Computer Tune, Arizona Speed???
#21
Platinum Member
Platinum Member
iTrader: (1)
I did one mail order tune that worked out good for blackhawk aka scott elgas, he had a single mefi3 hp500 efi innovation, he ported his heads and drove boat w vacuum gauge and 02 meter, i would make changes to his program and upload to a spare ecu, mail it to him, drive it, give me numbers, make changes to his ecu, pass in mail etc, got fuel dialed in perfect, was a little hassle but did work, fwiw, smitty
#22
Platinum Member
Platinum Member
iTrader: (1)
I did one mail order tune that worked out good for blackhawk aka scott elgas, he had a single mefi3 hp500 efi innovation, he ported his heads and drove boat w vacuum gauge and 02 meter, text me numbers, i would calculate map vs bpw, i would make changes to his program and upload to a spare ecu, mail it to him, he'd drive it, give me numbers, make changes to his ecu, pass in mail etc, got fuel dialed in perfect, was a little hassle but did work, fwiw, smitty
#23
Platinum Member
Platinum Member
iTrader: (1)
It helped that he lived one mile from a test lake and was one day away via mail. He would use the boat meanwile and just kept it out of rpm bands where it was rich or lean, Smitty
#25
Registered
Join Date: Oct 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Arizona Speed & Marine
1st I live in Columbus, Ohio and I was told to use ASM. I didn't even check any threads or reviews, I just went that direction to flash my ECU, which I had to send it back once and then Jim (@ASM) ended up sending different programs to put in because it wouldn't idle. I went from a Volvo Penta 454 with MPI to a HT502 crate engine because Schumaker Performance recommended it said everything would bolt on and work.They used my 454 cam and because It does have oval ports is why I guess. The engine has 10 hours on it and 3 of those hours were under load and spun #7 bearing and ruined the crank while I was breaking it in softly. Now Jim says, he will sell me a 502 and use my heads. Of course Chevy will not honor any warranty because it is not intended for marine. I spent $6K on the HT and another $4K to get it running. Is this right in line on how ASM operates? Any thoughts if the ECU could have caused this to happen? It was running good and sounded good until.... Also wondering if I should have this one fixed and run it, or fix it and sell it?
#26
Platinum Member
Platinum Member
iTrader: (1)
1st I live in Columbus, Ohio and I was told to use ASM. I didn't even check any threads or reviews, I just went that direction to flash my ECU, which I had to send it back once and then Jim (@ASM) ended up sending different programs to put in because it wouldn't idle. I went from a Volvo Penta 454 with MPI to a HT502 crate engine because Schumaker Performance recommended it said everything would bolt on and work.They used my 454 cam and because It does have oval ports is why I guess. The engine has 10 hours on it and 3 of those hours were under load and spun #7 bearing and ruined the crank while I was breaking it in softly. Now Jim says, he will sell me a 502 and use my heads. Of course Chevy will not honor any warranty because it is not intended for marine. I spent $6K on the HT and another $4K to get it running. Is this right in line on how ASM operates? Any thoughts if the ECU could have caused this to happen? It was running good and sounded good until.... Also wondering if I should have this one fixed and run it, or fix it and sell it?
#27
Registered
Join Date: Oct 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Yes we did. The old engine is at buddies house and I am thinking I may drop my HT off at Chevy at about 25 MPH and make it goes right through their front doors! Thinking I may take the 454 and bump it up and put it back in. Yes we used the one off the 454. Yes, the 12 qt pan from 454 went onto the HT. Yes, I was told the ZZ is not a good one. But from everyone I have been in contact with, I was made to look (in my eyes) like a complete ass for letting them talk me into this POS HT502. 16K and 3 hours on this boat this summer. Going to be an interesting winter t see what I end up doing. 454 has 310Hp and thinking I am going to end up 500 and change. not looking to haul ass, because our boat is heavy. 99 Four Wins 254 Funship which is VERY rare I guess.
#28
Platinum Member
Platinum Member
I second that about Eddie Young!! Just be prepared when you call to chat for a bit, because he loves to talk about boats in general. lol He is the go to guy for tuning in my opinion.
#29
Registered
First thread I've seen on ASM here, never searched though. Found it interesting people claiming 500hp out of a 454 MPI with ECU, injector and intake mani. Mods from ASM. I was skeptical at the least haha.
Keith
Keith