Im in the process of picking up my new truck, since i FINALLY sold my subaru, so its time to get serious with my supra... Im debating on a few options, and everyone on sf.com has beaten these questions to death, so no one ever gives a reasonable response, only do as you wish, get it over with things... so if i may... Im looking at "de kitting" the supra, i bought it that way, but i may rip it off, get some huge brakes, good suspension, and some different track wheels, and tracking the shit out of the car, i.e. tiny turbo 57 or 61 and that is it... or going with an all out "street" setup, something moderate like a PTE71 gtq ho housing etc... with the necessary anti surge cover for the wicked scream and 400 rpm loss in spool, just to be sure it doesnt surge on pump gas... i may go bigger, but if i go that route it will be strictly for powerband, like rev to 9k, big intake manifold, big injectors, and perhaps some spray, or go to a tiny turbo, spool super fast, and make a road race car out of my land yacht toyota... i dont care to much about streetability, cams that are violent arent a problem rolling burnouts wont be either, as i plan on buying a racelogic traction control setup that im trying to find out if it works in conjunction with an AEM ems or not... nevertheless, any inputs, suggestions, ideas, or idiotic comments welcome, im just trying to get a few ideas to tip me in a direction...


thanks
Mark

 

If you are looking to build a road race car, I would post the question in the SF road race/autox forum. You won't get stupid answers and big egos there, it is a very mature and knowledgeable crowd there.
In my opinion, I say set it up for road racing! Small turbo and big brakes would be nice. Add a good set of coilovers, racing alignment, and some CCWs w/race rubber and you would have one seriously fast track car.

 

big turbo's are fuuuunnnn

 

AEM has traction control standard.. why not use it? Also, why would pump gas cause you to surge? Surging means your FI system needs some reworking, either unproperly chosen turbine, or piping that cuts too hard. Or the waste gate just dosent open enough to control it. I've also seen lots of single turbo supras that need proper blowoff's like a greddy type R or at least 2 HKS SSQ's and they only have 1 normal BOV ( single SSQ or something) and they stall.

Now away from the annoying questions.

I really hope you can get another road racing supra out there. Its a REAL rarity to see a supra on a circut in america. GOOD LUCK, I honestly mean that, I'm rootin for you!

 

get a moderate sized turbo and do both 500-600 whp, perhaps? good suspension stuffs and you'll be set

 

I understand aem had some provisions, but ive heard everyone doesnt want to use it.... they have problems getting it to function well, without killing power and or not stopping spin.. enough on that, ive also heard the BL71GTQ surges frequently on pump gassable boost levels with a good fuel system, twin stock pumps, 2 feed, 1 return and a set of 1000cc injectors. Im not sure why, but i suppose it builds boost quickly enough to do some damage at 18 psi - granted this seems to be people with cams and some head work as well! I have a tial 50mm bov, and plan on adding another for good measure on the other side of the intercoooler piping when i get a chance Wastegates are typically very good, HKS GT2 gates, 60 mm gates, used on 1000hp cars that see little to no spike or creep. Lots of the turbo kits do take a sharp 90 right out of the compressor, but thats the easiest for routing, and seems the most common... Surging seems to happen on a lot of the moderate turbos, from 67's to 74's from what i hear, although im not sure i hear too many people with problems on the larger side of things...

thanks for all the input, ill let you guys know whats going down then

 

i would do a moderate build up for track use. some where around 500 or so at the wheels. and if you need more on the street there's always a 50 shot. i love road racing and the supra is one of the best for that function so i would do: full adjustable suspension, 2 way diff, cage, big brakes or upgraded stockers. and a set of HKS twins to about 550hp or soo. i hate single turbo's. if it came with 2 it should have 2.

 

The hks twins kits are sized to produce quite a bit more than 550, and they spool slower and less linear than a smaller single that can produce 550, i.e. sp61.... i already have a roll cage + 4 pts. so saftey upgrades wont be too much an issue.. the brakes, well, the stockers are supposedly some of the best around! im not so sure who told me, but ive seen an article about them stopping the car better than an enzo from 60 and they actually held a record for production cars for the better part of the decade... the MKIV seems well setup, but i agree, i would need a better diff!

thanks
Mark

 

damn mark...didnt say any of this yesterday! lol...

looks like you got a good head on your shoulders as far as what you want to do...bottom line is what you want the car to do...once you decide on that youll have no problem picking out the neccessary components...and if ya need any help dont hesitate to ask me

the thing i noticed though...why is anyone saying spend BIG money on upgrading the brakes? the stock TT brakes rival the best BBKs in the world.... there is NO reason to upgrade or touch them...unless you are doing it for cosmetic reasons... there are multiple 1000hp plus supras running around with stock brakes...not because they cant afford a BBK but because the stock brakes ARE THAT GOOD.

just some food for thought...

 

That trim on your car looks awesome Jayson, whered you get it done? =P