Nissan 370Z Forum - View Single Post - High Altitude, heat, tuning and intake/exhaust

BlackZeda · 12-12-2011, 11:56 AM

I have read a lot about the Z's heat issues in this forum and I definitely have something going on in the summer. Whenever the outside temperature is 83F or above, or the oil temperature approaches 230F the engine performance degrades quickly (never limp mode though). Specifically from a stop my Zeda will as best as I can describe it "bogs down" to the point where I think the engine has completely stopped. After a few seconds the engine regains its composure, but I still don't feel I am getting acceptable power from it from then on.

Because I live at high altitude it makes me wonder if this is both a heat and air (oxygen concentration) issue.

I had a great, long conversation with Bill at MAC Autosport in Parker, CO and am arranging an oil cooler install in the near future. We also delved into intake/exhaust and tuning options as well, which would seem to make sense in resolving the issue and enhancing the performance.

Has anyone experienced my issue at altitude and/or how have modifications short of FI affected your Z?

Thanks in advance for any insights (and referrals to other threads that I have missed)!

12-12-2011, 11:56 AM	#1 (permalink)
BlackZeda A True Z Fanatic Join Date: May 2011 Location: Englewood, CO Posts: 1,109 Drives: 19 Audi TT RS Rep Power: 22	High Altitude, heat, tuning and intake/exhaust I have read a lot about the Z's heat issues in this forum and I definitely have something going on in the summer. Whenever the outside temperature is 83F or above, or the oil temperature approaches 230F the engine performance degrades quickly (never limp mode though). Specifically from a stop my Zeda will as best as I can describe it "bogs down" to the point where I think the engine has completely stopped. After a few seconds the engine regains its composure, but I still don't feel I am getting acceptable power from it from then on. Because I live at high altitude it makes me wonder if this is both a heat and air (oxygen concentration) issue. I had a great, long conversation with Bill at MAC Autosport in Parker, CO and am arranging an oil cooler install in the near future. We also delved into intake/exhaust and tuning options as well, which would seem to make sense in resolving the issue and enhancing the performance. Has anyone experienced my issue at altitude and/or how have modifications short of FI affected your Z? Thanks in advance for any insights (and referrals to other threads that I have missed)! Last edited by BlackZeda; 12-12-2011 at 12:02 PM.