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The mkiv Supra Owners Club

3.4 2jz-gte


Davesoarer

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Hello

 

I am currently in the middle of building a 3.4 2JZ-GTE. I hope to be running 750bhp when it is up and running, I am wondering if a standard oil pump will be man enough for the job? If anyone could let me know if it is or not I would appreciate it

 

Many thanks

Dave

 

Seen supras running 850+ bhp with stock engine! just flown head

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That's a fairly low power output for a 3.4, how come you didn't stick with stock?

 

I'm guessing its stroked and not bored?

 

Stroked on a stock size bore makes it a 3.3 unless it had a 96mm stroke. I'm guessing it's more torque than top end power he's going for.

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Stock genuine Toyota oil pump, preferably a new one. Always remember: Those parts are up to 20 years worn out.

I rised the oil pressure a little bit at mine. Simply add a M6 washer to the pressure regulating spring, that adds 0.5 to 1 bar tho the oil pressure. You find it by opening the hexagonal screw at the upper side. Be aware of the pre loaded spring, when you unbolt !

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I will try and get pics up soon. It is bored as well as the HKS stroker kit. The only reason I will be running low bhp is because I only have the R154 box and I have been told they won't take alot of power, I am going to save for the V160 or V161 the hope to go for 1000bhp

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Im guessing the R154 won't take that much bhp. What sort of bhp can they take without breaking?

 

Proabably about 3/5ths of what a new one can, and WAY WAY below what a 3.4 stroker could hopefully put through it unless you fit Citroen 2CV back wheels and tyres. Totally unsuitable transmission.

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Strictly speaking Getrag would be horrified at what torque people put through the 6 speed Supra `box. All these big torque creations really need something beyond even the V160, torque handling wise. It's amazing some of them hang on as well as they seem to. Probably a lack of true traction.

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Strictly speaking Getrag would be horrified at what torque people put through the 6 speed Supra `box. All these big torque creations really need something beyond even the V160, torque handling wise. It's amazing some of them hang on as well as they seem to. Probably a lack of true traction.

 

This is true. If I recall, the Getrag V160/V161 boxes are rated to about 375lbft or so.

 

I wonder if anyone has used a T56 in a Supra before? They are rated a bit higher again.

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People with big budgets would be better looking at 5 speed boxes with much wider gear centres and wide gear tooth widths. To be honest these heady torque figures are really the realm of things like uprated Viper V10 transmissions, and the more exotic end of Hewland's in line race transmissions. The Hewlands are small, and should fit in a stock tunnel, but are strictly race only. Tractive were bringing out a high torque 5 speeder, not sure where that's at right now. If it were of the quality of my "normal" 5 speed Tractive sequential I would recommend it wholeheartedly.

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