Jim
It seems clear to me that our (GMCs) future is with new engines out of the
crate. It does not seem cost effective to continue to spend $10,000 to
$15,000 for a rebuilt 455 /403. An all new motor with all new metal all
new fuel and ignition , will have to be the answer.
What we need is a conversion kit. We are not going to be able to drive to
Fl without an engine for an install, so we need a kit. So I hope you can
spend some effort in designing such a package.
Toward this end, while talking with Jim Kanomata at our mini-rally, he said
there was one Cad motor mount that would bolt up to our configuration. He
could not remember the exact one but if you give him a call I think he
would help. He also said he has 3.55 finals back in stock.
Jim Kanomata 510-440-1101.
So go Jim go. You might be our best bet for the future.
gene
>Arch,
>
>Thanks for the input, I'll pass it on to my machinest. I am not going to
>use the Caspro cam, Crane cams are built here in Daytona and I think they
>have one that will do the job. For the sake of evaluation and that I want
>the motors to be mainly stock except for a few changes, I think we will
>build the motors equal and see what we have. The customer with the
>completely stock set up has been pleased with his coach performance for
>many years so anything I do to it will be a plus. The coach with the gear
>set up wants to pull a tandem wheel trailer better than he did before with
>was already acceptable. Both of these guys will be happy with whatever
>comes out, anything will be better than what they had.
>
>Until Nate is happier with the performance of his Caspro motor, I'm going
>to stick with my tried & true builders & less than radical mods internally.
> I want to build a reliable workhorse- guaranteed. , not a finicky lady
>that will leap on a good day. Nates motor has some quirks that I want to
>see cleared up before I go further. Chuck wants the dist. back to do some
>checking and I want to find the reason for the quirks.
>
>In evaluating the results of mods, you have to progress one step at a time.
> It will be interesting to see what the few mods we will be doing effects
>the 403 set up. By the way, I will be able to compare the new motors to a
>good stock 403 which we have in Chucks coach that will get the Cady set up.
> It will be interesting!!
>
>Jim Bounds
>------------------
>>In a message dated 12/18/1999 4:12:34 PM Central Standard Time,
>>
>>> I have 3 403 coaches in the shop for engine work side by side. One engine
>>> is going to be rebuilt with stock gears behind it but we're going to beef
>>> up the motor with a cam, forged pistons, and a few other things. The
>>> second one gets the same engine set up but with the full Caspro set up
and
>>> the 4 air bag system. The third coach gets a Cady engine swap.
>>>
>>JIM
>>
>>OMG now you are going to push me all the way out to the edge.
>>Glad to see one will be stock gears. If you are going with the Caspro
>>cam it should be fine. Somewhat stronger than it was. What compression
>>ratio and did you block off the crossovers on either? Now what do you
>>mean by full Caspro set up behind the second one? Are we at 3.55 gears?
>>If you are at 3.55 and a Caspro cam then I think this one will have torque
>>all over the place at low end but run out of steam on top end. If it is a
>>Mondello cam you should be good to go to 3200 at least depending
>>on how they degree in the cam. Jim talk to the people you trust. I am
>>only spouting theory. On the coach that you are putting the 3.55 gears
>>behind the engine you might want to retard the cam 2-4 degrees. If it is
>>a Caspro cam. Talk to Chuck he should have something to say on this.
>>I really dont think the two engines should be set up the same----more
>>theory. Now the one I want to hear about is the Caddy. What gears are
>>you putting behind it? There is a relationship between torque and weight
>>that I have not seen mentioned. You can increase the RPM of an engine
>>to increase horsepower only so far. If you are starting down the backside
>>of the curve with the extra RPM you have accomplished nothing. I dont
>>even know where the Caddy begins to strut it's stuff. I do think that if it
>>is designed for a 6000 lb car and you put it into a 12000 lb motorhome
>>you will want to up its RPM----unless it puts you on the down side of the
>>curve. Jim its all theory---talk to people you trust.
>>
>>Take Care
>>Arch 76 GB IL
>>
>>
>Jim Bounds/Co-op Motor Works Orlando www.gmccoop.com
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
It seems clear to me that our (GMCs) future is with new engines out of the
crate. It does not seem cost effective to continue to spend $10,000 to
$15,000 for a rebuilt 455 /403. An all new motor with all new metal all
new fuel and ignition , will have to be the answer.
What we need is a conversion kit. We are not going to be able to drive to
Fl without an engine for an install, so we need a kit. So I hope you can
spend some effort in designing such a package.
Toward this end, while talking with Jim Kanomata at our mini-rally, he said
there was one Cad motor mount that would bolt up to our configuration. He
could not remember the exact one but if you give him a call I think he
would help. He also said he has 3.55 finals back in stock.
Jim Kanomata 510-440-1101.
So go Jim go. You might be our best bet for the future.
gene
>Arch,
>
>Thanks for the input, I'll pass it on to my machinest. I am not going to
>use the Caspro cam, Crane cams are built here in Daytona and I think they
>have one that will do the job. For the sake of evaluation and that I want
>the motors to be mainly stock except for a few changes, I think we will
>build the motors equal and see what we have. The customer with the
>completely stock set up has been pleased with his coach performance for
>many years so anything I do to it will be a plus. The coach with the gear
>set up wants to pull a tandem wheel trailer better than he did before with
>was already acceptable. Both of these guys will be happy with whatever
>comes out, anything will be better than what they had.
>
>Until Nate is happier with the performance of his Caspro motor, I'm going
>to stick with my tried & true builders & less than radical mods internally.
> I want to build a reliable workhorse- guaranteed. , not a finicky lady
>that will leap on a good day. Nates motor has some quirks that I want to
>see cleared up before I go further. Chuck wants the dist. back to do some
>checking and I want to find the reason for the quirks.
>
>In evaluating the results of mods, you have to progress one step at a time.
> It will be interesting to see what the few mods we will be doing effects
>the 403 set up. By the way, I will be able to compare the new motors to a
>good stock 403 which we have in Chucks coach that will get the Cady set up.
> It will be interesting!!
>
>Jim Bounds
>------------------
>>In a message dated 12/18/1999 4:12:34 PM Central Standard Time,
>>
>>> I have 3 403 coaches in the shop for engine work side by side. One engine
>>> is going to be rebuilt with stock gears behind it but we're going to beef
>>> up the motor with a cam, forged pistons, and a few other things. The
>>> second one gets the same engine set up but with the full Caspro set up
and
>>> the 4 air bag system. The third coach gets a Cady engine swap.
>>>
>>JIM
>>
>>OMG now you are going to push me all the way out to the edge.
>>Glad to see one will be stock gears. If you are going with the Caspro
>>cam it should be fine. Somewhat stronger than it was. What compression
>>ratio and did you block off the crossovers on either? Now what do you
>>mean by full Caspro set up behind the second one? Are we at 3.55 gears?
>>If you are at 3.55 and a Caspro cam then I think this one will have torque
>>all over the place at low end but run out of steam on top end. If it is a
>>Mondello cam you should be good to go to 3200 at least depending
>>on how they degree in the cam. Jim talk to the people you trust. I am
>>only spouting theory. On the coach that you are putting the 3.55 gears
>>behind the engine you might want to retard the cam 2-4 degrees. If it is
>>a Caspro cam. Talk to Chuck he should have something to say on this.
>>I really dont think the two engines should be set up the same----more
>>theory. Now the one I want to hear about is the Caddy. What gears are
>>you putting behind it? There is a relationship between torque and weight
>>that I have not seen mentioned. You can increase the RPM of an engine
>>to increase horsepower only so far. If you are starting down the backside
>>of the curve with the extra RPM you have accomplished nothing. I dont
>>even know where the Caddy begins to strut it's stuff. I do think that if it
>>is designed for a 6000 lb car and you put it into a 12000 lb motorhome
>>you will want to up its RPM----unless it puts you on the down side of the
>>curve. Jim its all theory---talk to people you trust.
>>
>>Take Care
>>Arch 76 GB IL
>>
>>
>Jim Bounds/Co-op Motor Works Orlando www.gmccoop.com
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
wner-gmcmotorhome]On Behalf Of ELUBO
