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So this looks interesting (and big?) so is this the one...
I hope I’m proved wrong but it looks overly complicated and low quality. For the price difference I think JCR design, materials and build quality is better value.
I hope I’m proved wrong but it looks overly complicated and low quality. For the price difference I think JCR design, materials and build quality is better value.
I like the JCR system as well, and the quality and materials used but the price is on a different level from this unit ($3074 US) as opposed to JCR ( $5680 US), nearly double.
For us Canadians it is even worse! JCR price: $8000 Cdn
I hope I’m proved wrong but it looks overly complicated and low quality. For the price difference I think JCR design, materials and build quality is better value.
I expect its the prototype, so not production welds. JCR is twice the price and made of Titanium alloy. This one is regular Stainless Steel.
In the open mode this one is straight through like the JCR, but it merges the two inputs, whereas the JCR uses only one feed.
In closes mode all the exhaust goes through the silencer/ muffler which has it own merge space.
Actually I think its a pretty good design and should make closed mode quiet and open much louder.
JCR is also a good design and has a smoother gas flow design and MUCH lighter weight.
I expect its the prototype, so not production welds. JCR is twice the price and made of Titanium alloy. This one is regular Stainless Steel.
In the open mode this one is straight through like the JCR, but it merges the two inputs, whereas the JCR uses only one feed.
In closes mode all the exhaust goes through the silencer/ muffler which has it own merge space.
Actually I think its a pretty good design and should make closed mode quiet and open much louder.
JCR is also a good design and has a smoother gas flow design and MUCH lighter weight.
Our system merges both OPF exit points prior to the centre merge. All of the flow is back into the main pipe prior to the merge so regardless of valves open or closed the centre merge is seeing 100% of the exhaust flow.
Also, consider this system doesn't include tips when thinking about price (beyond the fabrication quality and materials used) Our system does include tips as the OEM tips are a massive restriction.
JC
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Our system merges both OPF exit points prior to the centre merge. All of the flow is back into the main pipe prior to the merge so regardless of valves open or closed the centre merge is seeing 100% of the exhaust flow.
Also, consider this system doesn't include tips when thinking about price (beyond the fabrication quality and materials used) Our system does include tips as the OEM tips are a massive restriction.
JC
So are you saying that this is also a merge point, open in the middle?
So are you saying that this is also a merge point, open in the middle?
BTW, Kudo's for including tips!
Yes, this is a merge with mixing from both banks. The cross section of the merge is super important. Ill see if I can grab a pic of the parts prior to welding to demonstrate.
The tips are a very important point from a costing perfective. We could make our system appear cheaper by allowing fitment of the OEM tips with our system but they just compromise the whole system and from a performance standpoint make it a pointless exercise so very early in the development we got rid of the stock tips and instead we have a V-band flange at that point to allow fitment of various tip designs we offer including silenced tips for those who need the ability to quickly reduce dB levels at the track
I have a question, could the JCR silencer which is used in the closed mode be bigger / more effective so that in this mode its more street-able? Im thinking I want to to run a dual mode exhaust in either open or closed mode, not dynamically changing like the OEM system does. There are a few remote control systems for the exhaust valves about.
Does either mode have any drone?
I have a question, could the JCR silencer which is used in the closed mode be bigger / more effective so that in this mode its more street-able? Im thinking I want to to run a dual mode exhaust in either open or closed mode, not dynamically changing like the OEM system does. There are a few remote control systems for the exhaust valves about.
Does either mode have any drone?
Our system uses inline silencers, they're 50mm internal diameter which is sufficient for flow and also effective enough from a silencing point of view. It would be possible to force the valves closed and run in this mode however its not something that we would recommend, the OPF already creates a significant amount of back pressure due to the design of the flange. It wouldn't be wise to add any restrictions as this would only exacerbate the issues. Hence why we ditched the OEM tips as that's like running a fire hose with a domestic sprinkler attachment fitted to the end.
Neither our silenced or non silenced system drones and neither is what I would consider to be loud. Our non silenced system is still below the max dB of a 100% stock 981 GT4 at WOT. The OPF is a very effective silencer in its own right.
05-12-2020 | 11:29 AM
JCR price: $8000 Cdn
