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Thread: 1300 Kg Track SUPRA project

  1. #1
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    Default 1300 Kg to 1100kg Track SUPRA project

    Hello everybody!
    I like to show my Spanish Supra

    I am trying to get 1300 kg (2870 lb) on a race ready Supra (FIA homologated street legal) with all the safety parts included, because without the roll cage for example I am under that weight.

    Like the part list is to big, if anybody want to know something, please live a question and i will try to answer as soon as I can.

    I dont know the actual weight of the car because I am changing parts close to everyday! but 1 month ago it weigh 1350 kg with street wheels and stock w154 gearbox, I have a race wheels with are like a 20 kg less.

    many years ago



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    new proyect
    that is the electric stireeng pump




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    firs try on a closed track

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    that one is a photoshop picture with the race wheel I am waiting.
    The tire size for race: front slick 265/660/18 on a 10" rim and rear slick 285/660/18 on a 11" rim
    Road wheels are Rota wheels 8,5 and 9,5 with 245 and 285 R888 Toyos tyres
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    Last edited by josbeat; May 21st, 2017 at 09:46 AM.

  2. #2
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    Default Re: 1300 Kg Track SUPRA proyect

    Wow thats a crazy build. Quaife transmission, wow my first ever on a supra. I bet that thing will last a few runs =)
    Good luck on the build!

    suprafredde

  3. #3
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    Default Re: 1300 Kg Track SUPRA proyect

    Quote Originally Posted by suprafredde View Post
    Wow thats a crazy build. Quaife transmission, wow my first ever on a supra. I bet that thing will last a few runs =)
    Good luck on the build!

    suprafredde
    I hope more than few runs jejeje
    it is a QBE69G long endurance geabox rated at 750 Hp

  4. #4
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    Default Re: 1300 Kg Track SUPRA proyect

    Awesome build. Good to see another mk3 track car

  5. #5
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    Default Re: 1300 Kg Track SUPRA proyect

    awesome build mate! very inspiring. Just out of interest, does it actually weigh 1300kg or is this an estimate? What sort of motorsport/competition are you participating in? Also, I didnt realise that bolt-in roll cages could be FIA approved! keep up the good work, i'm sure there aren't many A70s in Spain, i certainly didnt see any Japanese cars at all last time I was there...

    I would be interested to know what sort of brakes you are using on the front. I can see your rear brakes are still stock, what pads are you using back there?

    1990 JZA70 Track/Weekender:
    2012 GT-86 daily driver coming soon!

  6. #6
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    Default Re: 1300 Kg Track SUPRA proyect

    Quote Originally Posted by spiller View Post
    awesome build mate! very inspiring. Just out of interest, does it actually weigh 1300kg or is this an estimate? What sort of motorsport/competition are you participating in? Also, I didnt realise that bolt-in roll cages could be FIA approved! keep up the good work, i'm sure there aren't many A70s in Spain, i certainly didnt see any Japanese cars at all last time I was there...

    I would be interested to know what sort of brakes you are using on the front. I can see your rear brakes are still stock, what pads are you using back there?
    Thanks! Supra friends jeje

    look Spiller, the weigh two month ago was 1350 kg exactly, with street wheels (730 F and 620 R)
    I want to get 1300 kg with Track wheels

    my front brakes are the firts14 " Big brake made by Precision Brake with 6 pots callipers
    http://www.toyota-supra.info/forums/...group-buy.html



    I am using Porterfield racing pads on front and R4 compound at the rears but just tomorrow I will fit a new rear Brakes from Arizona Performance with BP20 compound pads
    before I was using Performancefritions pads but I prefer the portelfield ones.

    About he roll cage , it is a Cusco one and really really it is not totally legal for FIA anexo J rules but for our old cars they look to another side jejeje , it is not conform for just one small detail but for the rest yes , so the give me the OK.

    I will try to do all Time Attack I can plus some regionals small chronoed rallys and some closed tracks races, but only regionals not nationals, on some of those competitions I will be outside the prices because the engine is not conform with the rules (big turbo jejeje ) But just for funny.
    I have a plane of take a trailer and moving arround some European tacks next year... will see if is possible jejeje

    and yes we have also a Supra Forum here in Spanish and regulars meeting! jeje here we are many supra-adicteds jeje

    look here the new rear brakes , it is with out hand brake so I am modifing the stock hand brake stick to use with and hydraulic pump inline to the rear brakes



    Last edited by josbeat; July 9th, 2011 at 02:15 PM.

  7. #7
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    Default Re: 1300 Kg Track SUPRA proyect

    I now how to get 1300 kg...... just buying a set of plexiglass from Japan (I found a companny there who have it , doors, corners and back one) but maybe at the end of the projet.
    Last edited by josbeat; May 21st, 2011 at 01:16 AM.

  8. #8
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    Default Re: 1300 Kg Track SUPRA proyect


  9. #9
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    Default Re: 1300 Kg Track SUPRA proyect

    thanks for the info josbeat. I have the Arizona Performance Wilwod 4 pot kit at the front of my car (which is similar to your precision kit I guess but 13" rotors). I'm actually looking into some brake pads for the track at the moment and was looking at Performance Friction PFC-06. Which PF compound were you using in the front? Also how did the R4 in the stock rear match up with the bias? Are you using a proportioning valve? I'm not familiar with R4 brakes. sorry for all of the questions!

    btw sounds awesome in that video!

    1990 JZA70 Track/Weekender:
    2012 GT-86 daily driver coming soon!

  10. #10
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    Default Re: 1300 Kg Track SUPRA proyect

    the R4 is a Portelfield R4 race compound and they have for stock Supra rear callipers

    yes i have a wilwood proportioning valve for the rear but with my 14" 6 pots i have it setted at full power at the back jejeje like no bias.

    the Portelfield front compound now i am using is the R11 full race compound

    before if i remember well was the Performance Frictions 01? compound , i will check but was the full race they had 5 years ago
    believe me the best allways is the full race compound because they will brake well on public road (cold) and on a closed track (very hot, same! but it have two problem.... the dust and the rotors wear.

    also I had before a bigger master pump , the stock one is 25 mm and I changed it for 30 mm one totally plug and play. now I am using a pedal box with independent pumps.
    regards
    Last edited by josbeat; May 21st, 2011 at 01:24 PM.

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