Maxspeedsti

What kind of 17 inch tires are 1000 whp vettes using for the best traction at the track and street ?
Video of my car last week at the track posted below . I was only able to get one pass so i wasnt able to get much testing and tuning done . This was also my first pass on the new setup .

https://www.youtube.com/shared?ci=TdgFid3rVsE

Slo-Poc

I have used the m&h 325/45/17 and it's ok when fresh but now I have the 305/45/17 MT R and it's an improvement but definitely gives up high speed stability if you like high speed fun.

Ant-Man

The street S/S is supposed to have a hardened sidewall but same compound as the R.

I'd warm them up a little more as well, that's a 17x12 correct?

Turbo-Geist

At the track, the discontinued 26x11.50x17 MT ET Street Bias Ply seemed to work well if the prep was good.

A Hoosier 28x10x17 slick also works well.

What tire were you using?

Maxspeedsti

My current tire is a 325/45/17 M&H
Works well when brand new but quickly lose their bite at this power level

Turbo-Geist

In my experience, a high horsepower manual transmission C5/C6 requires a bias ply tire to be successful at the drag strip. It also takes just the right technique with the clutch and throttle during the launch.

Fast forward to the 0:50 mark of this vid to hopefully get an idea of what is going on during the launch. The 60 foot was only a 1.58 on this pass, but it was enough to get the job done. With more practice another tenth could probably be shaved off the sixty. There are vettes going even quicker, but I was still using a stock trans and diff at the time and needed to drive it back home.

Turbo-Geist

Here's one from outside the car. This was a 1.54 short time but I messed up on the 3-4 shift.

ibleedgreen

For me the M&H was a much better street tire in the 17" versus the MT!

sevinn

What's the power level in this video and which slick are you running if you don't mind?

Turbo-Geist

Are you referencing the new 17" ET Street R or the old ET Street drag radial?

Turbo-Geist

This was at 800rwhp and a 26x11.50x17 MT ET Street Bias Ply. The wheel was a 17X10. Best pass was 9.96@145.

sevinn

Thanks. I wish that tire was still in production.

Turbo-Geist

Do you ever make it to SETX? I live near Beaumont and still have those tires. They are a few years old but only used at the track and always stored indoors. You can have them if you want to come and pick them up sometime. I took them off to switch to the 28" slick.

sevinn

Wow that's a really nice offer thank you so much. I'll have to see if I can make some time when I go visit the family in Lake Charles here soon

Turbo-Geist

Here's one more with a 28" tall Hoosier slick. This was after being away from the track for a couple of years and the boost controller turned off.

Turbo-Geist

PM me your number. I could probably even meet you near the border.

ibleedgreen

The R, but I'm referring to street use.

Turbo-Geist

Ok, I'm on the 305/40/18 SS currently and was thinking about switching to the 305/45/17 R for the runway. You think it's worth making the switch?

Ant-Man

Same compound but the SS has a stiffer sidewall, if you were going to get some for the track I'd go slicks.

Turbo-Geist

Thanks. I have 17" slicks for the track and no issues there.

With an 18 inch drag radial on the runway, I can plant 13psi in 3rd and ramp it to 18 psi. Also, 4th seems to hook ok at 18 # of boost from 130mph to 165 mph. I'm looking to add another 200rwhp and trying to determine if the 17" ET Street R would work better than the 18" ET Street SS. They are both 28 inches tall.