Blois modified 230 port timing    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version

All Forums >> RC Boats >> Speed - RC Gas Boats >> Blois modified 230 port timing
Page: [1]

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
Blois modified 230 port timing - 12/9/2012 12:16 AM   
phickey06



Posts: 39
Score: 100
Joined: 2/5/2006
Last Login: 4/25/2013
From: beltsville, MD, USA
Status: offline 		An engine that has been owned for a long time but never run is getting ready to go into service.It is an old school Blois mid modified 230.When examining it I decided to check the exhaust timing.I was a little bit suprised to measure only approx 165' of exh duration. I can see a small cut at port top and the port has been raised only slightly in the corners.From what I gather this timing is quite low.Was this normal for back in the day?Should I raise the port for use with a pipe. Something like 175' duration or what?Here it is in what will be its home.Yea I know it's one of those horrible Dumas scale hydros,buts it's part of the long ago old school project.

Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures
       Post #: 1

RE: Blois modified 230 port timing - 12/9/2012 1:25 AM   
Nosedragger


 

Posts: 558
Score: 113
Joined: 6/19/2006
Last Login: 5/24/2013
From: hartford, CT, USA
Status: offline 		put a 260 top end on it instead of trying to port it. a stock 260 puts ot more power than a mod 230

Hide Signatures

(in reply to phickey06)
       Post #: 2

RE: Blois modified 230 port timing - 12/9/2012 6:39 AM   
MrMikeG


 

Posts: 2045
Score: 115
Joined: 9/24/2005
Last Login: 5/24/2013
From: Mildura, AUSTRALIA
Status: offline 		I would run it, Bloise was pretty good back then. Too bad you don't have his pipe to go with it!

Hide Signatures

(in reply to Nosedragger)
       Post #: 3

RE: Blois modified 230 port timing - 12/9/2012 6:54 AM   
mistycreekboats


 

Posts: 677
Score: 105
Joined: 11/10/2009
Last Login: 5/25/2013
From: Prince George, BC, BC, CANADA
Status: offline 		he is still around I just talked to him a while back ... ask him

http://www.needforspeedhobbies.com/zenoahengines.htm




_____________________________

Randy Danchuk
Misty Creek Boats Canada

Hide Signatures

(in reply to MrMikeG)
       Post #: 4

RE: Blois modified 230 port timing - 12/10/2012 11:20 PM   
phickey06



Posts: 39
Score: 100
Joined: 2/5/2006
Last Login: 4/25/2013
From: beltsville, MD, USA
Status: offline 		Thanks for the replys.I think I will just cut the port to about 175 or so and come up with a pipe and that should be good enough for this boat.It was never intended to be an all out hot rod,so I will make do with what I got.

Hide Signatures

(in reply to mistycreekboats)
       Post #: 5

Page:   [1]
All Forums >> RC Boats >> Speed - RC Gas Boats >> Blois modified 230 port timing
Page: [1]





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


0.281RCU1