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  #61  
Old 07-05-2010, 06:37 PM
The PIG Smith's Avatar
The PIG Smith The PIG Smith is offline
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You guys with Cummins powered J Trucks are killing me!

Excellent project.

How do you compare the M-715 engine bay to the civilian engine bay?
They look very similar to me.
Are you planning to run an intercooler?
If so, do you think there will any space issue with 6BT and the intercooler in the engine bay.

Zach from ZMJeeps has a sweet setup with his 4BT powered J20, but his 4BT leaves rooms in the front of the engine for a fan.

Are you having Scott from Tennessee Diesel Conversions assist with this project?
I've spoken with him via PM over on the 4BTSwaps forum and seems to be a super nice fellow.
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  #62  
Old 07-06-2010, 12:25 AM
tndonor tndonor is offline
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Im not sure what it is about the engine bay in the M series versus the civy J trucks. I havent put a tape to both but it looks like the fender wells are wider and the firewall to front valance in a bit longer.

I will be intercooling..... a must with twin turbos lol. It will go in the front valance and Ill cut two holes in the back side for the cooler inlet and outlet to stick out of.

Yes Scott from TN Diesel is on it with me, or I should say Im with Scott. We are looking at some FSJ conversion parts, not sure how that will pan out. Scott is a great guy. Super knowledgable about these B series motors and conversions in general.

I wont be toping this build. One this is my dream build from 15 years ago. Two, not sure how you top a twind M715 on one tons with a bunch of expedition goodies
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1980 J10 4BTA (p pumped) NV4500, d300, np205. Dana 60s Sold and parted out
1967 M715 Cummins 6B p7100
HX35/HT3B compound turbos. NV4500. 203/205 Doubler. 14B FF 4.56 Detroit/ HP60 4.56 OX
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  #63  
Old 07-06-2010, 12:28 AM
tndonor tndonor is offline
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Quote:
Originally Posted by Elliott
You covered a lot of ground!

I does when I post updates haha. It always seems to move slower when its under the knife and not on the road. Guess thats how it goes.
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1980 J10 4BTA (p pumped) NV4500, d300, np205. Dana 60s Sold and parted out
1967 M715 Cummins 6B p7100
HX35/HT3B compound turbos. NV4500. 203/205 Doubler. 14B FF 4.56 Detroit/ HP60 4.56 OX
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  #64  
Old 07-06-2010, 07:41 AM
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jeeperjoe jeeperjoe is offline
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m715

that is going to be the sweetest of jaw droppers, looks like you just caught that dowel pin, those heavy p7100 pumps really like to come loose, and wiggle, your probably considering the studs to accomodate the oring, an upper stage fuel plate would be easy to install at this point, shove it all the way forward for max fuel, governor spring for longer fueling thru rpm band, the larger intake horn from a third gen really ups the breathing and spool up, im running cooler tubz, what a difference, with 3" pipes, theres a lot of compound setups on 1st gen d.t.r. alot of induction views, youve probably checked, keep this thread rockin! by far one of my favorites, good work!
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  #65  
Old 07-07-2010, 08:05 AM
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lifted-04-lj lifted-04-lj is offline
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Where did you buy the seats? I want some for my Cherokee
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  #66  
Old 07-07-2010, 10:46 AM
tndonor tndonor is offline
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Quote:
Originally Posted by lifted-04-lj
Where did you buy the seats? I want some for my Cherokee

I got them off of Steelsoldiers. They are MRAP seats (Mine resistant ambush protected). Its a pretty beefy truck....used for the IEDs in Iraq.
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1980 J10 4BTA (p pumped) NV4500, d300, np205. Dana 60s Sold and parted out
1967 M715 Cummins 6B p7100
HX35/HT3B compound turbos. NV4500. 203/205 Doubler. 14B FF 4.56 Detroit/ HP60 4.56 OX
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  #67  
Old 07-07-2010, 04:28 PM
tndonor tndonor is offline
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Quote:
Originally Posted by jeeperjoe
that is going to be the sweetest of jaw droppers, looks like you just caught that dowel pin, those heavy p7100 pumps really like to come loose, and wiggle, your probably considering the studs to accomodate the oring, an upper stage fuel plate would be easy to install at this point, shove it all the way forward for max fuel, governor spring for longer fueling thru rpm band, the larger intake horn from a third gen really ups the breathing and spool up, im running cooler tubz, what a difference, with 3" pipes, theres a lot of compound setups on 1st gen d.t.r. alot of induction views, youve probably checked, keep this thread rockin! by far one of my favorites, good work!

The dowel pin is for the timing housing. The p7100 is heavy, but its not attached to the pin. The pin aligns the housing ot the block on the assembly line.

Another place that needs inspecting anytime one of the Cummin B series motors is out are the camshaft retaining bolts. If they ever walk, they usually break in two. Mine were good but a little locktite never hurts
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1980 J10 4BTA (p pumped) NV4500, d300, np205. Dana 60s Sold and parted out
1967 M715 Cummins 6B p7100
HX35/HT3B compound turbos. NV4500. 203/205 Doubler. 14B FF 4.56 Detroit/ HP60 4.56 OX
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  #68  
Old 07-07-2010, 10:49 PM
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TheJeeper TheJeeper is offline
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What are you going to do with the original drive-train and engine? Does it run?
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  #69  
Old 07-07-2010, 11:05 PM
tndonor tndonor is offline
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Quote:
Originally Posted by TheJeeper
What are you going to do with the original drive-train and engine? Does it run?

I sold the motor, trans, xfer case, pto winch setup when I stripped it down. It did run (barely) and I cant wait to compare and contrast lol!
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1980 J10 4BTA (p pumped) NV4500, d300, np205. Dana 60s Sold and parted out
1967 M715 Cummins 6B p7100
HX35/HT3B compound turbos. NV4500. 203/205 Doubler. 14B FF 4.56 Detroit/ HP60 4.56 OX
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  #70  
Old 07-07-2010, 11:14 PM
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TheJeeper TheJeeper is offline
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Quote:
Originally Posted by tndonor
I sold the motor, trans, xfer case, pto winch setup when I stripped it down. It did run (barely) and I cant wait to compare and contrast lol!

I'm sure. Lol.

I might be interested in the axles. I'm not too far away, either. (near Nashville)
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'65 J200: 230ci., T90A-1, built with T90J input shaft, Spicer 18, 2.47:1, D44s: 4.27s. 31x11.50x15 vintage Star M/Ts

Regarding a manual valve-bodied auto... "To me that's like trying to play a fiddle with a sawzall."

Nothing in written by me in ANY post can be used without my written consent.

~Eli's Jeep Supply~
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  #71  
Old 07-08-2010, 07:18 PM
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elij10travis elij10travis is offline
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wholy cow

wow this rig is freaking sweet how much all in all do you ahve invested into it looks like alot of money right now looks fun 2. that is over built but overbuilt means its harder to break and i like overbuilt. keep us updated what a sweet rig.
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  #72  
Old 07-08-2010, 08:39 PM
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jode jode is offline
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Not sure how to subscribe without posting, so consider this post a compliment on what looks like it is sure to be a mighty fine vehicle.
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  #73  
Old 07-09-2010, 08:49 AM
tndonor tndonor is offline
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I actually figured up roughly the other night what I have into it and the parts I have that arent on yet. Lets just say I used to say its cheaper than therapy......than is no longer valid.

I wont say how much but most get the idea when you get a built Cummins and compound turbos, new trans, doubler, and built axles. Oddly enough, its the odd ball small parts that end up costing more or at least more than one would think
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1980 J10 4BTA (p pumped) NV4500, d300, np205. Dana 60s Sold and parted out
1967 M715 Cummins 6B p7100
HX35/HT3B compound turbos. NV4500. 203/205 Doubler. 14B FF 4.56 Detroit/ HP60 4.56 OX

Last edited by tndonor : 07-09-2010 at 08:52 AM.
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  #74  
Old 07-09-2010, 03:41 PM
FSJeeper FSJeeper is offline
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TNdonor, I enjoyed watching your 4bt J truck build but this one is incredible. I'll be watching this buildup for sure.
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In Process: 91 Wagoneer, D61/71 axles with 3.07 gearing, NV4500, NP205. Cummins 6BT.

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  #75  
Old 07-19-2010, 09:45 PM
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Phillips889 Phillips889 is offline
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I am doing a 6bt swap in my j10 got a mint frame axles and the motor is on the way (1st gen 6bt nv4500 241) I know you were talking about motor mounts being ripped off by some bigger companies I would be interested in buying some from your buddy if he is willing. Thanks! -Trevor
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  #76  
Old 07-19-2010, 11:57 PM
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Tigger4X Tigger4X is offline
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Question 6BT swap

Quote:
Originally Posted by Phillips889
I am doing a 6bt swap in my j10 got a mint frame axles and the motor is on the way (1st gen 6bt nv4500 241) I know you were talking about motor mounts being ripped off by some bigger companies I would be interested in buying some from your buddy if he is willing. Thanks! -Trevor


TREVOR ...

I'm looking at doing a diesel swap into a J-truck as well but keephearing about necessary sheetmetal mods to stuff the 6BT in vs the 4BT going in no problem. How are you doing yours?


TNDONOR and JEEPERJOE ... sooooo many questions about diesels, MPG, and HP ... trying to be budget as much as possible but depending might slow the build time for better.
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Last edited by Tigger4X : 07-19-2010 at 11:59 PM.
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  #77  
Old 07-20-2010, 01:04 AM
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suzq044 suzq044 is offline
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Quote:
Originally Posted by tndonor
Yes Scott has a hand in this one. May be developing some Cummins conversion parts for the
FSJ crowd, we will see though

I hope so.
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  #78  
Old 07-20-2010, 04:37 PM
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H Callaway H Callaway is offline
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Look forward to the updates. Great engineering!
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  #79  
Old 07-20-2010, 05:32 PM
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Tigger4X Tigger4X is offline
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Quote:
Originally Posted by [B
tndonor][/b]
Yes Scott has a hand in this one. May be developing some Cummins conversion parts for the FSJ crowd, we will see though



Quote:
Originally Posted by suzq044
I hope so.


( ( ( X 2 ! ! ) ) )

SUBSCRIBED TO THAT FOR SURE!!
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Quote:
Originally Posted by will e
Keep in mind. Getting old is easy. Being old is hard.
Post #14 ~ http://www.ifsja.org/forums/vb/showt...=1#post1580206
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  #80  
Old 07-20-2010, 06:09 PM
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Casey Casey is offline
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that is all!
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