GT350 Track Tire Options

Discussion in 'Brakes, Wheels and Tires' started by VoodooBoss, Jul 5, 2015.

  1. gleek48

    gleek48 Tapatalk User

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    Thanks Rick. Is there any aftermarket wheels that I can run this tire size without any spacers or is the setup you use the current best bet?
     
  2. VoodooBoss

    VoodooBoss Rick Moderator

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    If you want rotatable wheels like I'm using spacers will be needed. Stock or R CF wheels will work fine. The N4SM R spec wheels are also available but they have very tight caliper clearance for track use. Then there are custom wheels but the price goes way up.
     
  3. Bill Pemberton

    Bill Pemberton TMO Addict

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    Tight to the calipers , actually causing any problems, or just close like a lot of rims are on many of these new cars with huge rotors?
     
  4. blacksheep-1

    blacksheep-1 TMO Addict

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    Not really true, I usually se a 30 degree spread across the face of the tire that is handling at it's optimum
     
  5. VoodooBoss

    VoodooBoss Rick Moderator

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    Higher temps on the outside? I don't check temps very often as I'm not keeping lap times plus I'm kinda lazy. ::) I'm more concerned about wearing evenly.

    Another thing to consider about using the CC plates is steering feel. More camber typically sharpens up the steering and I can tell the difference on track and unfortunately on the street too.
     
  6. ChopSui

    ChopSui Mike

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    Found an article on the PSS replacement coming out.

    http://www.motorauthority.com/news/1108546_has-michelin-designed-a-better-tire-than-its-pilot-super-sport
     
  7. TRAC WPN

    TRAC WPN TMO Beginner

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    Hi guys, my r spec wheels are almost here and its almost time to buy some track tires. I've been reading over the numerous tires post but was still hoping for some advice, hope its ok to ask here as I didn't want to start another post.

    Here are a few facts that may impact your recommendations.
    1. I decided to go 305/30/19 all around
    2. I will be setting the front camber to 1.8 as I will not be adjusting camber settings between track and street.
    3. I do not compete in timed trials, so I don't want the most expensive tires, however I still want improved grip over the PSS as I found them to get greasy quickly.
    4. I do 3 track(lapping) days a season, and a typical track day consists of 6-8 (7 minute ) sessions, so a lot of heat cycling I believe.
    5. I need to drive about 100kms to get to the track, so full slicks are out.

    I have been going back and forth trying to decide between the RE71 and the MSP2, with leaning towards the RE71 mostly due to cost here in Canada. But just yesterday the Trofeo R caught my attention, as I found a local deal on them thats less than $100 difference more for the set than the RE71s, and $500 less than the MPSC2s. Kind of want to give the Trofeos a try since the deal may not last and they always been out of my price range.

    What do you guys think? Sorry for the long question, maybe I should have made a new post. All input greatly appreciated, Thank you.
     
  8. VoodooBoss

    VoodooBoss Rick Moderator

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    @TRAC WPN welcome to TMO. If you can wait a bit longer the new Michelin PS4S should be out soon and it's another tire to consider. I suspect you need a tire that works in the wet but if not also consider the Nitto NT01. TMO is a Tire Rack affiliate so if you're going to order tires from them please support TMO by clicking on the ad above when you purchase your tires.

    Both TRAC WPN and TRAK WPN plates were taken here in California so I had to get creative. ;D

    [​IMG]
     
  9. TRAC WPN

    TRAC WPN TMO Beginner

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    @voodooboss thanks for the welcome, I was lucky here in Ontario TRAC WPN was open. I don't care about wet performance as I only track on nice days, and if I get caught in the rain I will manage to get home. I will stick to the pss for street use. I heard about the ps4, but I doubt they will equal on track performance of the RE71, I may be wrong tough.
     
  10. JAJ

    JAJ TMO Intermediate

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    If that's a 7 minute session every 45 minutes to an hour, then something isn't quite making sense to me. When I go out, by the time I'm at seven minutes, I'm on my third lap of a 20 minute session and the brakes and tires are nicely warmed up and I'm getting solid performance. What I'm hearing from you is that by seven minutes, your tires are overheated and losing grip. I didn't think the MPSS's were that sensitive to heat. What am I missing? Is this more like an autocross course with lots of tight turns linked by short straights? For sure that'll heat the tires up fast. Brakes too. If that's the type of driving you're doing, then you really need a good autocross tire.

    That said, if I could get Trofeo R's for less than the US-made Sport Cups, I'd just buy them. They are great tires. You have to manage the pressures, though. They're designed to run 29PSI hot.
     
  11. TRAC WPN

    TRAC WPN TMO Beginner

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    Yes the track is not very tire and brake friendly. A big section, like close to half of the track is very tight, comparable to auto cross. This section is done 95% in second gear. But to be fair to the pss tires, I definitely over drove them in my RCF. Next time around I will be a lot smoother and gentle through that section, and try to have more fun through the faster part of the track.
     
  12. TRAC WPN

    TRAC WPN TMO Beginner

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    Picked up the Trofeos today, at $363CAD each I had to give them a try, will report after I try them out on the track
     
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  13. Bill Dick

    Bill Dick TMO Beginner

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    Trac Weapon from Ontario have you had an opportunity to try your new Pirelli Trofeos yet? I am from Vancouver BC and am looking for options for a second set of wheels and tires for my GT350 for Auto-X and track days. Any suggestions?
     
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  14. TRAC WPN

    TRAC WPN TMO Beginner

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    Hopefully will try them out this Sunday, and report back
     
  15. Bill Dick

    Bill Dick TMO Beginner

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  16. Bill Dick

    Bill Dick TMO Beginner

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    TRAC WPN, Thank you for your reply. Looking forward to your post. Which wheels are you using for your Trofeos?
     
  17. TRAC WPN

    TRAC WPN TMO Beginner

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    Using the project 6 gr wheels in R specs, love the look and price
     
  18. TRAC WPN

    TRAC WPN TMO Beginner

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    So I went to the track for the first time with my GT350. I just want to first say that I do not have a reference point tire wise on the GT350, as well as I don't own a tire temp. probe, so my tire impressions are what they are.

    Tires used 4 X 305/30/19 Trofeo R mounted on project 6 GR in R specs.
    Started 28PSI cold, and felt a littles slippery first 1.5-2 laps (3kms/lap). The tires build up some pressure and they stick. On my home track (Toronto Motorsport) very tight and not tire friendly track, I found the Trofeos worked best at a 31-33psi Hot range. At 30psi and 34psi there is a small drop off in grip, at 35-36psi the slip was much more pronounced. Adjusted the pressures and all is well again. Found the steering to be very good and predictable, the nannies kicked in a few times when the PSI built up past the 30-34 range, but I admit my throttle application was mostly to blame. Camber settings were -1.8 front and -1.45 rear, and the tire wear wasn't too bad on the outside of the tires. Possibly they could use a bit more - camber, but I don't change my settings between the track/street, so happy with what it is.
    Thats about it, like I said these will become my point of reference, once they wear out I will probably try the RE71Rs, unless I can find a set of Trofeos/Sport cups2 for the same price.
    Just to add, the GT350 is by far the best car I took to the track(RCF,S2000) were the previous ones. The only upgrades I may consider in the future may be the R springs, not to say the stock ones felt weak.
     
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  19. VoodooBoss

    VoodooBoss Rick Moderator

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    Thanks for the review. The Trefeo R and PSC2's should be two of the best tires for the car if you are driving to and from the track. @Black Boss has posted that the PSC2's are close to the Hoosier R7's. I might try the Trefeo R for my next set of tires but if the PSC2's are still on sale I will buy another set of the Michelin's.
     
  20. Etchhead

    Etchhead TMO Intermediate

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    Great read and helpful. I'm new to the Ford, in fact it's still pending delivery (GT350R) and shows only one more
    Day on Ford website... I picked up some 6G R-specs as well and need to mount some good track tires.

    Reference I've had 7GT3 (NTs, slicks), Radical (slicks), 6TT NTs and am wondering how the PS2cups compare against NTs. People love the NTs, but after slicks- even used its hard to fall back in love with NTs.

    Hoosiers are ~$2k, while PSC2s are 1500. Are they better than NTs?
     
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