Please keep in mind that this is my first time ever at a 1/4 mile track, and the second time ever (previous week being first) time racing.

It was in 90 + degree weather, but the engine stayed relatively cool, under 200 degrees if I remember properly. I should have written these things down.

Here are my best results.

60 ft.--------2.111 (2.018 best)
? ft.---------5.947 (5.878 best)
1/8----------8.649
MPH---------83.330 (84.826 best)
1/4----------13.348
MPH---------104.953

I have to hit 4th gear, I tried finishing in 3rd once, but it was hitting the rev limiter I had set at 6000 RPM. I have had it up to 6300 RPM before. Should I raise my rev limiter to 6400, so I can top out in 3rd?

Do these numbers relate well to each other? I for the life of me can't get under a 2.0 second 60 ft. on street tires. If I managed a 1.80 second 60 ft. (as some people can attain), what would it drop the 1/4 to on a street tire?

My next time going, I will strap on my BFG 275/40/17 Drag Radials. I just wanted a good base time of my engine on street tires. Once I get a good base time of engine on Drag Radials, I will then try engine + 150 nitrous spray and Drag Radials.

Can anyone figure out what my time (with those weather conditions) would be if I managed a 1.80 60 ft.? I'm assuming that since the 60 ft. would be better, the trap speeds and ET's would change for the better.

******EDIT*****
By the way, I was the only Corvette at Luskville Dragway in Quebec that day. But, that didn't stop me from taking home the trophy. I was jacked, second time ever racing, and first trophy. I am currently the LUSVILLE DRAGWAY STREET CLASS WINNER 2003!! After I won, I had 2 people come up to me and asked me to race straight up. One was a motorbike, which I embarassed the hell out of ( not a crotch rocket bike ) and another one was a Cavalier Z24 which had slicks on the front and a 3.8 Liter supercharged GTP engine, whic hI beat. By the way, that Z24 ran a 13.489!





[Modified by black_89_vette, 1:34 PM 7/12/2003]

 

i want to think the rule is for every 1/10th on the 60' you will gain 1mph and 2/10ths at the end. :cheers:

 

So, if it's 1 mph and 2 tenths , that would yield a ..

60 ft.---1.811
1/4-----12.748
MPH----107.953

if I drop my 60 from 2.111 to 1.811 (3 tenths)?

***EDIT***
If that's true, does anyone ( who can cut a 1.811 60 ft. on street tires) want to pilot my car down the track for me. :lol:


[Modified by black_89_vette, 1:40 PM 7/12/2003]

 

You will drop your ET with a better 60' however I wouldn't bank on gaining 3 MPH in trap speed. Typically even if I spin off the line I will still have a very close MPH vs a pass with a good hook.

With your current 104.9 mph, it would be good (mathimatically) for a 12.8x -13.0x ET with a good 60' hook.

It will be interesting to hear your results with the drag radials & the shot of juice.

:cheers:

 

I didn't go to the track this weekend, I had to take a weekend off, lol. I went last weekend, and the weekend before. Now, as for next weekend...I'll see if I can get my mechanics to throw the drag radials on, and maybe fill the nitrous bottle this week.

I run BFG G Force TA KDW's right now, and they were a **** to put on the rims. I really need a second set of rims to permanently mount the DR's so I won't have to keep pulling rubber.

 

You dont want to shift to 4th, thats hurting your ET. I dont think youll hurt anything by raising the limiter just a bit, but i dont have all the details on the motor.

You have to practice your launch technique, thats the only way to drop the 60', but it can be done. IMO, if you can get under 2.0 on street tires youre doing pretty good. It'll take lots of practicing to get it down to 1.8x

What cam are you running? Is the car tuned? A SR 383 should be in the 12s on streets with even that bad 60', that kinda worries me.

No excuse for a 383 on slicks to not be a 11sec car, for future reference.

 

What air pressure did you use on the rear tire's??????????????????
thanks
tony
:smash:

 

Cool, I'll raise the limiter to 6400 then. I'm just having to shift it into 4th for that last little bit, but I'll ride it out in 3rd with the higher rev limiter then.

I launch off idle, a bit too much RPMs means spinning a lot, I almost have to bog it, but I notice that when the concrete ends and the asphalt begins, I can hear the tires spinning onto the asphalt. ( I had the runs videotaped, and gotta get them on computer some how).

With the DR's, could I launch it close to 3000 RPM , or will it go up in smoke just like the street tires?

The cam I am running is pretty mild. Too mild for my liking, but the mechanic chose it and I don't have the cash right now to do a cam swap.

It's a Comp Cam 222/226 , 0.464/0.464 , 114 hydraulic lift cam, stock rr (1.5?) I wish it was like a 0.525 lift or so.

I had the car tuned (chip) at Agostino Racing in Pickering by a guy, but we didn't do full dyno runs due to the car detonating. I have since replaced knock sensor and did wires ( Taylor Spiro Pro 8 mm). He had the A/F ratio near 12.0-12.5 at WOT, and like 14.5-14.7 at idle or something real close to that. He ran it rich due to nitrous, which I didn't get to dyno --->detonation issues.

My mechanic is old school, and not a TPI tuner. I really wish I had the availability of a tuner near by to get everything out of my car.

 

Currently, I'm running the same air pressure in the tires at the track as I do on the street. Geez, I forget what that is, about 35-40?

I know I should have dropped the pressure down to like 20 psi or so, but I didnt' have any way to raise the pressure back up for the 1.5 hour trip home.