VQ37VHR Max HP/Torque

phunk

really old thread... these days 600+ is rather common. I ended up taking mine to 671. We have another car here that made 701. Lots of my customers are in the 600s.

I would never promise anyone that 600+ will be reliable. But it turns out, it tends to be. But you really need to watch your torque... and try and ramp in the boost so you can make your HP numbers without having to bring the torque up too high.

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blueranger

What is your opinion on max torque for a stock block?

Not holding you to anything just looking for personal opinion

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Hotrodz

SOHO got over 700whp out theirs and phunk stated the torque killed it. They were just over 600 ft lbs! I think 560 ft lbs is about the limit for reliability. I am coming up on two years at 600 whp and near 500 ft lbs with no issues so far. I started tracking the car last year so we will see how long she will last being pouned!

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Elmo370z

Still on a stock block?

Hotrodz

Yup...700 has been a few times and generally the results are not good!

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phunk

If someone wants the best odds that it will last for at least a few years, probably 425-450 lb ft. Once approaching or crossing the 500 lb ft, the owner needs to be prepared for, or at least accepting of, the worst. Though I believe in most cases the VHR will handle 500-525 lb ft for a long time. But the operator must consider that mechanical wear and fatigue is cumulative and the effects of driving habits and operating conditions can exponentially accelerate the process.

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