88 Fiero Formula Performance Tires (Page 1/2)
Reborn756 AUG 26, 10:53 AM
Howdy folks, Darryl here again with another question.

If you've been keeping track of my 4.9L swap post, you know that on 9/5/2020 I'll finally be picking up my Fiero, a yellow 88 Formula. I'm assembling my shopping list for the car and will need tires. I'm looking for summer performance tires, trying to stay around $350 max for the full set. Want to retain the stock tire sizes (205-60-15 fronts and 215-60-15 rears). All four tires need to be a matching set. Would prefer at least H speed rated tires.

Do any of you folks have tire recommendations based on that criteria?

Thanks!

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- Darryl

cvxjet AUG 26, 12:05 PM
You can go to Tirerack and look at what they have in your sizes...The options are limited....I have been using Generals on my vehicles for a while and like them. I use the Altimax RT43 on my Van...General tires are LIGHTER which makes your car perform better and feel better. Here is a link to a search for your sizes; https://www.tirerack.com/ti...o=60&rearDiameter=15
Warlordsix AUG 26, 03:30 PM
Well, all I can say is a couple months ago I put on a brand new set of 225/50-16 BFG G-Force Comp 2's, and they are easily the most impressive street tires I've ever had on a car. I can hardly believe the tremendous grip these tire have in real-world conditions, which is exactly what I was hoping. I specifically looked for a high-performance tire with a directional tread that would readily shed water and reduce the potential for hydroplaning in a light car with wide tires. Their price is a little higher than you were hoping, but they are still not expensive. W Speed rating (ie up to 168 mph). https://www.discounttire.co...104ca5f699d015e912d4

Ernie



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'87 Fiero 4.9 5-speed

[This message has been edited by Warlordsix (edited 08-26-2020).]

Frenchrafe AUG 27, 05:29 AM
He's looking for 15" tyres.
The BFG G Force doesn't come less than 16".

You are going to be limited finding "good" griping tyres for 15" rims unless you go competition/semi-slicks like Toyo or Yokohama.

Regards,
Rafe


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"Turbo Slug" - '87 Fiero GT. 3800 turbo. Sticky tyres. Driven hard!
https://www.youtube.com/cha...1wZvWQlkYxTjivW_0XNg

Reborn756 AUG 27, 10:06 AM
Thanks for the info so far folks!

Yeah, unfortunately I only saw those G Comps in 16", which is a shame because I like the sound of them. Another big problem I'm facing is finding a decent matching set of tires with the two different sizes. I can find a set that seems decent in 205s, and in 215s, but not both.

Which poses two more questions:

1: Will I notice a difference in how the stock 88 Formula suspension handles if I change the front tires to 215s?

2: will changing just the front tires to a different size affect my speedometer? I would imagine not, since the drive tires should be the only ones that matter in that equation. Honestly I don't know for sure though, we rarely ever change tire size beyond stock, and when we do it's on a car that's being clocked on the strip, so who cares if the Speedo is accurate?

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- Darryl

88Fingers AUG 27, 11:13 AM
Hey Darryl, I have an '88 GT that needed tires in the stock size however I do like to use 225s on the rear. They are Cooper CS5 Ultratouring and not too bad at all.
Reborn756 AUG 27, 11:24 AM
My only concern with changing the tire size is the accuracy of the speedometer. That's always an annoying thing to fix, swapping drive and driven gears and whatnot until you find the right combo. Not exactly a job I enjoy

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- Darryl

cvxjet AUG 27, 10:14 PM
I switched to 16 x 7 wheels with 205/55 and 225/55 tires...(Size comparo between stock GT tires (215/60-15 (25" diameter) and my new tires (25.7") I had switched out the (85) 4 speed for a later FIERO GT Getrag 5 speed....My Speedo is as accurate as I can measure!

Most stock speedos read a bit high, so going to a bigger tire makes it closer to true.....
Reborn756 AUG 28, 12:18 AM
Good to know, thanks Jet! Does anyone make a reproduction wheel for these that's 16x7? Would prefer to keep the factory wheels, I'm a big fan of keeping the cosmetics exactly how the car was built to look.

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- Darryl

BillS AUG 29, 02:10 PM
The only decent performance tires available in those sizes are BFG TA and they are almost double your price ceiling at Tire rack.

Tough finding good tires in 15" - they keep discontinuing them. I use 215x60-15s on one of my cars and really need to replace them but the ones I have are no longer made.

If I were you I'd go 215 at both ends and the best one out there seems to be the Yoko Avid Touring-S