Tires for Whipple setup

[VTR16]

Ok so im in need of some help from current FI guys. Ive read plenty and can't quite make a decision on what route to go so I figured id get some feedback from everyone on here. I have a Gen 3 Stage 2 Whipple and the McLeod RST/steel flywheel w their line on order from Beefcake. I don't want to switch out wheels at the moment so I want to keep the 19X9.5 PP in the rear. I don't trust the MT82 to last for too long so ill be keeping the 3.73 in the diff because I plan on moving over to the Magnum XL once it blows and just have McLeod rebuild the clutch for the XL.

I think my initial approach right now is to just switch out the rear tires and eventually move them to the front and then go with something a bit wider in the rear but not right now. I know width isn't everything which is why I don't want anything less than a 35 sidewall. I will be running the Whipple calibration at first then moving over the a Fore Level 2 on E85 so I'm really trying to think a couple steps ahead for this build. Im open to all kinds of feedback on the entire setup but posting here because tires are the current question. I don't think anything wider than a 285 on the 9.5 would really work but I'm open to any feedback and insight you guys have. My current mods are in my signature so...try not to flame me too bad lol

A 285/35R19 on the PP 19X9.5 is my current idea but can't decide on tire.

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[VTR16]

My intentions with the car will be no drag strip runs and just some spirited hwy driving. Possibly a Half Mile event. I don’t drive the car every day either. Every few days and my commute to work and back is barely a mile one way and it’s in a dtown area.

 

[ahl395]

One important piece of info is what kind of tires you want to go with. All Season or Summer?

Summer tires will be stickier and provide better traction in warmer weather. I would go with a quality summer tire like the MPSS or MP4S. I got 22k miles out of my rear MPSS and they had excellent grip. They were even okay down in the mid 30's but I wouldn't trust them any lower than that. MPSS get my recommendation hands down though, and are the best tire you could put on there for a street driven FI car.

An A/S tire will do better in the cold but since you're in Texas I'm guessing that's not much of a concern. If you want to I would go with Pilot Sport A/S or Continental DWS06. They won't be as good as the MPSS though.

I would do a 285/35 in the rear and a 255 or 265/35 up front. I would upgrade both sets at once you don't want to only do rears and have the fronts a completely different type of tire. Will hurt the car's handling.

 

[VTR16]

Yea summer tires here are just fine. I’m really open to all types of suggestions. I haven’t seen too many guys running the R888R. Any reason for that? Any suggestions of what tire to completely avoid? Besides the PZero lol

 

[ahl395]

Yea summer tires here are just fine. I’m really open to all types of suggestions. I haven’t seen too many guys running the R888R. Any reason for that? Any suggestions of what tire to completely avoid? Besides the PZero lol

R888R are a drag tire I believe, drag radials will give much better traction on dry warm pavement, but arent the best choice for a street car for most people. Most wont last longer than a few thousand miles and do very poorly in the rain.

 

[gqneon]

Granted I’m running a 20” wheel but I will tell you even a 305 555 vs a 305 555R is night and day difference. For the track I take my 17” MT street R’s but that’s pretty rare. Width helps but the compound matters more, IMHO.

 

[Nomadic]

I have a 15 PP and whipple S2 as well and stock tire size. I put Firehawk Indy 500s on about 2 months ago. Those along with the BMR cradle lockout and the car is much more composed off the line. I haven't truly hammered from a dead stop yet but I'm guessing nothing is going to lock the rear end down totally with that kind of hp/3.73s.

But like you I just drive spiritedly on the street, work from home, so I drive it mostly weekends.

 

[VTR16]

Thanks for that!!
The 555 G2’s seem to be a solid price but everyone has their own opinion and experience. Any FI guys running these?.

 

[BmacIL]

Thanks for that!!
The 555 G2’s seem to be a solid price but everyone has their own opinion and experience. Any FI guys running these?.

I think you'd be disappointed. PSS, PS4S or Indy 500 if you don't want to daily a drag radial.

 

[VTR16]

If I were to daily a drag radial...suggestions?

 

[BmacIL]

If I were to daily a drag radial...suggestions?

MT ET Street SS, NT555R. NT05R is too much like a slick. Bridgestone RE71Rs would be good too, as they're designed to heat up fast as an autocross tire.

 

[moffetts]

Thanks for that!!
The 555 G2’s seem to be a solid price but everyone has their own opinion and experience. Any FI guys running these?.

Yep, and I absolutely roast them.

 

[808muscle]

So it would seem the stickest summer tires thats NOT a drag radial would be in order:
Michelin Pilot super sport
Nitto 555 G2

https://www.tirerack.com/tires/tire...eModel=Pilot+Super+Sport&partnum=03YR0PSSXLV2

Or is their a better option? My 305/35/20 MT sport comps blow dog, absolutely worthless to the point of dangerous with the whipple on my car. Trying to avoid a drag radial as I drive in the rain at times living on Maui.

 

[keltymd]

Continental extreme contact sport would be good from what I have read. I have the 555G2 and they suck even when hot with my gen3 st2 whipple I can break them at will at 60 in 4th even after 20-30 minutes of driving.

 

[RockStang]

You will need a DR if you want any hope for traction before 3rd gear. I run 555r but I still spin those through 2nd unless I'm rolling into the throttle. Also depends on the mileage you are expecting to get. 555Rs will last a few season if you try to track them. If you won't drive in the rain I'd go with something sticker like a NOT05r but those won't last more than 2 seasons.

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