 vert ran a 9.47,it was the same black vett that was on PINKS ALL OUT IN DALLAS ,BAD AZZ CAR

**fraz1le** · 01-14-2008, 07:55 AM

I think Long tubes are as good a mod as you can do, get rid of the flowmaster its probably hurting you. I went 12.67 with hptuner, 2.73, Lt's, xpipe, and lid on street tires w/1.89 60'. I would say lt's a pulley and a little weight and you should be right at 12's door.

**RANSTRANSAM** · 01-17-2008, 06:55 PM

Originally Posted by jimmy69ss

ran 13.5 this weekend, has a SLP airbox ,2.73 gears ,flow master muffler , automatic transmission ,would like to run in the 12's without nitrous what the best combo

hey man do all the free mods and you will be in the 12s. mines 2001 ta with all the free mods runs 12.80@107mph