Greddy new install, observations and questions

jaymzs66 · 04-13-2011, 01:44 AM

Got the GReddy install complete, had help from a garage ( won't post here since I'm not sure it's allow since it would be advertising) Those who live in Socal might know Yoshiya and I've seen him mentioned in for forums before.

- A few things I've noticed, with the AFR gauge, on other cars the AFR ratio used to sweep up and down when it had very little load on the engine ( big extremes), on this car it seems pretty stable 14-15 AFR under low load, ~11(stable) with more load. Is this normal for this car? I'm using MM map, though it needs to be tuned with the service.

- One other thing I've noticed is if I'm coasting along in a high gear - well even idle, but happens more in high gear and I take the car out of gear so that's in neutral, it will stall. Any clue if this will go away once my map is tuned more appropriately? I DID also change to the BHR ignition and I'm using the ngk plugs, so is that a possibility?

- Finally, on my boost controller ( aem ) it allows me to set the Waste Gate Crack Pressure.(gAE) I know by setting this I'm essentially blocking the wastegate to allow it to spool a little faster, what is a good value for this? Any Greddy owners want to chime in? **

**Yes, I did the search, the only relevant post I found was Brettus discussing it with MM, but no specific numbers, maybe I was searching for bad keywords, If there is something on this topic I'd be appreciative if you'd let me know or discuss it here. Thanks.

-j

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Brettus · 04-13-2011, 02:42 AM

Quote:

Originally Posted by jaymzs66

- A few things I've noticed, with the AFR gauge, on other cars the AFR ratio used to sweep up and down when it had very little load on the engine ( big extremes), on this car it seems pretty stable 14-15 AFR under low load, ~11(stable) with more load. Is this normal for this car? I'm using MM map, though it needs to be tuned with the service.
-j

sounds about right . You will also notice it go off the scale when you lift off the accelerator .

Quote:

Originally Posted by jaymzs66

-
- Finally, on my boost controller ( aem ) it allows me to set the Waste Gate Crack Pressure.(gAE) I know by setting this I'm essentially blocking the wastegate to allow it to spool a little faster, what is a good value for this? Any Greddy owners want to chime in? **
-j

Not something you can give a value for as it will vary for every setup .Read the instructions and have a play - once tuned of course .
Start small - test carefully !

Quote:

Originally Posted by jaymzs66

- One other thing I've noticed is if I'm coasting along in a high gear - well even idle, but happens more in high gear and I take the car out of gear so that's in neutral, it will stall. Any clue if this will go away once my map is tuned more appropriately? I DID also change to the BHR ignition and I'm using the ngk plugs, so is that a possibility?
-j

Can be normal straight after a reflash - get back to us if it continues after several drive cycles .

jaymzs66 · 04-13-2011, 01:35 PM

Thanks for the reply Brettus, yeah I'm anticipating April 19th as that's when MM posted the next tuning day. I hope a lot of my worries gets resolved. That being said I know the Greddy kit is like a 4 letter word here, but I'm determined to make it work. It gives more than enough power, most of the excess cash I've been spending have been supporting mods which, if i swap turbos would be transferable. ( I am eyeing something like the BNR upgrade if it's still around) 1000$ or so for piece of mind sounds worth it, I wouldn't even care about the extra power.