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 Getting there!

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mark taylor



Number of posts : 25
Age : 51
Localisation : Oxford
Registration date : 2009-08-13

PostSubject: Getting there!   Fri Oct 21, 2011 9:15 am

First attempt at the exhaust! i feel it wont be the last Laughing




Getting there anyway!

Mark
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john bass

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Number of posts : 1736
Age : 88
Localisation : Bensberg, Germany
Registration date : 2006-12-06

PostSubject: Wow!   Fri Oct 21, 2011 11:13 pm

Wow!
Keep at it....
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mjpowell

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Number of posts : 1074
Localisation : Lincoln England
Registration date : 2006-12-09

PostSubject: Re: Getting there!   Fri Oct 21, 2011 11:27 pm

Mark your bike has great 'potenial' to 'hopefully' be on the Mallory grid in April 2012 'maybe'?

If not come and take some more great pic's!! Smile

Have the forks changed from the last time you posted?
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Edward Pickering

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Number of posts : 735
Age : 40
Localisation : Gloucester
Registration date : 2007-02-19

PostSubject: Re: Getting there!   Sun Oct 23, 2011 12:22 am

Hi Mark,


Well done on the exhaust, did you mig weld it out of interest?


Kind Regards



Eddie
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Derek

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Number of posts : 1065
Age : 56
Localisation : worcestershire
Registration date : 2007-06-15

PostSubject: Re: Getting there!   Mon Oct 24, 2011 7:24 am

Hi Mark
I love the look of your bike, the pipe looks a nice shape, I feel (yes john b "feel") the tail pipe is too small and too long, but I'm not sure I understand Mike silly comments!!, but more importantly the bike looks great.

I think you should drop the forks through the yokes, or shorten them.

Are you going to be ready for next season,? looks like your not far away,

dont forget plenty of time, dont forget to test before you turn up, and take your time, don't be rushed out before your ready.

best regards Derek
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mark taylor



Number of posts : 25
Age : 51
Localisation : Oxford
Registration date : 2009-08-13

PostSubject: Re: Getting there!   Tue Oct 25, 2011 12:13 am


Hi all,

Well the plan Mike was to have the bike ready this year but never mind! But I do hope to have it ready and prepaired for Mallory. The forks are the same just a new front wheel WM1 18".

Edward the exhaust is mig welded 'not very well but it was a practice run'

Derek - The forks will be reduced by 10cm to fit correctly. Ready for next season! yep you bet can't wait. Tail pipe/stinger I've gone for a 26mm outside diameter which is about 24mm internal would this be too small? I have got 28mm dia with a internal of 25mm would this be better any thoughts!

JB thanks for your comment.

Regards

Mark



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alan
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Number of posts : 450
Age : 63
Localisation : Mexborough
Registration date : 2006-12-01

PostSubject: Re: Getting there!   Tue Oct 25, 2011 1:09 am

Your tailpipe internal diameter is just fine Mark! more important to getting out is the need for a silencer!! Twisted Evil Make absolutely sure the internal diameter of the silencer is larger than the tailpipe, otherwise you will get some overheating. Also use a Soft Alloy body as it tends to damp the sound down a lot better than steel.
There is a place in Lincoln that does sound wadding at a reasonable cost and I used it to good effect when I got into sound engineer problems! look via google on the internet for this.
Looking good Mark!! hope all goes well and you are running sweet at Mallory.
Cheers,
Alan
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Derek

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Number of posts : 1065
Age : 56
Localisation : worcestershire
Registration date : 2007-06-15

PostSubject: Re: Getting there!   Wed Oct 26, 2011 6:56 am

Al's the man that know's, I would like to add, I made the same mistake on this point, giving me some expensive results, my pipe was 25mm O/D with a 1.4mm wall making it 22.2mm I/D "too small", Al has been helping me on this, he has done lots of experimenting on the dyno.

is yours a 175cc ? which it looks, Tail pipe should be a "minimum" of 25mm I/D, so 28mm od pipe is ok as long as the wall is not bigger than 1.5mm( i think it may be 1.6 wall or 0.062" thou?).

regds Derek
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Edward Pickering

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Number of posts : 735
Age : 40
Localisation : Gloucester
Registration date : 2007-02-19

PostSubject: Re: Getting there!   Wed Oct 26, 2011 8:12 am

Hi Mark,

Thanks for that, i might have an attempt at making my exhaust again at the weekend.


Regards


Eddie
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Derek

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Number of posts : 1065
Age : 56
Localisation : worcestershire
Registration date : 2007-06-15

PostSubject: Re: Getting there!   Wed Oct 26, 2011 8:51 am

Hi ED you said thanks for that ! what's been going on behind the scene you going to share that with us ?i'm interested to understand what others are doing or planning.

regards Derek
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Edward Pickering

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Number of posts : 735
Age : 40
Localisation : Gloucester
Registration date : 2007-02-19

PostSubject: Re: Getting there!   Wed Oct 26, 2011 8:55 am

Hi Derek,


I just wanted to know if i needed to get another welder, besides i have the same rollers as mark and now have other metal to attempt an exhaust design.


Eddie
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tonydavis

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Number of posts : 156
Age : 58
Localisation : london - ex East midlands
Registration date : 2006-12-01

PostSubject: Re: Getting there!   Wed Oct 26, 2011 10:22 pm

Looking really tidy Mark, bantams always look great with no bodywork on you can see the ideas and design. recognise that subframe style Very Happy did you use original then chop half of it off, looks great.

Keep up the good work mate

Tony
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