Re: 350 Mag performance upgrade suggestions
 

Prochargers..... I am installing a set on a twin 350 mag mpi motor now, should have some numbers in early march.

Re: 350 Mag performance upgrade suggestions
 

Does that mean your not selling it anymore? though I just say a post saying you were?

Re: 350 Mag performance upgrade suggestions
 

I don't care either way. I have the boat and the prochargers, gauges, props etc. I love the boat and it could not be replaced with anything else for the money I would sell it for. The chargers are still boxed up (since christmas). I am finishing up a 57 vette job before I tear into the boat. Hopefully in the next couple weeks. We have been looking at guns and hustlers here lately.

Re: 350 Mag performance upgrade suggestions
 

I made more calls this afternoon and can't get a straight answer about remapping a stock ECM for a 350 mag mpi as mentioned above. Does anyone have any suggestions?

Re: 350 Mag performance upgrade suggestions
 

Tyler Crockett in Michigan does ECU upgrades for 454/502mpi's maybe he does something for the 350s.....just a thought...............doug

Re: 350 Mag performance upgrade suggestions
 

Talked to my dealer today and they called mercury. Nothing is offered from merc for reprogramming. Aftermarket would be the only option.

Re: 350 Mag performance upgrade suggestions
 

How do you get ahold of Tyler Crockett in Michigan? Thanks

Re: 350 Mag performance upgrade suggestions
 

I put a 5psi Procharger on my 99 350 Mag last fall. So far I picked up 13mph but ran out of warm weather before I finished tuning. Sent the ECU off to ASM to remove the rev limiter and set up for a 2 bar map sensor. Now just waiting on the weather.

Re: 350 Mag performance upgrade suggestions
 

What boat? what speeds prior to installation? what prop befor an after? sounds impressive.

Brian

Re: 350 Mag performance upgrade suggestions
 

It's a 22 1/2' Crownline bow rider. Ran just over 50 mph gps with a 19p Mirage Plus and now run a 23p at just over 63. Still had some issuse with timing and rev limitter last time out, should be able to get 65mph with a little more tuning. I have plans for manifolds and higher boost this summer, shooting for 70mph.