fuzzyjk

iTrader: (4)

94 Z28, AT, limited weight reduction, 3.23 stock gears, following mods...

Rebuilt block 355 forged pistons (stock crank/rods)
re-ported budget LE Heads
Manley Valves 2.00" Int/1.56"
APR throughout
1.6RR gold
Trick Flow PR
Crane 227
918 springs
ported stock intake
BBK shorty headers
cat delete
egr/air delete
Alt relo-a/c delete
full wrap for exhaust
60lbs injectors
225 fuel pump
STS rear mount
T67 upgrade
8.5 spring
Snow meth kit
Ebay air to air IC
LTCC
New GM remanned tranny (was in the car when I purchased 3000 miles)
3000 Edge custom stall
BMR trak pak with adj torque arm
Koni on the corners
*drag radails*


I just purchases a DD that ran a 11.78 and I want to make sure my "project" would put a woopin to it.

Puck

iTrader: (17)

If it doesn't you need to light it on fire.

1993 z28 f1

iTrader: (6)

Hey:

May need 3:73 gears to get alot more from it, but should right there, if not Lgas w/plate kit will do it.

Dub

When In Doubt Do Without

whytryz28

iTrader: (28)

Im pretty much 12's with just shorty headers, stall, gear and tune on a 200k mile motor.

You better be low 11's with that combo.

spaz1

iTrader: (9)

I don't think it will on street tires. What's te DA there..

3rdgen92maro

iTrader: (20)

With a good set of drag radials on there I don't see why it wouldn't. Traction is deff going to be the limiting factor if your on street tires.

Elliott's94Z

iTrader: (12)

Get rid of those 3.23 and swap in some 3.73's

AChotrod

iTrader: (17)

Whats your DD?

speed_demon24

iTrader: (6)

Defiantly keep the 3.23's, and I would hope you crack 10's with that setup. Hopefully a 3k stall is enough to build boost off the line with the sts.

1badzee

iTrader: (12)

Well according to my bench-racing calculations, you should go faster than an 11.78.

am_muscl

iTrader: (19)

if you don't got faster than 11.78 then you should donate it to me haha

StealthFormula

iTrader: (35)

It doesn't seem to be a fully optimized setup but it should certainly run quicker than an 11.78 with traction.

What's your DD?

Ferg95 T/A

iTrader: (1)

Yes with good rubber and as long as the tranny holds and rear end holds long enough you should be able to do it atleast once

fuzzyjk

iTrader: (4)

DD is a 335xi with JB3, catless Riss Racing downpipes, Riss cat-back, BMS DC intake and Active Autowerke intercooler.

The 11.78 was done on 100 octane race map (not by me, I'm not sure I'm that good).

When you say the setup is not optimal (Z28), how can I make it better? I have already purchased these parts and plan on using all of them however if I need to buy additional or leave out others what would make it optimal?

So which one on a stock rear.....3.23 or 3.73

StealthFormula

iTrader: (35)

The first thing that comes to mind is the cam. The cam you have picked out is not a turbo cam so by running an off-the-shelf N/A cam you will be leaving power on the table. I would definetly grab a custom grind that is spec'd with your turbo in mind. Turbo cams are very different than your typical N/A cam. The Crane 227 is a 210 intake duration/224 exhaust duration cam. Typically with a turbo the cam will have more intake duration than exhaust and in this case it is the complete opposite with a super large split making it less than ideal. Give Lloyd a shout and he will take care of you.

I would stick with the 3.23's for now. I am not sure where the car will be trapping but the 3.73's may put you into 4th before the traps with a typical 26" tire which you don't want. See how the 3.23's work for now and if you find it optimal to add more gear then do so at that time but 3.73's will more than likely be too steep.

marc97taws6

iTrader: (6)

I don't think he is making nearly enough power to justify 3.73's... He should stay in the 2.73/3.23 range where he is at now. The engine needs to be "choked" a little by the gears so the turbo can make the power.

If you don't run 11's... you have a problem. I'm hoping you have this dyno tuned?

And yes, call LE with your current specs and have him custom grind you a turbo cam. He does make them.

Other than that, I would have went with a 3600 stall or more to build boost faster but good temporary. Look into saving money down the road for a built auto and rear-end once you add some good tires to that mix

96lt1m6

iTrader: (31)

A good off the shelf cam for use with a turbo would be the cc305
leave the 3.23s in there for now...wrap those headers and the rest of the exhaust.....

TravisMcGill2000

iTrader: (2)

mayb pick up a rear end out of a 6 sped car. I did and i love the 3.42 gears.

bowtienut

iTrader: (1)

If you don't run low 11's with the parts you listed (drag radials required!), after some tuning/tweaking of course, then you're doing something wrong.
Gears are fine. Cam is fine. Run 1.6 rockers on the intake, 1.5's on the exhaust. You could eventually tweak it into the 10's with those parts if you're serious about it.

fuzzyjk

iTrader: (4)

Thank you for the responses. I will ad to the list drag radials (I was planning on those anyway). Traction will be an issue, but I will just need to re-learn the car once it is back togeather. I would like to shoot for an 11.5. My last "go fast" car was 12.2 and that felt fast. The 335 seems quick but not brutally fast. I want unrefined, scare the hell out of me, speed.