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Jeep Street and Performance Do you like to go fast in your Jeep?

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  #106  
Old December 17th, 2020, 08:05
notAhoser notAhoser is offline
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Re: Supercharged LS3 crammed into an XJ

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Originally Posted by Skruffy View Post
The unit takes only one wire from the GM ecm so it couldnít be CAN bus but not directly from the sensor either.

It must be using the tach output on pin black/48 then? That's a pretty basic circuit, but I don't know what's in the Novak box. It needs a pullup resistor on the input to the box, and somewhere the chrysler bus needs a terminating resistor or two depending. But you said you never removed any modules from the Jeep at all, yes? Just thinking out loud.


Normally the tach output is turned off in the tune, was that changed?
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  #107  
Old December 18th, 2020, 19:52
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Skruffy Skruffy is offline
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Supercharged LS3 crammed into an XJ

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Originally Posted by notAhoser View Post
It must be using the tach output on pin black/48 then? That's a pretty basic circuit, but I don't know what's in the Novak box. It needs a pullup resistor on the input to the box, and somewhere the chrysler bus needs a terminating resistor or two depending. But you said you never removed any modules from the Jeep at all, yes? Just thinking out loud.


Normally the tach output is turned off in the tune, was that changed?

You are correct, the module takes the signal from the GM pcm from pin 48.
Didnít remove any of the bud modules from the Jeep other than the transmission control module, and they are all working and the Tcm was out before and after the tach started working. Mystery to me but a happy accident I suppose.
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  #108  
Old December 18th, 2020, 19:56
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Supercharged LS3 crammed into an XJ

Got some work done on the intake and the intercooler.

The intercooler reservoir


All mounted

From the bottom, here you can see the three radiator fans as well.

Bracket welded on and painted. Speed holes cut





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  #109  
Old December 18th, 2020, 20:00
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Supercharged LS3 crammed into an XJ

Intake finished. The filter from the camaro was too wide to fit under my future hood. I cut a chunk out of it for the MAF sensor adapter.

Thi inside of the pipe with the breather valve.

Breather valve.


Jeep is running amazing. Wanted to get the exhaust today but ran out of time. Will try again Monday.
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  #110  
Old December 19th, 2020, 14:15
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Re: Supercharged LS3 crammed into an XJ

I put a quick video up on youtube for everybody.


https://youtu.be/IuT2dztwbVY
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  #111  
Old December 19th, 2020, 18:07
SlowXj SlowXj is offline
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Supercharged LS3 crammed into an XJ

That's impressive! I bet it's plum scary when you actually get on it. Awesome detailed work!

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  #112  
Old December 19th, 2020, 18:35
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Supercharged LS3 crammed into an XJ

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That's impressive! I bet it's plum scary when you actually get on it. Awesome detailed work!

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Thanks!
It is frightening. It feels like your are doing a wheelie at 30% throttle. I have been restricted to my street out of fear of the California air resource board nazis that inhabit SoCal. Hopefully I can get the exhaust on next week then I can flog without fear.
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  #113  
Old December 19th, 2020, 18:54
SlowXj SlowXj is offline
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Supercharged LS3 crammed into an XJ

Yeahhhhh I don't know how y'all handle that cali stuff... This simple southern boy needs to be left alone when it comes to that business lol

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  #114  
Old December 21st, 2020, 20:09
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Supercharged LS3 crammed into an XJ

After much ass pain with the uhaul corporate office I was able to get a trailer and load up skruffy for the trip over to the exhaust shop.
The owner did my exhaust for this Jeep once before a few years ago when I upgraded to a rear long arm so I know he is in good hands. The guy says I will have it back by Wednesday. Canít wait!
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  #115  
Old December 21st, 2020, 21:02
notAhoser notAhoser is offline
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Re: Supercharged LS3 crammed into an XJ

What are you doing for mufflers and stuff? Cats, I assume? I have to figure mine out soon because I don't want a loud exhaust on it. I have a G8 with a TVS2300 on it and other goodies and it's hard to keep it quiet.
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  #116  
Old December 22nd, 2020, 05:53
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Re: Supercharged LS3 crammed into an XJ

I'm very interested in what your exhaust man does for your muffler(s). I'm on version 8 of my exhaust system with the Clayton rear coils.

I have always had to find a balance between noise levels and off-road protection. I managed to get it quiet enough to hopefully pass inspection next year. My single 16" long DynoMax muffler is located in the rear quarter where the leaf spring shackle used to be. It doesn't intrude into the wheel well but it is below the bumper line and vulnerable to being crushed from below. I might have to make a skid plate for it that ties into the bumper and fuel tank skid. I will see how it goes. I could be on version 9 next year.
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  #117  
Old December 22nd, 2020, 15:31
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Re: Supercharged LS3 crammed into an XJ

If you are looking for a muffler that is built strong I can highly recommend the Hooker Aerochamber. Those are one tough built muffler. As to their noise level, that is a bit more subjective. I would say they are quieter than Flowmasters, but not as quiet as a turbo style muffler.
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  #118  
Old December 22nd, 2020, 17:51
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Supercharged LS3 crammed into an XJ

Quote:
Originally Posted by notAhoser View Post
What are you doing for mufflers and stuff? Cats, I assume? I have to figure mine out soon because I don't want a loud exhaust on it. I have a G8 with a TVS2300 on it and other goodies and it's hard to keep it quiet.

All four cats from the camaro are going in, the muffler will be tough because of the limitations on space due to the longarms in the rear.
To be honest my knowledge of exhaust systems is very limited. I basically asked the shop to make it as quiet as possible considering the space restriction and needed flow rate, and am not terribly concerned with what that ends up being so long as it works. When it is finished I will take some photos of the final setup.
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  #119  
Old January 1st, 2021, 15:18
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Re: Supercharged LS3 crammed into an XJ

Dig it! Subd for updates
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  #120  
Old January 6th, 2021, 10:26
notAhoser notAhoser is offline
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Re: Supercharged LS3 crammed into an XJ

Any updates on the exhaust?
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