Good Sam Club Open Roads Forum: 2006 Grayhawk Ford e450 v-10: Power increase
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > 2006 Grayhawk Ford e450 v-10: Power increase

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev
camperdave

northern, California

Senior Member

Joined: 10/16/2003

View Profile



Posted: 08/21/19 02:13pm Link  |  Quote  |  Print  |  Notify Moderator

I have a 5 star tune on my E350 van (1998 V10 that used to pull a 5k travel trailer). It was a little power boost, the big advantage is the handling of the transmission. I think that is negated somewhat with a 2006+ motorhome (5 speed trans) though. I also installed a higher flowing open air filter. Sounds cool, unless you want to actually have a conversation when climbing a hill lol. That thing is LOUD at WOT.

I installed neither on my 2004 chassis motorhome. It's just fine as it is, and I don't feel like the $/benefit ratio is there.

A Banks kit would probably help, but wow are they proud of their stuff... Not for me.

I'll settle for dropping out of overdrive on overpasses, and climbing big hills at 45mph in 2nd. [emoticon]


2004 Fleetwood Tioga 29v

map40

Florida

Senior Member

Joined: 01/15/2005

View Profile



Posted: 08/22/19 07:11am Link  |  Quote  |  Print  |  Notify Moderator

rentman99 wrote:

"Depends what you call better."

Driveabilty. Downshifting to 4k rpm every 3-4 miles was miserable.

We're not talking NO2 boost here, just better power management. I wouldn't expect Ford engineers to be able to ship one ECM program that is perfect for all drivers/applications.

You seem concerned about the transmission stress. I'd much rather pull a transmission than an engine. In the bigger picture, I think proper maintenance like clean fluids and changing the filters regularly is the best thing you can do for engines/transmissions.

"You don't get more horsepower for free." Eh, I'm not so sure Ford had my RV at the top of they're list when optimizing the ECM patterns. It's not all about HP anyway.

I get what you're saying about after market mods, but when you have users posting improvements w/o increasing fuel consumption (sometimes even improvements), you're really just talking about better power management.

I know first hand the chassis you have was designed specifically for an RV. The guy that designed the engine/tranny combination for those was a friend of mine, and they program the ECU for the application.
On the other side, I agree with you that Maintenance goes a long way. Changing the programming will affect your lifespan. The question is: Do you care? Will you use it 300K miles?
Now, if you don't believe me, I can offer proff of this. Cruise America buys their RVs custom made, and their deal with Ford is that they have full warranty for the life of the coach until the coach is sold. Ford granted such warranty ONLY if they agreed to customized Tow/Hawl mode on at engine start up. They did this because the transmission will run the engine higher, and it suffers significantly less at higher RPMs. Ask anybody who bought an ex-rental from Cruise America and they will tell you their tow/hawl mode is on always.
As you see, Ford does customize their chassis for the specific application, and they understand exactly how their components are affected by changin parameters.
To your point, you may be OK with your engine/tranmission only lasting 100K-150K, and that is OK. I just wanted to make sure I shared the knowledge so you could make an informed desition.
On a different note, if you want to play with engine parameters, the Ford platform is the best one to do it. It is the most reliable platform you can find in RVs. I would even put it ahead of some DPs.
I an a Dodge and Chrysler guy, but my daily driver is a 2000 Town car Cartier L (Long), just broken into with 521K miles.


Alfa SeeYa, 2015 Jayco XL31, 2015 Itasca XL31, 2012 CA 25, 2008 CA 28. RV with most millage: 312K miles on a V10
Life rocks when your home rolls

rentman99

Memphis, TN

New Member

Joined: 08/20/2019

View Profile


Offline
Posted: 08/22/19 07:21am Link  |  Quote  |  Print  |  Notify Moderator

Good post. Thanks for the info..

marcsbigfoot20b27

Phx

Senior Member

Joined: 08/24/2013

View Profile



Good Sam RV Club Member

Offline
Posted: 08/22/19 08:36am Link  |  Quote  |  Print  |  Notify Moderator

Got the 5star tune on my dads 2006 31 ft motorhome, made a big difference. Pulls the hills better, better shifting and better throttle response.

According to them, many of the V10 in motorhomes never go into open loop fuel enrichment at WOT, this means there is more unused power left......argue away.

pnichols

The Other California

Senior Member

Joined: 04/26/2005

View Profile



Good Sam RV Club Member


Posted: 08/22/19 11:07am Link  |  Quote  |  Print  |  Notify Moderator

As a side note: I never operate our motorhome's V10 at WOT. I climb grades with Tow/Haul mode engaged and then push the gas pedal down until the tachometer reads no higher than 4000 RPM. Whatever gear and MPH speed results is what it is and I hold at that until the grade is over. I could tap more V10 horsepower by using WOT but why push it, even though the V10 can "take it".

BTW, given our RV'ing style of often being way out there driving or camping in the Western U.S., chassis reliability is the our highest priority -> way above floorplan, number of batteries, number of solar panels, tank sizes, number of slide outs, type of refrigerator, number of televisions, size of shower, comfort of cab seats, etc..


Phil, 2005 E450 Itasca Spirit 24V

map40

Florida

Senior Member

Joined: 01/15/2005

View Profile



Posted: 08/23/19 05:50am Link  |  Quote  |  Print  |  Notify Moderator

marcsbigfoot20b27 wrote:

Got the 5star tune on my dads 2006 31 ft motorhome, made a big difference. Pulls the hills better, better shifting and better throttle response.

According to them, many of the V10 in motorhomes never go into open loop fuel enrichment at WOT, this means there is more unused power left......argue away.


They are correct, no EFI engine ever goes into WOT no matter what you do or how you tune it. To get the computer to do WOT you have to be in a theoretical 20K feet above see level, maximun load, no elevation oxigen and a bunch of other variables.
No tuner will be able to get the engine in WOT either, unless you change the ECU and the injection system.

map40

Florida

Senior Member

Joined: 01/15/2005

View Profile



Posted: 08/23/19 05:52am Link  |  Quote  |  Print  |  Notify Moderator

pnichols wrote:

As a side note: I never operate our motorhome's V10 at WOT. I climb grades with Tow/Haul mode engaged and then push the gas pedal down until the tachometer reads no higher than 4000 RPM. Whatever gear and MPH speed results is what it is and I hold at that until the grade is over. I could tap more V10 horsepower by using WOT but why push it, even though the V10 can "take it".

BTW, given our RV'ing style of often being way out there driving or camping in the Western U.S., chassis reliability is the our highest priority -> way above floorplan, number of batteries, number of solar panels, tank sizes, number of slide outs, type of refrigerator, number of televisions, size of shower, comfort of cab seats, etc..

Power curve of the V10 peaks between 3200 and 4200. You can get more power reving it higher but you will be consuming more fuel. Your approach is the most conservative from the point of view of fuel consumption and powertrain lifespan conservation

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev

Open Roads Forum  >  Tech Issues

 > 2006 Grayhawk Ford e450 v-10: Power increase
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2020 CWI, Inc. © 2020 Good Sam Enterprises, LLC. All Rights Reserved.