1992F-250IDI
Full Access Member
i wanted to run ture daul stacks do they need a cross over pipe
do i need a cossover pipe
- Thread starter 1992F-250IDI
- Start date
Yes. IIRC the reason you run a crossover pipe is to balance out the exhaust pulses between the banks of cylinders. The engine will run more smoothly if you do.
1992F-250IDI
Full Access Member
how big od a pipe ?
I believe it should be the same diameter as the pipes you're connecting.
1992F-250IDI
Full Access Member
thank u
Huh? Where did this line of thinking come from? On what grounds do you make this statement when dealing with an engine that ideally wants zero backpresure in the exhaust? The Moosestang has had true duals for years, and it runs just as smooth as any other IDI's I have not similarly equipped.
badaceds650
Full Access Member
Huh? Where did this line of thinking come from? On what grounds do you make this statement when dealing with an engine that ideally wants zero backpresure in the exhaust? The Moosestang has had true duals for years, and it runs just as smooth as any other IDI's I have not similarly equipped.
was thinking the same thing mine has true duals and is smooth as can be
plywood
Recovered N/A
The technology seems to support something more like this these days.
http://www.summitracing.com/parts/MPE-10791/
I don't think you could possibly notice a difference in idle quality in a diesel with and without a crossover pipe, but I don't see why the same theory that it ultimately creates better flow for the exhaust would be different on a diesel than a gasser. No matter how open the exhaust is, it will have pulses.
I don't think it would be worth it on these trucks though as long as you have a good flowing exhaust since for the crossover to work right it needs to be equidistant from the collector on each side, which would create ground clearance problems. If you just have a straight crossover made, you would have to watch closesly, since most shops would do cruddy job of building it and have it sticking into the exhaust flow.
http://www.summitracing.com/parts/MPE-10791/
I don't think you could possibly notice a difference in idle quality in a diesel with and without a crossover pipe, but I don't see why the same theory that it ultimately creates better flow for the exhaust would be different on a diesel than a gasser. No matter how open the exhaust is, it will have pulses.
I don't think it would be worth it on these trucks though as long as you have a good flowing exhaust since for the crossover to work right it needs to be equidistant from the collector on each side, which would create ground clearance problems. If you just have a straight crossover made, you would have to watch closesly, since most shops would do cruddy job of building it and have it sticking into the exhaust flow.
93cc7.3
needs turbo power
one problem with true dual STACKS is the front fuel tank i guess if you did alot of bends you could get around the driveshaft and fuel tank but then lose the effect of TRUE duals
or maybe im just crazy
or maybe im just crazy
Alex S
Jeoff
Huh? Where did this line of thinking come from? On what grounds do you make this statement when dealing with an engine that ideally wants zero backpresure in the exhaust? The Moosestang has had true duals for years, and it runs just as smooth as any other IDI's I have not similarly equipped.
Actually its old but proven technology and is quite comen
look under mid pipe
http://en.wikipedia.org/wiki/Aftermarket_exhaust_parts
probably wont notice it on our lazy diesels but start looking under cars at the next hot rod show and you will find them
1992F-250IDI
Full Access Member
Huh? Where did this line of thinking come from? On what grounds do you make this statement when dealing with an engine that ideally wants zero backpresure in the exhaust? The Moosestang has had true duals for years, and it runs just as smooth as any other IDI's I have not similarly equipped.
i was thinking it didnt cuz they dont need bake pressure so do i or dont i
1992F-250IDI
Full Access Member
i dont have a front tank alot of fuel problems lead me to taking it out and so im good to go there
Optikalillushun
Registered User
on gassers a crossover helps a LOT. an h pipe is best for torque and x pipe for hp. on our lathargic IDIs i dont think it matters...or many big trucks.
Yea I'm not trying to discount the value of a cross over pipe on a gas exhaust system, but to me a cross over pipe on a diesel is just as dumb as putting a catalytic converter on one too, but obviously they do that also. 
tractorman86
Registered User
I could see it being worth while if you had some of those headers with true duals and a belt driven forced induction. In fact, I'd like to see that however otherwise it is a pointless expense
