My built TT 370z is getting tuned today... What power can I expect?

Spooler · 03-29-2018, 12:21 PM

Quote:

Originally Posted by JSur

I have a stock motor, same fuel pump and 600cc injectors. Made 550whp with no knocks. Only 10.7 lbs of boost. You should definitely be able reach 600whp, or close to it on your setup. Posting vids!?!

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He won't make that, he lowered the compression from 11:1 to 9.5:1. This will be a major hurdle to overcome.

Boosted Performance · 03-29-2018, 10:06 AM

Those tiny .48 a/r turbines will hold you back. With a built block you should have opted for the .63's for sure.

Your will see your torque climb hard and fast, and your HP will taper off quickly after 6k rpm when you start ramping up the boost.

tonyHTX · 03-29-2018, 01:19 PM

Quote:

Originally Posted by Boosted Performance

Those tiny .48 a/r turbines will hold you back. With a built block you should have opted for the .63's for sure.

Your will see your torque climb hard and fast, and your HP will taper off quickly after 6k rpm when you start ramping up the boost.

Also you can add that the GT-R manifold conversion will kill the power past 6k.

braydo25 · 03-29-2018, 03:47 PM

Quote:

Originally Posted by tonyHTX

Also you can add that the GT-R manifold conversion will kill the power past 6k.

I upgraded to the GT-R manifold as I've heard horror stories of manifolds starting to bulge and eventually leak when approaching the 20psi+ mark. I just didn't want to have to deal with that happening. Plus it looks cool - lol!

braydo25 · 03-29-2018, 03:46 PM

Quote:

Originally Posted by Boosted Performance

Those tiny .48 a/r turbines will hold you back. With a built block you should have opted for the .63's for sure.

Your will see your torque climb hard and fast, and your HP will taper off quickly after 6k rpm when you start ramping up the boost.

Yeah, I've thought about this - I actually didn't opt for a new turbo setup, I've just reused the original setup the car had when I bought it.

I would ideally like to push these turbos to their limit before upgrading. I'd like to hit the 700whp to 750whp mark while still maintaining the enjoyable drivability and power band this turbo setup has provided. There's very, very little lag. It was sooo fun to drive before it threw a rod.

jchammond · 03-29-2018, 07:20 PM

Gotta be getting closer to your turn.....

braydo25 · 03-29-2018, 07:46 PM

Quote:

Originally Posted by jchammond

Gotta be getting closer to your turn.....

?

jchammond · 03-30-2018, 05:41 AM

Quote:

Originally Posted by braydo25

?

Hopefully you made it on the rollers & got a tune,
Should have some decent numbers!

VSS370z · 03-30-2018, 08:24 AM

Why did you opted for now on a proper return fuel system? Sure with a good build and proper tune you should be fine but honestly you should have install that fuel return. Rated 720 cc injectors and 320 lph fuel pump plus lowering the compression you will have to push the turbos harder to reach lets say 500whp than someone with 11.1 compression ratio. I lower the compression on mine and i didn't skip on a return fuel system and believe me is harder to reach the numbers you want. Your limiting factor right is what will help you the most achiving what you want....FUEL!

braydo25 · 03-30-2018, 11:30 AM

Quote:

Originally Posted by VSS370z

Why did you opted for now on a proper return fuel system? Sure with a good build and proper tune you should be fine but honestly you should have install that fuel return. Rated 720 cc injectors and 320 lph fuel pump plus lowering the compression you will have to push the turbos harder to reach lets say 500whp than someone with 11.1 compression ratio. I lower the compression on mine and i didn't skip on a return fuel system and believe me is harder to reach the numbers you want. Your limiting factor right is what will help you the most achiving what you want....FUEL!

Builder / tuner said it probably won't be needed for < 600whp even on 9.5:1 compression.

Calg37USMC · 03-31-2018, 04:17 PM

Should of went to Drift office, Shop is 30 mins away from you and is a smaller Business you could of supported that does great work.

braydo25 · 03-31-2018, 05:25 PM

Quote:

Originally Posted by Calg37USMC

Should of went to Drift office, Shop is 30 mins away from you and is a smaller Business you could of supported that does great work.

I know Bob (the owner) and actually talked to him. I would of been happy for him to take on the project. They however do builds from the ground up and didn't want to deal with my existing 1 off turbo kit setup which is understandable since they don't want liability if the car breaks from some part they don't stand behind.

Calg37USMC · 03-31-2018, 06:03 PM

Quote:

Originally Posted by braydo25

I know Bob (the owner) and actually talked to him. I would of been happy for him to take on the project. They however do builds from the ground up and didn't want to deal with my existing 1 off turbo kit setup which is understandable since they don't want liability if the car breaks from some part they don't stand behind.

Understandable, hope everything works out for you man!

braydo25 · 04-03-2018, 12:49 PM

So, here's a bit of an update.

We got the car tuned on the dyno with the current injectors and 340lph pump. The pump itself started to act odd around the 450whp mark & 12psi or boost. We're thinking it may be bad since I don't know how long the previous owner had it in the car. Also the car was previously tuned on the factory map sensor, we're already maxing it out so upgrading to a 3 bar sensor as well.

Regardless of that though, we said screw it and are just upgrading the whole fuel system now to not have to deal with it later.

End of week we'll be installing id 1050x injectors, Wahlbro 485lph pump, cj motorsports full s1.se fuel system kit and proper map sensor. Big power will come then!

Here's a video of the car on the dyno and making 450whp~.

https://youtu.be/cRut2ZIYuJ0

03-29-2018, 10:06 AM	#2 (permalink)
Boosted Performance The370Z.com Sponsor Join Date: Feb 2010 Location: Edmonton, AB Posts: 1,629 Drives: Z's Rep Power: 3383	Those tiny .48 a/r turbines will hold you back. With a built block you should have opted for the .63's for sure. Your will see your torque climb hard and fast, and your HP will taper off quickly after 6k rpm when you start ramping up the boost. __________________ 750WHP starting @ $7,500 to the door FOR DETAILS VISIT: http://www.the370z.com/members/boosted-performance.html FB: https://www.facebook.com/Boosted-Per...6303179791462/ IG @boostedperformanceyeg

03-29-2018, 07:20 PM	#6 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 58 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684395	Gotta be getting closer to your turn..... __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

03-31-2018, 04:17 PM	#11 (permalink)
Calg37USMC Base Member Join Date: Oct 2017 Location: Seattle Posts: 40 Drives: 12’G37sSedan GAC 6MT Rep Power: 8	Should of went to Drift office, Shop is 30 mins away from you and is a smaller Business you could of supported that does great work. __________________ 12'G37s\|6MT\|Malbec Black\|Gen 3's\|MD LTH\|MD E370 CBE\|Uprev\|342hp/274tq

04-03-2018, 12:49 PM	#14 (permalink)
braydo25 Base Member Join Date: Apr 2012 Location: Tacoma Posts: 67 Drives: Nismo z34 Rep Power: 14	So, here's a bit of an update. We got the car tuned on the dyno with the current injectors and 340lph pump. The pump itself started to act odd around the 450whp mark & 12psi or boost. We're thinking it may be bad since I don't know how long the previous owner had it in the car. Also the car was previously tuned on the factory map sensor, we're already maxing it out so upgrading to a 3 bar sensor as well. Regardless of that though, we said screw it and are just upgrading the whole fuel system now to not have to deal with it later. End of week we'll be installing id 1050x injectors, Wahlbro 485lph pump, cj motorsports full s1.se fuel system kit and proper map sensor. Big power will come then! Here's a video of the car on the dyno and making 450whp~. https://youtu.be/cRut2ZIYuJ0 jwick and husam2012 like this.

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03-30-2018, 08:24 AM	#9 (permalink)
VSS370z Enthusiast Member Join Date: Apr 2012 Location: Puerto Rico Posts: 380 Drives: 09 Nissan 370z CY M6 Rep Power: 14	Why did you opted for now on a proper return fuel system? Sure with a good build and proper tune you should be fine but honestly you should have install that fuel return. Rated 720 cc injectors and 320 lph fuel pump plus lowering the compression you will have to push the turbos harder to reach lets say 500whp than someone with 11.1 compression ratio. I lower the compression on mine and i didn't skip on a return fuel system and believe me is harder to reach the numbers you want. Your limiting factor right is what will help you the most achiving what you want....FUEL!