Motor Home Mileage

[Keyair]

Originally Posted by DaveFL

Keyair,
I don't like is when a zero bid winner moves the price up or wins and doesn't complete the sale.

I would like to find one that works with the newer 454 with the return gas line.

Agreed, seen that too many times!

As for your M/H, I looked at the Installation manual and hope you can read this pic I took.


My info is that most mechanical fuel pumps on 454's have a return line from pump itself, to allow excess pressure NOT USED by the Carb to vent back to tank. For example, 4000rpm climbing a steep hill would max out the pump and the fuel consumption too, but then cresting the hill and going downhill, throttle shut with 4000rpm, would still have the pump on max output, but the excess pressure and volume, un-needed now would go back to the tank.
By installing the sensor between the pump and carb only the fuel flowing into the carb is measured, which is what you want.

Yours would be a TBI?
Looks like they had a kit that would have worked on that...

[DaveFL]

TBI 454 when I traced the fuel lines, one goes back after the fuel rail back to the tank. I will check where it pressure reduces and excess fuel removed. Is company still making unit? Box and pictures show very old style display not lcd. Similar to calculators of twenty years ago. Newer models of fuel scan were at 150 on ebay, incorporate info from computer, wish I had researched before I purchased the separate code scanner.

[Keyair]

Yes, the TBI unit poses problems. I have a TBI equipped 454 Suburban, and know that there is a fuel return.
If it was OBD2 controlled there are units that plug into the OBD2 port and can give the readout of fuel consumption, but I think they are ALD controllers.
The Zemco unit is sweet, and the only way I have found to get MPG readouts from older carb equipped vehicles, but they are from the mid 80's and long out of production.

[DaveFL]

ScanGauge II Driving Computer OBDII-CAN Scan Tool - eBay (item 280266160215 end time Jan-29-11 11:37:37 PST)

This one would do it all, if my obdII malfunctions I will move on to one like this, install would be a simple plug at the dash.

[masseyfarm]

Originally Posted by DaveFL

ScanGauge II Driving Computer OBDII-CAN Scan Tool - eBay (item 280266160215 end time Jan-29-11 11:37:37 PST)

This one would do it all, if my obdII malfunctions I will move on to one like this, install would be a simple plug at the dash.

Dave: Have you seen this one. Cheaper! Video on the page to explain unit.

PLX Kiwi MPG Trip Calculator and OBDII Scanner on eBay.ca (item 390174039534 end time 21-Feb-11 20:32:00 EST)

Dave

[DaveFL]

Thanks, looked again and discounted due to 21 shipping a couple ounce part, I liked the 4 item screen on the scan gauge. 90 for mpg screen I'll do the math. lol or wait for another zemco to come up.

[Chuckles]

Originally Posted by Keyair

I dont remember, but I am sure Chuckles can tell us... How much of that $9/gallon is Tax....
You wanna know why I moved to the USA?
The only thing I miss about the UK is my family...

This is a difficult one.......... The Government have the knack of "hiding" some taxes to make us feel better that they are not taking that much!

At the last count it is around 87% Before profit (Tax)!

[garry]

I had one of these units (Zemco) on my 1976 Blazer and it worked great.

Todays vehicles need the scan gage cost a lot more but also provide a lot more information.

[Keyair]

Originally Posted by Chuckles

This is a difficult one.......... The Government have the knack of "hiding" some taxes to make us feel better that they are not taking that much!

At the last count it is around 87% Before profit (Tax)!

Yes, thats about what I remember!
As I was "deprived" as a young man growing up in the UK.
Driving Mini's and the like, the biggest engine I owned was a Ford sierra XR4x4 @ 2.8L.
I am making up for lost time and my 4 trucks and 2 Motorhomes add up to 38 liters and 48 cylinders!
Getting 10 mpg is a cause for celebration!

[Keyair]

Was surfing about looking for info on 454 power and mileage improvements and found this interesting article on improvements that this guy did to his 454 Winni..
He says he now gets 11 to 13 mpg when not towing..

Drivetrain improvements that actually work > CampfireClicks.com | Online Community for RV Owners, Classifieds, Forums, DIY, How To's, Reviews, Member Profiles, Blogs

[SheilaMcC]

Hi, What is a GV and how does that improve gas mileage? I am looking at a 1984 28 ft AS MH and am getting stories about 11-12 mpg and 6 mpg. What is the truth? How does one deal with the older engines? This has a Chevy 454 with low miles. Thanks, S

[Keyair]

Hi Sheila!
GV is a aftermarket 2 speed "extra gearbox" that sits behind the normal transmission.
It drops the revs at freeway speeds to lower the rpm's and therefore save gas.
My 34.5' Classic does no have GV, but did almost 8.5 mpg last year on a long trip. The 28' is lighter, so should do better if running good, but even with the GV I doubt you will get much better than 10mpg average.

[Octane]

Originally Posted by SheilaMcC

Hi, What is a GV and how does that improve gas mileage?...

Click: Gear Vendors

.

[SheilaMcC]

Thanks, so much, lots to learn.

[DaveFL]

31 ft I got 10 no toad, 8 while pulling ford ranger ext cab.

[Michigander]

Originally Posted by DaveFL

31 ft I got 10 no toad, 8 while pulling ford ranger ext cab.

I'm with you, Dave, around 8 with Wrangler 2 door toad and around 10 without.

[Desikk]

I'm the same as Michigander, 8 with wrangler 10 without.

[John H.]

with GV I cruse at 2,200 RPM
with out 3,000 RPM

[shepherd57]

Can anybody tell me how much a 28ft weights I have to trailer one home and need to know the net weight .
Thanks

[Smartstream]

Originally Posted by shepherd57

Can anybody tell me how much a 28ft weights I have to trailer one home and need to know the net weight .
Thanks

Depending on how much stuff you have in it figure around 14,000 lbs.

Cheers, Dan