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Open Roads Forum  >  Tow Vehicles

 > discuss towing w/ Cad 500 vs other car

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whisperide

Golden Spike area

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Posted: 01/19/12 07:08pm Link  |  Print  |  Notify Moderator

Progress!!
Today I got the all the steel for the "bumper" hitch. Mock-up pics within 48 hours.


'06 GMC C2500HD RCLB gasser 4.10:1, 4L80E, custom camshaft
'84 Trans Am 6.2 diesel, 700R-4, custom Class-3 receiver
'69 F350 dually. GM 6.2 diesel, turbo, 700R-4, NP208 all pending.

whisperide

Golden Spike area

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Posted: 01/20/12 02:40pm Link  |  Print  |  Notify Moderator

Well, once again I've run out of saw blades, so this is as far as I got:




Kennedycamper

Algoa, Texas

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Posted: 01/26/12 10:27am Link  |  Print  |  Notify Moderator

Better stay with an engine that has at least 250 HP, or that will be the decideing factor in how much weight it will pull. The Chevy 350 can be made to tow. Better would be a SB 400 CI.

whisperide

Golden Spike area

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Posted: 01/21/12 08:13am Link  |  Print  |  Notify Moderator

My plans are a lot like this:
http://www.youtube.com/watch?feature=fvwp&NR=1&v=58NnJPi6138
But I should be able to do this:
http://www.youtube.com/watch?v=FXXd_ffIpog
and this:
http://www.youtube.com/watch?v=Weny9ttEh9I
and this IF I was stupid:
http://www.youtube.com/watch?v=Y-GRN_ow1r4
but probably nothing like this:
http://www.youtube.com/watch?v=uiJYWkMAPzk

whisperide

Golden Spike area

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Posted: 01/24/12 08:45pm Link  |  Print  |  Notify Moderator

Today I PayPal'd a guy for his used 3.54:1 gears for my Dana 60 axle. $30 plus shipping. Great investment considering the fuel savings. Now to sell my 4.10:1 gears and get my $30 back....

whisperide

Golden Spike area

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Posted: 01/26/12 07:31am Link  |  Print  |  Notify Moderator

I'm still waffling on what engine to use in this car. I'm down to 4.
1) Chevy 350. 25 MPG, maybe. 308 HP @ 5000 RPM, 365 ft-lbs @ 3500 RPM.
2) Chevy 4.3, can expect 28 MPG. 200 HP @ 4600 RPM, 260 ft-lbs @ 2800 RPM until add turbo boost.
3) Olds diesel 350. 35 MPG EZ, 105 HP @ 3200 RPM, 200 ft-lbs @ 1600 RPM.
4) Olds diesel 4.3, 40 MPG EZ, 85 HP @ 3200 RPM, 165 ft-lbs @ 1600 RPM until add turbo boost.

I love my 350, but it doesn't fit the theme of this car. It has done 27 MPG with my 3.23:1 axle. Good, but not amazing.

Jarlaxle

New England

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Posted: 01/28/12 11:44am Link  |  Print  |  Notify Moderator

From my (admittedly sketchy) knowledge of 4.3's, mostly gleaned from helping a buddy's brother build them for roundy-round racing: Single biggest help on a 4.3 V6 is probably headers...the stock "log" manifolds are pretty bad. (He would prefer stock heads & headers over Bow-Tie heads & manifolds.) I recall they neck down to only 1.5" in one place. I recall that fullsize van manifolds are the..."best" isn't appropriate..."least terrible" might be better. They CAN be swapped side to side if necessary.

I recall the block improved for 1996, with a stronger bottom end & thicker cylinder walls.


John and Elizabeth (Liz), with 3 nutty cats
My beloved St. Bernard, Marm, lost him 1/2/12
Current rig:
1992 International Genesis school bus conversion

whisperide

Golden Spike area

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Posted: 01/28/12 06:00pm Link  |  Print  |  Notify Moderator

Interesting point, but there are no headers for this, nor can I simply chop a tube off SBC V8 headers, appealing as that is. I'm stuck with whatever manifolds will fit, though there is the option of getting them Extrude-Honed.

whisperide

Golden Spike area

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Posted: 01/27/12 06:18am Link  |  Print  |  Notify Moderator

I sold my 350, to remove that temptation. I really don't need that much power.
I'm leaning toward the gasoline 4.3L V6
I won't even need any turbo boost to maintain 65 MPH up a 6% grade while towing a pop-up.
My lowered black 4.3 S-10 did 28 MPG at 70 MPH, with 700R-4, 3.42:1 & 26" tires.
So my T/A with 4.3 / 700R-4 / 3.54:1 / 27" tires should be capable of 30 MPG at 60 MPH.
Of course, I'll have to run synthetic lube in the axle this time, to make up for this axle being so much beefier.

whisperide

Golden Spike area

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Posted: 01/28/12 07:50am Link  |  Print  |  Notify Moderator

I've been researching the 4.3, in '92-'95 it made 200 HP with a big cam and bad heads. From '96-on it has made 200 HP with great heads and a lame cam. Put the good cam with the good heads, 220 HP is a sure thing.
I'll also do 1.6:1 full-roller rocker arms and an underdrive crank pulley from March Performance, for 235 HP. I think I can be happy with that.
The 3.54:1 gears are in transit, I have the UPS tracking number. And today I'm going after my FF D60 axle assembly. It would be exciting if it wasn't so much labor to torch the old u-bolts, while I'll be laying in the half-frozen mud.

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