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one arm bandit
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« Reply #450 on: April 30, 2012, 03:45:20 PM » |
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good to see you back on it dobber, i made a cut and shut exhaust they look s**te all welded here and there so i got 5meters of black exaust wrap for a tenner off ebay its tidyed things up perfect  |
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Manky Monkey
Administrator
Hero Member
Karma: 264
Posts: 55102
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« Reply #451 on: April 30, 2012, 03:52:09 PM » |
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Similar shape to mine Dobby. Reliants are never gonna be high performance motors -the joints in the system might cause a minor gasflow disruption, but I doubt it's gonna make a lot of difference really.
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On the last freedom moped out of Nowhere City.
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dobber
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« Reply #452 on: April 30, 2012, 11:30:32 PM » |
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got exhaust toward back end of trike and surprised how quite it is. got a 1200 bandit silencer mounted ready to mate up to it but could now be overkill.
hi oab, hoping to weld n fettle it then matt black it. in the distant future get it copied, patterned in stainless.
think your right m/m. never gonna be thraping it around on full knacker.
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no rush fella, take all the time you need,
can i have it in 20 Min's?
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digger06
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« Reply #453 on: May 01, 2012, 05:17:21 AM » |
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i ran just a pipe last year, wasnt that noisy, i have a s/s big bore one i made to an old norton dunstal thingy, its louder now but its still ok, theres more noise in the engine than the exhaust  |
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one arm bandit
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« Reply #454 on: May 01, 2012, 09:01:53 AM » |
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prob a daft ? but is it legal to run with no silencer, i see most of the choper type things just have a straight pipe from engine? my exhaust is only 4ftish with race can gifted off my brother its by no means loud but does sound nice
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dobber
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« Reply #455 on: May 01, 2012, 08:17:48 PM » |
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think it only goes by decibles. not sure on that really
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no rush fella, take all the time you need,
can i have it in 20 Min's?
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zakboy
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« Reply #456 on: May 01, 2012, 08:55:53 PM » |
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99dbA for msva
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Give me the strength to except the things in life i can not change
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ROD
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« Reply #457 on: May 02, 2012, 10:19:48 AM » |
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measured at an angle,about 45 degrees,about 18" away from end.,and engine revving about half throttle,as I recall. The can hasnt got to be stamped as correct type ,but mustnt have summat like "for race use only on it"!
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« Last Edit: May 02, 2012, 10:21:56 AM by ROD »
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triker_Chewie
Hero Member
Karma: 42
Posts: 1712
west aussie dreamer
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« Reply #458 on: May 02, 2012, 01:23:25 PM » |
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so could you bodge your throttle so it revs lower at max?
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I hate when people compare Lemmy with God, i know he is great but he is not gonna be Lemmy, ever If your Dad hasnt got a beard, you've got two Mums there's no point it lookin' pretty if we can't drive it.
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digger06
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« Reply #459 on: May 02, 2012, 04:34:41 PM » |
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99db is louder than you think, most cars are 82 or 84 ish, its a LOT louder than that, its a logarithmic scale, not linear...
if your worried just stick a baffle in it 4 the test
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ROD
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« Reply #460 on: May 02, 2012, 05:30:48 PM » |
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I was wrong there Chewie..I think it has to be opened to 3000 rpm for the test. I just guessed mine,as rev counter wasnt working at the time.
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BikerGran
Hero Member
Karma: 94
Posts: 10604
Gran Turismo
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« Reply #461 on: May 02, 2012, 07:35:07 PM » |
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So how do they gauge the revs if the vehicle doesn't have a rev counter?
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You don't stop havin fun because you get old - you get old if you stop havin fun!
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one arm bandit
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« Reply #462 on: May 02, 2012, 07:40:26 PM » |
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hold on to the ht lead with a wet hand and count the number of screams per minuite  |
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BikerGran
Hero Member
Karma: 94
Posts: 10604
Gran Turismo
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« Reply #463 on: May 02, 2012, 07:55:36 PM » |
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You don't stop havin fun because you get old - you get old if you stop havin fun!
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Manky Monkey
Administrator
Hero Member
Karma: 264
Posts: 55102
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« Reply #464 on: May 02, 2012, 09:46:44 PM » |
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For my truck SVA, it had to be 3/4 throttle. If you have a recognised source of info on the maximum revs of your engine, (a letter from an owners club perhaps or even the Haynes manual), they'll accept that & work out the figure from that. I had a Haynes manual ready when we went for the test, but I think they must've had the Rover V8's figures on their computer system or they took Kev's word for it, as they didn't ask.
They can clip a meter to an HT lead to read the revs if you don't have a gauge.
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On the last freedom moped out of Nowhere City.
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