Search found 298 matches

by Avantone
Wed Sep 01, 2021 9:04 pm
Forum: General Scooter Chat
Topic: IOW Engine fails
Replies: 10
Views: 1916

Re: IOW Engine fails

Just to muddy the water; my local garage has had its pumps marked up as E10 for a couple of weeks. I asked them when they actually changed over and they said they hadn't and were still pumping E5. They (Shell) have a contractor going round changing the pump stickers ahead of the actual changeover. T...
by Avantone
Thu Aug 05, 2021 7:22 pm
Forum: Tech FAQ
Topic: Muffler impact on power?
Replies: 1
Views: 1160

Muffler impact on power?

Love an answer on this based on real world testing as opposed to theory or opinion :D

So, if you replace a straight tailpipe with a perforated muffler of the same length and internal diameter, what if any impact is there on power/torque/characteristics?
by Avantone
Thu Jul 16, 2020 10:17 pm
Forum: General Scooter Chat
Topic: Eric Cope smashes 127mph at Elvington on full-bodied Taylor Tuned Lambretta 250cc
Replies: 39
Views: 6795

Re: Eric Cope smashes 127mph at Elvington on full-bodied Taylor Tuned Lambretta 250cc

I’m sure Darrell knows +\- 1 mph! [emoji6] He does, I'm just stimulating debate... :lol: :lol: Well if we’re talking about traditional group 6 with vega legshields, I don’t think there’d be much difference (could even be slower) In a good streamliner, I’d guess 150+ Dunno - interesting stuff [emoji...
by Avantone
Thu Jul 16, 2020 6:42 pm
Forum: General Scooter Chat
Topic: Eric Cope smashes 127mph at Elvington on full-bodied Taylor Tuned Lambretta 250cc
Replies: 39
Views: 6795

Re: Eric Cope smashes 127mph at Elvington on full-bodied Taylor Tuned Lambretta 250cc

Here is a video of the man in action and a bit of the scooter specification too: https://youtu.be/jYw-Df75Olg :ugeek: Looks like fun, wonder what that engine would do in a cut/raked frame with slim/low leggies?! :shock: I’m sure Darrell knows +\- 1 mph! [emoji6] He does, I'm just stimulating debate...
by Avantone
Thu Jul 16, 2020 2:01 pm
Forum: General Scooter Chat
Topic: Eric Cope smashes 127mph at Elvington on full-bodied Taylor Tuned Lambretta 250cc
Replies: 39
Views: 6795

Re: Eric Cope smashes 127mph at Elvington on full-bodied Taylor Tuned Lambretta 250cc

Here is a video of the man in action and a bit of the scooter specification too: https://youtu.be/jYw-Df75Olg :ugeek: Looks like fun, wonder what that engine would do in a cut/raked frame with slim/low leggies?! :shock: I’m sure Darrell knows +\- 1 mph! [emoji6] Sent from my iPhone using Tapatalk
by Avantone
Wed Jul 08, 2020 11:52 am
Forum: General Scooter Chat
Topic: Eric Cope smashes 127mph at Elvington on full-bodied Taylor Tuned Lambretta 250cc
Replies: 39
Views: 6795

Re: Eric Cope smashes 127mph at Elvington on full-bodied Taylor Tuned Lambretta 250cc

https://www.scooterotica.org/forum/viewtopic.php?f=7&t=29198&hilit=dynabike That was a great discussion. I love that you quietly gather masses of (real world) data to calibrate the software, use the software to indicate the required engine characteristics, develop the engine, and then knock it out ...
by Avantone
Tue Jul 07, 2020 12:55 pm
Forum: General Scooter Chat
Topic: Eric Cope smashes 127mph at Elvington on full-bodied Taylor Tuned Lambretta 250cc
Replies: 39
Views: 6795

Re: Eric Cope smashes 127mph at Elvington on full-bodied Taylor Tuned Lambretta 250cc

drunkmunkey6969 wrote:standard casings too...
Still astounded he was on a 4-speed box - do you know gear he was on for that final run?


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by Avantone
Tue Jun 30, 2020 12:51 pm
Forum: Lambretta Tech
Topic: Main bearing alignment?
Replies: 5
Views: 1329

Re: Main bearing alignment?

By flex, I meant there would be static tension across the crank due to bearing misalignment, rather than dynamic flex at RPM. This would sap power and increase wear on the mains. Regarding flex at rpm, there is a very old 2-bearing in-line 4 engine that flexes like nobodies business. When people tri...
by Avantone
Tue Jun 30, 2020 11:25 am
Forum: Lambretta Tech
Topic: Main bearing alignment?
Replies: 5
Views: 1329

Re: Main bearing alignment?

I've never had to check, but I understand that if alignment was likely to be out, due to extensive welding, then axial alignment would need it. Unless I pulled in a favour with somebody that works in a machine shop with XYZ inspection facilities, I suppose the crankcase/magneto flange assembly coul...
by Avantone
Mon Jun 29, 2020 8:53 pm
Forum: Lambretta Tech
Topic: Main bearing alignment?
Replies: 5
Views: 1329

Main bearing alignment?

Anyone check that their mains are truly aligned before doing a final fit on the crank?
If you do, how? Bar with bearing ID?
Thanks


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