C5-Fan

Just finished up my 2000 coup 402 install. Since we are at least 3 months away from tracks opening back up I would like to get some estimates from guys who know. I have had 8 second door cars, 7 second dragsters and 10 second pro street cars but I have no idea what the Vette will do. I built it to be a fun street car and not a race car but I will take it to the track a few times to see what it can do.

specs on the car are:

ls2 block
Manley 4340 crank, h beam rods & Manley pistons
AI CNC 243 heads 232 cc package
Fast 92 intake & ls2 90mm throttle body
11/1 compression
238/242 625 lift cam on 114 ( I had PCM spec it out)
1 7/8 headers
off road x pipe & C5 Z06 cat back
3800 stall Yank converter (I had Yank spec it to the engine combo)
built 4l60 trans
3.15 gears.
It will have some 305/18 M/T drag radials on it when it goes to the track.

PCM of N.C. will be doing the tuning after I get 500 miles on everything and it's broken in. Hoping for around 480 hp & a ton of torque to the wheels thru an automatic.

Thoughts?

scott5

What track you going to? I'm going to put out a 10.80-11.20 at 120-125ish..

A differential brace is always a good thing to have with these cars and if you plan on launching it

C5-Fan

Probably Bristol since it's only 20 minutes away.

scott5

Ah okay, seen where you said PCM of NC and wasn't sure if you were local or not

bjankuski

If you end up with 480 RWHP and can hook it off the line my estimate is 10.40's at 129 MPH.

C5-Fan

if I an break 10.90's I would be happy with it.

Rob Petyo

I'm going to guess it'll be a good 11.30 car because of the gears and not being able to see the 60' you will need for the 10 second pass. Also, I'm not sure the 243 heads will compliment the LS2 bore.

Best of luck!

C5-Fan

The 3.15's aren't the best for good track times but the lose converter should help on the launch. As far as the heads go I don't think they should hamper me by more tan 15 hp over other cathederal port heads. They used a simular head in this test with a combo very close to mine and made 618 hp at the crank.

http://www.hotrod.com/articles/hrdp-1012-ultimate-chevrolet-ls-cylinder-head-test/

pit-man

I'm gonna guess 480rwhp and a 11.0 till a gear change

C5-Fan

11.0 is what I'm thinking unless I can carch a day early in the year with a decent DA. If I could hook it up I may squeak a 10.9?.

bjankuski

My reason for guessing 10.40's at 129 MPH is because I have a 2000 Camaro full race weight of 3800 LBS with driver, 415 RWHP with a mild 6.2, 3.55 gears and a yank 3800 RPM stall. With drag radials it runs 11.20's at 119 MPH. With 65 more RWHP and 400 less LBS it should easily be able to run mid 10's if not faster.

C5-Fan

I like the way you think & will test that theory in the next few months.

bjankuski

FYI, 11.20's is really good weather, on a hot 99 degree day I have run as slow as 11.80's.

C5-Fan

1st pull results are in, blew the oil filter seal out at 5400 rpm so it only got to 462 rwhp at 5400 rpm but the 500 ft lbs of torque tell me once it gets to 6000+rpm we should be around 500 rwhp.

UHP tires + 37 degree Temps + 500 ft lbs of torque do amp up the pucker factor at anything past 1/4 throttle.

C5-Fan

Finally got it tuned st PCM & installed an RPM 3.42 diff. And got decent results. I'm in the left lane.

pit-man

nice...I was real close with 11.0 guess.

What was rwhp..I said 480 ?

Boredom

Stock 3.15 gears with a yank ss4000 converter.. cam only car.. don't let anyone tell you gears are the issue. Our times are close and I have a stock weight ls1 with stock 853 heads.

C5-Fan

482 to the wheels

C5-Fan

Getting ready for the 11.00 Heads up Pro Tree race at Bristol tonight. Let's hope my poor mans drag pack keeps working.

C5 Pete

How did the race go?