Isayimandrew's Twin Turbo Build

isayimandrew · 08-02-2021, 12:51 PM

Quote:

Originally Posted by Elmo370z

Congratulations on the build, might want to address to heads if you ever plan on bumping the power up. Those power levels I would of staying with a stock block if you’re not racing the car.

Address the heads more than what Jotech is providing already? And I won't be racing the car. The only reason I was actually upgrading the pistons and rods were because when we did a compression test, we found out cylinder 1 was at 140 PSI while the rest were around 180-200 PSI. Decided to add the closed deck block mod from Cylinder Support Systems and Jotech's solution for helping with head lift since we were already in there.

Spooler · 08-02-2021, 12:57 PM

Quote:

Originally Posted by isayimandrew

Address the heads more than what Jotech is providing already? And I won't be racing the car. The only reason I was actually upgrading the pistons and rods were because when we did a compression test, we found out cylinder 1 was at 140 PSI while the rest were around 180-200 PSI. Decided to add the closed deck block mod from Cylinder Support Systems and Jotech's solution for helping with head lift since we were already in there.

Not sure what Jotech's solution is but that will be an issue if not done correctly. If you stay around 650whp you should be OK. Since you are limited because of your clutch, I don't think you will have a problem. Get greedy and it can cost you.

isayimandrew · 08-02-2021, 01:19 PM

Quote:

Originally Posted by Spooler

Not sure what Jotech's solution is but that will be an issue if not done correctly. If you stay around 650whp you should be OK. Since you are limited because of your clutch, I don't think you will have a problem. Get greedy and it can cost you.

I see. Jotech's solution is to use upgraded head bolts (1mm larger), the ARP main stud kit, and machine heads and block to accept the larger studs. There might be more that I could have missed from when I spoke to them about it. Definitely not trying to get greedy on power. 600 to 650 WHP is something I'd be extremely happy with. I'm not planning on going past that number anyways since for me anything over that is excessive (even though 600 to 650 is technically excessive for street lol).

JARblue · 08-02-2021, 01:25 PM

Sounds like fun! Good luck with the build

Elmo370z · 08-02-2021, 01:34 PM

Quote:

Originally Posted by isayimandrew

I see. Jotech's solution is to use upgraded head bolts (1mm larger), the ARP main stud kit, and machine heads and block to accept the larger studs. There might be more that I could have missed from when I spoke to them about it. Definitely not trying to get greedy on power. 600 to 650 WHP is something I'd be extremely happy with. I'm not planning on going past that number anyways since for me anything over that is excessive (even though 600 to 650 is technically excessive for street lol).

Upgrading to a larger head stud isn’t ideal, there isn’t much meat to justify it. You want better clamping load unfortunately some form of on rings or step decking and fire rings needs to happen. Closed deck will not add benefits to sealing the heads. Like spooler said you get greedy and you will be building another motor, ask him how he knows

Spooler · 08-02-2021, 01:35 PM

Quote:

Originally Posted by Elmo370z

Upgrading to a larger head stud isn’t ideal, there isn’t much meat to justify it. You want better clamping load unfortunately some form of on rings or step decking and fire rings needs to happen. Closed deck will not add benefits to sealing the heads. Like spooler said you get greedy and you will be building another motor, ask him how he knows

Thanks for reminding me A-hole....

Elmo370z · 08-02-2021, 01:54 PM

Quote:

Originally Posted by Spooler

Thanks for reminding me A-hole....

😂, let me
Rephrase it, good read his thread.1- 160pages

isayimandrew · 08-02-2021, 02:08 PM

Quote:

Originally Posted by Elmo370z

Upgrading to a larger head stud isn’t ideal, there isn’t much meat to justify it. You want better clamping load unfortunately some form of on rings or step decking and fire rings needs to happen. Closed deck will not add benefits to sealing the heads. Like spooler said you get greedy and you will be building another motor, ask him how he knows

I gotcha. Yeah definitely not going to get greedy! I'd rather be conservative and relatively reliable rather than chasing a number.

08-02-2021, 01:25 PM	#4 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 45 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684442	Sounds like fun! Good luck with the build isayimandrew likes this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
370Z G37 RHD Diy Twin Turbo Build	rovert	Member's 370Z Gallery	8	02-08-2020 04:32 PM
New Twin Turbo build in progress: Another Gamma V3 Twin turbo install	Nyght	Forced Induction	37	08-08-2017 09:27 AM
Twin Turbo Build	LafitteZ	40th Anniversary 370Z	42	10-05-2011 09:58 AM
TITAN's Twin Turbo build Done!!!!!!	kenbains12	Forced Induction	49	06-18-2010 07:32 AM