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Crossover eliminator for 3.0. #765358 11/14/06 05:22 PM
Joined: Aug 2003
Posts: 2,311
Rauch_Off_Road Offline OP
Forum Moderator
I'm gonna have one fabbed up for my build and am wondering what kind of interest there is out there for more. I'm not looking to get rich or anything of these just wondering who would be interested in getting one.

This would basicly be a Y-pipe and a block off plate for the stock manifolds. 2" to 2.25 with maybe an o2 bung. I still have to work out how I'm gonna build it but the design it pretty simple and it will get rid on the stock crossover.

I don't know how much power this will free up but it will deffinately free up some. On the 3vzfe its usually worth ~10hp with headers being worth less then 5. If enough people are interested I'll do mine and take it to the dyno to see what its worth.

Initially I'm thinking the cost will be $180-$200USD with true mandrel bends and a flex section to make installation easier. Not the cheepest I know but bolt on, cheeper then headers. and gets rid of the crossover gasses coming into the manifold and onto cyl 6. The more I can have made the cheeper each one gets I'd like to get it down to $150 if I can.

let me know if there is interest and I'll put together a group buy.


(aka suprathepeg, aka Sean)
89 v6 SWB truck "BLACK BEAUTY" EB valves, P&P head 30 over.
95 FZJ80. Lifted. locked and rollin on 33s (my dream machine)
Re: Crossover eliminator for 3.0. [Re: Rauch_Off_Road] #765359 11/14/06 08:07 PM
Joined: Apr 2000
Posts: 4,230
OOP'S Offline
Roll Me Over
Sounds good, where to you plan on running it? I may be interested!!!!


David Fritzsche
1990 Ex-Cab V-6,5-speed, with a few mods
04.5 CTD Dodge 2500 Ram--Tow Rig
Roseville, CA

"Serenity through Sobriety"
Re: Crossover eliminator for 3.0. [Re: OOP'S] #765360 11/14/06 08:30 PM
Joined: Apr 2006
Posts: 131
D
dogtoy Offline
Wheeler
I have headers now but before that would've definately interested me. May want to include new bolts if you venture it, I like many before me, ended up cutting more than unbolting. Sourcing that kind of stuff becomes a pain and having it all there would be even more attractive. This way when you finally get that wretched crossover and bolts outta there just bolt on and go. <img src="/forums/images/graemlins/kewl.gif" alt="" />


2014 FJ
Re: Crossover eliminator for 3.0. [Re: dogtoy] #765361 11/14/06 11:45 PM
Joined: Aug 2003
Posts: 2,311
Rauch_Off_Road Offline OP
Forum Moderator
K I'll let you guys know how it goes.


(aka suprathepeg, aka Sean)
89 v6 SWB truck "BLACK BEAUTY" EB valves, P&P head 30 over.
95 FZJ80. Lifted. locked and rollin on 33s (my dream machine)
Re: Crossover eliminator for 3.0. [Re: Rauch_Off_Road] #765362 11/15/06 02:06 AM
Joined: Apr 2002
Posts: 3,568
Snowtoy Offline
Roll Me Over
You might consider designing the x-over pipe to go between the tranny and the front driveline, this way you could keep the O2 sensor in the stock place, and out of the way. I modified the Downey kit to run it this way, I didn't like how they have it designed to go below the driveline.


More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed
Re: Crossover eliminator for 3.0. [Re: Rauch_Off_Road] #765363 11/15/06 04:05 AM
Joined: Aug 2005
Posts: 229
K
Kutter Offline
Wheeler
Where did you get the 10 hp gain figure from?


1995 4Runner Limited V6 3.4 Liter 5 Speed 4x4
1995 4Runner V6 Auto 2WD

Re: Crossover eliminator for 3.0. [Re: Kutter] #765364 11/15/06 04:49 AM
Anonymous
Unregistered
I wouldn't mind doing some sort of crossover elimination with a better flowing y-pipe setup but I would want to keep the O2 sensor in the same location and the cat in the same location.

Re: Crossover eliminator for 3.0. [Re: Kutter] #765365 11/15/06 08:45 PM
Joined: Aug 2003
Posts: 2,311
Rauch_Off_Road Offline OP
Forum Moderator
Quote
Where did you get the 10 hp gain figure from?


This is from some of the Camry/Lexus es300 guys. Not exactly the same engine I understand but same exhaust setup. To be honest I'm expecting I'll see pretty significant results on mine but that's more to do with what I've done to my engine.


(aka suprathepeg, aka Sean)
89 v6 SWB truck "BLACK BEAUTY" EB valves, P&P head 30 over.
95 FZJ80. Lifted. locked and rollin on 33s (my dream machine)
Re: Crossover eliminator for 3.0. [Re: Rauch_Off_Road] #765366 11/15/06 11:14 PM
Joined: Feb 2001
Posts: 3,935
bkg Offline
Roll Me Over
Quote

This is from some of the Camry/Lexus es300 guys. Not exactly the same engine I understand but same exhaust setup. To be honest I'm expecting I'll see pretty significant results on mine but that's more to do with what I've done to my engine.


Even if it's worth 0 hp, it will be worth getting that huge heat-sink away from that cylinder...


Brian K. Gallus
I have nothing important to say.
Re: Crossover eliminator for 3.0. [Re: Rauch_Off_Road] #765367 11/16/06 02:07 AM
Joined: Aug 2005
Posts: 229
K
Kutter Offline
Wheeler
Where you thinking you would use the factory flanges at the manifolds and cat to weld the new pipes to?


1995 4Runner Limited V6 3.4 Liter 5 Speed 4x4
1995 4Runner V6 Auto 2WD

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