SCT Tuning.....

32valves · Aug 28, 2007

I gues I just got the full PRP moved from another car to my Mach1. I was wondering if anyone has any input on things that I should change that are simple basics or things to NEVER touch. I dont have enought mods to ned a dyno tune so right now I'd just like to tweak the timing some. But I'm not sure what settings are safe on the Mod v4 4.6

EDIT: Also what is a 2 step rev limiter? My last car didn't support this.

BlueGT4.6 · Aug 28, 2007

a 2-step rev limiter is for drag race launches. You can dial that into a specific RPM where you launch from. When it's dialed in with the tuner, you can floor the clutch and gas, and the RPM will remain at your 'launch RPM.' Once the car starts rolling (.1 mph), it disengages and goes back to normal. That way you don't have to watch your tach and the light tree at the same time. I think that's what it's called anyway...

32valves · Aug 29, 2007

Well I played with it yesterday and it turns my neutral rev limit into my full time rev limit. Any Ideas what i did wrong?

BennyBlown2v · Aug 29, 2007

32valves said:
Well I played with it yesterday and it turns my neutral rev limit into my full time rev limit. Any Ideas what i did wrong?

You didn't set it in the tune, you have to go into advantage 3 and load the two step value file, otherwise it doesn't know what to do.

So when you say you "guess" you have the PRP....do you, or do you just have an Xcal2??

32valves · Aug 29, 2007

Sorry I ment "Just got".

Ryan@SCT helepd me with the load values. If all went right then tonight I'll be trying her out on the way home.

2000fordstanggt · Aug 29, 2007

ive seen in the manual for the xcal 2 a program to adjust settings on your computer screen rather than on the tuner screen. i cant find that anywhere on the sct site. anyone have a link?

DBMSTNG · Aug 30, 2007

32valves said:
I gues I just got the full PRP moved from another car to my Mach1. I was wondering if anyone has any input on things that I should change that are simple basics or things to NEVER touch. I dont have enought mods to ned a dyno tune so right now I'd just like to tweak the timing some. But I'm not sure what settings are safe on the Mod v4 4.6

EDIT: Also what is a 2 step rev limiter? My last car didn't support this.

get a wideband 02 sensor and do some datalogging of the a/f ratio. adjust it to 13.0 under load. you aren't going to be able to increase the timing too much as the car is already tuned for premium gas. but you should be able to add another 2 degrees total timing. there really isn't anything else that's going to get you more power.

SCT Tuning.....

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