Ditching Procharger... Paxton 2200 or VMP GEN 2

[SolarFlare]

Hopefully you're adding good shit and not the gas station octane boosters. I usually sprinkle a bit into my tank when datalogging so I can provide the tuner with good data. Nothing worse than doing 3 pulls, going home and checking the data to find you were seeing some knock at times due to gas. Though gas down here is fairly good.

Sponsored

 

[Bartly]

to procharger 6mt guys, do your cars go full lean off throttle? ever since install my car doesn't really engine brake.. when I go off throttle the car keeps running at stoich AFR. which i'm assuming is related to the rev hang issue i've been having.

weird thing is, if i wind it past 3k rpm the revs drop instantly at clutch in, and AFRs peg full lean. which is what it should be? but if i clutch in at 2800 rpm the car hangs revs like mad.

http://i.imgur.com/EV4JnlI.png

I had symptoms that sound like what you have going on, can't comment on the log. A new tune fixed my car not engine braking and other things.

 

[markmurfie]

to procharger 6mt guys, do your cars go full lean off throttle? ever since install my car doesn't really engine brake.. when I go off throttle the car keeps running at stoich AFR. which i'm assuming is related to the rev hang issue i've been having.

weird thing is, if i wind it past 3k rpm the revs drop instantly at clutch in, and AFRs peg full lean. which is what it should be? but if i clutch in at 2800 rpm the car hangs revs like mad.

Not sure whats up with that log but I downloaded it and tried extracting and renaming to .csv and neither work.

 

[jlwilson10609]

to procharger 6mt guys, do your cars go full lean off throttle? ever since install my car doesn't really engine brake.. when I go off throttle the car keeps running at stoich AFR. which i'm assuming is related to the rev hang issue i've been having.

weird thing is, if i wind it past 3k rpm the revs drop instantly at clutch in, and AFRs peg full lean. which is what it should be? but if i clutch in at 2800 rpm the car hangs revs like mad.

http://i.imgur.com/EV4JnlI.png

I thought this behavior was intentional and normal. I will drive on lunch but think mine behaves the same. Not making it the correct behavior just perhaps the same.

 

[donmcgowen]

Damn Jaehead, that was over maehead lol.

 

[Jaehead]

Not sure whats up with that log but I downloaded it and tried extracting and renaming to .csv and neither work.

this should work

 

[diablomatt]

to procharger 6mt guys, do your cars go full lean off throttle? ever since install my car doesn't really engine brake.. when I go off throttle the car keeps running at stoich AFR. which i'm assuming is related to the rev hang issue i've been having.

weird thing is, if i wind it past 3k rpm the revs drop instantly at clutch in, and AFRs peg full lean. which is what it should be? but if i clutch in at 2800 rpm the car hangs revs like mad.

http://i.imgur.com/EV4JnlI.png

what you are referring to is the DEFCO (decel fuel cut off). the manuals seem to never want to do it for some reason. erik and i are working on it for emissions purposes, but it has little to do with the revs hanging. granted if the injectors shut off it will drop rpm from no fuel but the throttle shouldn't be open that much to begin with.

 

[diablomatt]

I can't believe I just read 29 pages of this.

Takeaways:
- This community will do just about anything to help someone, even if they don't want to help themselves.
- PC Tech, I admire your patience. I'm not sure I could do it man.
- diablomatt is just a straight up good dude in every thread I see him in.

I'm heavily leaning PC for an over the winter install and I try to keep up on related posts. This ones been a doozy.

thank you. yes i try to help everyone i can. no i dont get paid to be here lol. quite the opposite i probably shouldn't be on here while working but just trying to help lol:cheers:

 

[donmcgowen]

This post is for Nemesys.

https://m.facebook.com/story.php?story_fbid=10154518825596611&id=100005886251856

 

[donmcgowen]

This post is for Nemesys.

https://m.facebook.com/story.php?story_fbid=10154518825596611&id=100005886251856

 

[3beeps]

^Links don't work.

 

[donmcgowen]

^Links don't work.

Not sure why, but this was the post about tuning. I wanted to point out what a huge difference Shoemaker tunes can make since Nemesys wasn't familiar with Rob Shoemaker. Just search his name in the S550 Facebook groups.


----This Supercharged Mustang featuring the Paxton 2200SL on e85 originally made 610whp by another shop/tuner. In the hands of Krazy House and our in house tuner Rob Shoemaker using HP Tuners we were able to take care of all loose ends and squeeze out a whopping 812whp and 663ft/lb tq.

 

[15dib]

It says I have to join facebook :/

 

[markmurfie]

what you are referring to is the DEFCO (decel fuel cut off). the manuals seem to never want to do it for some reason. erik and i are working on it for emissions purposes, but it has little to do with the revs hanging. granted if the injectors shut off it will drop rpm from no fuel but the throttle shouldn't be open that much to begin with.

Are you increasing your clyair multipliers? I'm not sure what the Diablo equivalent would be. I've seen it where when they are increased to high dfco doesn't work.

 

[donmcgowen]

Are you increasing your clyair multipliers? I'm not sure what the Diablo equivalent would be. I've seen it where when they are increased to high dfco doesn't work.

Question about this DEFCON thing. Would fuel cut off on deceleration cause knock. I'm revving my car past 7k and it pulls hard, but when I let off the gas and RPMs start to drop, I'm seeing knock. Anywhere from 4-7 positive knock so it's pulling timing 4-7 degrees.

Sponsored