Intercooler2

iTrader: (24)

Just curious what you guys with 450+ RWHP are getting for track ET's/MPH and what weight with you in the car?

ls1curt

iTrader: (31)

when i was a 6-speed, i put 460whp and ran a 11.3@125 at 3420 raceweight

badblazeSS

iTrader: (6)

6 speed, 450whp, 7.58@93mph with a 3900 raceweight

badblazeSS

iTrader: (6)

what did you run with your auto swap?

ls1curt

iTrader: (31)

no times yet

SS MPSTR

iTrader: (1)

How is your car ~400 pounds heavier than most other 4th gen race weights?

Intercooler2

iTrader: (24)

Mine is 3820 with me in it

badblazeSS

iTrader: (6)

9in, iron block, fatass mod, full weight with the spare tire

silverz28camaro

iTrader: (20)

At 451 rwhp I run a 10.54 @ 127, 3258lbs.

4l60e with a vig 3600 stall, 255 tires, 3.73 gears

Intercooler2

iTrader: (24)

Wow! How much car left at that weight? I took out all the extras like seats and stuff once which put it in the mid 3600's. I couldn't see removing wiper arms, console, A/C or ABS.

silverz28camaro

iTrader: (20)

I still have all factory seats,center counsole, wipers, stock rims , heat, radio, 12 bolt, ....

A stock Camaro is only 3400, it wasn't hard saving 200lbs, spare tire, bmr k-member, aluminum ds, converter, headers, sway bar and abs delte to name a few. it all adds up.

I don't see how you are 3600, my buddy has a formula and he is down to 3100 with full interior still.

Intercooler2

iTrader: (24)

I have weighed it twice now on certified scales. Maybe it is a Trans Am thing but where are you guys weighing and do you get a print-out? Most all the TA guys I know are sporting 3600+ weights. If I could just get to 3500 with me sitting in it my sled would scoot!

vetteboy2k

iTrader: (5)

We have cars that ran mid 10's years ago with around 450rwhp stock weight for c5/C5Z corvettes with manual and 6 speeds.

B18B1LS1

iTrader: (12)

At 454rwhp my stock stalled A4 SS ran 11.3 @ 122 and 3550 raceweight.

N2RACINGLS1's

iTrader: (2)

Well I do not have 450 HP but my Formula weighs in at 3,300 lbs. with me in it now. I have been working on getting it lighter for the last 4 years! It has been a lot of work since my Formula has a TH400, 9-inch rear, full cage and a lot of other suspension parts. In fact everything I have taken off the car was lighter then what I put back on it. My car is 400 HP at the wheels and has run a best NA of 10.47 ET at 127.19 MPH at the 3,300 lb. race weight with the H/C/I 346 engine in it!

I have no doubt your Trans Am is that heavy! Our stock 02 WS6 Trans Am with me in it weighed in at 3,665 lbs. that weight included sub-frame connectors, drive shaft safety loop minus spare tire and jack! It is a 6 speed with a 10 bolt rear so with yours being an auto and the fact you have a 9 inch rear you car has to be heavier. So since your car is that heavy with 450 HP it is going to be hard to break into the 10’s. I know you are close and maybe the changes you just made will do it! It is my opinion you will have to get weight out of your car or add more horsepower to reach your goals.

Best of luck and be safe!!!

I think you are comparing apples to oranges. A C5 Corvette if memory serves me right is just above 3,000 lbs. without driver so with 450 HP it will have no problem running mid 10’s no matter what year you are taking it to the track!

N2

shackattack37

iTrader: (4)

i made 479rwh 433rwt locked and 3900lbs i went 11.08 122.7mph in good da-600

vetteboy2k

iTrader: (5)

Just participating in the thread.

vetteboy2k

iTrader: (5)

You mentioned "no problem" so I assume you have experience with drag racing a vette?

Is it possible that a corvette may have many limiting factors?

Year was mentioned because the technology changes annually. 5 years ago there was alot less "go fast" parts available.

vetteboy2k

iTrader: (5)

Seems like apples to apples to me.

corvettes referred to.

346 h/c/i
3300 lbs 6 speed/ 3500lbs auto
1.4x 60's
mid 10's- medium effort builds
130+ mph-6 speed / 129mph auto
stock suspension
stock trans
IRS suspension
limited gears and tires

not much different than what you posted, less work done and much more fragile for drag racing.

N2RACINGLS1's

iTrader: (2)

In reading your post it appeared to me you were basically saying that what the OP is trying to do you did years ago! In you first post you actually gave him no help what so ever considering a C5Z weighs nowhere close to his car! Help me out I thought a manual transmission was a 6 speed?

Yes actually I do have some involvement with a 2000 C5 Corvette that was running 10.60’s six years ago NA at just a little over 390 Horsepower to the rear wheels with a 346 CI H/C, 4 speed auto and 3.73 gears to present day running 9.50’s at over 143 MPH’s NA with a 427 CI, 4 speed auto and 3.42 gears!

A Corvette does not have limiting factors when it is running mid 10’s suspension wise. The stock transmissions may have limiting factors but everything else seems to do OK. Now when you start getting over 500 HP to the rear wheels you have a different story!

There were plenty of go fast goodies 5 years. I will agree with you there are even more go fast goodies now. I will add there are several people going fast today with old parts!

I think I touched a nerve! Please explain how a C5Z barely tipping the scales above 3,000 lbs. compares to his 3,800 lb Trans AM?

So in one post you say there are limiting factors with the Corvettes than in your next post you say it takes no additional parts other than stock to run mid 10’s in the subject Corvettes except engine modifications.

You mentioned the above subject Corvette results are not much different then what I am doing but I am doing it with old parts and 50 horsepower less than your Corvette above. You all must be big guys or running with a passenger down the track. I have never heard of a C5Z weighing the numbers you listed in your post. I know of one C5 auto with CCW’s, passenger seat removed, added 4 pt. roll bar with a 220 lb. driver seating in it that registered just a little over 3,200 lbs. on the scales at the track.

Regardless 450 horsepower is 450 horsepower whether you have 5 year old parts or brand new parts. As I stated in my first post comparing a C5Z Corvette to a fully loaded Trans Am with an added 9 inch rear is comparing apples to oranges!

Intercooler2 sorry for high jacking your thread!! Good luck on your next outing!

N2