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Discussion Starter #1
Guys, need some advice
Power - ~700whp
Fuel - e85
Transmission - manual
Motor - completely stock unopened 2jz vvti, 264 drop in cams

I've been reading everywhere that the 2jz is capable of handling 800whp "unopened", and in some cases more, but to hold reliably all day everyday, 800whp
Is that 800whp with ppl upgrading the head studs and head gasket or is it legitimately standard studs, standard head gasket?

I'm currently doing a 2jz conversion with a power goal of ~700whp and wanted to know if I needed to 'upgrade' anything to be able to handle this reliably all day every day or am I just fine slapping the turbo and cams in and away I go? [will be looking to do the major toyota service kit work - timing belt, oil and water pumps etc]

Thanks for the advice guys
 

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Cardinals!
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It's not relevant to look at whp. How much torque and how low will it be in the powerband? That's what matters, not some nebulous whp number that is simply a result of torque and rpm.

Forget what you've been reading about 800whp "unopened" and start reading recent posts about what turbo and powerband you're looking to emulate.
 

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Discussion Starter #3
It's not relevant to look at whp. How much torque and how low will it be in the powerband? That's what matters, not some nebulous whp number that is simply a result of torque and rpm.

Forget what you've been reading about 800whp "unopened" and start reading recent posts about what turbo and powerband you're looking to emulate.
I'm looking at either using a gen2 6062 or gtx3582r

More or less just wanting to know if I need to change head gasket and head studs or will I be ok?
 

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Reverend Hillclimb
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I'm looking at either using a gen2 6062 or gtx3582r

More or less just wanting to know if I need to change head gasket and head studs or will I be ok?
The smaller turbos like the 6062, will probably hit the torque curve haaaard.
Even low power high torque cars can bend rods.
If you are going to be driving the car hard honestly with a small turbo like that I would preferrably build the block.
 

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Just quick food for thought... Aren't the vvti blocks weaker due to having lighter thinner rods like the late model 1uz vvti blocks?
 

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Discussion Starter #6
I'm looking at either using a gen2 6062 or gtx3582r

More or less just wanting to know if I need to change head gasket and head studs or will I be ok?
The smaller turbos like the 6062, will probably hit the torque curve haaaard.
Even low power high torque cars can bend rods.
If you are going to be driving the car hard honestly with a small turbo like that I would preferrably build the block.
If that's the case, I should have gone with a rb26 conversion for my s chassis and save money on conversion parts lol
 

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I ran a stock bottom end with a 6466 at 700whp/600wtq all summer last year, 10,000kms of abuse. Only mod more than you is upgraded valve springs and retainers. When i built the bottom end this year, i found pistons, rods and bearings like new.

With small turbo like the 6062 you will be fine at 700. Getting a good tuner that can shift the TQ curve to the right would give you some peace of mind.

Ryan
 

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I ran a stock bottom end with a 6466 at 700whp/600wtq all summer last year, 10,000kms of abuse. Only mod more than you is upgraded valve springs and retainers. When i built the bottom end this year, i found pistons, rods and bearings like new.

With small turbo like the 6062 you will be fine at 700. Getting a good tuner that can shift the TQ curve to the right would give you some peace of mind.

Ryan


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