GTM Stage 2 S/C on Meth 507whp/357wtq

Jerggy13

I really like what you did with the fender liner. It reminds me of exactly what the inner fenders of my VR-4 looked like. Those were there for the SMIC's though. It makes sence and it works. It looks like a great place in which you could mount a huge oil cooler.

Pretty similar:

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Take it like a man. Momma Sed Like the rain. Like a kidney stone.
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Z eliminator

How much boost are you running ?

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12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.

axio

Sam told me it was 11psi, IIRC

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GTM Stg II SC w/ Aquamist methanol injection, GTM oil cooler, Berk HFC, Stillen CBE, BC ER coilovers, Hotchkis sways, TWM short shifter, Clutch spring mod, CarboTech XP8s

Z eliminator

So you made 466 rwhp @ 11 lbs boost. That seems kind of low. Is your car a 7 AT ?
i thought the UAM car made 507 rwhp. ?

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12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.

kosstick

Im making 463ish at 8-8.5 if thats any consolation

theaudir8fan

interesting, i wonder if it's because of 91 oct. My HR did 450whp at 10psi, so you are not the only one with lower output numbers. Altho that meth injection system is seriously impressive, did not know it can bump up almost 40whp that easily

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

kosstick

Not sure about that honestly, Seb at Specialty Z tried a race map with 100 octane and I barely got any improvement ( I do have the largest pulley available though at 96 mm so I am maxed out at boost)

axio

I'm a 6MT. I was running 91. I thought 466 seemed low too...

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GTM Stg II SC w/ Aquamist methanol injection, GTM oil cooler, Berk HFC, Stillen CBE, BC ER coilovers, Hotchkis sways, TWM short shifter, Clutch spring mod, CarboTech XP8s

theaudir8fan

No idea, hopefully someone from GTM can give us some info.

Haha, i know how you feel, my target was 450+, but i did expect a bit more with the stage 2 and 10psi. When i asked Sam for the reason, he said it has to do with 91 oct, wish i can understand it better to know exactly why.

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

Nixlimited

CA 91 is literally the worst gas in the nation. It wouldn't surprise me if a STG 2 here got 40 WHP less than 93 octane cars in other states.

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Car Sold! Pleasure being a part of the Z community.
New ride: 2015 GT-R - 647 WHP / 641 WTQ (e85) & 543 WHP / 519 WTQ (91)

Z eliminator

im hoping that mine will make 500 rwhp before the meth spray. and 540 with the spray @ 11 lbs boost on 94 octane.

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12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015.

NYBladeZ

That would be amazing, though isn't 11psi pushing it assuming this is before an engine build.

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Zat_Zuma

Doesn't the meth/water injection interfere or cause damage to the stock MAF sensors? If anything they will be cleaner

How much are the IAT's being reduced with meth injection before the MAF and before the intercooler? Which leads into the next question: how much are you able to increase timing from the lowered IAT's?

Have you measured the effect of meth injection on the EGT temps and by how much they can be lowered?

Another great idea from GTM and clean install. When will the kit be availble from GTM?

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[B]2009 & 2017 370Z Touring Sport Autos SOLD

axio

Zat Zuma,

I haven't measured any temps, sorry. I don't have the equipment. Not sure if an UPREV cable will let me measure temps but GTM never included it with my kit (which is part of the GTM Stg 2 kit) and I've asked for it but they still haven't sent one after a few months. Sam or anyone else from GTM, if you guys can send that over to me, please do.

As for the car itself, it ran well. The oil cooler works. I asked GTM to open up the fake vents up front to allow more airflow and they did that, which is great since the oil cooler sits directly behind that. At the track, I didn't have oil temp issues. The sessions were 20-25 minutes long, outside temp was mid 60's, so while I know it isn't hot out, I was still able to mash it for a long period of time. The highest temps I saw were 240, but most sessions I saw 220.

On the long back straight that leads uphill back into turn 1, I was able to hit 120, and this E46 M3 wasn't able to keep up. He was directly on my *** exiting turn 11 but I was able to pull away. That being said, the driver was pretty awesome and shouldn't have been in my beginner group so as soon as we entered the corners, I waved him to pass. I was definitely slower on this same straight vs a GTR but not by too much. He was definitely faster though. Again, in the corners, he destroyed everyone on the track.

But yeah, the car works, it ran through a ton of meth though. I ran 5 sessions, basically burned through two gallons of meth.

Just wanted to say that the kit works, the oil cooler with the open fang works, the louver behind the oil cooler works...

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GTM Stg II SC w/ Aquamist methanol injection, GTM oil cooler, Berk HFC, Stillen CBE, BC ER coilovers, Hotchkis sways, TWM short shifter, Clutch spring mod, CarboTech XP8s

fuct

good to hear!!