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11-07-2014, 08:18 AM
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#1
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Member
Winnebago Owners Club
Join Date: Mar 2011
Location: Everywhere USA
Posts: 85
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Upgrading gas engine
I have a '98' Ford 460 gas engine in a 38' Itasca. Are there any upgrades to achieve more torque or is it worth considering a V-10? I'm not going diesel at this time, so just upgrade gasser responses please.
Thanks
Thom
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11-07-2014, 08:26 AM
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#2
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Senior Member
Winnebago Owners Club Retired Fire Service RVer's
Join Date: Mar 2008
Location: Central Florida
Posts: 797
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Headers and 3" exhaust with flow through muffler will wake up your 460.
__________________
Peter
1997 F53 Adventurer 37rw
IAFF L-792 (Retired)
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11-07-2014, 08:38 AM
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#3
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,486
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Differences in engine length, possible transmission used, electronic controls and wiring.
Best to work with the 460, than attempt a swap, to the V-10.
Early 460's ( mid-late 70's) responded well to changing the timing chain and gears, back to 60's, 429 set up, to advance the cam timing, don't know if that change worked into the 90s though.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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11-07-2014, 09:06 AM
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#4
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Member
Winnebago Owners Club
Join Date: Mar 2011
Location: Everywhere USA
Posts: 85
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Sounds like I got a couple of engine heads answering, thanks so much for your input n since you're there, any way to cut down on engine noise? I was thinking insulation in dog house.
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11-07-2014, 09:21 AM
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#5
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Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,697
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An improved header and exhaust, e.g. the Banks kit, should give you a modest boost, though not as much as it would have on a 95-96 vintage. However, I think the most effective thing you could do is to add an auxiliary transmission, i.e. the Gear Vendors Over/Under Drive. Your 460 actually has plenty of horsepower (though at higher RPMs) but the Ford E4OD tranny does not do a good job of bringing that power to the rear wheels. The two top gears are economy oriented and then there is a large ratio change to 2nd gear to deliver lots of power but at very low speed (mph). With the Gear Vendor unit, you basically have twice as many forward gears and can use the 460's ample power in an optimal fashion for either power or speed/economy.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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11-07-2014, 10:30 AM
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#6
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Member
Winnebago Owners Club
Join Date: Mar 2011
Location: Everywhere USA
Posts: 85
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Thanks for the info Gary, is this a expensive fix?
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11-07-2014, 11:18 AM
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#7
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Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Aug 2002
Location: Clovis, CA, USA
Posts: 13,149
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The only thing I ever did to a gas engine that made a noticeable improvement in power was go to dual exhausts. That was a 79 Chevy 1/2 with the 350.
A couple years after doing that I had to go back to a single exhaust because of smog checks here in California. Really noticed the loss of power.
__________________
2004 Monaco La Palma 36DBD, W22, 8.1, 7.1 MPG
2000 LEXUS RX300 FWD 22MPG 4020 LBS
Criticism is easier than Craftsmanship
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11-07-2014, 11:24 AM
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#8
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Senior Member
Join Date: Aug 2013
Location: Cincinnati, OH
Posts: 849
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Good free flowing exhaust is pretty easy and lower cost. Using a timing chain set form the late 60's, or any aftermarket one for performance engines, will make a big difference as Ford used retarded cam timing in 70's and up due to emissions. Timing set swap is low cost, but more labor. Between exhaust and timing set it will be a lot better, don't forget to help the intake filter side a bit if you can.
If you really want more power, you can go with a stroker kit on the 460 and get more cubic inches. The 460 is easy to get 50-100 more cubic inches, but of course this is new engine and higher cost.
__________________
2017 Renegade Verona 36 VSB
2005 Kenworth Showhauler truck conversion. sold .
I used to have a handle on life, but it broke
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11-07-2014, 12:26 PM
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#9
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Senior Member
National RV Owners Club Freightliner Owners Club
Join Date: Oct 2013
Location: Southern California
Posts: 200
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Headers and flowmaster exhaust along with an intake upgrade helped my 1996 Jayco class c. E4OD transmission is definitely a challenge as well. I added a Trans-Command from Banks and it improved drivability significantly.
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Palm Springs, CA - 2005 National Tropi Cal 370LX on a Freightliner, Cat 350 power. Towing a Rinker R1 - Lake Havasu Bound!!
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11-07-2014, 01:25 PM
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#10
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Senior Member
Forest River Owners Club Ford Super Duty Owner
Join Date: Aug 2009
Location: Vaughn, WA
Posts: 1,460
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Headers and exhaust. That's all.
No difference between your '98 and the earlier '95-'96. Same systems.
The retarded timing chain was dropped in '88-'89 when the 460 went EFI so no need to open the engine up at all.
Adding insulation under the doghouse will definitely help quiet things down. I used the foil faced stuff from JC Whitney. Inexpensive and effective.
The Over/Under drive unit is nice IF you can afford it.
Headers and exhaust still give you the best bang for the buck. Start there.
__________________
Nick
1995 Coachmen Santara 360MB 36' w/slide.
Ford F53/460 chassis, 2020 Chev Equinox "toad"
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11-07-2014, 07:53 PM
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#11
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Member
Winnebago Owners Club
Join Date: Mar 2011
Location: Everywhere USA
Posts: 85
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Thanks to everyone for your comments and advice. Now comes the pricing, getting it done and paying for it.
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11-07-2014, 08:04 PM
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#12
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Senior Member
Winnebago Owners Club
Join Date: Mar 2014
Posts: 14,891
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While I understand your desire for more power I am of the opinion that it will run longer and more dependably if left alone. Generally speaking moer power is made by burning more fuel so your economy will likely go down with the additional expense of the add ons.
__________________
Gordon and Janet
Tour 42QD/InTech Stacker
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11-07-2014, 08:43 PM
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#13
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Senior Member
Georgie Boy Owners Club
Join Date: Mar 2014
Posts: 527
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Ford 460 in a 1988 Georgie Boy
Quote:
Originally Posted by Godtomley
Thanks to everyone for your comments and advice. Now comes the pricing, getting it done and paying for it.
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This is quite an interesting thread for me as well. I own a 1988 Georgie Boy with a 460 Ford. I'm about to put some money into that RV (residential refrigerator, new generator, etc). But, because the engine is so old and also because I have always had problems starting that engine, I'm just wondering if all the renovations to that RV would be worth it.
I wonder how I get to decide whether to fix what ails the engine or replace it. I think a new one is about $2500 or so?
Any pointers from anyone here?
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11-08-2014, 08:31 AM
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#14
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Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,697
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Yes, but so are headers & exhaust system upgrades. If you were thinking a $300-$500 fix, forget it. Nothing you can do for less then $thousands will have any noticeable effect. Headers and accompanying exhaust upgrade is less expensive than the transmission upgrade, but you still have the problem of getting usable horsepower to the drive wheels.
The '96 I had with the full Banks kit (header, exhaust, and their chip-assist) was still challenged on any hill because I was quickly forced down to 2nd gear with a max speed of about 30 mph. I needed a 2.5 gear to use the power I had because the stock 3rd was simply far to high.
The 460 has the raw horsepower, though the RPMs needed to get at it is annoying to some.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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