Supercharged 6.0 TJ build - JeepForum.com

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post #1 of 21 Old 11-17-2012, 08:49 PM Thread Starter
Robert0069
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Supercharged 6.0 TJ build

Well just started the build today and wanted to open up to everyone's suggestions and or ideas for the build. Please chime in and give suggestions ideas as I am learning and don't wish to waste any time or money. Thanks in advance

Robert

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post #2 of 21 Old 11-17-2012, 09:23 PM
Sundowner
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Blown 6.0...very cool! What else are you going to be running? Tranny, t-case, axles...?

If it's worth doing, then it's worth overdoing.

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post #3 of 21 Old 11-17-2012, 10:35 PM Thread Starter
Robert0069
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Sundowner it has the dana 44 with 410 so I figure ill run that with stock t-case until i scatter that set up then go to 1 ton set up.
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post #4 of 21 Old 11-17-2012, 10:45 PM
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Will be keeping up with this. That is going to be a nasty setup.

Daniel

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post #5 of 21 Old 11-17-2012, 10:56 PM Thread Starter
Robert0069
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Bama yes I actually drove the hummer that the setup came out of and it was impressive. The guy was doing a duramax swap and i happened to be at the right place at the right time now I have to figure out if its going to be cheaper to buy a adapter for the 4l60 to np231 or go with a Chevy t-case. Im still learning so any info would help
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post #6 of 21 Old 11-18-2012, 12:11 AM
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http://www.novak-adapt.com/knowledge/tj_swap.htm

http://www.novak-adapt.com/knowledge...ine_mounts.pdf

Found those right quick. Might provide some help.

Daniel

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post #7 of 21 Old 11-18-2012, 01:18 AM
spazzedface
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Are you sure the 4l60 is strong enough?

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post #8 of 21 Old 11-18-2012, 08:28 AM Thread Starter
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Spazzedface i have been reading and looks like it will do for what I am using it for and hey if it fails ill goto 4l80
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post #9 of 21 Old 11-18-2012, 10:05 AM
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The 4L80 is long ... even slightly longer than a 6l80!

The 4L60e would be fine IF beefed up significantly ... 500-600hp expected with your blower ... don't ask me for the torque numbers ...
what you need is a race transmission ...

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post #10 of 21 Old 11-18-2012, 10:32 AM
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Quote:
Originally Posted by chmo View Post
The 4L60e would be fine IF beefed up significantly ... 500-600hp expected with your blower ... don't ask me for the torque numbers ... what you need is a race transmission ...
I'm in agreement. The 6.0 can produce torque in the low-400's without much effort and with a blower it's going to start getting pretty peppy. I'm not so sure that I'd trust ANY of the stock drivetrain with that kind of power. I'd be going for a toughened-up transmission and an Atlas case, and probably 9" stuff in the differentials. Alloy shafts and all the trimmings for sure.

If it's worth doing, then it's worth overdoing.

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post #11 of 21 Old 11-18-2012, 10:55 AM
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...

I stayed stockish with my LS1 (300ish hp and torque) and let the torque management for the 4l60e in the pcm alone ... on purpose ... to preserve my D44 with 4.88 on 33s (richmond gears, chromolied and trussed) for a while.

And still ... when I had some VSS adjustment issue until 2 days ago shifting from 1->2 with slightly above 2500rpm (it did not shift early enough bc of bad speed readings!) was jerking tires on pavement and in turns I had the feeling to sit on a bull

Now it shifts normal ... but fast and wheeeee ... the TJ is bungy cord accelerated from any signal light start


with 6.0 and blower:
if you skimp on the rest ... (budget issues e.g.) your gonna break things pretty quick!
I suggest in that case you swap your monster powertrain for a nice 5.3 or LS1 combo ... plenty of power in a TJ without breaking stuff or bank
A friend of mine has a tuned L92 and a 6l80 with paddle shift in his 4dr JK ... he destroyed his stock rear D44 in no time. And then on one side he shaved ALL wheel studs off his shortly after installed ford 9" ... you should see his face when his back tire was overtaking him. LOL

EDIT: in your pics do I see a supercharger or A TURBO!? That's going to be tight at the inner fenders and hot!

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post #12 of 21 Old 11-18-2012, 12:10 PM Thread Starter
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Thanks for all the info looks like santa may come early lol. Can anyone touch on the wiring as I am going to use the stock harness and the thread on the LS-1 swap page for the wires i need and the ones i need to replace.
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post #13 of 21 Old 11-18-2012, 04:06 PM
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Quote:
Originally Posted by Robert0069
Thanks for all the info looks like santa may come early lol. Can anyone touch on the wiring as I am going to use the stock harness and the thread on the LS-1 swap page for the wires i need and the ones i need to replace.
You're essentially going to run the 6.0 using the GM computer, and only interface with the Jeep systems when you need to do so... it's basically a standalone situation. What are you asking, specifically?

If it's worth doing, then it's worth overdoing.

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post #14 of 21 Old 11-18-2012, 05:17 PM
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ok .. reread some posts ...

so the 6.0 is a truck engine and not a LS2 ... LQ4 if out of a Hummer but with turbo ... less hp than a LS2 if naturally aspirated but a torque monster ... iron block. A beast with turbo... aftermarket!?

And your transmission is the already beefed up 4L65E ... good!
( good enough???? )

You need to check if drive by cable or drive by wire ... important for the harness infos and pcm. What year?
IF dbw the right tac module and the electronic pedal are a good idea too ... lol

Make sure you get that pcm with tune and all sensors as well ...

search for LQ4 turbo swaps and wiring harnesses. Check out speartech.com! John Spear is the right guy to ask and products and infos well worth the price!

mating some TJ gauges in is no biggie if the rest is sorted out ... maybe you want to go even aftermarket gauges.

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post #15 of 21 Old 11-18-2012, 05:20 PM
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i have a built 4l60e behind my stock 6.0 and ive trashed it twice now... id find another tranny

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1994 yj stretched, locked and loaded - 6.0l vortec lq4, 4l60e, np231, Dana 44s 37" interco trxus m/t, 3.5" bds front leafs, double triangulated 4 link rear on xj front coils.
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