The Official Overboosted Overlords Club
02-01-2009, 02:45 AM
#303
Dongbag extrordinare
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02-01-2009, 12:36 PM
#305
Fuel trims can build and work against you a bit when you have a boosted application and significant environmental changes.
People have seen changes in performance on completely stock RX-8s after having their trims jacked up by variations in their driving habits and weather.
Mine even wander a bit from time to time.
If you can't wait for the PCM to re-trim itself, just reset it.
Stealth - hold on if you can for just a little while longer.
Sorry about the delays.
People have seen changes in performance on completely stock RX-8s after having their trims jacked up by variations in their driving habits and weather.
Mine even wander a bit from time to time.
If you can't wait for the PCM to re-trim itself, just reset it.
Stealth - hold on if you can for just a little while longer.
Sorry about the delays.
02-02-2009, 03:19 PM
#314
Dongbag extrordinare
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Have you talked to Ray about the ignition?? I have used the MSD 8247 coils with @13psi of boost and experienced detonation(bad tune/not enough fuel?) before the coils quit working.
-Yambo
-Yambo
02-02-2009, 07:22 PM
#315
Hey guys...my car was running crappy today....I have not been going into boost, especially since my turbo is on it's way out and it is not properly tuned.....But my vacuum is at 14-15...seems kind of low. Would this have anything to do with my crapping out turbo? It's not like it idles badly or stalls out though...just the usual rotary idle. Maybe I'm worrying for nothing.
02-02-2009, 07:56 PM
#317
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Hey guys...my car was running crappy today....I have not been going into boost, especially since my turbo is on it's way out and it is not properly tuned.....But my vacuum is at 14-15...seems kind of low. Would this have anything to do with my crapping out turbo? It's not like it idles badly or stalls out though...just the usual rotary idle. Maybe I'm worrying for nothing.
What is your idle at when you get the 14-15 vac? I know when my idle dips down to 700 or so my vac goes down some. At 1k I have 16-17 and when the car is idleing at 1.5k I have 18.
02-02-2009, 08:09 PM
#318
but completely warm I see the 14 when the idle dips to 700...occasionally a 13, but rare. It is usually at a 15...and rarely see 16. I have not experienced any detonation either....before I installed the turbo kit I took it to mazda to have it checked out and they didn't feel the need to do a compression check.....they seafoamed it though.
What is the lowest unacceptable vacuum reading for FI? Maybe I have a boost leak, but I've checked my lines numerous times.
02-02-2009, 08:59 PM
#319
I've been reading this thread MM made about his vac readings...
https://www.rx8club.com/showthread.p...+vacuum&page=6
maybe it's not an issue really at all? I do know the idle vac started to drop once the turbo was behaving strangely. I guess I will have to get it rebuilt and see the results...
anyone got anything else?
https://www.rx8club.com/showthread.p...+vacuum&page=6
maybe it's not an issue really at all? I do know the idle vac started to drop once the turbo was behaving strangely. I guess I will have to get it rebuilt and see the results...
anyone got anything else?
02-02-2009, 09:20 PM
#321
yeah no kidding! I have it mounted on my steering column, so its staring me right in the face, lol
02-02-2009, 10:44 PM
#322
02-02-2009, 10:50 PM
#323
Damn, after hearing about your guys vacuum numbers, my motor is badass! I get 21-22 inches cold, 18-19 warmed up, 17 at the lowest with both rad fans howling and the A/C on. My motor is pretty new with under 4,000 miles, tho. Premix and Sohn adapter FTW.
Kane- I wish I had your problem with running too rich. I run too lean when I go to 12psi. I've tried a few runs but every time it wants to lean out on my. Still trying to get Jeff to work with me on a tune....
Kane- I wish I had your problem with running too rich. I run too lean when I go to 12psi. I've tried a few runs but every time it wants to lean out on my. Still trying to get Jeff to work with me on a tune....
02-02-2009, 10:50 PM
#324
^ok, thanks Kane...just getting paranoid I think when I hear others running 17's for vac at warm idle
edit: yeah paranoid cuz of ppl like CW...lol. Damn you and your sweet vac readings!
edit: yeah paranoid cuz of ppl like CW...lol. Damn you and your sweet vac readings!