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I have finished the installation of my hybrid exhaust system. I dubbed it SuperTrickk because it incorporates the venerable Supertrapp core system n a Dual Megaphone Jardine Spaghetti pipe.
The 'ol black 4-1 header with the carbon fiber R1 can performed well but like Dan Hodges said..."It looks like a stove pipe!"
He was right. I did look kinda funky. And considering the small fortune I had tied up in this bike is simply did not make sense to go third rate on the exhaust.
So I set out on a quest for a pristine Jardine Spaghetti pipe with dual megaphones. These are exceptionally hard to find because Jardine quit making them years ago. I saw one NOS on ebay a few months ago but forgot about it and the auction ended with me not getting to bid. No matter...it went for a whopping $550.
The closest I found was a good used one When I drove to Chi-town to pick up my 79 F I went 90 miles north to Sheboygan and got a nice used one.
The header pipes were in good shape but I had to re-chrome the megs. I knew the stock baffles in this Jardine would not flow enough for Zillas big bore as GNEPIG found that out on his dua meg setup and went with a straight flow through V&H baffle.
I consulted with our resident real guru Dan Hodges (the only guru with less than 200 posts) and got a grea idea from him. He told me Supertrapp would sell their cores and diffuser caps They would fit this megaphone. So I called Supertrapp and got the order placed for two 4" cores and two 4" diffusers with a bunch of plates.
Here's the cores.
They have a 2" OD and a 4" ID. They fit perfectly inside the Jardine meg. I had to trim about 2" off the end of the baffle but they worked well.
These cores are about $40 each and a wrapped in ceramic fiber. The caps were about $40 each and came with 12 plates but I had to order 24 more plates to get the diffuse past the end of the pipe sufficiently for flow.
Here' shots of the system mounted:
The exhaust is performing very well. The addition of this system gave me much more low and mid range torque. This is a huge benefit for an Eleven that tips the scales at almost 700 lbs nude. The butt dyno tells me I lost a little on top but it's not significant. Once I get it tuned I will likely put it on the dyno just to see. I'm guessing my top HP dropped from 94 at the rear wheel to around 90 or 91. But the torque has certainly gained everywhere most notably from 2500 to 6000.
And last but not least the system is far and away more pleasing to the eye...at least for me.
Stay tuned...I'll be reporting back.
The 'ol black 4-1 header with the carbon fiber R1 can performed well but like Dan Hodges said..."It looks like a stove pipe!"
He was right. I did look kinda funky. And considering the small fortune I had tied up in this bike is simply did not make sense to go third rate on the exhaust.
So I set out on a quest for a pristine Jardine Spaghetti pipe with dual megaphones. These are exceptionally hard to find because Jardine quit making them years ago. I saw one NOS on ebay a few months ago but forgot about it and the auction ended with me not getting to bid. No matter...it went for a whopping $550.
The closest I found was a good used one When I drove to Chi-town to pick up my 79 F I went 90 miles north to Sheboygan and got a nice used one.
The header pipes were in good shape but I had to re-chrome the megs. I knew the stock baffles in this Jardine would not flow enough for Zillas big bore as GNEPIG found that out on his dua meg setup and went with a straight flow through V&H baffle.
I consulted with our resident real guru Dan Hodges (the only guru with less than 200 posts) and got a grea idea from him. He told me Supertrapp would sell their cores and diffuser caps They would fit this megaphone. So I called Supertrapp and got the order placed for two 4" cores and two 4" diffusers with a bunch of plates.
Here's the cores.
They have a 2" OD and a 4" ID. They fit perfectly inside the Jardine meg. I had to trim about 2" off the end of the baffle but they worked well.
These cores are about $40 each and a wrapped in ceramic fiber. The caps were about $40 each and came with 12 plates but I had to order 24 more plates to get the diffuse past the end of the pipe sufficiently for flow.
Here' shots of the system mounted:
The exhaust is performing very well. The addition of this system gave me much more low and mid range torque. This is a huge benefit for an Eleven that tips the scales at almost 700 lbs nude. The butt dyno tells me I lost a little on top but it's not significant. Once I get it tuned I will likely put it on the dyno just to see. I'm guessing my top HP dropped from 94 at the rear wheel to around 90 or 91. But the torque has certainly gained everywhere most notably from 2500 to 6000.
And last but not least the system is far and away more pleasing to the eye...at least for me.
Stay tuned...I'll be reporting back.
) and a set of jardine turnouts I want to mate to them eventually.
, did not want to knock such an other wise really cool bike. I have one set of OEM pipes that are in "restorable" condition. Been wondering what I'd have to do to em to keep from strangling the motor but not so F'en loud as it is now.
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