Go Back  Offshoreonly.com > Technical > General Q & A
Anyone try spinning a 350 mag mpi backwards? >

Anyone try spinning a 350 mag mpi backwards?

Notices

Anyone try spinning a 350 mag mpi backwards?

Thread Tools
 
Old 10-12-2008, 08:58 PM
  #1  
Registered
Platinum Member
Thread Starter
 
Join Date: Mar 2008
Location: Vancouver BC
Posts: 1,181
Likes: 0
Received 0 Likes on 0 Posts
Default Anyone try spinning a 350 mag mpi backwards?

Got any ideas why it wouldn't work..
HaxbySpeed is offline  
Old 10-13-2008, 01:13 AM
  #2  
Charter Member # 55
Charter Member
 
Griff's Avatar
 
Join Date: Oct 2000
Location: Omaha/LOTO
Posts: 19,556
Received 1,821 Likes on 907 Posts
Default

HUH?????????? Why would you want to?????
Griff is offline  
Old 10-13-2008, 06:38 AM
  #3  
Registered
 
Join Date: Nov 2005
Location: Fredericksburg, Va
Posts: 4,554
Likes: 0
Received 2 Likes on 2 Posts
Default

you will have to change the cam to a reverse rotation cam, a special delco dist and rear main seal...Rob
ezstriper is offline  
Old 10-13-2008, 02:25 PM
  #4  
Registered
Platinum Member
Thread Starter
 
Join Date: Mar 2008
Location: Vancouver BC
Posts: 1,181
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Griff
HUH?????????? Why would you want to?????
I've got a customer who wants to repower an older inboard boat that has counter rotating 260 mercs. The transmission cannot be converted to spin in reverse, and there is no room for a different trans..

The cam and distributor aren't a big deal and the crank trigger should work fine in reverse, I think the new ones might have a cam sensor as well... The injectors are batch fired.. I think it can be done unless there's something simple that I'm missing. Which is often the case..
HaxbySpeed is offline  
Old 10-13-2008, 02:44 PM
  #5  
Registered
 
Join Date: Nov 2005
Location: Fredericksburg, Va
Posts: 4,554
Likes: 0
Received 2 Likes on 2 Posts
Default

they still sell reverse rotation gm small blocks already done...Rob
ezstriper is offline  
Old 10-13-2008, 02:57 PM
  #6  
Registered
Platinum Member
Thread Starter
 
Join Date: Mar 2008
Location: Vancouver BC
Posts: 1,181
Likes: 0
Received 0 Likes on 0 Posts
Default

EFI?
HaxbySpeed is offline  
Old 10-13-2008, 03:33 PM
  #7  
jrz
Registered
 
Join Date: Oct 2002
Location: Menasha,WI
Posts: 285
Likes: 0
Received 0 Likes on 0 Posts
Default

I recently had a 350 MPI changed to reverse rotation for the same reason. 1951 Chris Craft. Everything seems to work fine.
jrz is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
brick1932
General Q & A
7
09-21-2007 08:07 AM
JGB
General Q & A
1
02-25-2005 11:12 AM
Rumrunner-fishing
General Q & A
7
04-13-2004 07:21 AM
justinVIP
General Q & A
17
11-18-2003 10:43 AM

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 On
Pingbacks are On
Refbacks are On



Quick Reply: Anyone try spinning a 350 mag mpi backwards?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.