Jump to content
SAU Community

Recommended Posts

Hi guys, also on the same GTR, at the mechanical inspection the guy said that the cam gears had been installed the wrong way. ie., retarding the intake and advancing the exit instead of the other way around. He could see this as it had a clear cam cover.

Do you think this could have damaged the engine at all?

The guy who owns it has been driving it around like this for a year without noticing anything untoward. The GTR does feel a bit lazy though. The mechanic said that if he adjusted the gears the correct way, I should expect to come onto boost earlier, making it more responsive. Will this need a whole new Power FC tune again as he says? He is quoting me $800 for the whole job.

Cheers. Much appreciated.

It shouldnt cost that much go to a diferent workshop try creatd, race pace or rev zone also hpf in dandy 800 is a bit rich should be around the 300 mark

It shouldnt do any damage just drive like a pig

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I see... Any idea how much fab work is required? I note the Hygear megathread but its like 900 pages
    • I should try the experiment you're talking about, the throttle switch is still there carried over from the R32 and it's still all wired up but after I did the whole intake manifold refurb and had to recalibrate the TPS I managed to somehow get the idle switch reporting activation at 0.22V, then when I adjusted it to 0.45V for idle it decided the engine was permanently no longer idling which caused some very weird behavior, closed loop idle was disabled so it would basically be at the whims of the cold start valve and whatever the base timing table was at. Then just unplugging/replugging the TPS with the ECU live caused it to relearn the idle TPS position and decide 0.45V was idle. Presumably there's nothing in the TPS that allows for the throttle switch to "recalibrate" like that, not easily at least.
    • Duh... to answer my own silly question, it's actually described in the FSM... ...400 pages away at the end of the manual, for RB25DE/DET signal descriptions, it cites the TPSwitch signal action, is dependent on the TPSensor value ~ this tends to infer the builtin POT voltage signal is the primary, and the switches are fallback/secondary should the POT fail/TPSensor signal lost (and switch alone with no TPSensor signal allows for base idle speed setting).... makes sense... they (TPS units) used to fail/wear the POT with time, they're not exactly built to last ~ having the switch as a redundancy gets around this...(or, it's less likely both signals would be lost as they're on different power rails)... and of course wrt RB26DETT, you have to electrically disconnect the IACV solenoid from the harness, to defeat idle air control...  
    • Dose is unaware just how much fun 145-150kw would be in a 2.5L NC MX5. It would be one of the most fun things to drive to ever grace SAU.
    • Same thought crossed my mind ~ depends on how one connotes 'stalling'...ie; gets a rough/stumbling idle as it get warm until it stalls... or... idles ok and simply falls-over when it gets to temp... ...you can test the whole circuit with a couple of resistors ...unplug coolant temp sensor, bridge terminals with a 2K7 resistor (ECU will do cold start), or with engine warm bridge with a 330R resistor (ECU will consider engine to be at normal operating temp)...it's a quick way to check wiring integrity/ECU response when you don't have a multimeter handy ...
×
×
  • Create New...