Greddy Twin-Turbo In Development

jayfightmoves · 05-15-2010, 08:13 AM

Quick update. I'm back from CMP. The car ran perfect. The Greddy twin turbos had zero issues on track, and the tune was solid. With that said we are still struggling with cooling issues. The ambient temps were in the 90s and I was seeing 280 oil temps within 4-6 hard laps. The turbos are adding some heating, but we were having this issue at stock power levels as well. Anyone that is truly pushing the 370 to the limit is painfully aware that this is a Nissan issue not a GReddy issue. I have another round of cooling upgrades in the works. I'll release the details when we get it all together and do some testing.

"How did it feel on track?"

The car is very strong. With a little mid throttle modulation, you can easily manage the spool up of the G20s in a midcorner situation. The extra power made the car a little loose on the 305s, but as soon as the 335s went on ,it was magic. The extra 150hp allowed me to steer the back of the car at will.... even with the huge rubber. Once you begin to unwind the wheel its a foot to the floor linear pull to redline. In the straights when shifting at or near redline, the spool up is almost immediate. I was running with a Porsche GT3 Cup all day. Their car was 2600# 400whp... and on Michelin slicks (we're on R888s). The car sounds amazing! Every time it comes of track a crowd of people gather and comment on the insane wail off the dumps.

Road Atlanta Monday..... I don't look to have truly impressive numbers until the cooling is sorted, and i can get in a rhythm. But, the potential is there. It's clear the power did not upset the car. And the bottom line..... It is a complete blast to drive! ..... more to come.

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05-15-2010, 08:13 AM	#11 (permalink)
jayfightmoves Base Member Join Date: Jul 2009 Location: ATL Posts: 70 Drives: 09 370,Z32TT, 2500hd Rep Power: 16	Quick update. I'm back from CMP. The car ran perfect. The Greddy twin turbos had zero issues on track, and the tune was solid. With that said we are still struggling with cooling issues. The ambient temps were in the 90s and I was seeing 280 oil temps within 4-6 hard laps. The turbos are adding some heating, but we were having this issue at stock power levels as well. Anyone that is truly pushing the 370 to the limit is painfully aware that this is a Nissan issue not a GReddy issue. I have another round of cooling upgrades in the works. I'll release the details when we get it all together and do some testing. "How did it feel on track?" The car is very strong. With a little mid throttle modulation, you can easily manage the spool up of the G20s in a midcorner situation. The extra power made the car a little loose on the 305s, but as soon as the 335s went on ,it was magic. The extra 150hp allowed me to steer the back of the car at will.... even with the huge rubber. Once you begin to unwind the wheel its a foot to the floor linear pull to redline. In the straights when shifting at or near redline, the spool up is almost immediate. I was running with a Porsche GT3 Cup all day. Their car was 2600# 400whp... and on Michelin slicks (we're on R888s). The car sounds amazing! Every time it comes of track a crowd of people gather and comment on the insane wail off the dumps. Road Atlanta Monday..... I don't look to have truly impressive numbers until the cooling is sorted, and i can get in a rhythm. But, the potential is there. It's clear the power did not upset the car. And the bottom line..... It is a complete blast to drive! ..... more to come.