Spoony Posted April 8, 2008 Share Posted April 8, 2008 hi we dont have glued tracks in germany. only normal asphalt. i need some traction for my greddy t78 6 speed supra. its an uk spec. which tyres would be the best choice? some one from titan motorsports told me i should take the stock 17" rims and get some et street radials, but they are not legal in germany anyways and i have to get them to the race in the back of the car. wouldnt 15" (with uk brakes on the back) with full slicks be better than these 17" street slicks?? or even 16" with jspec wheels? would be nice if someone could help me here Quote Link to comment Share on other sites More sharing options...
Fish Posted April 8, 2008 Share Posted April 8, 2008 15" will not fit with uk brakes mate - J'specs req'd. Quote Link to comment Share on other sites More sharing options...
Spoony Posted April 8, 2008 Author Share Posted April 8, 2008 sorry, i wanted to write jspec brakes not uk brakes on the back Quote Link to comment Share on other sites More sharing options...
Ian C Posted April 8, 2008 Share Posted April 8, 2008 I think suspension setup plays a big part in getting power down if you are going to focus on drag racing. Soft rear springs to absorb the weight shift and a positive camber setup so that you get zero camber at full acceleration and therefore the biggest tyre footprint. Of course it's nasty to drive normally like that -Ian Quote Link to comment Share on other sites More sharing options...
Spoony Posted April 9, 2008 Author Share Posted April 9, 2008 thanks ian is there a big grip difference between the 15 and 17" drag tyres? i could drive the 17" oem wheels with street slicks, its not allowed but they are not an eyecatcher for the police like 15 " drag radials Quote Link to comment Share on other sites More sharing options...
kylestt Posted April 9, 2008 Share Posted April 9, 2008 the more sidewall you have, the better the grip, so a 26" tall tire with a 15" rim will hook better than a 26" tire with a 17" rim. I run 26x11.50x16 on my supra and I'm not cutting 1.49 60ft times just on footbrake. Quote Link to comment Share on other sites More sharing options...
tDR Posted April 9, 2008 Share Posted April 9, 2008 I run 26x11.50x16 on my supra and I'm not cutting 1.49 60ft times just on footbrake. Hi Kyle, What do you mean not cutting? Is that your current best 60ft? Those are the kinda 60fts I want to be getting this season in my quest for all out standard j spec turbo domination at the drag strip!! Are those sizes you've written for tyres that fit on bogart drag wheels? What suspension are you running? I've so far been making the most of my current bad setup I inherited on my car, with my konis adjusted as soft as they can go on the rear but the car is far too low causing way too much negative camber and thus a somewhat compromised contact patch on the launch. From watching the last couple of TOTB DVD's I've been in, it squats pretty well but I really need a much better suspension setup (Chris Wilson is meant to be cooking something up for me in that area) with sensible ride heights and optimised geometry. I think I'll run M/T ET Street Radials as they are DOT approved road legal track style grooved soft tyres that seem to hook up well on Tarmac at Santa Pod raceway (in England) and on airfield surfaces such as Elvington where TOTB happens. Cheers, Brian. Quote Link to comment Share on other sites More sharing options...
Fish Posted April 10, 2008 Share Posted April 10, 2008 I think Kyle runs CCWs as a 16". You could get a 26x10.5 M/T radial on a 16" rx7 alloy Quote Link to comment Share on other sites More sharing options...
prosty Posted April 10, 2008 Share Posted April 10, 2008 Best for tarmac use imo is MT ET STREETS. Radial is legal on the road, then there are the dot approved but just a cut slick tyre which hook very good on prepped surfaces. Seen a guy in the states with a BPU supra, he had 1.55 60 foot time with 28" slick tyre, broke his driveshaft But that was on a prepped tack. I'm going with 16" MT ET STREET 11.5 wide for my Supra this year. These are 17" 275 45 "slicks" that I bought but sold off pretty quick. But they are good for normal asphalt. I however will be going with my car to a prepped track. These can be used with or without burnout, if you do a burnout just do it for a a few short seconds to clean the tyre and leave some rubber on the pavement. http://www.rackeltrim.se/Supra/slicks.jpg Looking for 1.6x 60-feet times with the 16's. Quote Link to comment Share on other sites More sharing options...
Ian C Posted April 10, 2008 Share Posted April 10, 2008 thanks ian is there a big grip difference between the 15 and 17" drag tyres? i could drive the 17" oem wheels with street slicks, its not allowed but they are not an eyecatcher for the police like 15 " drag radials Don't ask me I'm terrible at drag racing Thats just stuff that I remember reading or being told that sounded logical I've always had street tyres, rock hard suspension, mechanical sympathy, and I've never done a burnout in my life - which explains why I can't so a quarter mile faster than 12.7s heh Quote Link to comment Share on other sites More sharing options...
prosty Posted April 10, 2008 Share Posted April 10, 2008 The more the tyre can flex , the more it reduces stress on the driveline (like a spring) and it also allows the tyre to grip more, a stiff tyre just spin, a tyre with lower pressure and more rubber grips better. But handles like crap and the ride is like a boat. For streetability I would go with the tyres I had on the picture I attached above. Quote Link to comment Share on other sites More sharing options...
Ian C Posted April 10, 2008 Share Posted April 10, 2008 I did a trackday with exactly those rims and tyres on the back of mine once, due to one of my end-of-life P0's deforming on the way there. Fantastic grip wear rate was shocking -Ian Quote Link to comment Share on other sites More sharing options...
kylestt Posted April 10, 2008 Share Posted April 10, 2008 Sorry, i AM cutting 1.49 60ft times, typo Also the transmission plays a HUGE roll. The supra and the IRS with a manual gearbox is NOT very healthy on the driveline with Radial tires. They can tend to wheel hop and snap parts in half. I prefer the slick with a bias ply sidewall over a radial in a heartbeat. and yes i run the CCW 16" drag package and LOVE it Quote Link to comment Share on other sites More sharing options...
bolarbag Posted April 10, 2008 Share Posted April 10, 2008 I think suspension setup plays a big part in getting power down if you are going to focus on drag racing. Soft rear springs to absorb the weight shift and a positive camber setup so that you get zero camber at full acceleration and therefore the biggest tyre footprint. I have HKS Drag suspension, they maybe be useful to someone that can set them up right, I'm not too interested in drag racing hence why I'm selling I dont really notice the squat, but I had 19inch wheels before Quote Link to comment Share on other sites More sharing options...
Spoony Posted May 8, 2008 Author Share Posted May 8, 2008 which size may this be?? http://karel.whost.se/foto/eso-4/eso4-14.JPG http://karel.whost.se/foto/eso-4/eso4-19.JPG Quote Link to comment Share on other sites More sharing options...
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