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+--- Thread: Exhaust for Project EM9D (/showthread.php?tid=1222)
Exhaust for Project EM9D - Rudolf_Diesel - 03-15-2010
I am going to have my exhaust redone from the flex pipe to the tail pipe, considering the current project I am taking suggestions from the group as to what you would you run if it were yours. Keep in mind I want to run a muffler to keep the drone down.
I have 4" exhaust on my truck, straight through (here kitty kitty)
and it drones on the freeway, but I love the sound of the turbo cause it sing sing sings.Your help is appreciated...
RE: Exhaust for Project EM9D - ForcedInduction - 03-15-2010
The stock resonator and muffler are a straight through design, I'd just cut off the center resonator or back muffler. Aftermarket mufflers wouldn't be any better unless you go with a 3" system.
http://www.superturbodiesel.com/std/straight-pipe-exhaust-t-625.html
RE: Exhaust for Project EM9D - Rudolf_Diesel - 03-15-2010
(03-15-2010, 08:46 PM)ForcedInduction The stock resonator and muffler are a straight through design, I'd just cut off the center resonator or back muffler. Aftermarket mufflers wouldn't be any better unless you go with a 3" system.
http://www.superturbodiesel.com/std/straight-pipe-exhaust-t-625.html
My original exhaust had the kidneys, which I removed and I added a straight through pipe to the OEM muffler.
I kind of wanted to complete the "performance" package to this project...
RE: Exhaust for Project EM9D - E300TSC - 03-16-2010
300HP is 300HP whether it's the 7.3 or the 3.0, it's processing about the same amount of air. I'd go a minimum of 3" since it's not working as hard as the truck engine.
I think I'm going 4" with an Aeroturbine muffler designed for Diesels but the jury's still out on that...
RE: Exhaust for Project EM9D - ForcedInduction - 03-16-2010
(03-16-2010, 05:17 AM)E300TSC 300HP is 300HP whether it's the 7.3 or the 3.0
But the torque and RPM at that 300hp is very different.
RE: Exhaust for Project EM9D - willbhere4u - 03-16-2010
good point! go 5 inch and dump it out of the side fender like an SLR McLaren
RE: Exhaust for Project EM9D - Kozuka - 03-16-2010
I have a question.. Whats the exhaust output flange size on your turbocharger? Why don't you just use that all the way back for the least restriction?
Like since I am using a 300TD W124 Down Pipe, for my stock engine install (I have a long list before Twin-Charger comes up haha.). I'm going to just use the 2.5" ( I think thats what it is ) all the way back. I don't think there would be any decrease in back pressure if your going from a 2.5" down pipe to a 4" particulate filter-back. But It wouldn't be nice to go from a 4" down pipe to a 2.5" exhaust.
RE: Exhaust for Project EM9D - E300TSC - 03-16-2010
(03-16-2010, 08:57 AM)ForcedInduction(03-16-2010, 05:17 AM)E300TSC 300HP is 300HP whether it's the 7.3 or the 3.0
But the torque and RPM at that 300hp is very different.
True dat!
RE: Exhaust for Project EM9D - CID Vicious - 03-17-2010
I'd have an exhaust shop fab up a straight system, no muffler, from the turbo to the back of the car. If you decide you want a muffler, carefully cut the back pipe and you can have an interchangeable system, though a 3" straight through muffler wouldn't be much more restriction, and with a twin-charged 617a...well I'm assuming cutting a few bucks out isn't top of the list. I do agree, though, if you're not doing the downpipe, just remove the resonator. 4" would be stupid, a 300hp PS is making, what, 600lb ft? If not more? That's a better indicator of the airflow, meanwhile a 617a would be more like 450lb ft at 300hp. Aside from how the hell you're going to get a 4" system under a unibody car that never had a performance variant from the factory...
Besides, 3", a shop's like ok, that's a bit more...4", leave your wallet and come back in a while.