GTM Performance Engineering: VQ37VHR Twin Supercharger System

SAM@GTM

A little clarification. The car made 480whp, 360wtq on the first pull. In my opinion this is very good results for a new system on 91 octane and on a simple base map. Keep in mind that the ultimate goal right now is to stabilize the car and make sure that everything is functioning correctly. The system is far from done. So far all we have is about 7 - 9 dyno pulls since we are looking into VVEL lift variation between bank 1 and bank 2. This VVEL issue is definitely separate from the Twin Supercharger as the system is very unobtrusive and the VVEL system is not touched during installation. Also, having a VVEL code means that the engine is not running properly and is not ingesting air like should.

Right now, our main focus is ensuring that the system works properly and that this VVEL code is resolved. Once that is taken care of, we will be working on getting the power and torque. For now, that is not our primary concern.

Sam

FPenvy

rome wasnt built in a day lol system sounds awesome i watched the youtube vids last night. keep up the good work. i'm excited to see what kind of future results you guys get.

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324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler

SAM@GTM

Update:

After spending the majority of the day checking the entire system for the cam timing issue, checking engine oil pressure all the way to pinout testing of the ECM. The only thing left in the system is the valve control solenoid. Everything is pointing to a failure in this component. Unfortunately, this solenoid is located behind the main supercharger bracket and will require the complete removal of both brackets to get to it. Below are a couple snapshots of what is happening with the solenoid. The one that is labeled "No Good" is the car we're working on. Notice how bank 2 solenoid voltage is flat lining vs. the "Good" one that is from a properly working car for comparison.

Once we get this resolved, we will continue with the tuning.

Sam

Attached Images

	Good.JPG (250.3 KB, 92 views)
	No Good.JPG (330.8 KB, 90 views)

Rusty

Bummer!

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"The Difficult Anytime, The Impossible By Appointment Only"
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Nissan370

hehe what fun would it be to build a kit from scratch and not run into a few bumps along the way

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370z vsr motorsports single turbo/built motor 9.1cr 525rwhp/450rwtq @ 10.5psi (stock maf maxed out)

LukasC

Hows it coming get the problem fixed?

SAM@GTM

Update:

When the car threw the cam timing codes, we contacted the owner to advise him of the situation. While we had completed the system and the car was running on time per the owner's requested time frame, the car did have an issue that needed to be resolved. The owner decided to have us put the car back to stock instead of diagnosing and solving the issue to get the car running properly. Therefore, the results are on hold for the time being.

The good news is that we are 60% done restoring the car back to stock and we have another car ready and available to get this system installed. So, our press release should happen sometime next week.

Sam

blackonorange

Wow really back to stock? That's the most anti climatic ending this coulda had

Mr&Mrs

Wow, bummer!

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Project Z <--Click - Check out the link too many mods to list!

show2nite

I want to know what made homeboy change his mine when the kit is practically installed, and then to have a Engine problem which could of been resolved. However things may have boiled down to resources $$$$$$ Who knows.....that Sucks!

theaudir8fan

well if he wants a shot at getting a new engine under warranty, the car can't just go in with 2 SCs hanging on it

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2007 Infiniti G35S 5AT PG; GTM; KW; Hotchkis; Stillen; Berks; SPC; GT-spec; SxExCx

Mike@GTM

Why does he need a new engine?

The car will be leaving in the same condition it arrived in...it didn't come in with a blown engine, and it won't be leaving with one either.

theaudir8fan

Well i was referring to getting it covered under warranty at a dealership. But if the repair requires disassembly of the engine itself, they will probably just warranty for a new long block

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2007 Infiniti G35S 5AT PG; GTM; KW; Hotchkis; Stillen; Berks; SPC; GT-spec; SxExCx

DEpointfive0

Don't get so butt hurt brother... It's the Internet!


I'm sure the engine took a hell of a beating with that amount of boost and R&D done on it




If you want a CA car to work on, you can have my 370Z, 7AT to test on...

Point blank: I won't pay you anything until it works though

(I believe the owner of this car had an ongoing rant with you, not looking to have one of those, hence the non payment until the car works, lol)

elperuano

Damn that sucks. So did OP get charged for any of this? He basically paid to have a twin charger on the car and then take it off before ever even driving it? I guess in the end it still worked out for Gtm! Wonder what changed the OP mind