GTM Stage 1.5 supercharger build

370Zsteve

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SOLD MY Z MARCH 2018 - another Core OG moves on - new ride 2019 Z Corvette Grand Sport - no mods necessary but already have eyes on HFC and intakes LOL IT NEVER ENDS.

Mkai0

Agreed, those are great numbers. Remember, I have an AT and an HR. 11psi on a VHR is like pushing 13 psi on an HR, which would equal more hp. You know as well as I do Baer that dyno numbers can very greatly. I do know I gained 200 whp from baseline. Please remind us again how much horsepower you were pushing in your old 7AT setup??

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Eibach, Tanabe, Blitz, Vertini, GTM stage 1.5 SC, Aquamist, Invidia, Alto built 5AT, Edge Racing, Racelogic, GTM driveshaft, 440 whp in 101F TX heat..

Baer383

I had 480 to the wheels with my old car (7at)500 with meth.

You have Aquamist in your signature line if you are doing 450 on meth @ 10 psi somethings wrong.

And I don't use meth on my Nismo.

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2013 ZL1

754 rwhp 747 rwtq

Mkai0

My meth setup is for safety, not tuned for it (50/50 water/meth). I could easily run a slightly more aggressive tune and squeeze out 30 more horses. My 10psi would be like 8psi for your car (VHR). You do the math here. I can also easily run a smaller pulley to push me to 500whp mark, but the block is not built just yet. We should meet up for a fun run sometime, I think you would be surprised!

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Eibach, Tanabe, Blitz, Vertini, GTM stage 1.5 SC, Aquamist, Invidia, Alto built 5AT, Edge Racing, Racelogic, GTM driveshaft, 440 whp in 101F TX heat..

Baer383

I think alott of you guys are going to be surprised when I get my car back on the dyno ,I have some new tunes for my car that I think are going to be pretty good B/C all I have is the 1.5 kit and my tune,John from Z1 thinks I'll be able to get 10-12 RWHP pushing me to 525 RWHP 400 RWTQ

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2013 ZL1

754 rwhp 747 rwtq

elperuano

Settle it on the streets! Finally some action going on around here!

Mkai0

Haha, yes.. lol.

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Eibach, Tanabe, Blitz, Vertini, GTM stage 1.5 SC, Aquamist, Invidia, Alto built 5AT, Edge Racing, Racelogic, GTM driveshaft, 440 whp in 101F TX heat..

Baer383

Naaaaa

I'll leave it on Z1's dyno maybe during Z nationals.

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2013 ZL1

754 rwhp 747 rwtq

Mkai0

What kind of cats were you using when using when you did this 11lb run? Note my compliment from a year ago for how well your old car did as an auto.

GTM Supercharger Stage 1.5 - YouTube

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Eibach, Tanabe, Blitz, Vertini, GTM stage 1.5 SC, Aquamist, Invidia, Alto built 5AT, Edge Racing, Racelogic, GTM driveshaft, 440 whp in 101F TX heat..

Baer383

The old car had stock cats and it ran well and I got a lot of experience tuning on it and applied what I learned to my Nismo.

I have stock cats on it the Nismo,after I made the 516 I called Sam and told him he said he wasn't surprised ,he said once you find the tune the car likes numbers like that will so up.

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2013 ZL1

754 rwhp 747 rwtq

Motinatan

hi baer383 i just finish my project Gtm stage 1.5 sc with 8 psi and i have 514.8rwhp and 50 kgm and no cat is installed

what r u doing abut the fuel starvation problem ? its a really bad thing . i dont know what to do . i looks like theres no solution for thet issue

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Baer383

We just changed other tables before we started playing with the fuel comp tables,the 255lph pump and the 650 injectors are enough to provide fuel up to 530-540 before you start having serious problems.

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2013 ZL1

754 rwhp 747 rwtq

fryzia23

Right now Im seeing 10lbs max boost on 88mm pulley 93 Octane since I installed stage1.5 s/c kit. This thread makes me wonder whether to switch to cats or leave the test pipes on before I get the car tuned in 3 weeks.

I might switch back to hfcs that I still have and see if theres any difference.

Baer, do you think I would see more boost with hfc/cats?

Baer383

You will burn out HFC before stock cats,and Sam told me to use the cats so I did and still have no problems so far.

I am running the 88mm pulley seeing 11-12 lb's depending on temp outside.

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2013 ZL1

754 rwhp 747 rwtq

fryzia23

Yeah I'm aware of the HFCs not lasting long. I'm going to install them temporary just to see if any difference. If I see more boost with HFCs then deffinitely will pick up factory cats.

If you get 11-12 lbs of boost with 92mm pulley then I should be getting more than 10lbs with 88mm.