at what RPM do you see full boost or at least 8psi?

 

I'm kinda surprised about the performance of the welbro255 cuz I was thinking about running a CJM twin pump, if fails.... although it worked great for the last few runs on the dyno.. I didn't drive the car yet nor seen the full dyno sheet... all I know was a phone call from the shop saying your z made this much and there is a vid on there wed page... I was kinda busy for the last week so I couldn't make it to the shop, so I will be there on monday to see everything. I will post all the dyno sheets with the AFR and boost, but what surprised me the most was the torque #s. I heard that this kit would create back pressure and the torque would be higher than the HP #s, but that's not the case with my build ???? what do you guys think?

 

i think the problem is when you get closer to 600whp with more boost thats where the back pressure starts to build up

 

nice... thanx konrad for the info... I think this is the most I want to go for now since I'm tuned on UPREV. Next step would be the Haltech platinum PnP OEM ECU replacement, water/meth, and more boost on the same GT35. I'm still thinking of the FP GT3794r to replace the one I have, but from what I have seen from it; in one of the threads. It was a total fail. More lag, but no significant power change. as for my goal "since I was more of a dreamer when I started the thread" I went back to real life to figure the numbers I can realistically make which is 590-600whp with water/meth.

 

I wouldn't upgrade to the gt37. Waste of money. If anything you can get faster spool and way more on top with a 6266 precision turbo. You could even try their 6466 but 600hp should be no match for a 6266 with fast spool. That's what I plan on switching to from my 6765 since I never run a street map to fully use my 6765. The bonus is the turbo is probably 700$ less than that garrett turbo.

As for the walbro. With a turbo system Hal was telling me he usually runs out low 500hp range with a walbro 255. Of course each one is slightly different so some might flow a little more some a little less. 517hp on a single walbro is very possible but I wouldn't think there is much overhead. The aero 340 or walbro 400 will both put you at 600hp with pump gas.

I didn't watch the video but I'll check out the dyno graph when you post it. Congrats!