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GT40 Tech - Chassis,Brakes,Tires,&Wheels Chassis and Handling.

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Old 17th May 2016, 09:37 PM   #1
GT123
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Let's talk about tires

What rims size and brand of tires do you have on your car?
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Old 19th May 2016, 06:59 AM   #2
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Cool Re: Let's talk about tires

Ok, I'll bite.

M&H Racemaster 390/45r15 Drag Radials on 15X14s on rear, and BF Goodrich G-Force Rival S 225/45r15s on 15x8s on front. (used to run Yokohama Advan A048s on the fort but they wear waaaay too fast to use on the street)

My 2cents, S
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Old 30th May 2016, 06:25 AM   #3
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Re: Let's talk about tires

A more traditional 15 x 8 up front, 15 x 10 in the back, all of which are shod with 10 year old BFG Comp T/A's. Now that I am putting real mileage on the car, I am starting to think about what will replace them but I am at a loss to find something in the current 205/60 & 295/50 sizes.

Any suggestions?

Chris
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Old 30th May 2016, 06:29 AM   #4
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Re: Let's talk about tires

Quote:
Originally Posted by ckouba View Post
A more traditional 15 x 8 up front, 15 x 10 in the back, all of which are shod with 10 year old BFG Comp T/A's. Now that I am putting real mileage on the car, I am starting to think about what will replace them but I am at a loss to find something in the current 205/60 & 295/50 sizes.

Any suggestions?

Chris
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Old 30th May 2016, 08:31 AM   #5
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Re: Let's talk about tires

Quote:
Originally Posted by ckouba View Post
Now that I am putting real mileage on the car, I am starting to think about what will replace them but I am at a loss to find something in the current 205/60 & 295/50 sizes.

Any suggestions?

Chris
You might want to look at Mickey Thompson tires...available in a wide range of sizes, and in both radial and bias ply.

I am ditching my Cobra's 20 year old BFG T/A's for a set...hoping to, anyway...there might be a mismatch in rim width...rather than buy new wheels I would rather just go back on with new BFG's in the current sizes.

Cheers!!

Doug
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Old 30th May 2016, 04:58 PM   #6
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Re: Let's talk about tires

A lot of people swear by Avon CR6ZZs. I got mine from Roger Kraus Racing. Roger Kraus Racing Ent., Inc.- Castro Valley, CA.
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Old 30th May 2016, 04:59 PM   #7
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Re: Let's talk about tires

Quote:
Originally Posted by YerDugliness View Post
You might want to look at Mickey Thompson tires...available in a wide range of sizes, and in both radial and bias ply.

I am ditching my Cobra's 20 year old BFG T/A's for a set...hoping to, anyway...there might be a mismatch in rim width...rather than buy new wheels I would rather just go back on with new BFG's in the current sizes.

Cheers!!

Doug
The M/T's don't come in GT40 appropriate sizes sadly. The best choice in 165s is the Avon.
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Old 30th May 2016, 06:04 PM   #8
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Re: Let's talk about tires

So since we're discussing tires, anybody have experience, knowledge, or opinion on the Coker Firestone Indy Tire sized 920-15 and 1200-15? As shown on the Coker website, with a gold line and gold " Firestone" lettering it should look excellent on a 40. Will the size fit the car and is a gummy tire or lack of tread be an issue. Price wise they are in the neighborhood of the Avons. Information on the website references them as a GT40 type tire.
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Old 31st May 2016, 04:44 AM   #9
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Re: Let's talk about tires

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Avons 😄😄👍👍

I looked around but I could only seem to find the gold plated ones on line- like $450 a tire for the rears and $350 for the fronts. For that $'s, I'd hope they were many leagues above the BFG's.

Are there any intermediate options (price-wise)? Anyone ever try the Nittos with road course 205 fronts and drag 325 rears?

Those Cokers are more expensive than the Avons... Are they DOT rated?

Chris
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Old 31st May 2016, 07:34 AM   #10
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Re: Let's talk about tires

You have a GT40 and you would go cheap on tires?
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Old 31st May 2016, 07:47 AM   #11
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Re: Let's talk about tires

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You have a GT40 and you would go cheap on tires?
Yeah, but mine's not "real"...
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Old 31st May 2016, 07:54 AM   #12
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Re: Let's talk about tires

My Avons have been on the car for at least 4K miles and still have a lot of tread left front and rear. I have gone down from 295s to 275s in the rear. If anyone would like to try the 295s I would sell them cheap if you pay for shipping. IMO the Avons are head and shoulders better than BFGs.
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Old 31st May 2016, 09:30 AM   #13
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Re: Let's talk about tires

Avon 100%
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Old 1st June 2016, 12:21 AM   #14
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Re: Let's talk about tires

Okay, what about options for a 12" rear width and 10" front. I have both 15" and 16" dia. wheels and still struggling to find appropriate tires, the only option appearing to be Michelin TB15, which at a 335/35-15 are bit shorter in the rear than I would have liked. I'm actually considering hand grooving a set of slicks.

Julian
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Old 1st June 2016, 08:33 AM   #15
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Re: Let's talk about tires

We have used Goodyear blue streaks
8.00x15 is a Good fit on a 12 inch rear and
6.00x15 on a 10 inch front
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Old 1st June 2016, 08:49 PM   #16
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Re: Let's talk about tires

I am like Chris. I am getting ready to replace my Nittos (on the rear). The Drag radials are a sticky tire and they pick up a fair amount of gravel. Traction is extremely good. The problem is that Nitto has dropped the 325's in the 15" variety, unless someone has managed to find any. I think you can get them in the 17" tire. I don't particularly want to mix tires as the Extreme Performance 225's barely show wear. I have the 8 and 10" rims.

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Old 23rd June 2016, 07:29 AM   #17
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Re: Let's talk about tires

My car came with the Dunlop GT qualifiers. 295/50R15 rears and 225/50R15 fronts. Unfortunately the previous owner did not drive the car at all and I think they've been sitting too long. They feel hard and one of the rears has a flat spot in in. Extremely annoying drive... I have Mickeys on my Cobra. A reasonably priced good looking alternative to the Goodyear Billboards Bias plies. And I'm not buying new rears every 2000 miles.... I'm looking for a reasonable street tire. I think the AVON's look great, drive great, I run AVON's on my race car. Great rubber. But I don't want to pick up every stone on the road and buy new tires all the time. I drive my cars... a lot. It appears to be very difficult to find R15 tires in these sizes anymore. So anyone with recommendations for a street tire in those sizes, I'm all ears!
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Old 23rd June 2016, 08:44 AM   #18
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Re: Let's talk about tires

Gus,

We have GT owners running Avons who have over 10K on the tires (no track time) and still have legal tread. The Avons do toss some stones but not like the Goodyear race rubber.

Until someone comes out with tires that both fit the GT40 AND are decent the Avons are the best choice. Also 225s on the front can be problematic. Some 225s rub a lot and other only at full lock. Have you removed the steering limiters on your rack? Doing so will allow a much tighter turning radius but will not work with 225s. I had 225s on my MK II and with the limiters removed I rubbed at full lock but did gain a lot of maneuverability so I put up with it. I did replace the 225s (they were 50 series from the original owner) with 205/60s and gained the proper clearance and better look.

You can also cut the steering limiters to improve lock-to-lock but still prevent rubbing.
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Old 23rd June 2016, 10:12 AM   #19
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Re: Let's talk about tires

Thanks Rick, I have no rubbing. To be honest, I haven't checked for the limiters, present or not. I don't think they are on the Rack. Frankly, 10K miles is quite reasonable. So I may opt for the AVON's. And yes, picking up debris is a nuisance, so if the Avon's are not as bad as the Good Years, I guess I'll just have to spend a shit ton on Tires....
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Old 23rd June 2016, 10:20 AM   #20
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Re: Let's talk about tires

The limiters are inside the rack. If you cut the tie wrap on the big end of the boot and slide it out, they are white nylon and strapped to the end of the rack housing.
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