Procharger install problems on 7.4 MPI 310HP
#11
Registered
![Default](/forums/images/icons/icon1.gif)
Originally Posted by DONZI33
It sounds as if you fuel pressure regulator gain is not set up properly. The fuel pressure may be but the gain rate to full psi may need tweaking. Procharger sells the regulator adjustment kits. I also have or can get you them as I am a distributor.. Also despite what others may say @ 5psi you should not have had to reflash the ecm on an otherwise stock unit for it to run properly.. I too have seen a bunch of hrs on procharged stock engines.. The key is not to be abusive and make sure you pamper it with services early ..
Jamie / Lakeside
![Smilie](/forums/images/smilies/smile.gif)
#12
Lakeside Restorations.com
![](https://www.offshoreonly.com/forums/images/icons/commercial_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
Originally Posted by 800XCR
I respectfully disagree - 5 psi without ecm recal = BANG! Have you talked to Zeke at Gruninger's?
__________________
www.LakesideRestorations.com 570-639-2628
We Make Fast Toys Faster, Cool Toys Cooler and Old Toys New!.. Performance, Custom & OEM Parts & much MORE![/CENTER]
www.LakesideRestorations.com 570-639-2628
We Make Fast Toys Faster, Cool Toys Cooler and Old Toys New!.. Performance, Custom & OEM Parts & much MORE![/CENTER]
#13
Registered
![Default](/forums/images/icons/icon1.gif)
No issue with procharger - just disagree with the install without ecm change.
Do I own a boat, not at the moment we are headed to the other side "cruiser" Last of the kids are gone and looking for a floating cottage.
Do you guarantee your customer's engines won't grenade without an ecm upgrade when you install a kit? If not, why not if you are so sure?
What parameters do you use to determine if an ecm needs reprogrammed before the engine is damaged?
I know that not all engines are created equal, but I would guess that the base 7.4 doesn't vary too much engine to engine. Why would one stock 7.4 require an ecm change and the next one not when the calibration is the same in all of them?
Not bashing either, just curious.
Do I own a boat, not at the moment we are headed to the other side "cruiser" Last of the kids are gone and looking for a floating cottage.
Do you guarantee your customer's engines won't grenade without an ecm upgrade when you install a kit? If not, why not if you are so sure?
What parameters do you use to determine if an ecm needs reprogrammed before the engine is damaged?
I know that not all engines are created equal, but I would guess that the base 7.4 doesn't vary too much engine to engine. Why would one stock 7.4 require an ecm change and the next one not when the calibration is the same in all of them?
Not bashing either, just curious.
#14
VIP Member
![](https://www.offshoreonly.com/forums/images/icons/prop.gif)
![Default](/forums/images/icons/icon1.gif)
My personal experiences with Procharger installs on stock engines is that the ECU does not require recalibrating, only that the fuel pressure is raised.
The problem does definately sound fuel related. I would suggest the ECU be sent to Mark at Percision EFI or Tyler Crocket to be recalibrated back to stock or what ever they would suggest. I have not had great luck with AZ Speed.
The problem does definately sound fuel related. I would suggest the ECU be sent to Mark at Percision EFI or Tyler Crocket to be recalibrated back to stock or what ever they would suggest. I have not had great luck with AZ Speed.
__________________
Patrick
Patrick
#15
Lakeside Restorations.com
![](https://www.offshoreonly.com/forums/images/icons/commercial_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
Originally Posted by 800XCR
No issue with procharger - just disagree with the install without ecm change.
Do I own a boat, not at the moment we are headed to the other side "cruiser" Last of the kids are gone and looking for a floating cottage.
Do you guarantee your customer's engines won't grenade without an ecm upgrade when you install a kit? If not, why not if you are so sure?
What parameters do you use to determine if an ecm needs reprogrammed before the engine is damaged?
I know that not all engines are created equal, but I would guess that the base 7.4 doesn't vary too much engine to engine. Why would one stock 7.4 require an ecm change and the next one not when the calibration is the same in all of them?
Not bashing either, just curious.
![Smilie](/forums/images/smilies/smile.gif)
Jamie / Lakeside
![Smilie](/forums/images/smilies/smile.gif)
__________________
www.LakesideRestorations.com 570-639-2628
We Make Fast Toys Faster, Cool Toys Cooler and Old Toys New!.. Performance, Custom & OEM Parts & much MORE![/CENTER]
www.LakesideRestorations.com 570-639-2628
We Make Fast Toys Faster, Cool Toys Cooler and Old Toys New!.. Performance, Custom & OEM Parts & much MORE![/CENTER]
Last edited by LAKESIDE RESTORATIONS; 07-21-2006 at 12:25 PM.
Thread
Thread Starter
Forum
Replies
Last Post
chevalcabre
American Offshore
9
06-16-2008 08:09 PM
snake plissken
General Q & A
2
02-10-2006 05:38 AM
NJgr8ful
General Boating Discussion
1
09-15-2005 02:38 PM
DaveP
General Boating Discussion
5
03-12-2004 10:08 AM