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post #1 of 14 (permalink) Old 05-16-2009, 11:42 AM Thread Starter
 
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Supertrapp on my Revolt

Just wanted to post up a quick pic of the Supertrapp I just put on my Revolt. Haven't had a chance to try it yet. I'm gonna combine this with the dual intake filters from another thread. Will let you all know how it plays together.
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post #2 of 14 (permalink) Old 05-16-2009, 02:25 PM
 
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Re: Supertrapp on my Revolt

you should have left the circle part on you needed it for back pressure. the buggyworld guys did the same as you did.
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post #3 of 14 (permalink) Old 05-16-2009, 02:41 PM Thread Starter
 
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Re: Supertrapp on my Revolt

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Originally Posted by XMOTORCR View Post
you should have left the circle part on you needed it for back pressure. the buggyworld guys did the same as you did.
And how did it work out for the Buggy World guys? IE: no circle leading up to the exhaust. Good? Bad? I'm assuming bad or you would not have brought it up. OK............so I'm going to over analyze it with what little knowledge I have of exhaust technology. But it seems that backpressure is created by the muffler while evening out the flow and creating better scavenging from the cylinders is caused by the tube leading up to the muffler.

Right? Wrong? I could understand needing the circle part for even flow and scavenging. But to add back pressure???? Not sure I see that one.

Just thinking out loud. Please steer me if you are more knowledgable (which wouldn't take much in this case).
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post #4 of 14 (permalink) Old 05-16-2009, 03:09 PM
 
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Re: Supertrapp on my Revolt

it was lacking in top end power for them if i remember correctly. i might be wrong calling it back pressure but what you did was remove the muffler and then shorten the head pipe by removing the circle part. then added a new muffler, you can try it just to be sure.
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post #5 of 14 (permalink) Old 05-16-2009, 05:37 PM Thread Starter
 
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Re: Supertrapp on my Revolt

Yes, I think we are saying the same thing. Removing the runner portion may (and perhaps that is what Buggyworld guys noticed) reduce the top end because it won't want to flow smoothly and scavenge as well as before.

Worst case I will add the circle part back in and mount the supertrapp out the back by 3" more.

Thanks for the heads up. Will probably be a few weeks before I get a chance to try it. I will report what I find!
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post #6 of 14 (permalink) Old 05-17-2009, 03:36 PM
 
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Re: Supertrapp on my Revolt

Sorry i just put an exhuast on my new xl and i want to know how to make a new post so i can put pictures and explain what we did
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post #7 of 14 (permalink) Old 05-18-2009, 09:00 PM
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Re: Supertrapp on my Revolt

looks sweet
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post #8 of 14 (permalink) Old 06-14-2009, 04:20 PM Thread Starter
 
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Re: Supertrapp on my Revolt

I ran the new setup today. The exhaust was as pictured above. Straight to the supertrapp. I removed the intake and went to two K&N filters directly to the throttle valve inlets. They are the stock sized filters.

My overall impression is that it is definitely "peppier" than the stock setup. I was able to push it to 8500rpm, which I wasn't able to do with the stock setup (around 8k). I didn't see any issues at top end, as good or better than stock. And in fact, the mid-range pulls a lot better. I would say it was a definite improvement over stock!

I also took my GPS and recorded top end. I was able to hit 73.7 mph when turning about 8,100rpm. On another run I got it up to about 8,300 to 8,500 rpm but didn't have my gps with me. So I figure I was about 75 to 80 mph on that run!!!! I am running 26" tires. So that is going to help the topend over stock for the same rpm.

Let's see a RZR-S keep up with that!!!!!!!!

BTW: My speedo was WAY off. It was reading something like 50mph. So.........I don't use it anymore. And I don't feel like trying to get it to work right.
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post #9 of 14 (permalink) Old 06-14-2009, 09:00 PM
 
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Re: Supertrapp on my Revolt

I am glad to hear that your car ran good with the super trap exhaust. It is hard to tell if it would run better with a longer mid pipe, but the seat of the pants dyno tells a lot. I guess you would have known if it fell flat. We are getting pumped about going to St. Anthony next week. We will have four revolts, two revolt xl's and one turbo RZR there. It should be an awsome trip!!!! How loud was the super trap. Ours is definitely louder than stock, but the sound is deeper and definitely cool.
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post #10 of 14 (permalink) Old 06-15-2009, 06:24 PM Thread Starter
 
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Re: Supertrapp on my Revolt

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Originally Posted by klemdotter View Post
I am glad to hear that your car ran good with the super trap exhaust. It is hard to tell if it would run better with a longer mid pipe, but the seat of the pants dyno tells a lot. I guess you would have known if it fell flat. We are getting pumped about going to St. Anthony next week. We will have four revolts, two revolt xl's and one turbo RZR there. It should be an awsome trip!!!! How loud was the super trap. Ours is definitely louder than stock, but the sound is deeper and definitely cool.
At idle it is definately louder and deeper. And right off the line it is a little louder. But overall it isn't as annoying because it doesn't have that high pitched rattle/whine like the stock one. Personally I think it was less harsh on my ears due to that.

I do wish I had access to a dyno so as to do a real apples to apples comparison (before and after). But......alas.........no way. Interesting to see how the same exhaust with the longer runner will work that is on this forum.
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