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Post by looey on Apr 13, 2013 22:25:18 GMT 1
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Post by bryan on Apr 13, 2013 23:02:01 GMT 1
Done similar thing with my LC plus removed the snorkel, up to 250 on main and lifted needle 1 clip. Made a big difference but not get dyno results of difference but it lifted front wheel in second which it wouldn't b4. Some people are worrying about a few BHP in the top end which I doubt you would notice on the road and I would rather have better mid range as its used all the time.
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Post by Deleted on Apr 13, 2013 23:10:15 GMT 1
As I said rode both bikes today and you can really feel the midrange in mine, though both bikes lifted the front wheel in second gear. Andys bike wants to rev and rev some more, talked with Muttsnuts and we could probably get more top end on mine by changing the reeds, and putting the reed stops to 10mm, but and it's a big but, could lose out on some mid range, so am going to leave it alone now as its so much fun to ride
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Post by tsa on Apr 14, 2013 0:21:27 GMT 1
The PWK's make the difference you have in the midrange Id say more than anything else. Whats the full list of mods on your bike Mick?
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Post by Deleted on Apr 14, 2013 3:53:05 GMT 1
a good read men, well done.
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Post by 1966baz on Apr 14, 2013 7:34:07 GMT 1
I've got a marsbar 31k hybrid with allspeeds and 31k carbs and it goes like stink - really smooth all the way through the rev range. I also have an f2 ypvs which I recently put a set of Kenny's pipes on and it is an animal now at 8000rpm prob making abit more power than the Hybrid. I LOVE both especially the sound of Kenny's pipes coming on song. Cheers Nick.
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Post by flames on Apr 14, 2013 8:16:18 GMT 1
If you are making 53HP with the lid off then surely you just need to drill some big holes in the lid After seeing 53 then why would you want to go back down to 49 ive got holes drilled in mine.it came like that tho,so cant say what kind of differance it makes.i remember reading somewhere that you need to drill so many holes of a certain size.if you went too mad and drill too many the power gained started to tail off.but i would guess the amount and size of holes would be dependant on pipes and tune?
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Post by muttsnuts on Apr 14, 2013 10:44:48 GMT 1
To help put things in perspective as while this is a great read and some fun, the 2 bikes in reality are quiet different spec wise
Micks:
PWK28 carbs fitted 6mm Reed block spacers Carbon Reed petals Small can Allspeeds (Gibsons but are new, so I think the design has changed a little) 2mm BTDC (was set at 1.7mm BTDC !) Airbox lid off (but foam filter in place)
Andy's:
4L001 carbs Steel Reeds TSA pipes 1.9MM BTDC Airbox lid on (snorkel removed)
On Micks we couldn't get it to keep pikcing up after 8k rev's, a very odd thing, we suspect the reeds and possibly the stops might need tweaking and maybe the exhausts, although we did taker the baffles out and that made zero difference
On Andy's, removing the airbox top (foam filter still in place) the bike lept to 53bhp, but was running slightly weak then at mid range and high rev's, if we had jetted the bike right then its very possible that a few more BHP would have been gained in these 2 areas, however, Andy wanted to keep his bike as near standard as possible, hence why we fitted the airbox lid back and didn't alter the jetting - it wasn't/isn't my place to make decisions for other peoples bikes
The true indicator of how the various parts compare/help the bike is when I get a set of Kenny's pipes on mine and then get it jetted up correctly, current view is that with the TSA's and PWK's on my bike that 55+bhp is easily achievable and also mid-range will be up another few BHP
I am also looking at making an airbox mod, drilling the lid is fine, but leaving it off is also fine so long as you secure the foam filter, but that's not the whole story, but I won't go into that at the moment.
Yu have to remember that alot of mods for these bikes came from the racing scene, so standard airboxes for proddy racers was a requirement, so hence the drilling etc, I have nbo such restriction, but I don;t want pod filters on, so I am looking at some alternatives, if they work out then that will be great
A true test of course is to run the bike with no airbox, that then tells us the restriction/loss due to airbox restriction, again, that's another story.........
either way, the tests yesterday proved several things apart from Mick and Andy should get a room as they argue like a married couple ;D ;D is that depending upon what you fit and in what combination, you can improve your LC very easily with really noticeable results.
Personally knowing what I know now, a 350LC with Kennys pipes on and some PWK's is going to give you a very fast and ace LC to ride with loads of mid range punch, fitting a combination of either of these when setup correctly is going to make massive improvements over stock
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Post by buckshot on Apr 14, 2013 12:25:49 GMT 1
Great read lads, most enjoyable. Now who's going to be the quickest at Darley and who's taking the bets. ;D
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Post by kpmc on Apr 14, 2013 19:42:38 GMT 1
great report.
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Post by bryan on Apr 14, 2013 21:29:37 GMT 1
To help put things in perspective as while this is a great read and some fun, the 2 bikes in reality are quiet different spec wise Micks: PWK28 carbs fitted 6mm Reed block spacers Carbon Reed petals Small can Allspeeds (Gibsons but are new, so I think the design has changed a little) 2mm BTDC (was set at 1.7mm BTDC !) Airbox lid off (but foam filter in place) Andy's: 4L001 carbs Steel Reeds TSA pipes 1.9MM BTDC Airbox lid on (snorkel removed) On Micks we couldn't get it to keep pikcing up after 8k rev's, a very odd thing, we suspect the reeds and possibly the stops might need tweaking and maybe the exhausts, although we did taker the baffles out and that made zero difference On Andy's, removing the airbox top (foam filter still in place) the bike lept to 53bhp, but was running slightly weak then at mid range and high rev's, if we had jetted the bike right then its very possible that a few more BHP would have been gained in these 2 areas, however, Andy wanted to keep his bike as near standard as possible, hence why we fitted the airbox lid back and didn't alter the jetting - it wasn't/isn't my place to make decisions for other peoples bikes The true indicator of how the various parts compare/help the bike is when I get a set of Kenny's pipes on mine and then get it jetted up correctly, current view is that with the TSA's and PWK's on my bike that 55+bhp is easily achievable and also mid-range will be up another few BHP I am also looking at making an airbox mod, drilling the lid is fine, but leaving it off is also fine so long as you secure the foam filter, but that's not the whole story, but I won't go into that at the moment. Yu have to remember that alot of mods for these bikes came from the racing scene, so standard airboxes for proddy racers was a requirement, so hence the drilling etc, I have nbo such restriction, but I don;t want pod filters on, so I am looking at some alternatives, if they work out then that will be great A true test of course is to run the bike with no airbox, that then tells us the restriction/loss due to airbox restriction, again, that's another story......... either way, the tests yesterday proved several things apart from Mick and Andy should get a room as they argue like a married couple ;D ;D is that depending upon what you fit and in what combination, you can improve your LC very easily with really noticeable results. Personally knowing what I know now, a 350LC with Kennys pipes on and some PWK's is going to give you a very fast and ace LC to ride with loads of mid range punch, fitting a combination of either of these when setup correctly is going to make massive improvements over stock And the key word is set up correctly, once done and with the right bits fitted they are more enjoyable to ride with no flat spots. Im surprised that while you were there you didnt try different ignition timming, buy the looks of it neither have porting or higher compression. The BHP figures are good if they are standard porting, I would have tryed them at something like 1.9, 1,8 and 1.7 mm BTDC and see if it was any better. Were there any other bikes there for comparison.
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Post by butchers on Apr 14, 2013 21:51:57 GMT 1
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Post by muttsnuts on Apr 15, 2013 10:19:03 GMT 1
the winner on outright power was Andy's by a country mile, the mid range battle was much closer, with Mick's just nicking it, but by only about 1bhp after we had finished with Andy's, its possible we could have got Andy's to do even more, but that would have required the airbox lid off and rejetting etc and he didn't want that graph below shows Andy's at peak power (airbox lid off) (BLUE), Andy's with airbox lid on (RED) and Micks (GREEN) As you can see having the airbox lid off in Andy's raised the mid range (cleaned it up) and lifted the peak power, with a little bit of time and effort the curve and power could have been made even better with the airbox lid off (or at least better airflow getting into the carbs anyway)
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Post by Deleted on Apr 15, 2013 11:09:01 GMT 1
Still managed to beat him yesterday when we went for a ride but that could be rider ability ;D ;D ;D
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Post by Norbo on Apr 15, 2013 17:31:43 GMT 1
and the winer at darley will be . ME you'll bothe be choking on my smoke like 2 old men on a sunday ride
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Post by Deleted on Apr 15, 2013 18:32:46 GMT 1
You do know it's parade laps don't you Norbs But them again you don't do many miles on The road
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Post by Norbo on Apr 16, 2013 7:22:47 GMT 1
Ill be starting at the very very back as allways so i get to ride up to the front . I know you cant realy race i was just messing about . But you'll still be choking on my smoke with in a lap. LOL bring the crappy cam for my bike mate wont you .
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Post by Deleted on Apr 16, 2013 12:09:08 GMT 1
you mean the crappy camera that you sent back and got your money back on? ok mate don't forget your memory card ;D
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