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-   -   What size slicks? (https://www.racingjunk.com/forums/showthread.php?t=24188)

ssym 05-09-2009 10:57 AM

What size slicks?
 
I have a '66 Chevy II, tubbed in the rear with a 4-link. 3200 Pounds.

Blown SBC, 630 HP, 605 TQ, TH-400

I have a set of 15" x 15" rims. Plenty of room to run 33"x16"s.

Question is, How wide is wide enough? Should I run 14's, 14.5's, 15's? I see people hooking with 10.5's with much more power. I would like to save money and use the rims I have, but how much is overboard?

Is height any more a question than roll out and gear ratio?

I assume D-5 compound or equivelent.

Thanks again. Should have track pics within a month. Long time comin!

Steve

us7race 05-09-2009 05:35 PM

a 32x14 should do you just fine. What rear gear?

ssym 05-10-2009 08:42 AM

3.50's right now. Waiting to see the first 1/4 mile results before I change them.

Steve

dparker 05-10-2009 01:18 PM

Re: What size slicks?
 

Originally Posted by ssym
I have a '66 Chevy II, tubbed in the rear with a 4-link. 3200 Pounds.

Blown SBC, 630 HP, 605 TQ, TH-400

I have a set of 15" x 15" rims. Plenty of room to run 33"x16"s.

Question is, How wide is wide enough? Should I run 14's, 14.5's, 15's? I see people hooking with 10.5's with much more power. I would like to save money and use the rims I have, but how much is overboard?

Is height any more a question than roll out and gear ratio?

I assume D-5 compound or equivelent.

Thanks again. Should have track pics within a month. Long time comin!

Steve


14x32's would work, but you mentioned that you wanted to run 15x15 rims. So your probably going to have to run a 16x33. Your tire needs to be an inch wider than your rim width.

ssym 05-11-2009 02:17 AM

Any thoughts on the Hoosier Quick TIme Pro DOT tires? They make the same size as my street tires(31-18-15), just curious if they will hook on the track.

oldandtired 05-11-2009 05:30 AM


Originally Posted by ssym
3.50's right now. Waiting to see the first 1/4 mile results before I change them.

Steve

3.50's ??? Not a good starting point with a 33 tire. Just my opinion. Dave

blowninjected540 05-11-2009 05:41 AM


Originally Posted by oldandtired

Originally Posted by ssym
3.50's right now. Waiting to see the first 1/4 mile results before I change them.

Steve

3.50's ??? Not a good starting point with a 33 tire. Just my opinion. Dave

x2 456 or even 488 would be my guess with a 33 inch tall tire

johnracer 05-11-2009 05:43 AM


Originally Posted by oldandtired

Originally Posted by ssym
3.50's right now. Waiting to see the first 1/4 mile results before I change them.

Steve

3.50's ??? Not a good starting point with a 33 tire. Just my opinion. Dave

Agreed. 3.50's are a waste of time. At 3200 lbs, you'll need a 5.13 or better with a 33" tire........my Vette with a 575-600hp sbc @2050lbs and a 4.88 gear turned about 7000 rpm at the stripe and 7700 on nitrous with a 33x16

dparker 05-11-2009 06:32 AM


Originally Posted by ssym
Any thoughts on the Hoosier Quick TIme Pro DOT tires? They make the same size as my street tires(31-18-15), just curious if they will hook on the track.

They will not hook like a set of slicks. Unless I was running a class that demanded DOT tires, I would run slicks at the track.

ssym 05-11-2009 10:56 AM

Thanks guys. I had 4:86's with a spool and put the 3:50's with a locker in for the street. Now I miss the track and plan on building a second third member with the spool and I don't know what gears. I redline at 6300 rpm and thought 4:86 might be a little steep for the 1/4 mile.

Still not decided on what size slicks to run...

I'll have money next week for them and the track soon after!

Steve


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