Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > Vintage RV's
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-03-2011, 11:23 PM   #1
Junior Member
 
Join Date: Feb 2011
Posts: 2
Question water/alcohol injection on 454 v8 carb

I have a 1989 chevy 454 in a Fleetwood Southwind. I just got it and am trying to improve engine power and economy. I've read a lot about water/alcohol injection, all positive. But a carp rebuild specialist (Cliff's performance shop; reccomended by some of you on 454 thread) says No.
Have any of you had any experience with it?

Thanks Folks!
__________________

__________________
billhardy is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 02-04-2011, 06:37 AM   #2
Registered User


 
Monaco Owners Club
Join Date: May 2009
Posts: 3,198
Injecting water into a running engine will not improve power or economy.
If the engine is prone to pinging (spark knock) it will get rid of that.
__________________

__________________
JimM68 is offline   Reply With Quote
Old 02-04-2011, 08:36 AM   #3
Junior Member
 
Join Date: Jan 2011
Posts: 9
Bill-
Not sure what your trying to accomplish here- do you have some knocking or pinging you are trying to remediate?
GM makes a "Top Engine" cleaner that when used can help with this, also I have used "SeaFoam" which you can get at Autozone with good results. Both of these get administered thru the card or a vacuum line. Good luck.

JW
__________________
jwvette77 is offline   Reply With Quote
Old 02-04-2011, 09:21 AM   #4
Senior Member
 
Join Date: Sep 2007
Location: texas
Posts: 2,267
it will only help for pinging back in the late 70's i had a 1970 chalenger with a 440 the compression was high i added water injection it was vacuum operated. my southwind 454 gets 8 mpg pulling a 4 door chevy truck (thanks to Jim's distrubitor mod)
dave
__________________
whem2fish is offline   Reply With Quote
Old 02-04-2011, 10:24 AM   #5
Senior Member
 
Vintage RV Owners Club
Join Date: Jul 2010
Posts: 218
Bill, start reading Jim E's post and do what he explains. these engines need to be hot rodded, that's what they like the best.

Outlaw
__________________
John & Colleen Weston & Cassie(our cat) -Olympia,WA
1978 GMC Midas Class A 30FT-454 Engine, 400 T
Outlaw45 is offline   Reply With Quote
Old 02-04-2011, 10:32 AM   #6
Senior Member
 
Wanabee FTer's Avatar
 
Gulf Streamers Club
Ford Super Duty Owner
Join Date: Jul 2010
Location: Golden Village Palms, CA
Posts: 1,988
Blog Entries: 12
Many years ago I purchased a Holly water injection unit for a Chevy 350. Tried to use it one time and removed it. Junk!
__________________
John
'98 Gulf Stream Sunsport 325, 7.5L Banks Power Pack, Koni FSD's, Air Bags, ReadyBrute Elite,
2000 Honda Accord

Wanabee FTer is offline   Reply With Quote
Old 02-05-2011, 10:01 AM   #7
Junior Member
 
Join Date: Feb 2011
Posts: 2
Gentlemen, thanks for your advice. I'm convinced I don't want to do it. I had been told(by people who sell them) that they would increase power, and make your engine run cooler. Thanks again, you've saved a lot of money.
Bill Hardy
__________________
billhardy is offline   Reply With Quote
Old 02-14-2011, 10:34 PM   #8
Senior Member
 
Hoverbug's Avatar
 
Vintage RV Owners Club
Ford Super Duty Owner
Join Date: May 2001
Location: Klamath Falls, Oregon (The right side of the Cascades and home of Crater Lake)
Posts: 854
Bill I have an '87 GMC Suburban with a 454. I am a believe in Marvel Mystery Oil. Been using it for years and get good mileage and good performance. 105k plus and no mechanical issues at all.
__________________
Klamath Falls, Oregon:The Right Side Of The Cascades!
1990 Rexhall Airex 29I,Ford 460cid,Gear Vendor,Granning Tag Axel
'87 GMC Suburban 2500 W/454 CID
Hoverbug is offline   Reply With Quote
Old 02-16-2011, 03:45 AM   #9
Member
 
BobKomar's Avatar
 
Fleetwood Owners Club
Join Date: Feb 2011
Posts: 78
A water/alky mix is used mostly in aftermarket boost set ups to keep things from detonating at high boost and melting down.
__________________

__________________
BobKomar is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
454 Chevy engine questions, bringing back an Elandan padraig1066 Vintage RV's 23 05-04-2010 01:04 PM
Fuel PSI range to carb on GM 454 Gary - K7GLD Vintage RV's 13 04-04-2010 10:31 PM
Pre-workhorse 454 engine needs help DaveFL Workhorse and Chevrolet Chassis Motorhome Forum 19 01-21-2010 08:48 AM
1985 Allegro Chevy 454 Starting problems FlyLikeABand MH-General Discussions & Problems 7 07-12-2009 11:51 PM
454 original air cleaner Plaser007 Vintage RV's 6 07-30-2007 09:18 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 08:34 PM.


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