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10-02-2013, 08:28 PM | #1 |
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Location: Glendale,AZ
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Building a 1985 Jimmy Ultra.
So what is with the Ultra,you ask. It is the motorout of a Buick Ultra ,a Supercharged 3800. It will be replacing a 3.4 crate motor that replaced a 2.8 ,soap maker.
Was going to do a 1948 - 1954 Chevy pickup but the wife said,why not do the Jimmy up? She liked this truck and it will be her daily driver. So on with the show. Out with the old. And out with the new/old. Randy
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-02-2013, 08:42 PM | #2 |
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Re: Building a 1985 Jimmy Ultra.
I've always wanted to put one of those in an S10. Neat project and I'll be watching the build!
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70 stepside 76 blazer 86 Silverado 20 Max Trailering 6.2 Crew 71 Nova SS My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=363634 |
10-02-2013, 09:13 PM | #3 |
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Re: Building a 1985 Jimmy Ultra.
I will reuse the tran's because it FITS! And it's paid for.
Well with some work on the converter. But will it go into the Jimmy's motor room? Well close. Will need to move the A/C pump can't get to the motor mount. Need some new motor mounts. Oil pan mod and what about the starter?
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-02-2013, 09:23 PM | #4 |
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Re: Building a 1985 Jimmy Ultra.
Then we have the intake? Will need to swing it around about 180 Deg's?
Ok thats not hard? Still working on that! So,if it get's in it needs to get out? I will reuse some of the stock system and some from a earlyer car with the S/C. Still need the other part.
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-02-2013, 09:27 PM | #5 |
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Re: Building a 1985 Jimmy Ultra.
And what happend to the A/C stuff?
Needed to add a idler pulley and build the bracket for the A/C pump.
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-03-2013, 09:45 AM | #7 |
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Re: Building a 1985 Jimmy Ultra.
With alittle work I should be at 300HP, 300Tq. Best thing will be off the gas we are looking for 24 MPG? But that maybe wishing.
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-03-2013, 10:29 AM | #8 |
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Re: Building a 1985 Jimmy Ultra.
Great idea! Subscribed
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1968 Chevy C/10 LWB V8 1983 K5 Blazer 1989 C1500 Stepside Reg. Cab V8 |
10-03-2013, 10:29 AM | #9 |
I know the pieces fit
Join Date: Nov 2007
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Re: Building a 1985 Jimmy Ultra.
We had an Impala a few years back with the NA 3.8 - great power and great mpg's. 24 mpg might not be unrealistic, hard to predict how the weight and aerodynamics will affect it but it'll be cool to see.
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10-07-2013, 10:24 AM | #10 |
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Re: Building a 1985 Jimmy Ultra.
Well, you ain't skeered! Looks pretty cool, I've have several, great motor! Wonder how that '85 2.8 700r4 is gonna hold up? Are you having it upgraded and beefed?
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Boppa's Old Yeller Truck Build, Old Yeller's New Heart! Project Buzz Bomb Flyin' Low! |
10-07-2013, 07:07 PM | #11 |
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Re: Building a 1985 Jimmy Ultra.
Going to leave it stock for now. I have been told that my 700r case can be built for big HP. Something about the V8 basket and more clutch plates/-+?
What about going from 2 1/4" out of the headers (cut down stock) to a 2 1/2" merg to a 3" to 3" Cat. then 3" down to 2 1/5 muffler to 2 1/4" tailpipe? If this sounds funny, it stuff I have on hand. I had ordered a exhaust from a older 3800 and found (when it got here ) it was not the same exhaust pattern. My bad! Other part will be here on Wed.
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-10-2013, 10:19 AM | #12 |
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Re: Building a 1985 Jimmy Ultra.
Parts are here for the other side. Cut,cut,cut!
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-10-2013, 01:43 PM | #14 |
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Re: Building a 1985 Jimmy Ultra.
Check the upper post. The passanger side is up their. This is for the driver's side.
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-11-2013, 10:08 AM | #15 |
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Re: Building a 1985 Jimmy Ultra.
At least it's tube you can hack into, not a casting!
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Boppa's Old Yeller Truck Build, Old Yeller's New Heart! Project Buzz Bomb Flyin' Low! |
10-11-2013, 08:52 PM | #16 |
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Re: Building a 1985 Jimmy Ultra.
Just found that the a tube is cracked! Bummer, more welding.
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-11-2013, 11:52 PM | #17 |
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Re: Building a 1985 Jimmy Ultra.
Lurk lurk
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10-15-2013, 01:14 PM | #18 |
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Re: Building a 1985 Jimmy Ultra.
Went with a cross over with a welded-in merge. Now working back to the 3" cat. So we go (stock cut up header) to 2 1/4" to 2 3/8 to 2 1/2 to 3" cat to 2 1/5 " exhaust cat back.
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-15-2013, 01:23 PM | #19 |
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Re: Building a 1985 Jimmy Ultra.
Went with a welded in cross over.
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-15-2013, 06:46 PM | #20 |
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Re: Building a 1985 Jimmy Ultra.
And what is this??? Its 2 1/2" on one end and 3" on the other.
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-15-2013, 07:46 PM | #21 |
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Re: Building a 1985 Jimmy Ultra.
What about a fuel pump? The crate motor needed a pump (no boss on the 3.4 motor for a pump) so we mounted it on the frame. My Jimmy did not have a pump in the tank. So what about mounting ( High Pressure EFI in line pump) it on the frame,in the same place but adding High Pressure fittings?
Randy
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-16-2013, 02:18 PM | #22 |
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Re: Building a 1985 Jimmy Ultra.
Some work on the exhaust pipe and cat. Thinking about using a flex from the cat to the muffler??
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-21-2013, 03:37 PM | #23 |
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Re: Building a 1985 Jimmy Ultra.
More new parts!! Now back to welding.
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-22-2013, 03:38 PM | #24 |
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Re: Building a 1985 Jimmy Ultra.
All welded! Now on to the blower.
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M29c Weasel M151 S10 JK4 Door F250 4x4 |
10-23-2013, 04:01 PM | #25 |
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Re: Building a 1985 Jimmy Ultra.
Cleaned up the blower. Looks good inside! Also found away to install the EGR valve.
Needed to add a port for the TB. Things are just alittle tite on the back so moved it to the side. And you need to be able it to install it.
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