Reply
 
Thread Tools Search this Thread
 
Old 22 February 2015, 21:47   #1
Member
 
craig_c's Avatar
 
Country: UK - Scotland
Town: Inverkip
Boat name: Crusader
Make: Redbay 8.4 Exped
Length: 8m +
Engine: yamaha sterndrive
Join Date: Nov 2004
Posts: 478
RIBase
Electronic boost control on yamaha diesel

After watching a video on electronic boost controllers on cars I was wondering if the same sort of device could be fitted to our yamaha me422 diesel.

Being a mechanical pump style engine it does have a lot of lag up to around 1800 revs.

Not sure if such a device would help this and I certainly don't want to create more boost but it would be interesting to see the effects.
__________________

__________________
Redbay Boats
craig_c is offline   Reply With Quote
Old 23 February 2015, 04:53   #2
Member
 
Swain Marine's Avatar
 
Country: UK - England
Town: Bransgore, Christchurch
Boat name: Clementine
Make: Ribtec 535
Length: 5m +
Engine: 2x Mariner 40 (6E9)
MMSI: Handheld no DSC
Join Date: Jun 2013
Posts: 84
RIBase
IMO the short answer would be that it would be of no use unless combined with a different of modified turbo. A smaller pitch prop might help though but probably at the expense of top end end performance.
__________________

__________________
Dave Swain.
Swain Marine is offline   Reply With Quote
Old 23 February 2015, 04:55   #3
Member
 
kubcat's Avatar
 
Country: Australia
Town: Sydney
Boat name: Lunasea
Make: Ribtec 890SX
Length: 8m +
Engine: Yamaha ME 421STI x 2
Join Date: Aug 2009
Posts: 470
How does an electronic boost controller work?
__________________
kubcat is offline   Reply With Quote
Old 23 February 2015, 05:07   #4
Member
 
craig_c's Avatar
 
Country: UK - Scotland
Town: Inverkip
Boat name: Crusader
Make: Redbay 8.4 Exped
Length: 8m +
Engine: yamaha sterndrive
Join Date: Nov 2004
Posts: 478
RIBase
It bleeds off air from the waste gate to create more boost.

You can get a manual one which just bleeds air from the actuator but an electronic one adjusts itself to the revs so you can bleed off early in the Rev range and have normal operation higher up.
__________________
Redbay Boats
craig_c is offline   Reply With Quote
Old 23 February 2015, 11:06   #5
Member
 
Country: UK - England
Town: southampton
Boat name: hydradrive
Make: yamaha
Length: no boat
Engine: sterndrives
Join Date: Sep 2012
Posts: 289
Don't have a wastegate . So I would say no
__________________
yam man is offline   Reply With Quote
Old 23 February 2015, 11:55   #6
Member
 
craig_c's Avatar
 
Country: UK - Scotland
Town: Inverkip
Boat name: Crusader
Make: Redbay 8.4 Exped
Length: 8m +
Engine: yamaha sterndrive
Join Date: Nov 2004
Posts: 478
RIBase
Ok that ends that idea then
__________________
Redbay Boats
craig_c is offline   Reply With Quote
Old 23 February 2015, 13:28   #7
Member
 
Country: UK - England
Town: southampton
Boat name: hydradrive
Make: yamaha
Length: no boat
Engine: sterndrives
Join Date: Sep 2012
Posts: 289
The boat must heavily loaded to have turbo lag. The yams are normally straight out of the blocks compared the Yanmar 6lp
__________________
yam man is offline   Reply With Quote
Old 23 February 2015, 14:37   #8
Member
 
craig_c's Avatar
 
Country: UK - Scotland
Town: Inverkip
Boat name: Crusader
Make: Redbay 8.4 Exped
Length: 8m +
Engine: yamaha sterndrive
Join Date: Nov 2004
Posts: 478
RIBase
It is only when she's full of diesel and fully loaded with people at the back. Once it get on boost she's away like a rocket.
__________________

__________________
Redbay Boats
craig_c is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 02:33.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.