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| 11-04-2004 06:25 AM 13 years ago | Post 1 |
| skwarwheels rrNovice Santa Clara, Ca | I just purchased a used Raptor with a TT50 engine and the TT HiPo muffler.While taking things apart to see how they work (hehe!) I noticed that the exhaust port on the muffler is a good 20% smaller than the exhaust port on the engine. Has anyone out there tried hogging this out... I mean port matching this exhaust to the engine? Can I expect 20% more power by doing so? Can I expect ANY more power by doing so. I noticed that some people are happy with the power from the stock motor, and others wouldn't have it any other way than to have a MP2 or a Hatori. I was just wondering if I end up with something kinda in the middle for free.
Let me know what you think...
Michael | ||
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| 11-04-2004 06:29 AM 13 years ago | Post 2 |
| zoro rrApprentice Cairns | Have a go Micheal and let me know what the results are.
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| 11-04-2004 08:27 AM 13 years ago | Post 3 |
| Gadgets rrApprentice South Africa | I normally smooth the sharp edge out.So that the air does not hit head on. I will post a pic when I take one
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| 11-04-2004 08:53 AM 13 years ago | Post 4 |
| steve69 rrApprentice Berkshire, UK. | I always port match the exhaust and it always make a small but noticable difference | ||
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| 11-04-2004 09:02 AM 13 years ago | Post 5 |
| frogbaiter rrApprentice Oxford UK | Is that why you took the end off your MP, Steve? | ||
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| 11-04-2004 10:59 AM 13 years ago | Post 6 |
| steve69 rrApprentice Berkshire, UK. | Well it must of been more powerfull cos it was LOUD!!!! Strangely thats the only pipe that didnt need porting to fit. | ||
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| 11-05-2004 05:49 AM 13 years ago | Post 7 |
| skwarwheels rrNovice Santa Clara, Ca | I just took a better look. There is a good 2 to 3 mm on each end of the opening. The problem is that the throat tapers on the outside too much to open it up on the inside properly. The best I can do is create a taper so that it doesn't have to hit it square on, like Gadgets said...Very sad...
Looks like there's a MP2 in my future.
Michael | ||
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| 11-05-2004 06:38 AM 13 years ago | Post 8 |
 TMoorerrMaster Cookeville, TN | IMHO, you are wasting your time.Unless you have a dyno and can measure the before and after you don't really know for sure if there is a gain. I've tried it and it isn't worth the effort. If there was an improvement companies like Hatori, KSJ and Funtech would port match their mufflers. Most of the contest pilots that I know don't bother. They need all the power they can get but don't look for it at the exhaust port. TM | ||
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| 11-07-2004 02:27 AM 13 years ago | •• Post 9 •• |
| skwarwheels rrNovice Santa Clara, Ca | TM, I agree with you on the waste of time. I thought that I had stumbled onto something free and easy...nope!Michael | ||
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