TwinTurbo.NET: Nissan 300ZX forum - Finally had my test and tune session @ Specialty Z yesterday
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Subject Finally had my test and tune session @ Specialty Z yesterday
     
Posted by SpeedyZX on August 06, 2013 at 12:29 PM
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Message I am glad that they go through the car with a fine tooth comb. They found several vacuum leaks, fixed them, and also discovered that my turbo inlet pipes needed to have the inside diameter grinded out. This "reducer" ring is there to allow its use with stock-sized turbos and inlets. I have HKS GT2530 BB turbos so this was posing a restriction. We didn't know that we were supposed to do that so the boys fixed this for me.

Finally, we thought that we were ready to get on the dyno. Well, once on the dyno, Greg and Seb noticed that the fan clutch was engaging and staying on even when the engine was running at normal temperatures. It's only supposed to engage when the car is running at higher temperatures. The team had to unstrap my TT and take it back inside and replace the fan clutch. I just replaced this a couple of months ago. It was a new clutch.

After replacing, we got the car back on the dyno and pulled 5 runs on 91 octane CA piss gas and 4 runs on 100 octane. Needless to say, I was one happy Z owner.

My TT getting strapped to the dyno...



468.13 HP and 426.32 pound of torque @ 16.24 PSI.

Adding the go-fast juice, 100 octane awesomeness

567.49 HP and 513.60 pounds of torque @ 20.53 PSI

Afterwards, Greg took me out for an obligatory drive and holy crap, I knew that my car would be fast, but OMFG. Before the tune, I would make sure to not boost over 4-5 PSI. Now, 15 PSI on pump gas is pretty crazy. 20 PSI on 100 octane gas, just insane.

I got their ECU chip and clock MAP switcher.

Thanks to Greg, Seb, LJ, and John. You guys rock and I see why you guys are among the elite group of Z32 masters. You guys should have a 20th degree black belt in Z-ology or something. :-)

I'll post some videos from inside the Z and outside the Z later.

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I eat rice, I don't put rice on my car!

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