VQ37VHR Max HP/Torque

phunk · 07-30-2017, 06:15 PM

Quote:

Originally Posted by shadow85

OK, so after the wonderful people here helping me understand what a block is and not making fun of me. I decided to read up on short block and long block.

So, if I was to destroy my stock block after being boosted, I could buy like a short block package for example from Z1 and swap that in and I would be good to go again?

There is not a solid way to predict what will be taken out when an engine lets go. In many cases, you will need to replace the entire engine. Even if you just break a rod, the carnage that ensues will often destroy the top half of the engine as well.

Rusty · 07-30-2017, 09:25 PM

Quote:

Originally Posted by phunk

There is not a solid way to predict what will be taken out when an engine lets go. In many cases, you will need to replace the entire engine. Even if you just break a rod, the carnage that ensues will often destroy the top half of the engine as well.

Have taken too many motors apart to see that everything was damaged. Rare to see one that didn't damage the heads. Took one apart that had bits and pieces in the inlet manifold.

turtle64b · 07-30-2017, 05:55 PM

SOHO could also hook you up with an engine as well! I'm waiting on my transmission to fail before I go to Level 10 for a bulletproof one and then once I have a real job, I plan to go to SOHO or Z1 for a 4.0-4.2 block

phunk · 11-22-2017, 12:06 AM

While testing our new twin fuel pump, we jumped the stock engine HP record by 50hp.

Tuning on our test subject is via SpecialtyZ.

This was actually a month ago now that I think about it. I need to make some threads one of these days.

If the pic is hard to read, that there reads 818whp and 622lb-ft, Dynojet STD. 18.5psi peak boost. 4th gear pull.

jchammond · 11-22-2017, 12:11 AM

Quote:

Originally Posted by phunk

While testing our new twin fuel pump, we jumped the stock engine HP record by 50hp.

Tuning on our test subject is via SpecialtyZ.

This was actually a month ago now that I think about it. I need to make some threads one of these days.

If the pic is hard to read, that there reads 818whp and 622lb-ft, Dynojet STD. 18.5psi peak boost.

Big single Turbo or twin's? Good job keeping torque somewhat at bay!

phunk · 11-22-2017, 12:19 AM

Quote:

Originally Posted by jchammond

Big single Turbo or twin's? Good job keeping torque somewhat at bay!

Twin Garrett GT3076R Gen I with Tial Turbine housings, cant remember which housing off the top of my head.

jchammond · 11-22-2017, 12:37 AM

Quote:

Originally Posted by phunk

Twin Garrett GT3076R Gen I with Tial Turbine housings, cant remember which housing off the top of my head.

That look's like those $24,950.00 manifolds...

Rusty · 11-22-2017, 12:51 AM

Nice work phunk!

jchammond · 11-22-2017, 01:39 AM

It appears that mounting the turbos away from the heads a bit, can keep the torque down & not affect HP.
I've noticed some of the other exhaust manifolds (that hold the snails up closer to the engine) seem to put more torque down.....must be the extra heat or use of smaller,quicker spooling turbo's.
Than again-it could all be in the hand's of the Tuner.

phunk · 11-22-2017, 03:29 AM

Quote:

Originally Posted by jchammond

It appears that mounting the turbos away from the heads a bit, can keep the torque down & not affect HP.
I've noticed some of the other exhaust manifolds (that hold the snails up closer to the engine) seem to put more torque down.....must be the extra heat or use of smaller,quicker spooling turbo's.
Than again-it could all be in the hand's of the Tuner.

The boost curve you are seeing on that dyno graph is by design. Notice the power starts at zero... I begin recording before I step on the throttle, and when I do step in, I ease down the same way I (and the vehicle owner) would on the street. From there the boost control is programmed to gradually increase boost as rpm climbs. This is part of the strategy to keeping the fragile stock engine alive at this type of power.

At the lower boost settings in the 600s to the wheels I drove this car on the street myself and the low end torque is better than my supercharged mustang. It feels amazing and changed my mind about turbo sizing on the VHR. I would never bother with a smaller turbo than this car has on it now. The response is already just plain immediate, despite having 1000-1100whp worth of turbo on it.

SS_Firehawk · 11-22-2017, 02:34 AM

Controlling that boost

etx · 12-01-2017, 01:33 PM

That's absolutely amazing. Great work Charles!!

phunk · 12-01-2017, 01:43 PM

Quote:

Originally Posted by etx

That's absolutely amazing. Great work Charles!!

Thanks, I just added that it was a 4th gear pull as well. We have always dyno'd 370z in 4th gear here. I dont know how much higher it would be in 5th since we never did any comparisons.

Nissan370 · 02-04-2014, 07:17 PM

With out vvet being cracked we boosted guys are missing out on some extra power as we can't do a cam

I think going to a return style fuel system may be safer if your going to do
High 550+

ATM I have 340lph pump with large gauge wire running to the battery

I think a poor tune on my Stillen kit killed my stock motor and I was only making about 400rwhp at the time

11-22-2017, 12:51 AM	#8 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 69 Posts: 35,351 Drives: 2011 Nismo GM 6M Rep Power: 2684438	Nice work phunk! phunk and jchammond like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

11-22-2017, 01:39 AM	#9 (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	It appears that mounting the turbos away from the heads a bit, can keep the torque down & not affect HP. I've noticed some of the other exhaust manifolds (that hold the snails up closer to the engine) seem to put more torque down.....must be the extra heat or use of smaller,quicker spooling turbo's. Than again-it could all be in the hand's of the Tuner. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

11-22-2017, 02:34 AM	#11 (permalink)
SS_Firehawk Premium Member Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7335	Controlling that boost phunk likes this. __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

02-04-2014, 07:17 PM	#14 (permalink)
Nissan370 Enthusiast Member Join Date: Feb 2011 Location: Baltimore Posts: 431 Drives: 2009 ST BLK 370Z Rep Power: 15	With out vvet being cracked we boosted guys are missing out on some extra power as we can't do a cam I think going to a return style fuel system may be safer if your going to do High 550+ ATM I have 340lph pump with large gauge wire running to the battery I think a poor tune on my Stillen kit killed my stock motor and I was only making about 400rwhp at the time __________________ 370z vsr motorsports single turbo/built motor 9.1cr 525rwhp/450rwtq @ 10.5psi (stock maf maxed out)

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07-30-2017, 05:55 PM	#3 (permalink)
turtle64b Track Member Join Date: Jun 2015 Location: Granbury, TX Posts: 550 Drives: '11 SC Blue 7AT Rep Power: 3366	SOHO could also hook you up with an engine as well! I'm waiting on my transmission to fail before I go to Level 10 for a bulletproof one and then once I have a real job, I plan to go to SOHO or Z1 for a 4.0-4.2 block

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etx Base Member Join Date: Apr 2016 Location: Detroit Posts: 43 Drives: 2010 370z PW M6 Rep Power: 9	That's absolutely amazing. Great work Charles!!