ADDING PROPANE INJECTION TO THE CAT 3208 TURBO SP

[gregory O]

I actually think the sp is powered better than the v8 pt pound per pound. the
tire spinning is a issue on dirt roads and wet grass. Since motorhomes run
fully loaded all the time they never spinnout on good traction sufaces. but
surfaces with ;sand or 1/8in rock on top of asphalt ;wet grass or ;ice they
spinn away . in a fc when the spinning tires hit good traction surface the
long driveline takes the abrupt force and may twist. with the 2 foot driveline
of a pusher, the ring gear in the rearend where the drive force takes a 90 deg
turn takes the hit and proves to be the weakest part. I suppose there is a
hydrolic blowoff valve in the transmission to take the hit but all the lowend
torque demand cant be good.

Dodge had a big problem when they put a cummins in a pickup truck in 84 and
matched it with a gas engine proven transmission. operator driving demands
proved the transmission to not be able to hang with the extra power and torque.
I have a 96 Dodge cummins with 200Kmiles and am working on the 4th trans.
Greg of Tim&Greg
94ptca
Pismo Beach

--- In WanderlodgeForum@yahoogroups.com, "HANK" wrote:
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> GREG:
> You are correct on the UNDERPOWER of the SP....TOO bad BB did not put a 400
Cummins in the SP...OH well.....not sure the MAX HP for the ZF....I doubt if I'd
be spinnng the wheels though!
> Regards,
> Hank Hannigan
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> --- In WanderlodgeForum@yahoogroups.com, "TimV" wrote:
> >
> > Propane injection wont hurt the engine but it adds more hp to the equation
and may tax the trans. the zf was used because the allison wouldnt hang with
300hp, could be that the zf is set up for 500 hp and things would be ok?????.
the short drive shaft wont absorb any twist so all the torque added is at the
ring gear and the transmission. I tuned down the hp in a dump truck because I
twisted a drive shaft when spinning tires caught traction. went from 500 hp to
315. The 94pt is the best bluebird ever built, just go with the best and save
the money trying to make your underpower rig run like a pt
> >
> > Greg of Tim&Greg
> > or 'Same' as you refer to me.
> > 94ptca-
> >
> >
> > -- In WanderlodgeForum@yahoogroups.com, "HANK" wrote:
> > >
> > > Forum members:
> > > Oneof our 89SP owners added propane injection to his CAT and loves it!
> > > Cost about $1200 before labor.......
> > > better fuel mileage and more power.
> > >
> > > Anybody into this? I am considering putting propane injection on my 90SP
in the future.
> > > Regards,
> > > Hank Hannigan
> > > 90SP36
> > > In Illinois
> > >
> >
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