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Unread 04-18-2013, 11:38 AM   #1
mrjeepinguy
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1996 ZJ 
 
Join Date: Apr 2013
Posts: 11
yj v8 chevy 283 need ideas for exhaust

I got this yj with a 283 v8 and a chevy 4speed and i want to run dual exuhast and ive hurd of purple hornies having a kit for this so its simple and out of the way has any one tryed this and i also wanted to get the 4wd working but idk about uesing the stock vaccum system is there a better alternative?

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Unread 04-18-2013, 11:55 AM   #2
87TPIYJ
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1987 YJ Wrangler 
 
Join Date: Feb 2009
Location: Jacksonville, Florida
Posts: 764
you can get the stock vacuum system to work if you dont want to buy anything else, its not hard to do. I have duals with turn downs infront of the axle. I used to like it, but now its too loud and fumes come back into the jeep sometimes. If I could do it all over again I would purchase headers that the collectors point straght down. That way I could cross over under the oil pan and run a single exhaust. That way there are no exhaust lines near the brake and fuel lines. Also its way cheaper because you only need one muffler and resonator (if you choose to have one).
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Unread 04-18-2013, 01:02 PM   #3
USMCBuckWild
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1991 YJ Wrangler 
 
Join Date: Apr 2012
Location: Sneads Ferry, NC
Posts: 977
Quote:
Originally Posted by 87TPIYJ View Post
you can get the stock vacuum system to work if you dont want to buy anything else, its not hard to do. I have duals with turn downs infront of the axle. I used to like it, but now its too loud and fumes come back into the jeep sometimes. If I could do it all over again I would purchase headers that the collectors point straght down. That way I could cross over under the oil pan and run a single exhaust. That way there are no exhaust lines near the brake and fuel lines. Also its way cheaper because you only need one muffler and resonator (if you choose to have one).
This.

I have 11.5" of lift, so clearance isn't an issue, but I'm not happy about the exhaust running right next to the fuel and brake lines. I am running dual 2 1/2 with flowmasters off of Hedman hedders. Runs well and sounds good, but i would prefer a single 3" out the back on the passenger side
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Unread 04-18-2013, 01:24 PM   #4
jimbob78cj
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1993 YJ Wrangler 
 
Join Date: Feb 2013
Location: Pheba, MS
Posts: 17
With that small of an engine, I'd stay away form the purple hornies. I have fenderwell headers on my 304 V8 CJ with a set of purple hornies and have no bottom end whatsoever. The headers have a 3" collector and the purple hornies that fit are way too big for that engine. Now don't get me wrong, once above about 3000 rpm it's sounds mean. Like I'm racing in a nascar race down the road. But that hasn't helped my mileage any.

-jim
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Unread 04-23-2013, 12:43 PM   #5
mrjeepinguy
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1996 ZJ 
 
Join Date: Apr 2013
Posts: 11
thanks for the help im prob goin to go with a 2 1/2" with some flowmaster 44 with turn downs befor the axel im just goin to be sellin this jeep any way i just wanted to get it done right befor gettin rid of it
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