New to 1st Gens-Bobtail street build up - Dodge Cummins Diesel Forum
89-93 Performance Parts Discussion Discussion of Performance Parts For the 1st Gen Trucks No Advertising ...NO ADVERTISING

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post #1 of 52 (permalink) Old 01-01-2014, 10:45 PM Thread Starter
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New to 1st Gens-Bobtail street build up

First off I just picked this truck up yesterday but I deploy here very shortly so I wont be able to do anything with it till i get back.

Looking for suggestions and ideas for a bobtail build up. Its a 1990 D350 28k miles 1800hrs with 7.17 gears and a Detroit locker in the rear and a shortened frame making the whole thing less than 13.5 feet long. The poor thing sat for almost a year but even with it being 15 degrees it fired right up without having it jumped. When I was towing it home my truck trailer and the little guy weighted in a 19k so its not light.

Obviously the first step will be getting 3.54s so I can drive it at normal speeds. I will get rid of the steelies and put some decent wheels with some nitto 420s on there. Then get rid of the massive rear "bed" because its heavy and useless, Im thinking of puting a small wooden flat bed on there mainly because hacking down a regular ram bed would be counter productive. That followed by repainting the whole thing to get rid of the green dont know what color but was thinking on silver.

Then on the the motor, I built my CR to over 800hp and love playing with turbos but I dont know much about the fuel side of things on the VE. I want to test the limits of the VEs fueling first just to see how its like but to get into the 11s im game for whatever.

Transmission- the 727 has to go was thinking 47xx or even a 48re with the standalone controller

Just looking to build a fun little first gen thatll do 11s, money isnt really an object as being single allows me to spend as much as I want towards trucks lol

Looking forward to the help itll give me something to research and think about while deployed and give me something to look forward to when I get back as I plan to get parts shipped to my house and stack up in the garage waiting for my arrival











1990 D350 RegCab 100in wheelbase bobtail
2006 3500 Megacab Laramie 4x4 G56: Efi Live by Les at SBT, HTT 64/71/13ss over FI ETR S480/92 1.25 Racecover, Steedspeed, S&S 150% overs, Ats Dual Pumps, Valair Street Triple, Arp, Hamilton 110s, Wicked Bypass, Spool Aid, Raptor+XX+XDP sump, Isspro, 3in Thuren, Pure Performance,GDP ladder bars, Flex-a-lites, Borgeson, Bilsteins, Toyo, ETC. 5/14/2016 890hp/1524tq fuel only

Last edited by CalebZ400; 03-07-2016 at 10:17 PM. Reason: fixed images
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post #2 of 52 (permalink) Old 01-01-2014, 11:16 PM
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Looks like a fun project, I saw something similar to that for sale some time ago.

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post #3 of 52 (permalink) Old 01-01-2014, 11:55 PM
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Nitrous ? P7100 ? New Suspension ? 4WD ? Single or Twins ? Also I like the 47re Idea !

1992 Extended Cab Le - 6 Inch Skykjacker / Crossover Steering / Borgeson Shaft / Disc Brake Conversion / 37x12.5x16.5 GoodYear MTR / 16.5x12 Bart Wheels / BHAF / Pump Mods / Skyjacker 9000 Stabilizers / Autometer Gauges / 4 Inch Exhaust - 7 Inch Miter
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post #4 of 52 (permalink) Old 01-02-2014, 12:03 AM
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he said he wanted to push the limits of the ve first, im sure hell be swapping to p7100 soon tho haha id go with a 47rh since theres no electronics to deal with and a good intercooler swap since ur non-IC...i wonder how much cost/weight it would be to build an all aluminum flatbed for tht thing! looks sweet

under construction: 92 regcab/160 ppump built 47rh American Fab flatbed https://www.cumminsforum.com/forum/94...first-gen.html
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post #5 of 52 (permalink) Old 01-02-2014, 12:06 AM Thread Starter
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Quote:
Originally Posted by 1stgenbomber View Post
Nitrous ? P7100 ? New Suspension ? 4WD ? Single or Twins ? Also I like the 47re Idea !
Nitrous-Prob not unless its absolutely needed

p-pump- eventually but i want to see how well itll do with just the VE

suspension- stick with the stock leafs prob lower the rear slightly, traction bars will be a must till a 4 link down the road happens

4wd- meh

turbo-I liked the s467 and the s472 I had on my CR but spoolability with a mechanical pump might make them less fun but smaller single first then an s400 framed charger then depending on how that is twins could be an option

1990 D350 RegCab 100in wheelbase bobtail
2006 3500 Megacab Laramie 4x4 G56: Efi Live by Les at SBT, HTT 64/71/13ss over FI ETR S480/92 1.25 Racecover, Steedspeed, S&S 150% overs, Ats Dual Pumps, Valair Street Triple, Arp, Hamilton 110s, Wicked Bypass, Spool Aid, Raptor+XX+XDP sump, Isspro, 3in Thuren, Pure Performance,GDP ladder bars, Flex-a-lites, Borgeson, Bilsteins, Toyo, ETC. 5/14/2016 890hp/1524tq fuel only
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post #6 of 52 (permalink) Old 01-02-2014, 12:08 AM
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I think getting rid of the leafs would help alot they are very heavy

1992 Extended Cab Le - 6 Inch Skykjacker / Crossover Steering / Borgeson Shaft / Disc Brake Conversion / 37x12.5x16.5 GoodYear MTR / 16.5x12 Bart Wheels / BHAF / Pump Mods / Skyjacker 9000 Stabilizers / Autometer Gauges / 4 Inch Exhaust - 7 Inch Miter
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post #7 of 52 (permalink) Old 01-02-2014, 12:23 AM
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dump the 500 lb block of concrete from the rear also might give it alittle more get up n go .

Newest toy 2017 VW Golf Altrack TSI Sold 2013 Durango bit the dust 9-04-14 RIP Speedy the 67 vw died a very hot Death 5-17-2010 New toy 1985 crewcab longbed 4x4 conversion with a 93 cummin's and built 47rh with compushift mini controlled auto sxe62/70 turbo 6x13 injector's full 4 in Diamond Eye Exhaust ,366 spring and THD fuel pin .along with Boost and Pyro gauges and Tach .
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post #8 of 52 (permalink) Old 01-02-2014, 10:22 AM
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I've been looking for a air compressor set up like that, is that a custom job?

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post #9 of 52 (permalink) Old 01-02-2014, 01:06 PM
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I think I have seen that truck on ebay quite a few times. Or one that look real similar

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post #10 of 52 (permalink) Old 01-02-2014, 01:50 PM
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Quote:
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I think I have seen that truck on ebay quite a few times. Or one that look real similar

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they are all over as military surplus.




op, that is gonna be one tire frying sob! i would look into 4 linking the rear.

The 12v will RISE again.
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post #11 of 52 (permalink) Old 01-02-2014, 02:08 PM
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something that short and capable of 11's is going to be a handfull!

91.5 getrag, super 40 bosh190s 4" exhaust 4" intake bhaf. pump turned up custom fuelpin 2nd gen air horn timed to the head home made propane inj. painfully slow
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post #12 of 52 (permalink) Old 01-02-2014, 02:45 PM
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Cool little tug, I'd say 4 link, remove the bed, put some hotshot fenders on it with an aluminum 18 wheeler tank mounted sideways behind the cab, maybe a couple 6" stacks, would be interesting!

1993 d-two fiddy club cab short bed 5 speed with the usual mods...
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