Fastest stock HCI mustangs or is 12s impossible?

[WYLDFANTASYX]

Ok, I am wondering who all on here has broke into the twelves with a fox or sn-95 5.0 mustang with the LEAST amount of modifications. I am especially looking for cars that have ran into the twelves with stock heads cam and intake, preferably with no porting to either heads or intake, and preferably fuel injected but some carb comparisons are welcome.

In 2003 I had a Mustang Gt with stock HCI, it went 13.2@102.5mph and I have a buddy that says that is impossible. I think there was a 12 second run left in the car with that engine. I am looking for outside evidence that my car was not a freak of nature, I know it was not, and I want to replicate this setup in the future.

My car was a 95 with a CAI, mac pullies, timing at 13 degrees, and around 30,000 miles on the motor and no carpet, no spare tire. It had a 3.73 gear, alum driveshaft, centerforce clutch and adj quadrant. A tremec 3550 II road race trans, subframes, no front sway bar and mac rear control arms. I removed the rear wing and put slicks on this combo and powershifted like hell to run 13.2@102... I think with a few more minor mods or tweeks on a good day I think it could have ran twelves, what do you guys think?

[black91notch]

Quartermile rocket runs 12.80 all stock just suspension.

[WYLDFANTASYX]

Yeah I heard about that car last night at Middletown thats why I made this post. I would like to know some more about it, is it a Sn-95 or fox? What gear?

Does he get on here much and which track does he run at so I can have my buddy check out the car...





EDIT TO THAT FIRST POST: In 2003, I had a 95 mustang Gt 5.0......

[brncoupe5.0]

Its a fox click on his screen name and view his profile his name is James and hes cool as hell.

[quik lx]

I went 11.98@114 completely stock with just exhaust, pulley's, and UPR big mouth air filter.............OH Yeah also had a 150 shot spraying!:D

[WYLDFANTASYX]

I went 11.98@114 completely stock with just exhaust, pulley's, and UPR big mouth air filter.............OH Yeah also had a 150 shot spraying!:D






How fast without the spray?

[85_SS_302_Coupe]

I've seen a lot of cars at the track with cammed Explorer long blocks running 12s. You just have to hook and drive the balls off it. It's all about getting the lowest 60 you can when you don't make a ton of power.

[Sharad]

shooting for twelves this month with my stock motored '89. I'll let you know how it works out.

[Drivermod]

I ran 11's with a stock motored 98 GT.

Oh yeah, that was with a 2V 4.6:coo1:

[bangingears]

12.50's to 12.70's @107-109 with a bone stock engine out of a explorer with a stock mustang cam, stock MAF meter, stock injectors. As cheap and easy as it gets. Kurtis has been 12.1's @110mph with same explorer combo with some bolt-ons.

[12seclx]

12.50's to 12.70's @107-109 with a bone stock engine out of a explorer with a stock mustang cam, stock MAF meter, stock injectors. As cheap and easy as it gets. Kurtis has been 12.1's @110mph with same explorer combo with some bolt-ons.

make that a 12.06....... ;)

[Sharad]

12.50's to 12.70's @107-109 with a bone stock engine out of a explorer with a stock mustang cam, stock MAF meter, stock injectors. As cheap and easy as it gets. Kurtis has been 12.1's @110mph with same explorer combo with some bolt-ons.

Those GT40P motors make more power than the standard E7 Mustang motor, right?

[12seclx]

Those GT40P motors make more power than the standard E7 Mustang motor, right?

Yes sir.

My first year I had a E7 longblock combination...(113k miles)
Cobra intake
stock cam
1.72 rockers
stock computer- no chip...
A/C still on the car..... no short belt....
longtubes, x-pipe, spec clutch, power pipe, pulleys, 24 lb. injectors, 4.30 gears, trick flow valve springs, on pony wheels w/ bfg drag radials out back, no 2-step, no shift light....

Went a 12.88 @ 104.39 mph.... (60' was 1.83)

[93cobra]

ive been in many mustangs driving & riding shot gun....old curt's supernatural precise power shifts on the money everytime is definitely a major part of his 12.06

I'd put a hundred dollar bill on it that at best 5-10% of the members on this board would be capable of matching that time in his car....I'd put another hundo up that 75% would run more like 12.40's+ in it....me being one of them....

[Qtr milerocket]

WYLDFANTASYX 12's are definitely possible I think your '95 GT should be able to run comfortably in the 12's. My car is a 1990 SSP FL Coupe with mods in my signature and the stock untouched HCI it's nothing magical or mysterious it's just an extremely good running car for the mods that it has and in these last 10+ years of ownership it has over 1300 passes on this motor or the equivalent of 300 miles of WOT.

I just eclipsed the 12 second barrier last month after many, many years of not modiying the suspension or runnng slicks/lightweight wheels. Tony Defeo, Neil Van Oppre, Steve Collison, Ed Hohenberg, Bob Cosby, Al Renkel, Lee Rutter and many, many others are guys who pioneered the Stock 5.0 HCI movement starting in the late 80's.

Basically my car is all about weight-reduction, suspension, hook, and freeing up power the motor already has. The car has went a best of 12.81 @ 104.21 at a D/A of -294' the car definitely has more in it if I can once again find those same conditons once fall arrives. I run at any of the 3 surrounding local tracks but haven't been out since last month as most of the time I try to run in weather conditions that will best benefit the car.

This link is very cool it's Bob Cosby's page his 1988 LX coupe ran 12.52 @ 106.92 with the stock HCI and bolt-ons.......after he ran this he later modified the stock HCI and went 11.90's. http://members.cox.net/bobcosby/stang/


Peace :cool2:



James

[Sharad]

you guys are very inspiring! Based on your combinations, I don't know if I'll be able to hit twelves with the factory MAF & TB on the stock engine but I'm gonna try like hell to do so!

[92BlackStang]

with just some bolt ons black90lx went a 13.01 in his pink LX he had. Of course thats without a belt and some timing and some good driving 410 gear

[Sharad]

that's impressive. I NEEEEEEEEED to hit the strip ASAP! It would be nice if I could do it this Friday so I could bring the slip to the spring cruise.

[92BlackStang]

throw a bag of ice on it pull the belt and it will happen...

[Sharad]

If only it was that easy!!! :D

The car did wake up when I took off the smog, a/c, and p/s though.

[Timido]

throw a bag of ice on it pull the belt and it will happen...

We used to do that pull the belt off make a pass then shut it off and put the belt on before you go down the return road. I couldnt believe how much stronger the car felt with no waterpump alternator and power steering

[92BlackStang]

We used to do that pull the belt off make a pass then shut it off and put the belt on before you go down the return road. I couldnt believe how much stronger the car felt with no waterpump alternator and power steering
If your cooled down, YOu only have enough time to do your burnout and make the run. as soon as i crossed the line i would shut it off coast then put the belt back on like it never was off. I tell ya what i picked up 4 tenths by doin that.

[92BlackStang]

14.6 to a 14.2 in a 93gt

[NXcoupe]

The fastest I ever went in a COMPLETELY stock 89 GT was a 14.12. That was stock exhaust from the front to the back, airbox, stock 3.08 gear, etc. No mods whatsoever. It was also on street tires with a 1.99 to 2.01 60ft. James was there when I was running it, I was accused of having heads, nitrous, you name it. That was back in the day when you could still find a stock stang!

[92BlackStang]

my fastest was 14.20 stock everything with air silencer stock shifter.. 2.0's

[Jeff88coupe]

You can run 12's with a stock h/c/i 5.0....just takes some work. I ran a 13.69 at 101 with my coupe back when I first bought it....it only had a off road H-pipe, K&N panel filter, short belt, 235/60/15 dr's....still had the stock 2.73 gears. In '00 I got it to run a best of a 13.0 at 99 in NMRA factory stock trim on a 275/60 dr. Then in '01 I dropped in a rebuilt stock shortbock with a gt40p/gt40 intake/mild cam combo....it went a 12.19 at 110 n/a..and a 10.98 at 126 on a 200 shot. Get the car to hook the best you can..the drop in et will follow.

[WideOpenThrottl]

I have a buddy with a Fairmont with a 98 explorer motor in with only exhaust and a 150 shot all stock suspension that went 11.20's

[Sharad]

You can run 12's with a stock h/c/i 5.0....just takes some work. I ran a 13.69 at 101 with my coupe back when I first bought it....it only had a off road H-pipe, K&N panel filter, short belt, 235/60/15 dr's....still had the stock 2.73 gears. In '00 I got it to run a best of a 13.0 at 99 in NMRA factory stock trim on a 275/60 dr.

That's interesting that it went .69 quicker but 2 mph slower. I bet your 13.0 combo is pretty much what I'm shooting for... can you detail what you used in 2000 NMRA F/S trim?

[WYLDFANTASYX]

WYLDFANTASYX 12's are definitely possible I think your '95 GT should be able to run comfortably in the 12's. My car is a 1990 SSP FL Coupe with mods in my signature and the stock untouched HCI it's nothing magical or mysterious it's just an extremely good running car for the mods that it has and in these last 10+ years of ownership it has over 1300 passes on this motor or the equivalent of 300 miles of WOT.

I just eclipsed the 12 second barrier last month after many, many years of not modiying the suspension or runnng slicks/lightweight wheels. Tony Defeo, Neil Van Oppre, Steve Collison, Ed Hohenberg, Bob Cosby, Al Renkel, Lee Rutter and many, many others are guys who pioneered the Stock 5.0 HCI movement starting in the late 80's.

Basically my car is all about weight-reduction, suspension, hook, and freeing up power the motor already has. The car has went a best of 12.81 @ 104.21 at a D/A of -294' the car definitely has more in it if I can once again find those same conditons once fall arrives. I run at any of the 3 surrounding local tracks but haven't been out since last month as most of the time I try to run in weather conditions that will best benefit the car.

This link is very cool it's Bob Cosby's page his 1988 LX coupe ran 12.52 @ 106.92 with the stock HCI and bolt-ons.......after he ran this he later modified the stock HCI and went 11.90's. http://members.cox.net/bobcosby/stang/


Peace :cool2:



James







Awesome man, thanks for the comments!

[Qtr milerocket]

Awesome man, thanks for the comments!

No problem man.........:bigthumb



Peace :cool2:




James

[Sharad]

yesterday I took the screen off of my stock maf sensor and ditched the factory catback for some mac pro dumps. Noticeable difference!

[Jeff88coupe]

That's interesting that it went .69 quicker but 2 mph slower. I bet your 13.0 combo is pretty much what I'm shooting for... can you detail what you used in 2000 NMRA F/S trim?


Yes..the 13.69 was with stock 2.73 gears...going threw the traps in 3rd. My '00 nmra f/s setup was a bone stock (and wore out 90K+ mile) shortblock, gt40p heads, explorer intake, 1 5/8" shorties, 2 1/2" x-pipe with mufflers and tailpipes,65mm t/b, pulleys, 19# inj with stock speed density, tremec 3550, 4.30 gears, 275/60/15 bfg dr's. Also had to run a full belt with stock fan and power steering pump. I think the car had to weigh 3400# then also.

[Sharad]

jeff, what kinda sixty foots did you pull with that combo?

[Jeff88coupe]

If I remember right...mid to low 1.8's.

[Sharad]

cool. Well, I ordered 275/50-15 Mickeys and my best-good-buddies at Summit send me BFGs... :mad: but anyway, I'll get this thing to the track asap and see how it goes. I'd be stunned if it goes much faster than 100mph on the stock motor, so I'll have to get it done in the first sixty feet!

[INSANEBA]

Good luck bud, let us know how you do....I'm working on a similar combo right now ...

[92BlackStang]

i got a brand new set of bfg's i would of sold you for half the price... anyways stick cars like bfg's better the new mickeys are for auto cars..

[Sharad]

Good luck bud, let us know how you do....I'm working on a similar combo right now ...


Thanks. I'm almost finished with phase 1.

Cleared out the engine compartment a bit:

http://i142.photobucket.com/albums/r98/sraldiris/phaseone015Medium.jpg

Suspension/Exhaust:

http://i142.photobucket.com/albums/r98/sraldiris/phaseone020Medium.jpg

Tires/Wheels:

http://i142.photobucket.com/albums/r98/sraldiris/draglites.jpg

I don't think I'll make test n tune tomorrow. I still have to install the electric fan & battery box, and then lower the car about an inch. If it doesn't run twelves like this, I know a mass air meter and a tune should get it close.

[Sharad]

Welp, it's late and I'm tired, but... I got the electric fan on:

http://i142.photobucket.com/albums/r98/sraldiris/phaseone028Medium.jpg

[Drivermod]

Dang thats clean! Looks like fun.:bigthumb

[WYLDFANTASYX]

i got a brand new set of bfg's i would of sold you for half the price... anyways stick cars like bfg's better the new mickeys are for auto cars..


How much are you selling those BFGs for? Dont you live down the street from me?

[Sharad]

Dang thats clean! Looks like fun.:bigthumb

Thanks! Yeah, I never thought I'd have this much fun going this slow... but like one of my friends put it, it's fun to "molest a stocker" like this car. I forgot how good these cars were from the factory!

[92BlackStang]

How much are you selling those BFGs for? Dont you live down the street from me?
give me a call 937 559 7034

[347sc]

i got a brand new set of bfg's i would of sold you for half the price... anyways stick cars like bfg's better the new mickeys are for auto cars..


Depends on the car. My orange car went 1.59-.60 on Mickeys

[92BlackStang]

yeah it depends on the car but the mickeys are for autos in my book

[Sharad]

I think Mickeys are for wheelies which is why I ordered them... but they screwed up my order so badly, I just didn't want to deal with dismounting the BFGs and waiting for the mickeys to come.

[Sharad]

The work is done. Hopefully this is enough to put the car in the twelves. I'm just waiting on a test n tune night. Here are some pics from today:

http://i142.photobucket.com/albums/r98/sraldiris/phaseone062Large.jpg

http://i142.photobucket.com/albums/r98/sraldiris/phaseone085Large.jpg


This is everything I removed from the car. Some of these parts were replaced with lighter weight alternatives... but most of this stuff was just removed. This has to be over 200lbs worth of crap, a lot of it over the front tires.

http://i142.photobucket.com/albums/r98/sraldiris/phaseone098Large.jpg

[brncoupe5.0]

AHHHHHHHH good luck with the BFGs I have them on my car and I think they suck at the track there decent on the street.What track are you going too??

[mustangboy]

Hey Sharad for comparison sake I'd take one of the 10 holes and make a few passes w/ it and a few without it in the spare tire well. I acutally lost 60' time by taking out the spare.

[Jeff88coupe]

The BFG's will work...just have to tweek the suspension a bit to make them work well. Heck the NMRA F/S guys are pulling 1.5's on the BFG dr's.

[Timido]

but the Mickeys will work better! Looks Good Sharad

[Sharad]

Thanks Tim!

Results from today:

1.976 60 ft [BAD spin]
5.551 330 ft
8.533 1/8 ET
82.24 1/8 MPH
13.297 1/4 ET
103.21 1/4 MPH

spun to a 1.97 60', bogged a 1.89, spun a 1.91.
13.29, 13.29, 13.31 consecutively. LOL!

I've gotta get this thing to hook!!!!!!!!!!!!! :lol:

[Jeff88coupe]

103 mph is right there for running a 12.99. Find a set of 26x8.5 slicks to borrow.

[Sharad]

thanks for the info. I think the 12.99999999 is there. Next time at the track I'm shooting for at least a 1.79 sixty foot. Hopefully I'll get another shot soon.

[Sharad]

here it is in the lanes at London Dragway:

http://i142.photobucket.com/albums/r98/sraldiris/phaseone140Medium.jpg

[1991mustang]

Looking good, man I wish that you where in Ohio.. So we could hit Kilkare up and you could see me drag the rear bumper off. lol Keep up the hard work on the LX and make thing fast.. If you need help I am only 4 hours away..lol

[Qtr milerocket]

Results from today:

1.976 60 ft [BAD spin]
5.551 330 ft
8.533 1/8 ET
82.24 1/8 MPH
13.297 1/4 ET
103.21 1/4 MPH

spun to a 1.97 60', bogged a 1.89, spun a 1.91.
13.29, 13.29, 13.31 consecutively. LOL!

I've gotta get this thing to hook!!!!!!!!!!!!! :lol:

As Jeff stated 26/8.5/15 et drags are your friend and your mph will easily support solid 12's, I believe you can run in the 12's with your BFG's you just have to play with tire pressure and launch rpm and see what they like.

If you do get a set of small slicks and have similar conditions like you had yesterday 12's are there for the taking and based on your preliminary runs I believe your car should ultimately be capable of running somewhere in the 12.70 range in it's current trim. :)



Peace :cool2:




James

[Sharad]

As Jeff stated 26/8.5/15 et drags are your friend and your mph will easily support solid 12's, I believe you can run in the 12's with your BFG's you just have to play with tire pressure and launch rpm and see what they like.

If you do get a set of small slicks and have similar conditions like you had yesterday 12's are there for the taking and based on your preliminary runs I believe your car should ultimately be capable of running somewhere in the 12.70 range in it's current trim. :)



Peace :cool2:




James


Thanks for the input James. Your 12.81 pass is major inspiration for me!

I'm gonna try a couple of little tricks to drop the sixty. (I'll post pics, of course) One of my things with this car is that I want to race it EXACTLY like I drive it every day. I'll try to run in the 12s with these tires. If they don't work I'll try some ET Streets or ET Street Radials. I know I'm leaving some ET on the table by not running ET Drags though. :(

Question for you and the other stock motored boys: how does my back half time compare to yours? Is the car doing what it needs to do in the last 1/8? Maybe you could post the incrementals on your 12.81? The car feels good on the track...

[Qtr milerocket]

Thanks for the input James. Your 12.81 pass is major inspiration for me!

I'm gonna try a couple of little tricks to drop the sixty. (I'll post pics, of course) One of my things with this car is that I want to race it EXACTLY like I drive it every day. I'll try to run in the 12s with these tires. If they don't work I'll try some ET Streets or ET Street Radials. I know I'm leaving some ET on the table by not running ET Drags though. :(

Question for you and the other stock motored boys: how does my back half time compare to yours? Is the car doing what it needs to do in the last 1/8? Maybe you could post the incrementals on your 12.81? The car feels good on the track...




No problem Sharad yeah you'll get it man don't worry!, :D your 1/8 mile mph will support 12's as well as your 1/4 mile mph, stock HCI 5.0's running 12.90's typically 330' in the mid-low 5.20's and run the 1/8th in the low 8.2xx's to high 8.1xx's and when you get hook you'll be there immediately.

Running drag radials is a challenge but they'll (BFG's) hook the best when they're bald when I had 3:08's I was able to consistiently achieve mid-low 1.80 60' times at 12-13 psi but the MT et street radials in my opinion out-hook the BFG's out of the box without having to wait until they are bald to hook.


Here is my 12.81 pass which didn't show a 60' time on the slip:

330ft.........5.15
1/8............8.09
mph...........83.36
1/4............12.81
mph...........104.21



Peace :cool2:



James

[331TwistedWedge]

thats a clean car sharad :bigthumb ... you have enough mph for 12's, just get it to hook ... back in the day, i pulled a 12.98 at 102.98 on bfg's ... good luck ....

[Sharad]

Thanks man.




so..... the culprit:

http://i142.photobucket.com/albums/r98/sraldiris/phaseone144Medium.jpg

the remedy:

http://i142.photobucket.com/albums/r98/sraldiris/phaseone142Medium.jpg


"took the restrictor plate off of the red dragon to give it a little more juice... it's not exactly street legal though, so keep it on the down low."

http://i142.photobucket.com/albums/r98/sraldiris/phaseone147Medium.jpg

[Sharad]

1.6930 60 ft [5,200 rpm launch, dead hooked!]
5.2219 330 ft
8.1781 1/8 ET
83.01 1/8 MPH
12.9160 1/4 ET
103.70 1/4 MPH

The UPR Pro Series control arms helped transfer the weight and after 8 passes I finally figured out the best way to launch on these BFG DRs. Finally in the twelves! So there's my answer to the original poster. Stock motored '89 LX.

[Drivermod]

Congrats. At your power level a 1.69 is a great 60 ft.:bigthumb It's a bit counter intuative but we also have found that you need to hit the BFG's pretty hard and get the weight of the car transfered as quickly as possible to get them to hook. Slipping the clutch or leaving soft on them brings out the worst in the tire.

[Sharad]

Thanks Ian.

About the launch... I've not been able to pop the clutch any higher than 3500rpm without tire spin or shake. That's with a good burnout and the tires at 12psi. I've got pro series control arms but no anti roll bar. The battery is in the back, but the spare tire, carpet, and felt stuff is removed from the hatch area. Also, the tail pipes are removed. That's the only weight reduction I've done in the rear. The car is on factory struts/shocks and FRPP B springs though...

How do you recommend to launch on the BFGs?

[Timido]

Like Ian said you have to try to shock the tires. When I ran F/S with the BFG's I either hooked or spun. Once I had some power I had alot of problem with tire shake. I left of a 2 step side steeping the clutch.

[Sharad]

Tim,

If you would, try and describe the particulars. What rpm did you launch at? Air pressure? Sixty foot times? Vehicle weight? Ballast weight?

I need to dig up the post on nmraracing.com where they're talking about the different F/S combos. I thought almost all of the top guys were sixty footing in the 1.60s. That's with A LOT of ballast and I'm guessing around 100 more rear wheel horsepower. I'm happy to be within a tenth of their sixty foot time.

I don't know that my car has much more in it at this power level on these tires. I won't go back to the track until I've made some decent mods. Maybe motor stuff...

Anyway, any recommendations you have for me would be GREATLY appreciated. I can't duplicate the knowledge you all have gained from running F/S. All I can do is emulate your combos/strategies!

[Sharad]

here you go... this is from mid 2007, but the ETs are still close:

http://www.kenshell.com/atco-best.jpg





With the exception of Jeff Schmell who is flat out throwing it DOWN, they're all in the 1.60s-1.70s. I honestly feel blessed to be within a tenth of most of those guys with my daily driver!

[Timido]

my best ever on those tires is 1.59 The norm was 1.62-1.65 when It didnt shake or spin and the planets aligned

[Sharad]

LOL! I was literally praying for the planet alignment thing on Friday. Best pass of the night was the last pass, at like 10:45pm!

[Drivermod]

I'd say you've figured it out. A 1.69 is really good for your power level and weight. I doubt it would go any better on slicks.

I may sound like an ass but most of the guys in F/S are not getting it done in the 60 ft department. High 1.5's should be the norm at their power levels and weight. In '05 we averaged about a 1.57. A 1.6 anything was cause for some changes. Changes in rules and technology should allow for even better times now. John Leslie had a 1.51 60 ft in his F/S car in Georgia this year. Now thats gettin' it done. Course he fell off to a 1.7 something and lost in the finals against the Farmer.

[MADMOD]

I'd say you've figured it out. A 1.69 is really good for your power level and weight. I doubt it would go any better on slicks.

I may sound like an ass but most of the guys in F/S are not getting it done in the 60 ft department. High 1.5's should be the norm at their power levels and weight. In '05 we averaged about a 1.57. A 1.6 anything was cause for some changes. Changes in rules and technology should allow for even better times now. John Leslie had a 1.51 60 ft in his F/S car in Georgia this year. Now thats gettin' it done. Course he fell off to a 1.7 something and lost in the finals against the Farmer.


I wouldn't say an ass but a good crew cheif who see's where the competion is lacking and takes advantage of it. You guys cleaned house how many times in F/S?

[Sharad]

Thanks. I was wondering if it would be any better on some ET Streets. It looks like these BFGs may only last for the summer. I'm trying to plan ahead for what to replace them with. I'm not worried about rear end sway on the bias plies. These BFGs at 12psi sway a lot.

I don't think you sound like an ass about the F/S guys. Those guys have A LOT more power than me... and they're purpose built racecars. I thought Jeff Schmell must really have his combo sorted out, but based on what you're saying you guys and John Leslie were REALLY gettin' it! 1.51 is just AMAZING!!!!!!

If anything I may try some ET Streets and an anti-roll bar... but I'd probably disconnect one side on the street. Also, some shocks/struts/springs would be nice too. I'm leaning toward Strange 10-ways, but my long term goals with the car are so lofty, I should probably go with something like santhuff.

[Timido]

Put a set of ET DRAG 26x8.5s on it and leave off the factory Limiter.

[Qtr milerocket]

Put a set of ET DRAG 26x8.5s on it and leave off the factory Limiter.

Yeah 100% what Tim said......I've pulled mid 1.60's (1.66-1.65) using that exact tire/launch technique.



Peace :cool2:



James

[Sharad]

have you guys seen where MM&FF's "Pro Stock Pony" went 1.49 with hotchkis control arms, eibach springs, and 28" ET Streets? I don't necessarily believe everything I read in the magazines, but that's flat hookin' for a car that weighs more than me and has similar suspension.

With the long term goal in mind, I've thought about switching to 28" tires on the next tire change, but I won't do it if it looks too jacked up in the back. I have clearanced the quarter panels like crazy though. My BFGs touch in the inside if I turn to hard, but they never come close to the quarter panels.

275/50-15 BFGs:

26.1 tall, 11.3 section width

28x11.50 ET Streets:

27.6 tall, 11.1 section width


I'd say they'll fit just fine. That's .75 taller on the radius, but I've got that much room up top. The section width is actually skinnier too!