Need help regarding tires--->
Thread Starter
Joined: Nov 2001
Posts: 7,303
Likes: 4
From: Delray Beach, Fl.
Need help regarding tires---> Should I run my car with26X10X15 MT SLICK
OR should I run with a 27X11.5X15 QTP
Do u guys think the 4.10's and the short tire will casue me to not hook?I figure I'll be giving up alittle hook for the better rollout of the QTP?
26 VS 27???
And if I do keep the 26in Slick do u think I'll cross below 6800 on the it and 4.10 combo?
JS
OR should I run with a 27X11.5X15 QTP
Do u guys think the 4.10's and the short tire will casue me to not hook?I figure I'll be giving up alittle hook for the better rollout of the QTP?
26 VS 27???
And if I do keep the 26in Slick do u think I'll cross below 6800 on the it and 4.10 combo?
JS
Re: Need help regarding tires---> With your power I think you will have trouble hooking w/ 26"ers and 4.10's, but I wouldn't do QTP's either. I would do 28x9x15 ET drags, they are only 27.3" tall.
Shifting at 6800, the 26"ers will have you going through the traps between 6400-6600. The 28x9's are going to cut you down to somewhere in between 6100-6300, but you should 60' much better or at least more consistently. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
BTW, my rpm guesstimates do not take converter slippage into consideration.
later, <img border="0" alt="[guns]" title="" src="graemlins/gr_guns.gif" />
Steve
Shifting at 6800, the 26"ers will have you going through the traps between 6400-6600. The 28x9's are going to cut you down to somewhere in between 6100-6300, but you should 60' much better or at least more consistently. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
BTW, my rpm guesstimates do not take converter slippage into consideration.
later, <img border="0" alt="[guns]" title="" src="graemlins/gr_guns.gif" />
Steve
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Thread Starter
Joined: Nov 2001
Posts: 7,303
Likes: 4
From: Delray Beach, Fl.
Re: Need help regarding tires---> Can I fit a 28X9 under my car without it hitting
the sides of my 1/4 panels?
I saw the pic of Fireballs car and the tire is millimeters away from the lip.Under tire growth I'd be scared it might rub?
Will the 28X9 fit?
JS
the sides of my 1/4 panels?
I saw the pic of Fireballs car and the tire is millimeters away from the lip.Under tire growth I'd be scared it might rub?
Will the 28X9 fit?
JS
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Thread Starter
Joined: Nov 2001
Posts: 7,303
Likes: 4
From: Delray Beach, Fl.
Re: Need help regarding tires---> John remeber I have the lower body piece that only comes on a T/A.Will the 9X28 hit this and what about trapping 120+ on a 9in contact patch?
George/Steve whatta ya think too?
JS
George/Steve whatta ya think too?
JS
TECH Senior Member
Joined: Nov 2001
Posts: 10,341
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Re: Need help regarding tires---> guys trap 170mph on 9 inch contact patch <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
I think you'll be fine <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> Just dont go under 11psi in them IMO
Chris
I think you'll be fine <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> Just dont go under 11psi in them IMO
Chris
Re: Need help regarding tires---> I recall having an abundance of room.
I trapped 121mph no problem.
I had some sway at the big end, tires were at 11-12 psi which felt a bit low.
I trapped 121mph no problem.
I had some sway at the big end, tires were at 11-12 psi which felt a bit low.
Joined: Nov 2001
Posts: 8,484
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From: Cecil County Raceway!!!
Re: Need help regarding tires---> JS, mine are no where close to rubbing, but they were DAMN close before I shortened my LCAs. the wheels weren't centered in the wells (every pontiac I've seen was like this) so I shortened the LCA 1/2" to bring it in dead center <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
my vote, 28x9 slick <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
I'm going with Hoosier 28x10x15s <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
my vote, 28x9 slick <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
I'm going with Hoosier 28x10x15s <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Thread Starter
Joined: Nov 2001
Posts: 7,303
Likes: 4
From: Delray Beach, Fl.
Re: Need help regarding tires---> Chris a 9in tire going 170 is rediculous.Most NSCA cars run a W tire of somekind.No one runs a 9in slick trapping 170MPH.
George the T/A needs alot more work to fit a 28X10 since it has a body panel at the edge of the low 1/4 panel.
Fireball I agree I can buy adj. comtrol arms and center the wheel.Not a bad idea but I'm concerned about geometry.
I think 28x9 is the way to go.
JS
George the T/A needs alot more work to fit a 28X10 since it has a body panel at the edge of the low 1/4 panel.
Fireball I agree I can buy adj. comtrol arms and center the wheel.Not a bad idea but I'm concerned about geometry.
I think 28x9 is the way to go.
JS
TECH Junkie
Joined: Nov 2001
Posts: 3,987
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From: Melbourne, FL
Re: Need help regarding tires---> Personally, I wouldn't trade my 28x10.5's for anything (well, maybe a 30" tire). The 28x10.5 measures a true 28" height, as opposed to the 28x9's measured height of just over 27".
However, a lot of folks aren't interested or willing to do the clearancing to run a taller tire. I'm about to do some trimming to my bumper cover and see if I can fit something a little bigger than I have now...
However, a lot of folks aren't interested or willing to do the clearancing to run a taller tire. I'm about to do some trimming to my bumper cover and see if I can fit something a little bigger than I have now...
Joined: Nov 2001
Posts: 8,484
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From: Cecil County Raceway!!!
Re: Need help regarding tires---> Ironically I am hooking a bit better after shortening my LCAs. but I don't know the exact implications of shortening them. Biggest concerns:
1) Pinion angle
2) driveshaft length
I don't think shock angles change too drastically since they are fairly long
1) Pinion angle
2) driveshaft length
I don't think shock angles change too drastically since they are fairly long
Re: Need help regarding tires---> Joel -
You can also pull that rear bumper cover back, but drilling a small hole in it, and using wire to pull it back, follow me? My buddy did it to clear the 28x11.5x15 ET Streets on his 99WS6.
Ask him @ chasgiv3@interaccess.com
You can also pull that rear bumper cover back, but drilling a small hole in it, and using wire to pull it back, follow me? My buddy did it to clear the 28x11.5x15 ET Streets on his 99WS6.
Ask him @ chasgiv3@interaccess.com