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Old 02-27-2012, 02:10 PM   #21 (permalink)
Zion Zev
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Quote:
Originally Posted by wro2 View Post
Here is our experience with no overdrive. We have the TH400 in the P30 grooming van. On the freeway it gets about 10 or 11 mpg at no more than 65 mph. Going up a steep hill without the HHO working, it slows down to about 45 or 50 mph. Then it shifts to 2nd and makes the motor scream.

A panel van is never going to get great mpg on the freeway. With the 6.2 it will get livable mpg. If you have a lot of hills OD may not buy you much.

I am hoping to put a turbo on ours, to get more air into it on these hills. There are others running the 6.2 in RVs that have had better mpg but I think they have better aerodynamics.

P30 are pretty big than my one P20. I have gone in 80 mph once but too loud rpm. I would believe 6.2l diesel turbo would have lot torque and running high rpm not good. I would able use OD only when going down and flat plus NV4500 1st gear is nice for getting out in struck snow or mud.




Quote:
Originally Posted by surprised View Post
The problem with the NV4500 isn't the cost, it's $125 at Pick-N-Pull. The problem is needing at least 3 well-muscled men to lower it slowly as you finish disconnecting it. Then if you can find them, you have to buy them beers and pizza. I've passed on a couple of NV4500s for the lack of helpers.

Oh thats good idea about at pick n pull. but how you do know if good or trashed nv4500 tranny? what year & model I can find them? after 1994 something I think?
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Old 02-28-2012, 09:03 PM   #22 (permalink)
Zion Zev
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Finally pulled out the TH350 transmission and now next 350cid engine... not much work today since too cold outside.

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Old 02-29-2012, 11:10 AM   #23 (permalink)
Gasoline Fumes
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Quote:
Originally Posted by Zion Zev View Post
Good question. Its at rear of engine valley. If its in the way the doghouse thing, I would delete it and put isolated 12v electric vacuum (from old ford escort diesel) somewhere else. But I think it will fit ok because it have factory 350 engine in van which the dist is there rear too.
I've seen a P30 with the vacuum pump in the back. Seems to fit just fine. Oddly the port was capped off.
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Old 02-29-2012, 07:04 PM   #24 (permalink)
Zion Zev
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Originally Posted by Gasoline Fumes View Post
I've seen a P30 with the vacuum pump in the back. Seems to fit just fine. Oddly the port was capped off.

I am glad it would fit no problems!




Not much to do today since its snowing here...



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Old 03-04-2012, 02:42 AM   #25 (permalink)
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Finally pulled out the 350 engine out the van and now I can start work on 4x4




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Old 03-04-2012, 02:07 PM   #26 (permalink)
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Quote:
Originally Posted by surprised View Post
The problem with the NV4500 isn't the cost, it's $125 at Pick-N-Pull. The problem is needing at least 3 well-muscled men to lower it slowly as you finish disconnecting it. Then if you can find them, you have to buy them beers and pizza. I've passed on a couple of NV4500s for the lack of helpers.
I have used ratchet straps in the past to lower a tranny by myself,works great,just slow....the you can save the pizza and beer for yourself!
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Old 03-24-2012, 07:06 PM   #27 (permalink)
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Just little updated... looks very good so far!


I wondering it possible to swap the front diff ratio gut inside? this front one has 4.10 or 4.55 I think while my rear diff full floater 3.73 ratio.





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Old 03-25-2012, 11:07 AM   #28 (permalink)
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That thing is gonna be pretty cool, nice touch with the "4x4" emblem
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Old 04-06-2012, 07:11 AM   #29 (permalink)
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Quote:
Originally Posted by Zion Zev View Post
Just little updated... looks very good so far!


I wondering it possible to swap the front diff ratio gut inside? this front one has 4.10 or 4.55 I think while my rear diff full floater 3.73 ratio.







Your going to have to swap the differential ratios. Two different ratios going into the T-case when in 4x4 will make the t-case go boom.

SM465 with 3.73s the engine will be screaming at 60 mph. If you don't' plan to do highway driving you may be ok, but i'd shoot for 3.42s. After all the truck is large, but it's all aluminum so it's not as heavy as it looks when empty.

Remember the SM465 has no overdrive. In my K-5 i've got 3.08 gears. Very tall highway gears, so while getting moving off the line can be described as painful, once rolling i can lay into the pedal and she speeds up quick. I don't "run out of gear" but i can't tow a damn thing either. That's what the other truck is for.

Also at 60 mph with the 3.08s(remember no OD on an SM465) i'm right around 1900-2000 RPM. Right in the sweet spot of the engine.
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Old 04-06-2012, 12:21 PM   #30 (permalink)
Zion Zev
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Quote:
Originally Posted by IamDave0887 View Post
Your going to have to swap the differential ratios. Two different ratios going into the T-case when in 4x4 will make the t-case go boom.

SM465 with 3.73s the engine will be screaming at 60 mph. If you don't' plan to do highway driving you may be ok, but i'd shoot for 3.42s. After all the truck is large, but it's all aluminum so it's not as heavy as it looks when empty.

Remember the SM465 has no overdrive. In my K-5 i've got 3.08 gears. Very tall highway gears, so while getting moving off the line can be described as painful, once rolling i can lay into the pedal and she speeds up quick. I don't "run out of gear" but i can't tow a damn thing either. That's what the other truck is for.

Also at 60 mph with the 3.08s(remember no OD on an SM465) i'm right around 1900-2000 RPM. Right in the sweet spot of the engine.

Yes your right, I was planned to use both 3.73 or 4.10 ratio because it will load RV stuff and I think 3.08 will be horrible climbing up hills while loaded in van.

The SM465 will have OD same like NV4500 if you just add the auxiliary gear box in front of SM465. ( http://www.advanceadapters.com/products/pn-760002m-27/ ) then we have a winner! a nearly bullet proof tranny with OD gear box not a bad idea...

Just look like that:



1st...............6.55
1st over......4.78
2nd.............3.58
2nd over....2.61
3rd..............1.70
3rd over.....1.24
4th..............1.00
4th over.....0.73

Rev.............7.00
Rev over....5.10

Last edited by Zion Zev; 04-06-2012 at 12:35 PM.
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