Rising Sun Member Forums  

Go Back   Rising Sun Member Forums > Toyota 4x4 > General Tech Forum

Reply
 
Thread Tools
  #1  
Old 04-15-2009, 08:25 AM
Corbet's Avatar
Corbet Corbet is offline
Hard Core 4+
 
Join Date: Oct 2006
Location: Durango, Colorado
Posts: 3,953
Default 80 needs new exhaust

Well after a few band aids I think the exhaust on the FZJ80 is done. This morning the inlet tube on the muffler poped out again. I had it welded once already after last years run up to Wheeler Lake.

So I'm sitting here at work without a computer to search here or MUD. What's the concensus on 3" without forced induction?
__________________
Speski OffRoad LTD, Cargo Solutions for Toyota 4x4's http://www.SpeskiOffRoad.com
"80 series, with a fridge"
1976 FJ40, Project with little progress.
2004 Starcraft 10RT

Reply With Quote
  #2  
Old 04-15-2009, 10:53 AM
thelal thelal is offline
Lifted
 
Join Date: Oct 2008
Location: N of Seattle - was Longmont/CO
Posts: 102
Send a message via AIM to thelal Send a message via MSN to thelal Send a message via Yahoo to thelal Send a message via Skype™ to thelal
Default

My crashed 96 just got sold at Klode's (I was outbid)
If I can contact the buyer I'll pass along your way
as that truck had a brand new exhaust (incl new cats) put on just the week before it got totalled

brendan.lally@mail.com
720 652-0467
Reply With Quote
  #3  
Old 04-15-2009, 11:23 AM
Corbet's Avatar
Corbet Corbet is offline
Hard Core 4+
 
Join Date: Oct 2006
Location: Durango, Colorado
Posts: 3,953
Default

Quote:
Originally Posted by thelal View Post
My crashed 96 just got sold at Klode's (I was outbid)
If I can contact the buyer I'll pass along your way
as that truck had a brand new exhaust (incl new cats) put on just the week before it got totalled

brendan.lally@mail.com
720 652-0467
Thanks but I'm in Durango and need to get it fixed quickly.
__________________
Speski OffRoad LTD, Cargo Solutions for Toyota 4x4's http://www.SpeskiOffRoad.com
"80 series, with a fridge"
1976 FJ40, Project with little progress.
2004 Starcraft 10RT

Reply With Quote
  #4  
Old 04-15-2009, 11:47 AM
Hants's Avatar
Hants Hants is offline
Hard Core 4+
 
Join Date: Jan 2006
Location: Behind the bar
Posts: 1,227
Send a message via Yahoo to Hants
Default

I have no hands on experience, but I've done some research. Here's what I've gathered:

3" is great for forced induction
2.5" is the max for normally aspirated

There are more recent cats available that will allow you to go to just 1, and then run up over the frame rail to improve clearance. Mud has the make & model numbers.
__________________
Hants (KD0CXL) 97 LX450 Slee Armor, 285 BFG/AT, OME 2.5", Altitude Compensator, Kimberley Kamper

"that guy down in Colorado Springs" - Jeff

"Damn you, Hants White!" - CruiserDan

"Wanna race?" - Bill Morgan

"Live long, love lots, cruise often." - Robert Fortune
Reply With Quote
  #5  
Old 04-15-2009, 11:50 AM
Tch2fly's Avatar
Tch2fly Tch2fly is offline
Hard Core 4+
 
Join Date: Apr 2006
Location: Peachtree City, Georgia
Posts: 929
Default

Quote:
Originally Posted by Corbet View Post
Well after a few band aids I think the exhaust on the FZJ80 is done. This morning the inlet tube on the muffler poped out again. I had it welded once already after last years run up to Wheeler Lake.

So I'm sitting here at work without a computer to search here or MUD. What's the concensus on 3" without forced induction?
Good exhaust systems are a science, lot's of misconceptions out there

In my case I was looking to get rid of the resonator (and it's "whooshing") and get a bit more clearance under the muffler. I felt like 3" was too big so I went 2 1/2 with a 24" magnaflow and I've been happy with the sound (really can't say that if affected performace one way or the other)

Don't think 3" would be a problem other than the tight fit. Good luck
__________________
Mike W.
Reply With Quote
  #6  
Old 04-15-2009, 12:08 PM
Corbet's Avatar
Corbet Corbet is offline
Hard Core 4+
 
Join Date: Oct 2006
Location: Durango, Colorado
Posts: 3,953
Default

OK got a 3pm appointment at the local muffler shop. But a couple of things.

#1 Muffler guy is telling me I could have a CA emmisions specific vehicle? I have never heard of this with an 80. Thought all were 50 state legal meaning there were never 80's built specific to that market. Please confirm.

#2. I'd like to go forced induction someday so not having to redo this down the road would be nice. So 3" or 2.5".

#3. Hants please post a link to that part number thread on MUD if you have it.
__________________
Speski OffRoad LTD, Cargo Solutions for Toyota 4x4's http://www.SpeskiOffRoad.com
"80 series, with a fridge"
1976 FJ40, Project with little progress.
2004 Starcraft 10RT

Reply With Quote
  #7  
Old 04-16-2009, 06:00 AM
powderpig's Avatar
powderpig powderpig is offline
Hard Core 4+
 
Join Date: Aug 2005
Posts: 1,345
Default

I saw the sticker from you truck on Mud. I know in Cal they have to replace with a stock convertor. Worst case is if you have issues, just call up Oleg or find a 97 48 state computer and all is well then. Sensor and such do not change, but the computer does. Just more cost added to the equation.
I do not think you will have a problem. But the gentle man that does the exhaust, has he had problem before? or just just heard about problems with Cali truck or Cali cruisers in a specific way?
Reply With Quote
  #8  
Old 04-16-2009, 07:03 AM
Corbet's Avatar
Corbet Corbet is offline
Hard Core 4+
 
Join Date: Oct 2006
Location: Durango, Colorado
Posts: 3,953
Default

he has had problems before, but with other makes and models. He has not replaced a CA FZJ80 cat system yet.

Has anyone seen or done the exhaust up and over the frame without cat replacement on a OBDII truck? I've searched MUD without any luck.
__________________
Speski OffRoad LTD, Cargo Solutions for Toyota 4x4's http://www.SpeskiOffRoad.com
"80 series, with a fridge"
1976 FJ40, Project with little progress.
2004 Starcraft 10RT

Reply With Quote
  #9  
Old 04-16-2009, 10:24 AM
Hants's Avatar
Hants Hants is offline
Hard Core 4+
 
Join Date: Jan 2006
Location: Behind the bar
Posts: 1,227
Send a message via Yahoo to Hants
Default

Here's a newer thread that covers it...

http://forum.ih8mud.com/80-series-te...d-exhaust.html
__________________
Hants (KD0CXL) 97 LX450 Slee Armor, 285 BFG/AT, OME 2.5", Altitude Compensator, Kimberley Kamper

"that guy down in Colorado Springs" - Jeff

"Damn you, Hants White!" - CruiserDan

"Wanna race?" - Bill Morgan

"Live long, love lots, cruise often." - Robert Fortune
Reply With Quote
  #10  
Old 04-16-2009, 10:31 AM
Hants's Avatar
Hants Hants is offline
Hard Core 4+
 
Join Date: Jan 2006
Location: Behind the bar
Posts: 1,227
Send a message via Yahoo to Hants
Default

Here's another (covers 3" mostly, but good info for 2.5" too):

http://forum.ih8mud.com/80-series-te...t-upgrade.html

Edit: This thread is ST infected... first 2/3 is good. After-that, might as well tune it out.
__________________
Hants (KD0CXL) 97 LX450 Slee Armor, 285 BFG/AT, OME 2.5", Altitude Compensator, Kimberley Kamper

"that guy down in Colorado Springs" - Jeff

"Damn you, Hants White!" - CruiserDan

"Wanna race?" - Bill Morgan

"Live long, love lots, cruise often." - Robert Fortune

Last edited by Hants; 04-16-2009 at 10:35 AM. Reason: Read down the thread
Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -6. The time now is 02:29 AM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.