MVVS 2.5 Glow    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 >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> MVVS Support >> MVVS 2.5 Glow Page: [1]

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
MVVS 2.5 Glow - 10/24/2011 3:04 AM   
ronb99


 

Posts: 8
Score: 100
Joined: 10/16/2006
Last Login: 6/13/2013
From: McMahons PointNSW, AUSTRALIA
Status: offline 		 I'm assisting a young guy get his MVVS 2.5 glow (#3029) to run in a control line speed model.  Can you please provide the following information:

1. What is the exhaust and transfer port timing?
2. What is the intake (shaft) timing?
3. Is the peak power figure of 26,000 rpm realistic?
4. Any bench test results with standard (eg APC) props?

Thanks for your help.
Ron



Hide Signatures
       Post #: 1

RE: MVVS 2.5 Glow - 10/24/2011 8:21 PM   
pe reivers



Posts: 6558
Score: 646
Joined: 1/23/2002
Last Login: 6/19/2013
From: Arcen, , NETHERLANDS
Status: offline 		Timing depends on year of production
exhaust was 155°, shorter timing worked better and was introduced in later models
intake closes at 40° ATDC

with 150° exhaust timing, we got 19000 rpm static using MA 8x3 props and 3241 muffler. 26000 is on special tuned pipe with the 155° engine. Only the best selected engines would get these numbers though. For racing, you need to be a good mechanic who knows how to prep engines. That includes relief lapping of cylinders etc. From your questions it seems you have some miles to walk yet. There realy are no simple oneliner answers.
I suggest you get a fistful of props to experiment. Use only castor in the fuel, and run in the engine first. That may take a while; my best engine needed a whole season.


_____________________________

Pe, (www.mvvs.nl), MVVS, MOKImotor, RCexl, MTW, Xoar, Mejzlik.
Blessing in ignorance? There is sanctuary in analysis.

Hide Signatures

(in reply to ronb99)
       Post #: 2

Page:   [1]
All Forums >> Glow Engines, Gas Engines, Fuel &amp; Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> MVVS Support >> MVVS 2.5 Glow
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


0.250RCU1