Isayimandrew's Twin Turbo Build

isayimandrew

Definitely listening to the guys that have a lot of experience and knowledge on here. I remember when I first dropped it off Jotech mentioned solutions to mitigate head lift risks. I knew they did something and I trust them 110% with my build I just didn't know the details but it was good to come back and verify that they accounted for all of that similar to what you guys have recommended.

isayimandrew

Got more updates to share!

• Motor is assembled

• Turbo kit is installed on the motor

• clutch and flywheel are installed

• motor and transmission are back in the car

• fueling system is installed

• differential is installed in the case and ready to go on the car

Got a lot more parts to install but they're hoping we will be doing the professional break in for the motor and have it on the dyno by end of next week.

SR_GUY

Are you going to be driving this on the streets still? Hows the clutch and flywheel? A bit to aggressive for the streets? Just wondering because just got the same setup for my turbo build

isayimandrew

Yes, this car will still be a street car. The car is still at Jotech so I don't know yet but i'll update you once I have it back and drive it around for a bit.

Elmo370z

Do you have to retorque the heads bolts? I know with those 625 and copper after a proper warm up procedure it’s highly recommended to go back and re torque the head bolts.

isayimandrew

I'll be going to Jotech hopefully this week or early next week to watch the break in and initial dyno tuning so I'll ask them about re-torqueing the head bolts.

Elmo370z

99% shops don’t do it because they don’t have a engine stand, and the vvel is a major pain in the *** to take back apart

isayimandrew

Spoke to Jotech and they won't be re-torqueing the head studs. They were pretty confident that it wasn't needed and that their previous Z and GTR builds haven't had any issues or needed re-torqueing.

isayimandrew

Got a few more updates. Looks like they're wrapping everything up. Had some start up communication issues that they think are sensor related so once those are replaced and the tuner is back from vacation we should be back on track to have the professional break in and initial dyno tuning soon.

More progress pics:

ZontheRocks

Looking sweet!

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'16 Pearl White Sport | Stillen Gen. 3 | Motordyne ART | Motordyne Shockwave | ZSpeed | Powertrix | EVO-R | Aeroworkz | Nismo | Z1 | EcuTek | Tuned by Seb @ SpecialtyZ

isayimandrew

Dyno numbers are in!

On pump gas it made 559whp & 529wtq

On Ethanol with 60% ethanol content it made 650whp & 582wtq at 20 PSI.

For the ethanol run, we were at the limit of the injectors, about 90% IDC on the run. Probably going to keep this set up for a little bit before upgrading to a twin fuel pump setup and either 1300X or 1700X injectors. I did buy a Seibon TS style vented hood from Jotech but not planning on getting it paint matched and install until spring time so thats when I'll most likely do the fuel pump and injectors too.

redondoaveb

Twin pumps are a good idea but I'd probably go with 1300's instead of 1700's unless you're going for huge power. My car made 745whp on e85 with 1300's and they weren't maxed out. The 1700's are just going to give you a shitty idle

Great numbers by the way! Fast Intentions ftw

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Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo
750whp/700ft.lbs

isayimandrew

So the CJM Twin pump and the 1300X should be a good set up?

madwi

Cant go wrong with that combo.

redondoaveb

Yep, I run twin Hellcats but that's a little overkill

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Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo
750whp/700ft.lbs