Chris222

I have a 92 RS, interior is gutted, my motor is a 79 4bolt main, .030 over, line bored and blue printed, the internals are, Scat 3.75 forged crank, Scat 6inch rods with 7/16 cap screws, pustons are forged flat tops, 12/1 compression, all internally balanced, hi volume pump, 6 quart pan, cam is a Lunati 245/255 @.50, solid flat tappet lift is 540 intake 560 exhaust, heads are World Products Sportsman 200cc, light porting, with 600 lift springs 1.50 roller rockers, Edelbrock Victor Jr intake, Holley 750 carb, mechanical secondary, transmission is Th-350 with turbo action manual valve body, converter is a Ultra Comp 10 inch around 4800-5500 stall, rear is a Moser 9 inch with 411 gear and a full spool, tires are 29x10 Goodyears, also have Jegs tubular torque arm, next weekend im taking this car to local dragstrip, which is an 1/8 mile, ive raced before, but this car is fresh and getting mixed results from other racers about te ET, anywhere from 6.80 to 7.40, but this site is only 3Rd gen people, so who can give me a good estimate, i will post my times next week, then I will know whose the drag racers here!!! Shifting round 6,000 rpm

Dialed_In

iTrader: (3)

The parts are there to go 6.80's if it's put together and tuned well.

1gary

Have you looked at this yet??:

http://www.wallaceracing.com/Calculators.htm

Dialed_In

iTrader: (3)

Those ET calculators assume he knows HP. He'd also need to weigh the car. "Gutted interior" isn't enough info to derive an accurate weight. There's simply not enough info to estimate ET from the info given which is why I said "if it's put together and tuned well".

1gary

Sorry-I didn't make my point clearer.Thought when he saw the calculators he would realize what he needed for info.

DIGGLER

iTrader: (1)

7.20-7.40ish would be my guess.

90camaro355rs

I don't think that's enough gear to go 6.80, I would say more like 7.30 with that said, I hope you do go 6.80 that would be cool, good luck

Dialed_In

iTrader: (3)

Plenty of gear. My car has been a best of 6.76 with a 3.73. Averages around 6.80 in the heat. My setup is also milder than the OP's (less compression, smaller carb, smaller cam, dual plane intake, 3500 stall, etc.)

Chris222

Those calculators are guestaments, this car ran 7.60 on 7 cylinders, lifter chewed in half, and a 355 motorwith stock rods and crank, im hoping a 6.90 is my number, consistency is everything in bracket racing, if it runs 7.01 all day then im happy, ive turned this motor to 8500 on the stands, bottom end was assembled by local speed shop, everything is within tolerence, really wanting a 4.56 or 4.88 gear, more upgrades coming in time, I will post ET`s next week, race on Sunday,

DIGGLER

iTrader: (1)

more details? cam/heads/etc?

Dialed_In

iTrader: (3)

10.8:1 383, 5.7" rods, ported AFR 195's, 2.055/1.960", 236/242*, 1 5/8" longtubes, mufflers, Hughes 3500ST converter, 3.73 rear, 28" tall radial. Car is 3350 with driver.

DIGGLER

iTrader: (1)

your heads probably flow 60cfm more than his sportsmans. lol

thats a good running combo.

Dialed_In

iTrader: (3)

Thanks. It runs pretty much dead on what it should for power and weight. It made a tick over 500 on our engine dyno. It's all about the combo. It's always funny when some random guy offers his advice which is typically for a Victor intake or bigger carb, etc. Usually comes from someone with a similar setup, is slower and can't figure out why their junk runs 12's.

DIGGLER

iTrader: (1)

buddy of mine ran nmra pure street for several years. when he was running they had to have a dual plane intake. with a manual trans, it left the line around 75-7600 rpms. 310" sbf.