The NEW "GT35R" from Buschur Racing..
I spoke with robert briefly about this turbo. The secret is a new design compressor wheel that is the same size as the 35r. Current 35r turbos can be upgraded by swapping just the wheel. No current dates yet on when it will become available.
so....since the trim and inducer have to be the same...and david called it a 3582... which would designate that it has an 82mm exducer (if david is following Garrett nomeclature...which he MOST certainly is calling it a gt3582R.)
the modifications to the compressor wheel/Housing will be....a clipped wheel or a different contour of the blade ...which would require a different compressor housing altogether. Since he's making more MID range on the turbo... I would think that he increased curvature of the wheel...and thus has less surface area on the wheel.
Dave,
Could you please overlay AFR, Boost pressure, and correction factor, with your dynograph. Since you are "recreating the wheel" lol. When you give us information like this its pretty worthless. And you might as well just tell people what you did instead of trying to be sneaky. Keep up the testing...just try to be a bit more scientific and humble with your findings.
-HPF Eric
the modifications to the compressor wheel/Housing will be....a clipped wheel or a different contour of the blade ...which would require a different compressor housing altogether. Since he's making more MID range on the turbo... I would think that he increased curvature of the wheel...and thus has less surface area on the wheel.
Dave,
Could you please overlay AFR, Boost pressure, and correction factor, with your dynograph. Since you are "recreating the wheel" lol. When you give us information like this its pretty worthless. And you might as well just tell people what you did instead of trying to be sneaky. Keep up the testing...just try to be a bit more scientific and humble with your findings.
-HPF Eric
The PSI was no disclosed and doesn't need to be, both tests were at the same boost level and same AFR's. AFR's aren't on the sheet either.
Backpressure, the new turbo had less than the standard GT3582 turbo. Quite a bit less actually.
Backpressure, the new turbo had less than the standard GT3582 turbo. Quite a bit less actually.
So, can this new compressor wheel be used in the 3065? I guess so, huh? Probably be a decent spooler, even on a stock displacement engine.
Last edited by sparky; Feb 9, 2007 at 08:07 PM.
Are there any plans to do a custom turbine wheel on this? Perhaps something between the 30 and 35 hotside? Or maybe something a little bigger than the 35 hotside?
Once testing is done, FP will release it's new compressor wheel in 69-118mm versions for everything from Mitsubishi TD06 to Garrett 30 - GT45R. Until initial demand has been met, supplies will go to make new turbos first. Later, retrofits to your existing turbos may follow.
After collecting this data we pulled the turbo off the car, cartridge only. Installed the new turbo into the same turbine housing and put the car back on the dyno.
Backpressure, the new turbo had less than the standard GT3582 turbo. Quite a bit less actually.
I haven't heard of any thoughts of a different turbine wheel.
Backpressure, the new turbo had less than the standard GT3582 turbo. Quite a bit less actually.
I haven't heard of any thoughts of a different turbine wheel.
Last edited by 240Z TwinTurbo; Feb 11, 2007 at 08:53 AM.







