Super Snake Tire Size

[cobraengineer07]

Just found Pirelli P-Zero's 295/30ZR20's fits our 10" rear rims and is the same 27" outside diameter as the stock GT500 Tire. This tire per Perelli is available 3rd quarter 2007 (Now). We can still run the 255/35ZR20's up front . Aston Martin Vanquish uses aspect ratio's with Pirelli of 30ZR rear and 35ZR front. SAI can we get these for the rear? Should help loads on traction and fits our cars! Also they are 7/10" lower than the proposed 275/35ZR20's which should also improve the rear ride height giving the full lowering benefit of the springs which were designed for the stock 27" tire height. Here is a PDF of Tire Specs from Pirelli.....Pirelli P-Zero Nero PDF

[Tribeca North]

Yeah I would hope that SAI would already have tested/be testing with these 295s? I would love to know if they've tried these....of course it sounds like a no brainer but the question would be whether there are rubbing issues... any idea on potential clearance issues for 295's with the Alcoa wheels?

or........ (if SAI is already dead-set decided on 275 rear tires for the SS).......we may simply have to wait until someone with an early Super Snake conversion actually does the swap for the PZero 295s.

 

You are correct though, Pirelli product info spec's the approved rim width from 10.0" to 11.0" for these 295's.

[Cobraengineer]

Yeah I would hope that SAI would already have tested/be testing with these 295s? I would love to know if they've tried these....of course it sounds like a no brainer but the question would be whether there are rubbing issues... any idea on potential clearance issues for 295's with the Alcoa wheels?

or........ (if SAI is already dead-set decided on 275 rear tires for the SS).......we may simply have to wait until someone with an early Super Snake conversion actually does the swap for the PZero 295s.

 

You are correct though, Pirelli product info spec's the approved rim width from 10.0" to 11.0" for these 295's.

I can't see why they should rub. According to Pirelli the section width is 11.6" for these 295's, our stock Goodyear 285's section width is 11.4". The 275's that SAI was giving us is 10.9" = 1/2" narrower than stock. Talk about a step in the wrong direction. Do the new SS rims have a different offset? It would make no sence to design a wheel that has less clearance than stock. I hope the issue was just availability. These tires are only now available (were not at time of SS anouncement).

[jimbobbeg]

I can't see why they should rub. According to Pirelli the section width is 11.6" for these 295's, our stock Goodyear 285's section width is 11.4". The 275's that SAI was giving us is 10.9" = 1/2" narrower than stock. Talk about a step in the wrong direction. Do the new SS rims have a different offset? It would make no sence to design a wheel that has less clearance than stock. I hope the issue was just availability. These tires are only now available (were not at time of SS anouncement).

 

The only problem I see is that they are $997 EACH.

[Cobraengineer]

The only problem I see is that they are $997 EACH.

The 275's are $865 each. I for one will pay $132 x 2 = $264 more for this upgrade. Who will complain about $264 more after paying $28,000 for the SS.

[Tribeca North]

The 275's are $865 each. I for one will pay $132 x 2 = $264 more for this (295 tires) upgrade. Who will complain about $264 more after paying $28,000 for the SS.

 

+1

[SoCalSnake]

The 275's are $865 each. I for one will pay $132 x 2 = $264 more for this upgrade. Who will complain about $264 more after paying $28,000 for the SS.

 

+2

[jimbobbeg]

The 275's are $865 each. I for one will pay $132 x 2 = $264 more for this upgrade. Who will complain about $264 more after paying $28,000 for the SS.

 

From what I've read I don't think it will be as simple as paying an extra $264 for an upgrade. SAI has stated that the tire size is set. One will have to buy the larger tires separately, have them mounted, and then sell the extra tires.

 

I feel SAI should opt for the bigger tires as standard equipment for the SS. Why should this upgrade be required after spending $28,000 on the SS?

[intguys]

My thoughts exactly!!! not to mention that when they announced the GT500 was coming out, one of carrols biggest influences was to put the biggest tire they could!!! Now we up the horse power and put a smaller tire on, that makes no sence. I think they could put a wider tire on the rear if a customer asks without killing thier bottom line! The upgrade is between 28,000 and 32,000 I mean come on!

[shelby 08]

The 275's are $865 each. I for one will pay $132 x 2 = $264 more for this upgrade. Who will complain about $264 more after paying $28,000 for the SS.

 

 

+3 " this is logical"

[JimC]

+3 " this is logical"

Tires are nice but suspension is what you need more then tires.

Bigger tires with out the right suspension make a big o bozo looking car that grabs a bit better but handle like crapola.

Good suspension with 275's will do better then just 305, and you’ll leave the 305's eaten dust.

 

Ok so if you get the right suspension and add 305's then you are ready for the track. But remember not everyone will spend their entire life at the track.

 

You can't please everyone all the time. But maybe they can build a balance car that can be altered "slightly" (small minor changes) without diverting from the SS concept to meet different needs. Tires are a no brainier; you could get them any where.

 

Just my thoughs, I would rather have a solid car the handle stops turns and get it with 275's then one that just has bigger tires, handles hard and turns poorly.

 

Think about it, after you get your car back it will take longer and cost more, (and some people still won't get the right or best suspension) when they order parts then fight the install; or find a shop to do the install which usually winds up costing even more. If you're lucky there’s a shop near by you can go to that deals with suspension.

 

But then you've modified your car and will it still be covered?

 

Vs tires, you simply go to you trusted local shop and in a few hours you're done all is good everyone is happy and car is still covered.

 

And if that twisted logic did work for you try this.

 

If you need 305's that bad then by the time you learn your new car after you get her back, those 275's I'll be read for replacement. Now would you rather burn through a set of cheaper 275's or expensive 305's mastering hole shots and launches with your new car?

 

I want it now just like everyone else but I'd rather wait and let them do all the testing and get it right before they build mine.

 

Sure would be a nice Christmas present. Give me a few months I'll probable be just as antsy as you all are.

Don't you just hate the wait; the anticipation is enough to drive you crazy mad.

 

Lastly if I had options to choose from. I'll take good solid performance suspension options over tire options any day.

I'm not trying to bust anyone chops here just putt’en in my 2cents for what it worth.

 

JimC

[Vogon]

I plan on driving my SS during the good weather (5-8 months), and will accept whatever tires SAI puts on, for starters. As it gets close to tire replacement time, I'll be compiling everything I've read on the forums, as to experiences with tires and suspension. As the car won't be just stored in a garage, nor raced, I expect to go through many sets over the lifetime of the car (and me). At a grand a pop, I can't afford the widest, stickiest ones available, but I don't want the hardest compound either. There may be a number of sizes/compounds used over the years. They may be considerably more expensive than gas... Yikes!

 

While the difference in tire cost, from one to the other, may be minimal compared to $28,000 the total tire cost is not.

[cobraengineer07]

Tires are nice but suspension is what you need more then tires.

Bigger tires with out the right suspension make a big o bozo looking car that grabs a bit better but handle like crapola.

Good suspension with 275's will do better then just 305, and you’ll leave the 305's eaten dust.

 

Ok so if you get the right suspension and add 305's then you are ready for the track. But remember not everyone will spend their entire life at the track.

 

You can't please everyone all the time. But maybe they can build a balance car that can be altered "slightly" (small minor changes) without diverting from the SS concept to meet different needs. Tires are a no brainier; you could get them any where.

 

Just my thoughs, I would rather have a solid car the handle stops turns and get it with 275's then one that just has bigger tires, handles hard and turns poorly.

 

Think about it, after you get your car back it will take longer and cost more, (and some people still won't get the right or best suspension) when they order parts then fight the install; or find a shop to do the install which usually winds up costing even more. If you're lucky there’s a shop near by you can go to that deals with suspension.

 

But then you've modified your car and will it still be covered?

 

Vs tires, you simply go to you trusted local shop and in a few hours you're done all is good everyone is happy and car is still covered.

 

And if that twisted logic did work for you try this.

 

If you need 305's that bad then by the time you learn your new car after you get her back, those 275's I'll be read for replacement. Now would you rather burn through a set of cheaper 275's or expensive 305's mastering hole shots and launches with your new car?

 

I want it now just like everyone else but I'd rather wait and let them do all the testing and get it right before they build mine.

 

Sure would be a nice Christmas present. Give me a few months I'll probable be just as antsy as you all are.

Don't you just hate the wait; the anticipation is enough to drive you crazy mad.

 

Lastly if I had options to choose from. I'll take good solid performance suspension options over tire options any day.

I'm not trying to bust anyone chops here just putt’en in my 2cents for what it worth.

 

JimC

Handling is what I want. The 275's SAI is proposing for the rear are 27.7 inches tall as compared to 27" for the stock. The suspension lowers the car 1.25" from stock. So SAI is lowering the rear .55" and the front (27.2 proposed vesus 27" stock) = 1.05" lower. Ford designed the suspension to have equal lowering front and rear this is being altered by SAI. The 295's I am proposing NOT 305's are 27" tall as per the stock ride height which will lower the car 1.25" in the rear and still use the SAI fronts (I am still talking Pirelli PZero's) which lowers the front as stated before 1.05". This setup is much closer to the FRPP design height. Also the use of an adjustable panhard bar or better yet a watts linkage (As Saleen uses) will improve the handling in either case because it will correct the rear shift that occurs when the car is lowered. The watts also keeps the rear centered over bumps. This will further improve the handling. The 275's have a 1/2" narrower section width than stock and the 295's have .2" wider section width over stock = better tire patch = better handling. Bottom line is these 295's were not available when SAI picked the 275's (which by the way Carroll himself said he was looking for a stickier tire). They are available now and should be tested by SAI. I Bet they improve all catagories you mentioned over the 275's. Otherwise we will have the narrowest tires on the rear of any car in our class.

[JimC]

Handling is what I want. The 275's SAI is proposing for the rear are 27.7 inches tall as compared to 27" for the stock. The suspension lowers the car 1.25" from stock. So SAI is lowering the rear .55" and the front (27.2 proposed vesus 27" stock) = 1.05" lower. Ford designed the suspension to have equal lowering front and rear this is being altered by SAI. The 295's I am proposing NOT 305's

 

Where did I get the 305's from. Must be five o'clock some where its time for a beer.

I like the suspension part. Do you think the Watts is better then the FAYS2 set up?

And thats what Im taking about better sespension, so we are at least on the same page.

[cobraengineer07]

SS_Suspension_Comparisson.htmI did some research on the 2 suspension choices that have been offered by SAI and created a chart. Note that FRPP and Eibach designed and tuned these suspension with the stock 27" tall tires from Goodyear. It is interesting to see what happens to the ride heights front and rear with the 2 possible SS suspensions and different tires. I believe the stock rear ride height is already too high compared with the front so I would not want to lower the front more than the rear. Both FRPP and Eibach did not intend to either with their designs.

 

Here's my chart with an alternate Pirelli for the rear to bring the ride heights closer to what the suspension designers tested with:

SS_Suspension_Comparisson.htm

SS_Suspension_Comparisson.htm

[JimC]

SS_Suspension_Comparisson.htmI did some research on the 2 suspension choices that have been offered by SAI and created a chart. Note that FRPP and Eibach designed and tuned these suspension with the stock 27" tall tires from Goodyear. It is interesting to see what happens to the ride heights front and rear with the 2 possible SS suspensions and different tires. I believe the stock rear ride height is already too high compared with the front so I would not want to lower the front more than the rear. Both FRPP and Eibach did not intend to either with their designs.

 

Here's my chart with an alternate Pirelli for the rear to bring the ride heights closer to what the suspension designers tested with:

SS_Suspension_Comparisson.htm

Very nice.

Thank you.

JimC

[EUSMCBOB]

I plan on driving my SS during the good weather (5-8 months), and will accept whatever tires SAI puts on, for starters. As it gets close to tire replacement time, I'll be compiling everything I've read on the forums, as to experiences with tires and suspension. As the car won't be just stored in a garage, nor raced, I expect to go through many sets over the lifetime of the car (and me). At a grand a pop, I can't afford the widest, stickiest ones available, but I don't want the hardest compound either. There may be a number of sizes/compounds used over the years. They may be considerably more expensive than gas... Yikes!

 

While the difference in tire cost, from one to the other, may be minimal compared to $28,000 the total tire cost is not.

IT'S GOOD TO SEE SOMEONE WHO PLANS TO DRIVE AS MUCH AS I DO. DO YOU HAVE ANY CONCERN ON GROUND CLEARENCE WITH YOUR DRIVING THAT MUCH? ARE YOU GOING 605 OR 700+.

[EUSMCBOB]

SS_Suspension_Comparisson.htmI did some research on the 2 suspension choices that have been offered by SAI and created a chart. Note that FRPP and Eibach designed and tuned these suspension with the stock 27" tall tires from Goodyear. It is interesting to see what happens to the ride heights front and rear with the 2 possible SS suspensions and different tires. I believe the stock rear ride height is already too high compared with the front so I would not want to lower the front more than the rear. Both FRPP and Eibach did not intend to either with their designs.

 

Here's my chart with an alternate Pirelli for the rear to bring the ride heights closer to what the suspension designers tested with:

SS_Suspension_Comparisson.htm

YOU GUYS ARE SOMETHING ELSE.

GREAT INFORMATION.

THANKS FOR SHARING.

[Vogon]

IT'S GOOD TO SEE SOMEONE WHO PLANS TO DRIVE AS MUCH AS I DO. DO YOU HAVE ANY CONCERN ON GROUND CLEARENCE WITH YOUR DRIVING THAT MUCH? ARE YOU GOING 605 OR 700+.

Many members have lowered their cars, and I've had the overall impression that they're much happier with the ride. More care is needed for frost heaves, speed bumps, and the curb getting in the driveway, but better driving. I'm not worried...

[alghanim]

[to every one

If you check with latest shelby catalog it showing the Recommended tire size for

Alcoa GT500 wheels:

9” - 265/35 ZR20

10” - 285/35 ZR20

[n20civicb18]

 

305/35-20

[Joker45]

Is this on a SS that you guys are doing a conversion on?

 

Is this going to be the tires size that is put on the SS?

[n20civicb18]

No, No ha

 

That is actually David Tasca's car.

[Joker45]

No, No ha

 

That is actually David Tasca's car.

 

That's just mean! Teasing us like that :P

[Alexandros]

Can wider (10.5s-11.0s) be fitted in the rears?

[dmustang]

What size tires did you go with on the front for Mr. Tasca's car? :beerchug:

[n20civicb18]

Too small, I dont even want to say lol

[dmustang]

Give me something to go on. Have you lowered the car?

[dmustang]

:unsure: P-Zeros?

[GT500-07]

Bump