Re: Cat 3208 Engines -- Buzzy's Question and Answer Forum

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04 /19/ 24, 6:46pm

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Subject: Re: Cat 3208 Engines

Author:
Dan

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Date Posted: 08/ 28/ 03, 1:46pm
In reply to: Jim Yule 's message, "Cat 3208 Engines" on 08/ 28/ 03, 5:54am

The 300 HP has engine electronic requirements not in older coaches, and a differnent capacity trans so I doubt it is true. There are however many 250 HP cats in the older wanderlodges as replacement engines.

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[> Subject: Re: Cat 3208 Engines

Author:
Jeff Miller
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Date Posted: 08/ 30/ 03, 6:50pm

The original engine (optional: diesel) in that coach is the 210hp 3208Na (non-turbo). As Dan mentioned, the 225hp or 250hp turbo is somewhat common for a replacement, only minor changes need to be made for the change. To install the 300hp 3208ATAAC there are no electronics, however the engine would need to be moved rearward to accomodate the aftercooler ahead of the radiator, a new radiator to allow the plumbing to get over it, a transmission rated for the net output of that 300hp engine (the original Allison is rated for 250), new air filter system and plumbing, etc. Not likely. It also would need a new differential (gears, bearings, case) to be able to use the 300hp, with the original gears the top speed at max. RPM would be about 60mph, about 5mph slower than the higher-revving original 3208NA!
In all, the '77 FC31/FC33 is fairly lightweight, will run well with a healthy engine and taller gears (mine ran 75 on the cruise control, would top 80mph with its 4.63:1 gears). With a 225hp or 250hp and those gears it should pull just about any grade with authority.
I also looked at that coach, don't believe the claim, but you never know.

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