Backspacing for front tires?

Shaun03GT · August 2nd, 2011, 11:32 PM

Im really wanting to get a nice full set of drag wheels for the car. I was looking at those Jegs Sports star wheels, and I really like them. I was going to run the 15x8s out back, then 15x4 in front.

Unless would the 15x10's work? Or would I have to roll the fenders? Not sure if any of these would work?

http://www.jegs.com/webapp/wcs/store...Search&Dx=mode matchallpartial&storeId=10001&Ntx=mode matchallpartial&N=4294964870+4294901975+3019100&re direct=false

Also, I want to get the front tires, how much backspacing do I need up front? Stock brakes. They have ones with 1.75" of backspacing thats it. The other has different bolt pattern.

One last question, depending on if those 15x10's work without rolling the fenders, what size Hoosier QTP could I run? Or for the 15x8s? Thanks guys, reps!

Shaun03GT · August 2nd, 2011, 11:37 PM

The link isnt working right, I dont know why. But theres a few different 15x10's. Just dont know how much backspacing I would need for those, without rolling the fenders. And what the biggest size tire is.

Shaun03GT · August 3rd, 2011, 03:45 PM

Bump! Comeon, I know someone knows.

andrewskaggs · August 3rd, 2011, 04:08 PM

15x10s will work no problem without rolling fenders. The tire size has more to do with fender clearance than the wheel size anyway.

1.75" on the front will work, but you'll have to either grind a little bit off of the caliper bracket (not the caliper itself) or run a spacer. A spacer will require longer studs and really...it's only about 5 minutes worth of grinding and it doesn't affect your braking or safety at all, so I would just grind them down a bit.

You could run a 26x11.5x15 on either wheel (which has a 10" tread width). You could also step up to a 28x11.5x15, like F8L but that would require some work on the fenders.

Shaun03GT · August 3rd, 2011, 06:12 PM

Cool thanks man! Repped. I may go back to 4.10s, so that will play apart in what size tires I get, 26" or 28".

So these tires

Hoosier 17421QTP Hoosier Quick Time Pro D.O.T. Drag Tires

On these wheels

JEGS Performance Products 67088 JEGS Sport Star Cast Aluminum Wheels

Will work fine? I Have longer studs in the back.

As for the front, Ill just grind the caliper bracket down some, rather then getting spacers. Ill get these for the front:

JEGS Performance Products 67051 JEGS Sport Star Cast Aluminum Wheels

Everything look good?

andrewskaggs · August 4th, 2011, 11:55 AM

Yep. That should be fine. If you have longer studs in the back, you'll probably have to use open ended lug nuts.

Just remember that if you go with a 28" tire, you're going to need to do some work on the fenders.

Shaun03GT · August 4th, 2011, 07:49 PM

Okay thanks for letting me know man, much appreciated. Ill probably just stick with the 3.73s and 26" tire. But I may go to 4.10s.

Thanks again man

August 2nd, 2011, 11:32 PM	#1
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 7.92 @ 91.13mph 1/4 - 12.21 @ 115.84mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 13,456 iTrader: 12 reviews	Backspacing for front tires? Im really wanting to get a nice full set of drag wheels for the car. I was looking at those Jegs Sports star wheels, and I really like them. I was going to run the 15x8s out back, then 15x4 in front. Unless would the 15x10's work? Or would I have to roll the fenders? Not sure if any of these would work? http://www.jegs.com/webapp/wcs/store...Search&Dx=mode matchallpartial&storeId=10001&Ntx=mode matchallpartial&N=4294964870+4294901975+3019100&re direct=false Also, I want to get the front tires, how much backspacing do I need up front? Stock brakes. They have ones with 1.75" of backspacing thats it. The other has different bolt pattern. One last question, depending on if those 15x10's work without rolling the fenders, what size Hoosier QTP could I run? Or for the 15x8s? Thanks guys, reps! __________________ Vortech V1 Intercooled @ 11psi 394rwhp/392rwtq @ 9.5psi 415rwhp/400rwtq @ 11psi on Methanol Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

August 2nd, 2011, 11:37 PM	#2
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 7.92 @ 91.13mph 1/4 - 12.21 @ 115.84mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 13,456 iTrader: 12 reviews	The link isnt working right, I dont know why. But theres a few different 15x10's. Just dont know how much backspacing I would need for those, without rolling the fenders. And what the biggest size tire is. __________________ Vortech V1 Intercooled @ 11psi 394rwhp/392rwtq @ 9.5psi 415rwhp/400rwtq @ 11psi on Methanol Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

August 3rd, 2011, 03:45 PM	#3
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 7.92 @ 91.13mph 1/4 - 12.21 @ 115.84mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 13,456 iTrader: 12 reviews	Bump! Comeon, I know someone knows. __________________ Vortech V1 Intercooled @ 11psi 394rwhp/392rwtq @ 9.5psi 415rwhp/400rwtq @ 11psi on Methanol Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

August 3rd, 2011, 04:08 PM	#4
andrewskaggs Hardcore Enthusiast 2003 Mustang GT 8.26@83.06 (1/8) Join Date: Apr 2010 Location: Henderson, TN Posts: 1,104 iTrader: 4 reviews	15x10s will work no problem without rolling fenders. The tire size has more to do with fender clearance than the wheel size anyway. 1.75" on the front will work, but you'll have to either grind a little bit off of the caliper bracket (not the caliper itself) or run a spacer. A spacer will require longer studs and really...it's only about 5 minutes worth of grinding and it doesn't affect your braking or safety at all, so I would just grind them down a bit. You could run a 26x11.5x15 on either wheel (which has a 10" tread width). You could also step up to a 28x11.5x15, like F8L but that would require some work on the fenders. __________________ SLP :: SCT :: Eaton :: Maximum Motorsports :: Baseline Suspensions :: Strange Engineering MM Bracket Racing Crew BAMA Performance Drag Team #1 Project Thread :: YouTube Channel

August 3rd, 2011, 06:12 PM	#5
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 7.92 @ 91.13mph 1/4 - 12.21 @ 115.84mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 13,456 iTrader: 12 reviews	Cool thanks man! Repped. I may go back to 4.10s, so that will play apart in what size tires I get, 26" or 28". So these tires Hoosier 17421QTP Hoosier Quick Time Pro D.O.T. Drag Tires On these wheels JEGS Performance Products 67088 JEGS Sport Star Cast Aluminum Wheels Will work fine? I Have longer studs in the back. As for the front, Ill just grind the caliper bracket down some, rather then getting spacers. Ill get these for the front: JEGS Performance Products 67051 JEGS Sport Star Cast Aluminum Wheels Everything look good? __________________ Vortech V1 Intercooled @ 11psi 394rwhp/392rwtq @ 9.5psi 415rwhp/400rwtq @ 11psi on Methanol Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

August 4th, 2011, 11:55 AM	#6
andrewskaggs Hardcore Enthusiast 2003 Mustang GT 8.26@83.06 (1/8) Join Date: Apr 2010 Location: Henderson, TN Posts: 1,104 iTrader: 4 reviews	Yep. That should be fine. If you have longer studs in the back, you'll probably have to use open ended lug nuts. Just remember that if you go with a 28" tire, you're going to need to do some work on the fenders. __________________ SLP :: SCT :: Eaton :: Maximum Motorsports :: Baseline Suspensions :: Strange Engineering MM Bracket Racing Crew BAMA Performance Drag Team #1 Project Thread :: YouTube Channel

August 4th, 2011, 07:49 PM	#7
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 7.92 @ 91.13mph 1/4 - 12.21 @ 115.84mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 13,456 iTrader: 12 reviews	Okay thanks for letting me know man, much appreciated. Ill probably just stick with the 3.73s and 26" tire. But I may go to 4.10s. Thanks again man __________________ Vortech V1 Intercooled @ 11psi 394rwhp/392rwtq @ 9.5psi 415rwhp/400rwtq @ 11psi on Methanol Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

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