Reply
 
Thread Tools Search this Thread Display Modes
 
Old 01-02-2016, 07:03 PM   #1
Dazed and Confused
 
Isuzusweet's Avatar
 
Currently Looking...
1983 31' Airstream310
Hillsburgh , Ontario
Join Date: Sep 2012
Posts: 2,433
More power Scotty

I was having a visit with John (Shepherd57) and a fellow diesel fanatic today when the talk of more power came up. I brought up propane injection but water/methanol injection seemed to be the best way to get power and lower EGT temps. They have boost control injected as well as boost and EGT control injection.

This outfit also makes water injection for gas motors as well.

Snow Performance MPG-MAX Universal Water-Methanol Injection Kit

To the technically minded out there; what do you think?

Cheers
Tony
__________________

__________________
Per Mare, Per Terram and may all your campaigns be successful.

Its a recession when your neighbor loses his job; its a depression when you lose your own. "Harry S Truman"
Isuzusweet is offline   Reply With Quote
Old 01-02-2016, 07:37 PM   #2
Rivet Master
 
Keyair's Avatar

 
1984 34.5' Airstream 345
Foothill Ranch , California
Join Date: Mar 2010
Posts: 3,945
Images: 1
The water Menthol Injection is well known and a good power adder.
What is interesting is that we have Propane onboard, so that sound like a cool option!
__________________

__________________
Keyair is offline   Reply With Quote
Old 01-03-2016, 02:24 AM   #3
Rivet Master
 
Smartstream's Avatar

 
1982 28' Airstream 280
Port Angeles , Washington
Join Date: Aug 2008
Posts: 1,372
The easy way to make power in a diesel is to feed it more fuel and air. The side effects are loss of fuel economy and the black clouds of smoke coming from the tail pipe. There are lots of little things like piston and combustion chamber design and add computers and you can control fuel management and valve timing. It's great but kind of hard to add to old mechanical engines. Keep in mind newer engines have spray oil coolers for the bottom of the pistons and other little tricks to handle the extra power generated by 30 psi. turbos and intercoolers.

Our 10 psi. turbos add a little juice but as we all know our old Isuzu's are no ball of fire but they do get us down the highway with few problems. I've put about 70,000 miles on mine from coast to coast and over the Continental Divide several times with no issues. I may slow a bit on the hills but I always get there.

Propane and water injection have been around a long time but until I see the large truck fleets running them I think I'll pass.
__________________
Cheers, Dan
________________________________________


"Socialist governments traditionally do make a financial mess. They always run out of other people's money. It's quite a characteristic of them."
~ Margaret Thatcher ~
Smartstream is offline   Reply With Quote
Old 01-03-2016, 05:58 AM   #4
Rivet Master

 
Currently Looking...
1995 36' Classic 36
Ludington , Michigan
Join Date: May 2011
Posts: 1,305
Quote:
Originally Posted by Smartstream View Post
Propane and water injection have been around a long time but until I see the large truck fleets running them I think I'll pass.

That's a very valid observation. Those guys would greatly benefit from anything that really works from a cost and reliability standpoint.

I'm pretty pleased with the Banks mod. I see 30lbs boost but you have to be careful with the EGT. I've been over all the challenging passes in the Rockies. Coming down has always been more of a concern until I installed the PAC exhaust brake. Inter cooler (CAC) leaks and inefficiencies can really rob performance and raise EGTs. They degrade faster than a radiator and deserve periodic pressure checks.

I'm going to replace my radiator/CAC sandwich with a stacked configuration that most of the new rear engine configurations are using.
__________________
Kota is online now   Reply With Quote
Old 01-03-2016, 08:19 AM   #5
Rivet Master

 
Currently Looking...
1995 36' Classic 36
Ludington , Michigan
Join Date: May 2011
Posts: 1,305
More power Scotty

Click image for larger version

Name:	ImageUploadedByAirstream Forums1451830740.806340.jpg
Views:	96
Size:	173.9 KB
ID:	255009

On a long grade, the CAC blows a lot of very hot air across the radiator in the sandwich configuration.

This configuration solves that problem.

I'll eliminate the engine fan and use 4 puller fans on the back. 2 CAC 2 Radiator. Both have different control requirements that are not met by one huge engine driven fan.
__________________
Kota is online now   Reply With Quote
Old 01-03-2016, 06:55 PM   #6
Dazed and Confused
 
Isuzusweet's Avatar
 
Currently Looking...
1983 31' Airstream310
Hillsburgh , Ontario
Join Date: Sep 2012
Posts: 2,433
I hear everyones concerns with adding power. I too have been leery of turning up the tap, so to speak, by turning up the flow on the fuel pump. This added fuel will only add to the EGT temps, and since heat is the enemy of diesel engines, it's not a good idea.

I thought Propane was the way to go but it does add a lot of heat to the mixture.

Water-methanol injection however lowers EGT temps by injecting water into the airstream but increases efficiency by turning the engine partially into a steam engine; which has the added effect of cleaning the engine combustion area at the same time.
Maybe just the boost mode of only using it when the turbo is on stream would be good and cheaper.
They tell me just the blue windsheild wiper fluid works well.

Diesel Water Methanol Injection Kit | Powermax Kit

Cheers
Tony

PS There is a Snow dealership in Oakville and i will give them a call.
__________________
Per Mare, Per Terram and may all your campaigns be successful.

Its a recession when your neighbor loses his job; its a depression when you lose your own. "Harry S Truman"
Isuzusweet is offline   Reply With Quote
Old 01-03-2016, 07:38 PM   #7
Rivet Master
 
Smartstream's Avatar

 
1982 28' Airstream 280
Port Angeles , Washington
Join Date: Aug 2008
Posts: 1,372
Quote:
Originally Posted by Isuzusweet View Post
I hear everyones concerns with adding power. I too have been leery of turning up the tap, so to speak, by turning up the flow on the fuel pump. This added fuel will only add to the EGT temps, and since heat is the enemy of diesel engines, it's not a good idea.
This isn't exactly true. Diesels like heat, as a matter of fact that along with fuel and compression is how they work. Check out the trucks with their radiators covered during the cold weather trying to keep enough heat to keep the power up. Turbos on the other hand do not like too much heat. They start to melt first.

As I said before, keep an eye on the truck fleets. The slightest improvement in power or economy means big bucks to them and if it works they will be the first to use it.
__________________
Cheers, Dan
________________________________________


"Socialist governments traditionally do make a financial mess. They always run out of other people's money. It's quite a characteristic of them."
~ Margaret Thatcher ~
Smartstream is offline   Reply With Quote
Old 01-03-2016, 08:19 PM   #8
3 Rivet Member
 
Tuco's Avatar
 
1988 32' Excella
Ojai , California
Join Date: Aug 2014
Posts: 189
Images: 1
You can mitigate some of the EGT increases with a larger exhaust system.
__________________
Dave & MJ
1988 32' Excella 1000 (Beauty)
1999 White Dodge SLT Laramie 3500 Dually, 4x4, 5spd, 5.9 CTD 245k+ (The Beast)
Tuco is offline   Reply With Quote
Old 01-03-2016, 11:34 PM   #9
4 Rivet Member
 
SebasSF's Avatar
 
1991 30' Airstream 30
San Francisco , California
Join Date: Aug 2013
Posts: 440
Yes, more power please. I just installed a Banks kit on my 94 12v, but I don't notice much of an improvement. I was running 18 psi boost (is that low?) and backing off when egt went over the 1200/ 1250 mark going up long steep hills. I must have been pushing it much harder before I got the pyrometer because the radiator temp never budged from the 190 mark the whole trip. Still smoking quite a bit under load, but I made 11.2 mpg heading up to Portland and some long passes (in the snow!). I still plan on upgrading the exhaust and finding a pro to do a tune up as I have no clue. I guess there is position of the fuel plate, timing, star wheel etc. to consider.
__________________
SebasSF is offline   Reply With Quote
Old 01-04-2016, 01:42 AM   #10
Rivet Master

 
Currently Looking...
1995 36' Classic 36
Ludington , Michigan
Join Date: May 2011
Posts: 1,305
Quote:
Originally Posted by SebasSF View Post
Yes, more power please. I just installed a Banks kit on my 94 12v, but I don't notice much of an improvement. I was running 18 psi boost (is that low?) and backing off when egt went over the 1200/ 1250 mark going up long steep hills. I must have been pushing it much harder before I got the pyrometer because the radiator temp never budged from the 190 mark the whole trip. Still smoking quite a bit under load, but I made 11.2 mpg heading up to Portland and some long passes (in the snow!). I still plan on upgrading the exhaust and finding a pro to do a tune up as I have no clue. I guess there is position of the fuel plate, timing, star wheel etc. to consider.

That doesn't sound quite right. I had a very noticeable power improvement. And it ran cleaner. Visibly and confirmed on the Dyno emissions test. I see 30lbs of boost and the EGT tops out about 1100 unless you are on a long climb then I just downshift to keep the rpms up to about 2300.
__________________
Kota is online now   Reply With Quote
Old 01-04-2016, 06:46 AM   #11
Rivet Master

 
Currently Looking...
1995 36' Classic 36
Ludington , Michigan
Join Date: May 2011
Posts: 1,305
Quote:
Originally Posted by Smartstream View Post
This isn't exactly true. Diesels like heat, as a matter of fact that along with fuel and compression is how they work. Check out the trucks with their radiators covered during the cold weather trying to keep enough heat to keep the power up.

That's why I'm going to split CAC and radiator cooling. The big fan blows too much constant wind for it to warm up. Especially in cold high altitude conditions. The CAC on the other hand doesn't produce significant heat unless the boost is up. Then it's important for it to be cold soaked which requires a heavy fan blow for about 30 seconds after a boost event.
__________________
Kota is online now   Reply With Quote
Old 01-09-2016, 11:36 PM   #12
4 Rivet Member
 
SebasSF's Avatar
 
1991 30' Airstream 30
San Francisco , California
Join Date: Aug 2013
Posts: 440
I found the turbo outlet was not aligned and leaking a bit, the clamp was not on right...could be loosing some boost under pressure. There was also a pinch in the pipe compression fitting for the boost gauge. We'll see if that helps at all.
__________________
SebasSF is offline   Reply With Quote
Old 02-25-2016, 09:47 AM   #13
4 Rivet Member
 
SebasSF's Avatar
 
1991 30' Airstream 30
San Francisco , California
Join Date: Aug 2013
Posts: 440
I replaced the clamp on the exhaust and remade the connection on the boost gauge nod took it for a spin. It feels like it's running cleaner and has more power. When I floor it on a hill, the turbo psi is up to about 22... Sounds low compared to Kota's. I still plan on replacing the muffler and getting a full tune up by a proper diesel shop.
__________________
SebasSF is offline   Reply With Quote
Old 02-26-2016, 06:49 AM   #14
Rivet Master

 
Currently Looking...
1995 36' Classic 36
Ludington , Michigan
Join Date: May 2011
Posts: 1,305
More power Scotty

Take a good look at your CAC. I chased a degradation in performance and more smoke until I found several cracks in the cooler. Saw about a 5 psi increase in top end boost and it cleaned right up. Probably mentioned that previously but didn't go back and read. They seem to be a real wear item in the trucking world. They are routinely pressure checked every year.

You should see a good solid 28-30 lbs at sea level with the Banks Big Head and turbo housing. That will make a world of difference. It will run cooler too. The star wheel in the pump might need to be adjusted. Hard telling how or if they set it up at the overhaul.
__________________

__________________
Kota is online now   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
Lil' Miss Scotty :: 1964 Serro Scotty Front Kitchen InsideOut Airstream Registry Discussions 1 06-21-2012 11:26 PM
See more. Do more. Live more...? Mike91208 Airstream Lifestyle 2 01-26-2012 07:56 AM
Vintage Mallard 13 foot camper travel trailer serro scotty shasta airstream eBay Watch Airstreams on eBay 0 11-05-2011 08:30 PM
Vintage Mallard 13 foot camper travel trailer serro scotty shasta airstream eBay Watch Airstreams on eBay 0 10-14-2011 08:00 PM
We need more power Scotty! thecatsandi On The Road... 10 08-09-2008 09:54 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:57 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.