117 builds and bigger-What pipes to run?
Road Warrior
Joined: Jan 2006
Posts: 1,282
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From: British Columbia
RE: 117 builds and bigger-What pipes to run?
From what I've seen alot of guys with big motors are running true duals. The slight torque dip that the duals usually produce isn't as noticable and they let the big engines breathe better. Just some info that was passed on to me and I'am sure many more opions on the subject.
Ultimate HDF Member
Joined: Feb 2006
Posts: 5,939
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From: TX
RE: 117 builds and bigger-What pipes to run?
I think I understand John's original question.
Both he & I are running FatCat's on our motors (117 & 120 respectively). Both motors make monster torque with lower HP ratings ~ as compared to the torque.
Personally, I have been a HUGE advocate of the FatCat (as anyone who's been here a while knows). I have had great luck with it on many builds of many sizes.
I started with a Boarzilla on my 120, but it seemed to be lazy on the bottom. So I went back to FatCat, which is great on the bottom but might be holding it back on the top.
So, I think the question is more like "has anyone figured out a best of both worlds (lowend torque & upper end power) pipe for the bigger motors that really breath much more than their closer to stock counterparts?"
Both he & I are running FatCat's on our motors (117 & 120 respectively). Both motors make monster torque with lower HP ratings ~ as compared to the torque.
Personally, I have been a HUGE advocate of the FatCat (as anyone who's been here a while knows). I have had great luck with it on many builds of many sizes.
I started with a Boarzilla on my 120, but it seemed to be lazy on the bottom. So I went back to FatCat, which is great on the bottom but might be holding it back on the top.
So, I think the question is more like "has anyone figured out a best of both worlds (lowend torque & upper end power) pipe for the bigger motors that really breath much more than their closer to stock counterparts?"
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Tourer
Joined: Jul 2007
Posts: 288
Likes: 0
RE: 117 builds and bigger-What pipes to run?
Phil--Thank you for chiming in. Your re-phrase of the question is right on the mark. Hoping to have it both ways--low end TQ and longer rpm pulling power=HP.
RK Dave--I have heardr the RH true duals are a good set up for bigger builds. Might yuou have a dyno sheet you could share with us and some build details.
Actually--I have heard that the rinehart 2-1 is a good performer on bigger builds.....anyone have experience with this pipe?
RK Dave--I have heardr the RH true duals are a good set up for bigger builds. Might yuou have a dyno sheet you could share with us and some build details.
Actually--I have heard that the rinehart 2-1 is a good performer on bigger builds.....anyone have experience with this pipe?
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Ultimate HDF Member
Joined: Feb 2006
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From: TX
RE: 117 builds and bigger-What pipes to run?
ORIGINAL: choppers4life1
Actually--I have heard that the rinehart 2-1 is a good performer on bigger builds.....anyone have experience with this pipe?
Actually--I have heard that the rinehart 2-1 is a good performer on bigger builds.....anyone have experience with this pipe?
As hard as it may be to believe, the RH is even LOUDER than the FatCat w/perf baffle!
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Seasoned HDF Member
Joined: Dec 2005
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RE: 117 builds and bigger-What pipes to run?
I'm only guessing here, but my gut tells me the "best-of-both-worlds" pipe is going to end up being some kind of a hybrid. Something along the lines of an equal length 2-1 header with a modified and tuneable muffler/baffle combo.
I'm very curious to see how Dalton's 'Zilla-trapp performs. I understand it won't be an apples to apples compare to Phil's recent run because of the different throttle bodies, but should still give some kind of directional indication of the parts. He's already said he will do it when a great tuner can be secured. So we will wait and see on that.
Again, just my opinion, but an interesting topic that we can hopefully get some information about in the near future.
Zach
I'm very curious to see how Dalton's 'Zilla-trapp performs. I understand it won't be an apples to apples compare to Phil's recent run because of the different throttle bodies, but should still give some kind of directional indication of the parts. He's already said he will do it when a great tuner can be secured. So we will wait and see on that.
Again, just my opinion, but an interesting topic that we can hopefully get some information about in the near future.
Zach