GTM Performance Engineering: VQ37VHR Twin Supercharger System-First Look

SS_Firehawk

Just got off the phone with Mike@GTM. Had to personally thank they for taking my money . I asked them a few questions, some I'm sure you all might be interested in. Of course I asked when I should start seeing headway, and I was correct in that they should be getting balls deep into things around then. They have some tests to do on their shop cars as well, so my car is freeing up their shop car time . They already have the complete kit so there is no wait time for any of the parts. I still think I'll be checking my email 50x per day anyways.

He mentioned my vehicle making very respectable numbers. Big relief there as I replaced the O2 sensor and didn't have a chance to put in the new spark plugs, put the manifold back on, or change the oil. I explained that to him and helped clear up my email to him and why I was so concerned. I didn't want them chasing problems I gave them. Mike said they didn't see any issues with the baseline, as i gave a good indicator of overall health.

Next question was regarding my LTH's. HE got in to explaining the flow benching they did when first testing the VQ37VHR. The engine is really efficient at moving air and the stock headers do a damn fine job. When we start opening things up even more, the air can possibly blow right through the heads, especially with VVEL. He said they plan on doing some fluid dynamic testing to try and match the housing and pulley's to what I have running. They really don't have an accurate picture on what to expect until they start testing. He seemed confident they can get everything working properly. I'm all for taking it where no one else has.

If push comes to shove, I have my stock headers/stock cats in the garage, I would prefer not to. They're ugly haha. I'm so superficial. Who knows, maybe I have to run the kit balls to the wall to get it working with the headers, bring it!

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