Track Times: My Best Ever

[Pete]

Originally Posted by Locobob

My math shows 129mph at 7500rpms with 3.45's and 25.7in tires - I'd say thats just about perfect for the quarter mile assuming your powerband looks a lot like mine. If you're gonna try gears I'd go with at least 4.10's otherwise you'll end the quarter part way through 4th and the extra gearing may not compensate for the time it takes for the extra shift. Your results are making me seriously think about doing a cam swap - stop it already

I was running 26.2" tall tire.
Bob,yes your right 4.10 is perfect for 1/4.

My peak comes in just shy of 6800 474rwhp, 5200 400rwtq

The cams are worth 20 RWHP.

Cam specs
.236 .425 In
.220 .425 Ex
Some cam sound at idle,drives like a stocker,throttle response furgataboutit.

Pete

[jonszr1]

pete, talked with my suspension guy he seems to think that you can use 4.10 gear if you go to a 27in tall tire if you stay with the tire you have now your wheel speed ie tq multiplication will blow the tires off ruining your 60fts . i shared your dyno results with him . he also thinks that you might find that shifting at 7200 would help. the reason he thought3.92 would work is the fact that you are using the 315-335x35x 17 tire. he was worring about your wheel speed off the line . just food for thought

[Jagdpanzer]

Originally Posted by Pete

Those skinny a-molds would get a lot of attention/compliments.
Can you send me some pictures of the wheels with the Hoosiers on them.

Pete

Hey Pete,
It was absolutely gorgeous outside today here in northern Virginia so I rolled the Z out and took a few pics of it with the narrowed A-moulds and Hoosiers mounted up:

[flyin ryan]

you must notice the steering being a little lighter when going slow, huh. run 11.99 E.T. or quicker & you have to have steel valve stems, BTW. i'll tell ya' why if anyone is interested

[Aurora40]

They look good until you turn the wheel out. Those skinny tires just look wrong on a 'vette! Pretty neat for a skinny though.

[Jagdpanzer]

Originally Posted by flyin ryan

you must notice the steering being a little lighter when going slow, huh.

Yes they turn a lot easier at slow speed the regular size Michelin Pilots and GY D3 fronts I have and they handle surprisingly well at higher straight line speeds to. However, I don't expect I'll be doing any frisky cornering with them tough.

Originally Posted by flyin ryan

run 11.99 E.T. or quicker & you have to have steel valve stems, BTW. i'll tell ya' why if anyone is interested

Nothing would please me more to have to change to steel valve stems

Originally Posted by Aurora40

They look good until you turn the wheel out. Those skinny tires just look wrong on a 'vette! Pretty neat for a skinny though.

Bob,
I feel the same way but fortunately you're not suppose the do much turning in drag racing.

[Pete]

I'm suprised the tread depth on those Hoosiers, they look like you can drive around town with those.
Probably makes the rears look wider.

I had the spare donuts on them and ran at the track twice 125MPH runs trust me i was worried but they suprised me,stoped with no issues.

I'm sure the Hoosiers are better then the spare donuts that i used.

Side profile looks stock.
They look awesome.
Pete

[8upZR1]

FR,
So why do you need steel stems faster then 11.99?