GT-R turbos on the VQ37

husam2012 · 08-21-2017, 04:06 PM

It seems like my luck with this car will never end

My dyno was an hour ago and they lifted it to check everything and there was a coolant leak when looking from under the engine. I went back home and it looks like its the crossover gasket.

Anybody know why this could happen? It's really random since I never touched the crossover pipe

Sent from my iPhone using Tapatalk

husam2012 · 08-26-2017, 05:50 PM

Finally fixed everything on this lucky car and the dyno went as planned

Unfortunately the timing was very limited by the octane so I will retune with e85 as soon as I can afford the flex fuel kit (need to also upgrage to a return fuel system) $$$

Good news for people who aren't running one though. Running 93 octane, my fuel pressure with a 340 pump was still 48-52 at redline.

Follow my Instagram for the dyno video. So far it's running awesome but I can't wait to get retuned on e85 as timing is currently 12 degrees at redline.

Sent from my iPhone using Tapatalk

SG4247 · 08-26-2017, 06:55 PM

Remind me pls, what was the tune on the ECM?

Or was some tuning done at this dyno session?

husam2012 · 08-26-2017, 07:01 PM

Quote:

Originally Posted by SG4247

Remind me pls, what was the tune on the ECM?

Or was some tuning done at this dyno session?

The tune was done on the dyno. First pull using the safe street tune I originally got was 390 whp. The tuner then proceeded to make the afr's safer and then increased timing to approx 12 degrees at redline. Anything higher and it was knocking near redline.
He recommended e85 but unfortunately my budget doesn't allow it at the moment.

Keep in mind that this is the first Z that he has tuned. He usually tunes GTR's.

Jayhovah · 08-26-2017, 09:37 PM

Niiiiiiiiiiiiiiiiiiiice numbers!!! Hell of a job.

Elmo370z · 08-26-2017, 10:55 PM

Was the car pulling timing at 6,500?

husam2012 · 08-27-2017, 03:44 PM

Quote:

Originally Posted by Elmo370z

Was the car pulling timing at 6,500?

Not that I am aware. I'll have to check the final dyno sheet

Sent from my iPhone using Tapatalk

Rusty · 08-27-2017, 05:58 PM

I thought you would get around 475 to 500hp out of it on 93 oct. Still not bad.

husam2012 · 08-27-2017, 06:03 PM

Quote:

Originally Posted by Rusty

I thought you would get around 475 to 500hp out of it on 93 oct. Still not bad.

The tuner said there's around 30-40 hp more possible with some risk and another hour of dyno time but I decided against it. Just going to enjoy driving it finally haha

Sent from my iPhone using Tapatalk

Rusty · 08-27-2017, 06:48 PM

After what you went through. Enjoy driving it.

husam2012 · 08-31-2017, 11:33 AM

Well, I finally thought it out and decided to buy the CJM S1.E Fuel System. Will be installing it this weekend and tuning for Flex fuel shortly after.

Given all the bad luck i've had so far this year, i decided to play it safe and run E85 all the time just for safety.

I had my fuel pressure gauge recorded using a camera while i was on the dyno and it was as low as 42-45 PSI at redline. I decided to play it safe and to not run it much longer like that. (Gauge shows pressure at the rail but not actual pressure at the fuel injectors)

So for anyone planning to run turbos, I wouldn't recommend the OEM returnless system simply because 42 PSI - Boost PSI = actual pressure at the injectors.

In my case, it was very low 30's which probably contributed to the low power levels achieved.

husam2012 · 09-07-2017, 12:32 PM

About to install my flex fuel sensor along with the whole fuel system. It's going to be a tight fit around the turbos but I believe there's just enough space to do this. Wish me luck!

Sent from my iPhone using Tapatalk

sirnixalot · 09-07-2017, 08:43 PM

congrats!

Sorry if it was mentioned but what boost were you running while on the dyno?

husam2012 · 10-02-2017, 10:31 PM

Sorry for the lack of updates guys. Got a new job at a performance shop to make a little more money for school/bills and just started the semester being fulltime.

My bad luck finally caught up to me.

The car still runs perfect and with the flex fuel It's probably making over 500 WHP at 12 PSI at this second. But, it's probably going to spin a bearing soon.

Basically, I haven't put more than a couple hundred miles since the dyno tune but that oil pressure issue that happened a while back was still haunting me.

I finally got it up on a lift to drop the pan and cut open the filter. I found what i was expecting all along

A few small metal flakes at the bottom of the pan and inside the oil filter. I'm really sad that this happened and had hoped to enjoy it for at least a little longer.

I'm not really sure what to do at this point since i have literally no money to buy anything else for it, and not a lot of time between school and work. I was just thinking of trading it into a stealership and to cut my loses at this point.

It's been a joy to drive with this much power, and maybe someday I'll build another one just like it!

Be on the lookout for a GT-R turbo partout in the upcoming months unless something/ someone changes my mind.

Thanks everyone for your help along this journey, it has been definitely a good learning experience.

One last video so you guys can hear it's final moments

rovert · 10-03-2017, 01:55 AM

Mate, thats really, really sad to hear.
Could you possibly throw a used engine into her from a wrecker?

08-21-2017, 04:06 PM	#1 (permalink)
husam2012 Track Member Join Date: Mar 2015 Location: Michigan Posts: 553 Drives: 370Z Nismo Rep Power: 9470	It seems like my luck with this car will never end My dyno was an hour ago and they lifted it to check everything and there was a coolant leak when looking from under the engine. I went back home and it looks like its the crossover gasket. Anybody know why this could happen? It's really random since I never touched the crossover pipe Sent from my iPhone using Tapatalk __________________ Creator of the GTR TT Conversion Kit, NA Record Holder (401WHP) Ecutek Master Tuner (VQ37, VR30, VR38, B58, S55, S58) BTWTuning

08-26-2017, 05:50 PM	#2 (permalink)
husam2012 Track Member Join Date: Mar 2015 Location: Michigan Posts: 553 Drives: 370Z Nismo Rep Power: 9470	GT-R turbos on the VQ37 Finally fixed everything on this lucky car and the dyno went as planned Unfortunately the timing was very limited by the octane so I will retune with e85 as soon as I can afford the flex fuel kit (need to also upgrage to a return fuel system) $$$ Good news for people who aren't running one though. Running 93 octane, my fuel pressure with a 340 pump was still 48-52 at redline. Follow my Instagram for the dyno video. So far it's running awesome but I can't wait to get retuned on e85 as timing is currently 12 degrees at redline. Sent from my iPhone using Tapatalk __________________ Creator of the GTR TT Conversion Kit, NA Record Holder (401WHP) Ecutek Master Tuner (VQ37, VR30, VR38, B58, S55, S58) BTWTuning

08-27-2017, 05:58 PM	#8 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 69 Posts: 35,558 Drives: 2011 Nismo GM 6M Rep Power: 2684439	I thought you would get around 475 to 500hp out of it on 93 oct. Still not bad. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

08-27-2017, 06:48 PM	#10 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 69 Posts: 35,558 Drives: 2011 Nismo GM 6M Rep Power: 2684439	After what you went through. Enjoy driving it. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

09-07-2017, 12:32 PM	#12 (permalink)
husam2012 Track Member Join Date: Mar 2015 Location: Michigan Posts: 553 Drives: 370Z Nismo Rep Power: 9470	About to install my flex fuel sensor along with the whole fuel system. It's going to be a tight fit around the turbos but I believe there's just enough space to do this. Wish me luck! Sent from my iPhone using Tapatalk __________________ Creator of the GTR TT Conversion Kit, NA Record Holder (401WHP) Ecutek Master Tuner (VQ37, VR30, VR38, B58, S55, S58) BTWTuning

08-26-2017, 06:55 PM	#3 (permalink)
SG4247 Track Member Join Date: Oct 2016 Location: OKC Posts: 822 Drives: 2010 touring Rep Power: 7842	Remind me pls, what was the tune on the ECM? Or was some tuning done at this dyno session?

08-26-2017, 10:55 PM	#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: 295379	Was the car pulling timing at 6,500?

08-31-2017, 11:33 AM	#11 (permalink)
husam2012 Track Member Join Date: Mar 2015 Location: Michigan Posts: 553 Drives: 370Z Nismo Rep Power: 9470	Well, I finally thought it out and decided to buy the CJM S1.E Fuel System. Will be installing it this weekend and tuning for Flex fuel shortly after. Given all the bad luck i've had so far this year, i decided to play it safe and run E85 all the time just for safety. I had my fuel pressure gauge recorded using a camera while i was on the dyno and it was as low as 42-45 PSI at redline. I decided to play it safe and to not run it much longer like that. (Gauge shows pressure at the rail but not actual pressure at the fuel injectors) So for anyone planning to run turbos, I wouldn't recommend the OEM returnless system simply because 42 PSI - Boost PSI = actual pressure at the injectors. In my case, it was very low 30's which probably contributed to the low power levels achieved.

09-07-2017, 08:43 PM	#13 (permalink)
sirnixalot Track Member Join Date: May 2017 Location: Cayman Islands Posts: 685 Drives: 2010 370Z Rep Power: 57455	congrats! Sorry if it was mentioned but what boost were you running while on the dyno? __________________ 2010 Sport - LS3 swap loading 2012 Frontier - BTWTuning VK56DE swap

10-02-2017, 10:31 PM	#14 (permalink)
husam2012 Track Member Join Date: Mar 2015 Location: Michigan Posts: 553 Drives: 370Z Nismo Rep Power: 9470	Sorry for the lack of updates guys. Got a new job at a performance shop to make a little more money for school/bills and just started the semester being fulltime. My bad luck finally caught up to me. The car still runs perfect and with the flex fuel It's probably making over 500 WHP at 12 PSI at this second. But, it's probably going to spin a bearing soon. Basically, I haven't put more than a couple hundred miles since the dyno tune but that oil pressure issue that happened a while back was still haunting me. I finally got it up on a lift to drop the pan and cut open the filter. I found what i was expecting all along A few small metal flakes at the bottom of the pan and inside the oil filter. I'm really sad that this happened and had hoped to enjoy it for at least a little longer. I'm not really sure what to do at this point since i have literally no money to buy anything else for it, and not a lot of time between school and work. I was just thinking of trading it into a stealership and to cut my loses at this point. It's been a joy to drive with this much power, and maybe someday I'll build another one just like it! Be on the lookout for a GT-R turbo partout in the upcoming months unless something/ someone changes my mind. Thanks everyone for your help along this journey, it has been definitely a good learning experience. One last video so you guys can hear it's final moments

10-03-2017, 01:55 AM	#15 (permalink)
rovert Base Member Join Date: Nov 2015 Location: Australia Posts: 64 Drives: 08 Skyline 370GT Rep Power: 10	Mate, thats really, really sad to hear. Could you possibly throw a used engine into her from a wrecker? __________________ 08 Skyline 370GT SP Coupe 5AT: Diy TT

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[FOR SALE] Turbos	NIZZING	Parts for sale (Private Classifieds)	1	10-16-2016 09:03 PM
[FOR SALE] Turbos	NIZZING	Parts for sale (Private Classifieds)	0	08-11-2015 03:30 PM
[FOR SALE] Someone please buy my turbos!	NIZZING	Parts for sale (Private Classifieds)	3	11-12-2014 08:47 PM
EFR Turbos	frydrce	Forced Induction	34	08-30-2012 09:43 AM
somebody who knows a lot about turbos please help	kevin1985912	Forced Induction	15	10-05-2010 11:00 AM