89 MJ Posted March 2, 2022 Share Posted March 2, 2022 I have done some reading on the high altitude CPS for Renix trucks. It appears that it does not add more power at WOT, but it does make it idle smoother and cruise at speed easier. I am around 500-1000 feel in elevation. Can anyone confirm that it will not ping at that elevation? Is it actually worth doing? I plan on doing that with Cruiser’s dizzy index and a bored TB. I have the answer now for the 4.0. Does anyone have experience on it for a 2.5? Link to comment Share on other sites More sharing options...
cruiser54 Posted March 3, 2022 Share Posted March 3, 2022 shouldn't be an issue at lower elevation. The system has a knock sensor anyway. Link to comment Share on other sites More sharing options...
89 MJ Posted March 3, 2022 Author Share Posted March 3, 2022 6 minutes ago, cruiser54 said: shouldn't be an issue at lower elevation. The system has a knock sensor anyway. Perfect, thank you. In your opinion, is it worth doing? I do spend a lot of time driving at around 60 mph. Link to comment Share on other sites More sharing options...
cruiser54 Posted March 3, 2022 Share Posted March 3, 2022 Definitely worth doing. Link to comment Share on other sites More sharing options...
89 MJ Posted March 3, 2022 Author Share Posted March 3, 2022 3 hours ago, cruiser54 said: Definitely worth doing. Thank you sir! Link to comment Share on other sites More sharing options...
ghetdjc320 Posted March 4, 2022 Share Posted March 4, 2022 @cruiser54 do you happen to recall the degrees of advance that cps is good for? I was thinking 3 or 6 but don’t remember Link to comment Share on other sites More sharing options...
cruiser54 Posted March 4, 2022 Share Posted March 4, 2022 I think it was 5* in high altitude configuration. My mod takes it a few degrees more than that. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted March 4, 2022 Share Posted March 4, 2022 Thanks Link to comment Share on other sites More sharing options...
89 MJ Posted March 5, 2022 Author Share Posted March 5, 2022 Good to know. I’ll be looking at ordering one soon. Thanks. Link to comment Share on other sites More sharing options...
big66440 Posted March 7, 2022 Share Posted March 7, 2022 On 3/5/2022 at 5:57 AM, 89 MJ said: Good to know. I’ll be looking at ordering one soon. Thanks. You could modify a non high altitude easily as well, I did it on mine and haven't had any issues,BTW I highly recommend it! Link to comment Share on other sites More sharing options...
eaglescout526 Posted March 7, 2022 Share Posted March 7, 2022 Ok I know 4.0L benefits from this but has any of my 2.5L brothers done this? Link to comment Share on other sites More sharing options...
89 MJ Posted March 8, 2022 Author Share Posted March 8, 2022 38 minutes ago, eaglescout526 said: Ok I know 4.0L benefits from this but has any of my 2.5L brothers done this? I added it to the title and original post to help you out. I would guess it has the same effects. Link to comment Share on other sites More sharing options...
eaglescout526 Posted March 8, 2022 Share Posted March 8, 2022 Hahahah thanks! Link to comment Share on other sites More sharing options...
cruiser54 Posted March 8, 2022 Share Posted March 8, 2022 I've done it on a 2.5. Link to comment Share on other sites More sharing options...
eaglescout526 Posted March 8, 2022 Share Posted March 8, 2022 Any noticeable improvements? Link to comment Share on other sites More sharing options...
cruiser54 Posted March 8, 2022 Share Posted March 8, 2022 Little more zip. Link to comment Share on other sites More sharing options...
eaglescout526 Posted March 8, 2022 Share Posted March 8, 2022 Neat. I might have to give it a shot. Link to comment Share on other sites More sharing options...
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