v8vette84

I went to the track this last friday and I got some new numbers for the Corvette. I ran a 12.4@113.5. That's with 245(which are too small) and the original 3.07 gears. I'll bet with some wider tires and some 3.73's or 4.11 's she could break the 11's. I'm happy with the times, not too bad for a car with shitty gears.(I'm hitting 4th gear probably 50 feet from the line) haha Bogs bad off the line, I just need to fix that now and we'll be good! I was cutting 2.0 60's all day, got a 1.9 60' on my best run. Best MPH was 115. Mods are below.

LTx swap, "LE1.5" heads(Bought off a member at CamaroZ28, they supposedly flow in between LE1 and LE2 heads.), LE Custom Cam, LT's, 52mm TB, 30lb Injectors, MadZ28 Tune, T-56 swap, 3,07 POSI.

What do you guys think? Last year I ran a 12.9@111MPH with the stock headed, cc503, stock TB, mild bolt ons setup.

v8vette84

Here's a vid of the run. When I dropped the clutch the car started off quickly then the tires spun a little then she took off.
Don't forget to watch in 1080p!! haha

http://www.youtube.com/watch?v=FsDKmxFKqkk

NewOrleansLT1

Get some drag radials and 4.10 gears and you MIGHT just be able to crack those 11's

A20SVT00

iTrader: (13)

congrats. nice times

96lt1m6

iTrader: (31)

I see no problem with 245/50/16s in a DR.....especially in a Vette
The addition of 4.10s would make a big difference, in the 5-7 tenths range... That cam is 100% capable of achieving SOLID 11 sec 1/4 mile times especially in a Vette.. great job..... What cold air do you have on there? I ask because a nice filter set up can be fabricated behind the license plate

Mystery Bird

iTrader: (7)

Nice job!

transbird95

iTrader: (4)

Looks like fun, lil more work and you should be there!

SS RRR

iTrader: (2)

There will be a night and day difference if you change out to a steeper gear.

lt1-xjs

Sounds like you're short shifting to me, leaving lots on the table. With your old 503 cam 12.0x's is the norm for that cam only. I would try 64-6500 shifts and see what happens.

WS Sick

Oh yes , get some gears !!!!

slomarao

iTrader: (6)

x2....

shift at 6400 rpm, get a 4.10 or 3.89/3.91 and you will be one happy guy your next trip to the track....

you may need a better tire too once you put in the gears.

TravisMcGill2000

iTrader: (2)

Great times. If you get that 60ft down you will be in 11s with ease.

trilkb

iTrader: (4)

nice times, id take em.

do you have a 91-96 rear bumper/tail lights?

v8vette84

The car doesn't seem to like to run out much past 6k. If I run her farther she seems to die off... Not sure why though.. The cam makes power to 6500 or something Lloyd told me. Any idea why I'm loosing power early? I have a full 3" exhaust, full length headers, magnaflow 3" mufflers, X pipe. Could it be the intake or heads?

I got this with the heads.

All Flow #'s are at 28" H2O on the same flow bench, operated by the same person.
-- Flow: --
Lift: Int/Exh:
.200 = 134/104
.300 = 190/144
.400 = 235/172
.500 = 257/191
.550 = 265/195
.600 = 265/200

v8vette84

It's got a crappy air intake, It's using basically a flipped upside down B-body elbow with a hockey puck and then it runs right to the MAF then right to the filter. Filter is stuck in the engine bay sucking hot air b/c there is no place to run tubing. I have a tube connected to the end of the filter running around the radiator down in front of it to catch air once the car gets moving. The 84' C4's have air ducting in the hood which makes it impossible to go over the radiator to do a CAI. The 85+ C4's had this area in the hood open for the tubing. kinda sucks..

v8vette84

No its the old 84-90 style. I do want to change over though.

lt1-xjs

You bought the heads used, how old are the springs ? It may be time for a new set.

v8vette84

I changed the springs to the beehive style I had on when I had the cc503. Had about 3k on them I think.

F0x Slaughter

What cam are you running?

The exhaust is fine, what filter are you running?

The stock TB and Manifold will flow enough air for your setup easy.

v8vette84

LE cam 232/240 .578/.574 110 LSA w/ 1.6rr's. I'm running a spectre filter.