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The mkiv Supra Owners Club

My supra Twin turbo


Guest Xabin

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I whant just to show my built supra Twin Turbo one of a kind.. The car is Built by me on JC-performance.se and Pipedreams have done the welding..

 

Engien spec

 

*AEM ECU

*HKS DLI

*RC 1000cc

*Turbo IRX 450 x2

*BC valvesprings

*CP pistons

*Eagel rod

*RPS flywheel

*HPF clutchkit

*Crower 300ex 276inta

 

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Daston:Got to say its different. How does it compair to say HKS twins or a well set up single?

 

I have´t test any singel supra or HKS,BLitz twin kitt but this turbo kitt are much larger turbos and hybrids :)..

 

tooquicktostop:Any power info yet, interesting looking engine bay, shame about the dirty

seats and carpet

 

Not yet but its coming.. I´am going to fix that to still working on the engien :)

 

JamieP:Interesting, has it run yet? looks like the silicon pipe for the top turbo is sitting on the hotside of the bottom turbo?

 

 

I have test the around the where a live so not much strip och higway test yet.. Thats true you say its WHERY close but i have i heat resisted it whit half pipe thate covers the half silicone hose..

 

Whit this set i´am going to run in AFR around 13,2-13,8 in full throttel thats is where rare..

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I must runs so lean becuse of the turbos working at there beast.. This turbos are not like Garret for exampel when you should run in 12-12,5 at full. These turbos har so great flow so thats way i can run so lean and EGT is 850c(1562F) and the boost now are 1bar (14,5psi) my taget in the boost are 2 bar (29psi) or bigger turbos i have lookt att KX600 turbos..

 

Littel spec on the IRX 450 turbo

 

inducer diameter 58,5 mm

backwheel diameter 82,0 mm

Turbinewheel Exducer diameter 58,0 mm

wastegate hole 33,0 mm

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Why do different turbos allow you to run lean, all they do is produce a volume of air, this needs to be mixed with fuel to generate power.

 

Its the combustion process that generates the EGT and dictates AFR, the turbo are just a means of delivering air.

 

 

Please provide more info as I am a little confused.

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The differens betwen the turbos are how good thay move away the exhaust and how great flow the have on the EX side thats what i have been told from them ho have built the turbos.. I hope thats anwser your question :)

 

I´am runnig on 98octane

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will watch this one just out of interest but i cant help but think its going to end with a broken supra. 13.8:1 at wot in a turbo motor is pretty bad. Even if your turbos are the most efficient turbo's in the world it doesn't change the fact that the combustion temperatures are going to be very very high. Whether you get 13.8:1 from a turbo or from nitrous its still 13.8:1, thats more than most people run normally aspirated never mind turbo. good luck though.

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