Ditto on the fumes with the slingshotmod system byI do smell odor after cat delete, usually when stopped. I would seal the cockpit holes first. It's not any worse than riding a motorcycle and smelling everyone elses fumes. There are certainly tradeoffs for performance gains in most applications.
Did the codeman exhaust remove the cat? Perhaps putting the factory cat inline with the new system will help?Ditto on the fumes with the slingshotmod system by
@codeman ; of course the seller @Mike Mtl promised everyone in writing that this would not be a problem. Oh well, he has our money ($700 large!!), and we have exhaust in our face. As they say "a fool and his money will soon be separated". I would have never bought this system if this had been a known fact. One piece of advice I received was to extend the tailpipe out to the tire on the drivers side and it would help the problem. This is untenable so I will go to a muffler shop and see what they can recommend.
Great post, not being a mechanic I never thought about all of this. I do know enough to understand that your are definitely on to something here. What gets me is @Mike Mtl said in WRITING that exhaust fumes in the cabin are not a problem. Like I said, acting on blind faith will get you in trouble, BUT, we had so many positive comments early on that I thought it must be a great system! Thanks again for the post.As mentioned in other threads, the Slingshot uses a high compression / rich mixture configuration to make power. The cat. causes back-pressure (and high heat) in the header that burns the unburnt fuel, and then cleans up what's left. If the cat. is removed the unburnt molecules perfume the environment. To change the mixture the ECU would have to be re-mapped to burn leaner, being careful to not overheat the valve seats.
It is the case more separation between the driver and exhaust tends to reduce the amount of exhaust the driver is exposed to; same with wind, unless it is blowing the exhaust right at the driver.
It's unfortunate people didn't suspect this to be the case before doing a "cat. delete," and given the plug-and-play buyers vs. the normal "tuner" crowd this is understandable. "Tuners" or "gear heads" have prior experience with this and understand the "EPA complete burn" as compared to the raw fuel/raw power configurations.
The vendors on this forum have been similar to (or are) reputable motorcycle dealers, where service and quality are top-end, products are made in the U.S.A. when possible, and billet is best. One pays more for their products, but they bring them to market first, stand behind what they sell, and are happy to answer questions up front. If they're more of the hard-core type they might not fully understand how important a complete lack of unburnt fuel is to a "cager" (one who drives a car, known as a "cage"), as straight-pipes and washing up in gas is part of their world--you should see what they eat.
It's a "kit car," in my book. Welcome to a new set of experiences.
I really don't understand the problem. The only time your own exhaust fumes can be a problem is if you are sitting still. The exhaust from the pickup pointed at your head three feet away is giving you more fumes.
Here you goSo far I only asked Codeman if he personally smelled more exhaust. He said no and nobody had mentioned it. I guess know I know why Polaris sells Scented Advanced Fuel Treatment. Although good luck finding it. I checked with every big dealer in Denver nobody had it or knew about it!
I have been running 89 octane since my 3rd fill up (got the ride in March) and runs fine. Haven't done the CAT thing yet but will be soon.I did the CAT delete pipe and did notice some exhaust smell. I needed gas so I filled up with 87 octane and after a 1/4 tank the smell went away. Since this is a regular car engine I really don't think high octane is needed.