Maxing out turbo potential
 

Currently running a single turbo BP kit on my 2016 370z nismo. It has plenty of supporting mods with fuel, air and clutch. Currently at 600whp with around 500ish torque. I know 600 is the sweet spot with anything over it’s blowing up, but I was curious to what exactly needs to be upgraded cause the tuner said there’s tons of potential left so I just want to see if it’s worth the $$$ to open the motor up and upgrade whatever needs to be done.

We provide several engine packages at BTWTuning. The most straightforward approach to increase power is by upgrading the rods and pistons. This modification should ensure reliability up to around 650 wtq or 800 whp. However, I advise against pushing beyond these levels on the VQ37 engine. We've done a few CSS blocks as well but haven't pushed them to the limits yet.

Potential? You need an entire new turbo kit. The amount of back pressure you will ensure, no matter what kind of money you throw at that build. If you’re tuner doesn’t suggest data logging back pressure/ coolant pressure then I suggest don’t go looking for power. You will be just like every other VQ here blowing up the motor.

What would you recommend?

Adding a back pressure sensor, and coolant sensor. Get rid of your small turbo and upgrade to something like 7675, 3.5 inch down pipe, and Incrwae the size of the manifold to 2.5 inch and upgrade your intercooler to a 4.5 inch core at the very least

At 16-17psi of boost the BP turbo kit starts to have back pressure/drive pressure issues. It's due to the exhaust manifold to turbo pipe size. It is also due to the stock headers themselves if you push the power up higher to 20psi of boost settings. The turbo size is also too small. At 17psi of boost with the BP kit the intercooler is not large enough. The IAT's go through the roof. 150+. So, the max safe whp you can make is around 650 to 700whp maybe. My friend tested all this. That's how I know. He has a custom turbo kit now.

It's a sad sight that all these VQ tuners have no idea what is what. My friend and I had to pay and do the testing to figure all of this out. Have the custom parts made and test again. We both couldn't afford to do it on our own so we each tested particular things. We split it between us. It wasn't cheap.

A lot of interesting theories here. I can tell you that the turbo manifold size is a non issue at up to 1,000HP so let's just get that out of the way. this is through proven dyno runs/testing.

Ideally, you want to go with a much larger turbo, like a 72 or 76mm compressor, with a similarly sized turbine wheel. This opens up the turbine restriction, greatly decreases EBP and in tern significantly lowers the IAT's.

Things to consider upgrading...intake, and downpipe, perhaps to 3.5". We now offer a 12" tall core FMIC which is a direct bolt on upgrade. That is something worth considering as well, if going up to this sort of a turbo size, to make a lot of power.

Like many kits on the market, the Boosted Performance kit is centered around covering 99% of the market demand. This is why the 6467 turbo is standard with the kit. It is capable of 700whp, with a mild engine build. We offer the TT kit as well, with turbos going up to 6265, which are rated at 825HP EACH!

Lordy mercy.

Someone was biting their tongue.

Heh.

Fixed it for you.

If the person who went through all the trouble decides to speaks on this matter it will confirm what I suggested to you. He is the only person to make a 1000whp not 1000hp again 1000whp on a mid mount kit and do it under 30 psi. He has all the data to back it up. You will blow your motor before maxing out the under sized turbo.