All the number answers are in, just remember proper install and TUNE is the key when boosting.

Beyond the tune and installation the way its driven will play a big roll IMO. Constantly roll into boost at low RPM high load situations and I doubt the motor will last that long

....but that's my FAVORITE thing to do !!! :driving:

I agree it is fun! I find myself doing it as well but IMO this is the hardest thing on the motor. Torque kills. On flat ground is one thing but those guys who are pulling hills in 6th gear and like to get on the power without dropping a gear or two are on borrowed time IMO

I wouldn't be boosting in 6th anyway. It takes fractions of a second for a quick downshift to 4th.

June 2011 I did my install. Shortly after, I dyno'd 524hp/401tq rear wheel Dynojet. I turned up the boost just a tad within a couple weeks and was probably more like 540-550 / 410-425. Since, the car has been a daily driver minus a couple months for winter.

The end of summer 2013 I turned it up to 586/455.

I am not too comfortable with the power my car makes on the stock engine... so I try and stay off the dyno so that nothing reminds me. On the street, I forgot my worries and just drive it. On the dyno, I worry about it and get reluctant to push it. I was really close to doing a few more pulls to break the 600's, but I guess I decided with the traction issues it was hardly worth the risk.

I would also have to vote for 500rwhp or below with a mint install and tune, if you want to play it safe. If you dont mind a little risk, I would say 525-540. If you dont mind that it might blow up any second, 550-600!

Turbocharged 500whp on 100% bone stock engine. Supporting mods being injectors and pump, clutch/flywheel combo, and reflash. I dont imagine that you could get it to break unless the tune isnt quite right, or you hit fuel starvation too many times

Also, my reluctance to push it harder is SOLELY based on a limited number of data samples. I wouldn't be very surprised to learn that this engine can handle 650-675whp all day every day. We just havent had anyone try it yet. I dont think?

Most of us with a turbo kit are practically a turn of the knob away from the stock engine power record. I dont even know who has that "Record"... but to me records dont count for much when nobody else was trying anyway.

Tune, quality of parts and install are major players. Let's be honest, there are just plain STUPID tunes out there that blur the actual expectations of what this motor can do.

That being said, I would not reach for more than 500 ever on 91-93. Who knows when you hit a hot day, get a bad tank of gas and detonate the **** out of your car and it goes downhill.

Parting Shot: please, research ANY part you buy....there's parts that work and are designed to do so, and knock off crap that was made to make a buck. Do not let the latter into your engine bay, you WILL regret it!

Gluck!

I guess I do(record?), and I agree. It more than likely can(handle ~650), in the hands of a reliable tuner and topshelf parts. I just do not have the nutsack or find the need to run that day in and day out. I will have the 630whp tune in my back pocket for an odd 1/4 event.

Granted, I am putting together my parts for a built block and alpha turbo for 2015. SO by the end of the year, I may just attempt the daily 650 tune, with Seb@SZ's blessing, knowing full and well the built block is waiting...for science i guess.

I could of swore that there was a G37 that hit 650rwhp even before I installed my turbos? I could be wrong.

I think there was one in the 6xxWHP area but shortly after reaching that the owner built the block, will have to research it to find the results.
I think between your work on running long term high 500 and the recent up swing of kits from BP & FI we will see some real numbers pushed hopefully again. I know early on lots of TT owners hit 500whp and called it a day as it was safe and judging by the VQ35 just above their limit and still safe.

I can also agree, good kit (with supporting mods), install, and tune and the car can run for a long time. I am about to crack 75k miles while being boosted since 19k miles with a SC running 400whp. Taking care of the car and it will last and be a blast to drive everyday or just on the weekends.

There must be. The more, the merrier. Sadly. Z and G owners are not made of gold, but when we are, we just get GTRs...lol

Waiting on the R36 is burning a hole in my pocket.

I am very anxious to see what the next Z holds. If it comes from the factory with turbos... its going to turn into an extremely competitive market.

Or some traction...