Rite, I am just trying to gauge if it is worth building my motor. I want to make a 9.5s car, but only if it can still be a comfortable street car and not too mental to be able to drive on the streets.

I heard BulliTT said that these cars chassis are not meant for over 700whp, it starts to become too violent and unbearable over that point. So if I can make a 9.5s Z with 700whp and still be a fairly comfortable street car, then I will go ahead with all the work required. Otherwise I will want to change to another modern platform that could do it more easily.

Just starting to do some research into this now, about to read your thread, but almighty 300+ pages.

With the right setup, 900whp is drivable. You will need at least 800whp to get in the 9's. Lots of stuff needs to be upgraded for the drag strip. The other question is, can you drive it? I know you have had issues before with traction. What scares some people does not scare others. It takes time in the seat to get comfortable. It's doable, the question is how bad do you want it?

BlueRanger made it into the 9's with an auto turbo car.

Pretty serious about it. I have some cash stowed away ready to throw at either building the Z more, so I can hit my goal of mid 9s,or sell Z and build new platform. I love the Z, but I don't want it to be to unusable if I can hit my target.

Also, if I am able to hit my goal, I would hope that the motor does not need a rebuild after each few passes, that would be a head ache to deal with too. So I want it to be able to handle the abuse, few pulls on a strip, then the rest on the streets on the weekends without worrying too much about the motor letting go.

Nice, thank you, I will try and reach out to this guy, check out his build etc.

Sell it. Only way you running 9.5 with 700whp is with a th400, powerglide of a Dct. And you have to hook like a bat out hel l. A guy in a 300zx ran 8.90 with a unopened motor making 780whp. But he cut a 1.2 60’ (th400).

Definitely the best idea, Zs aren't meant to be 9.5 second cars that you can daily aswell.. The GTR is there for that duty.

The money you will have invested into this platform to get to your mentioned goals both power wise, with reliability goals isn't gonna be worth it. The motor will be on the razors edge and something WILL go wrong eventually. Ask Spooler, who's went down this rabbit hole. Two things to note about if you choose to go down this path, be prepared to do A TON of research to educate yourself and plan ahead for the eventual next step. Two, and this is a big one, you WILL PAY for proprietary information. There are a handful of guys who have sunk $$$ into this goal, with "secret" information discovered/developed through their builds to get them somewhat "reliable". Cost of pushing the envelope and this information WILL NOT be given freely. You have to remember, this is a mass produced car with a mass produced engine. Can it be done, sure, there are a handful of guys who have gone into the "dark side of the moon", but most are lost to the void these days.

For your end goals, sell the car, get a R35 GTR (or whatever platform you deem appropriate for your goals AND can handle the abuse), kill tires and park it. Rinse and Repeat.

GR Supra is pretty easy to get to 9 seconds. Way easier platform to make power than the 370z. If you don't mind the looks/automatic. (manual coming next year?)

It's kind of comical how easy it is to make power on them. Folks are calling it the "next gtr" because it's filling that niche.

https://youtu.be/csp7zAWWvnk?t=640

But you'll need a 2020 model. Or be willing to reflash and swap in 2020 ECU somewhere in russia. iirc

All I can say is wait. One car is being put together now with an auto and he is a drag racer. Me, not so much at all. Wait and see how his car does. You will be dropping 50 to 60k for sure. Not going to lie, it is damn hard to get these things to live. The trans is the problem. Auto or manual. They both suck. Then, head lift. As was stated above, you will be fighting a loosing battle and developing the car on your own which is not cheap. I am trying to figure out what I am going to do myself. A VR38 swap is sounding good right now. The problem is I have to start over. Not sure if I am willing to do that.

Couldn’t agree with this more.

But if you want to attempt. Big big turbos, spray, and practice your 60’. Your tuner will be able to control torque better with bigger turbos and can use the spray to help Spool the turbo off the line and inbetween shifts. . Problem with 98% of anyone with these VQ’s is that they run to small
Of a turbo or turbos. Get yourself a 4.5 to 5 inch intercooler and let it eat. Cjm car ran high 9’s and could of gone faster. I believe the stock motor can handle 900whp ( for a short time) if you can manage the torque.

Stock motor handle 900whp? You have been hanging around Facebook too much.

Horsepower Doesn’t break motors. Running tiny turbos and making that kind of power isn’t the proper way to make 900whp. Will it last probably not long, but if you can make that power and manage torque and keep it around 550
To 600. It will
Be able to make
Several passes before letting go. Soho stock block last a year at 700ft/lbs before it
Shot a hole
Out the block.

Stock block and high HP.

Ok, so I gather from these comments that it's doable but not desirable on this chassis.


Ok fair enough I understand. It seems like if I wanted to go down the motor build path, I would need to rebuild and learn from each build several times. Something I was hoping and not looking forward to doing, more inclining me to another platform.

But what about the SOHO HB stage 2 longblock? If I were to purchase that one and keep my power at 800whp, would I still need to rebuild it over and over again if I were to do a few 1/4 mile passes, and some weekend highway runs everynow and then?


Yup this is the next platform I was looking at and already know a ton about this platform already. It seems like it will be so much more easier to reach my goal. Some people mention GTR, but unfortunately the R35 GTR has skyrocketed in price in my country, atleast 25-30K more than the Supra, the money I was going to use to upgrade the Supra if I were to get one. I mean I really still love my Z, and want to build it but it sounds like its a much harder path to reach my goal.

Soho stock block? Which one is that?