9.85 @ 142.99 Low Boost ! 620hp. Stock Motor *Record*, Stock Transmission Stock Suspension
Low Boost ! 620hp. TestnTune Atco Raceway 9-26-09 Stock Motor "stock ports" stock Mazda Transmission Stock Suspension *Record*
9.78 @ 143.93 Mazda Rx7
rotary vs. piston May 22, 2010
Why I picked the GT35R for my RX-7 over the stock twin turb
I cover the basics of turbochargers in simple terms to explain why I chose the GT35R over T04Z or T78 or T88 etc. It's all about air flow. Sure there are technologies that make the turbo more efficient in more applications but the turbo is most efficient in an area known as the compressor map. Exhaust back pressure plays a huge part when dealing with quick spool small turbos. Large turbos deal with spool up and lag (commonly description) I chose the GT35r for near stock spool up with more efficient 400 hp generation
26 PSI RX-7 GT35R Single Turbo
Ever wonder what happens if you hit fuel cut at 26 PSI on a turbo RX-7? Watch me do it on accident while tuning. For those wondering, I had the ECU set to 20 PSI expectation and wastegate to 26 PSI. ECU will go 3.5 PSI over its limits before it cuts the fuel. Small logical error can make a huge difference. I got lucky. I attribute a large part of that to the pre turbo water injection keeping my knock low and combustion temps low while tuning.