Isayimandrew's Twin Turbo Build

Elmo370z · 01-20-2022, 10:18 AM

Quote:

Originally Posted by isayimandrew

Are you talking about CNC Werx? I saw a while back they had a VQ build for soho but no clue for which Z.

Jotec. The motor is from that 900whp sc Z that soho built

isayimandrew · 01-20-2022, 10:37 AM

Quote:

Originally Posted by Elmo370z

Jotec. The motor is from that 900whp sc Z that soho built

Ahh I gotcha. I don't know what Jotech has lying around. I thought I was the only Z at their shop currently but I could be wrong.

FrankEtier · 01-20-2022, 11:37 AM

Quote:

Originally Posted by Elmo370z

Jotec. The motor is from that 900whp sc Z that soho built

That motor is there but I heard one of the Jotech guys purchased it from Ben.

isayimandrew · 01-26-2022, 03:57 PM

Another Update:

Going with the ZSpeed Super SIX Rigid Stage 4 Race Clutch instead of the ZSpeed Super Street Stage 3 clutch so that the clutch won't be a limiting factor and we can tune based on the build.

Joe at ZSpeed was super helpful getting the stage 3 disk swapped out for the stage 4 disk while keeping everything else.

isayimandrew · 04-20-2022, 11:09 AM

4/20

update:

The ARP Custom Aged 625+ head studs came in and Jotech is currently finishing up the long block assembly. Aiming to have the car on the lift early next week to install all the parts. Aiming to have the car done around the 1st or 2nd week of May so hopefully everything goes smoothly!

Elmo370z · 04-20-2022, 11:15 AM

What did you have done to the heads again?

isayimandrew · 04-20-2022, 11:35 AM

Quote:

Originally Posted by Elmo370z

What did you have done to the heads again?

Most of the work was done on the block. The only thing they did on the heads was machine them to accept the larger studs and clean and inspect them.

Elmo370z · 04-20-2022, 08:37 PM

Quote:

Originally Posted by isayimandrew

Most of the work was done on the block. The only thing they did on the heads was machine them to accept the larger studs and clean and inspect them.

Be interesting to see your journey, as this method has everything negative going against you. Good luck, I hope this hold up.

redondoaveb · 04-20-2022, 08:56 PM

Quote:

Originally Posted by Elmo370z

Be interesting to see your journey, as this method has everything negative going against you. Good luck, I hope this hold up.

What psi does the stock block start lifting heads?

Hotrodz · 04-20-2022, 10:46 PM

Quote:

Originally Posted by redondoaveb

What psi does the stock block start lifting heads?

Stock block 750 plus and built motor 800 plus. There is a reason Seb only tunes to 700whp regardless of stock or built. The key is torque. Now you can dial the tq down to around around 500 tq at 700whp. When I was on a stock block w/stage 1 turbos I was at 600whp and 559tq. That said the smaller turbos spool much faster and the tq comes on fast.

Sent from my SM-G965U using Tapatalk

Elmo370z · 04-21-2022, 08:02 AM

Quote:

Originally Posted by redondoaveb

What psi does the stock block start lifting heads?

You and bob are correct. It’s about torque. Cjm car never lifted head even over 50 plus passes and the drag strip. He ran 700-800+whp.

isayimandrew · 04-20-2022, 10:49 PM

Quote:

Originally Posted by Elmo370z

Be interesting to see your journey, as this method has everything negative going against you. Good luck, I hope this hold up.

I hope it does. I'm pretty much just going with Jotech's recommendations and they have some solid builds. I'm also not chasing a specific number and they know that so I don't think we will be pushing anything to the limits.

isayimandrew · 04-28-2022, 11:01 AM

Got worried after what Elmo370z and Hotrodz said so I double-checked with Jotech to see what they did to avoid head lift and the solution we went with is fire rings and the APR CA625+ head studs.

Just waiting on a few gaskets from Nissan and my motor should be finished up by the end of this week. Car is going up on the lift on Saturday to start all the installation!

Hotrodz · 04-28-2022, 11:19 AM

Quote:

Originally Posted by isayimandrew

Got worried after what Elmo370z and Hotrodz said so I double-checked with Jotech to see what they did to avoid head lift and the solution we went with is fire rings and the APR CA625+ head studs.

Just waiting on a few gaskets from Nissan and my motor should be finished up by the end of this week. Car is going up on the lift on Saturday to start all the installation!

You should be good to go! Looking forward to future updates!

Sent from my SM-G965U using Tapatalk

Elmo370z · 04-28-2022, 12:10 PM

Quote:

Originally Posted by isayimandrew

Got worried after what Elmo370z and Hotrodz said so I double-checked with Jotech to see what they did to avoid head lift and the solution we went with is fire rings and the APR CA625+ head studs.

Just waiting on a few gaskets from Nissan and my motor should be finished up by the end of this week. Car is going up on the lift on Saturday to start all the installation!

finally someone listened.

01-26-2022, 03:57 PM	#4 (permalink)
isayimandrew Enthusiast Member Join Date: Sep 2012 Location: Texas Posts: 321 Drives: 13 370Z Nismo MR M6 Rep Power: 14	Another Update: Going with the ZSpeed Super SIX Rigid Stage 4 Race Clutch instead of the ZSpeed Super Street Stage 3 clutch so that the clutch won't be a limiting factor and we can tune based on the build. Joe at ZSpeed was super helpful getting the stage 3 disk swapped out for the stage 4 disk while keeping everything else. ZontheRocks likes this.

04-28-2022, 11:01 AM	#13 (permalink)
isayimandrew Enthusiast Member Join Date: Sep 2012 Location: Texas Posts: 321 Drives: 13 370Z Nismo MR M6 Rep Power: 14	Got worried after what Elmo370z and Hotrodz said so I double-checked with Jotech to see what they did to avoid head lift and the solution we went with is fire rings and the APR CA625+ head studs. Just waiting on a few gaskets from Nissan and my motor should be finished up by the end of this week. Car is going up on the lift on Saturday to start all the installation! JARblue, cv129, Hotrodz and 2 others like this.

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04-20-2022, 11:09 AM	#5 (permalink)
isayimandrew Enthusiast Member Join Date: Sep 2012 Location: Texas Posts: 321 Drives: 13 370Z Nismo MR M6 Rep Power: 14	4/20 update: The ARP Custom Aged 625+ head studs came in and Jotech is currently finishing up the long block assembly. Aiming to have the car on the lift early next week to install all the parts. Aiming to have the car done around the 1st or 2nd week of May so hopefully everything goes smoothly!

04-20-2022, 11:15 AM	#6 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,730 Drives: 09 nissan 370z Sp M6 Rep Power: 295380	What did you have done to the heads again?