Today @ SPORTAX Racing

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ian
Posts: 21
Joined: Tue Aug 07, 2018 7:14 am
Location: Market Harborough

Re: Today @ SPORTAX Racing

Post by ian » Fri Feb 28, 2020 8:25 am

Hi Gary, what does the 405cc conversion yeald in terms of bhp and torque on a standard mt350 and is the head/ valve size the next most restrictive part, kind regards,Ian.
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green_machine
Posts: 21
Joined: Sun Nov 04, 2018 8:41 am
Location: Coventry

Re: Today @ SPORTAX Racing

Post by green_machine » Fri Feb 28, 2020 9:19 pm

Minter wrote:
Thu Feb 27, 2020 5:17 pm
Today we see 'Project Scruffy' aka Armstrong MT640 in the Workshop for some finishing off jobs...

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Just the kind of post I like... :D

Stuart
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MT640e 'Scruffy'

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Minter
Posts: 5099
Joined: Sun May 30, 2010 7:42 pm
Location: Burlington , Shropshire

Re: Today @ SPORTAX Racing

Post by Minter » Sat Feb 29, 2020 2:31 pm

ian wrote:
Fri Feb 28, 2020 8:25 am
Hi Gary, what does the 405cc conversion yeald in terms of bhp and torque on a standard mt350 and is the head/ valve size the next most restrictive part, kind regards,Ian.
Hi Ian, a 405 kit with carb and silencer takes you from 18 rear wheel horse power to 37 rear wheel horse power.. we have got bigger valves for the 348 head but have not explored that route yet..
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SPORTAX Racing ROTAX
http://www.sportaxracing.co.uk
MTRC Shopkeeper
http://sportaxracing.co.uk/product-category/mtrc-shop/
Manuals & Technical Publications on above MTRC shop link

ian
Posts: 21
Joined: Tue Aug 07, 2018 7:14 am
Location: Market Harborough

Re: Today @ SPORTAX Racing

Post by ian » Sat Feb 29, 2020 11:57 pm

More than expected :shock: still on the rack trying to stretch my legs, thinking of using shock springs from a Catapillar D8 as they're weaker than the standard ones. :lol: ian.
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Minter
Posts: 5099
Joined: Sun May 30, 2010 7:42 pm
Location: Burlington , Shropshire

Re: Today @ SPORTAX Racing

Post by Minter » Sat Mar 28, 2020 9:35 am

Business as usual here at Spotax HQ.

Yesterdays Tidy Friday had a different start thanks to the fly tippers down our lane.. Wish I'd have caught them in the act.

On a happier note the workshop is squeaky clean ready for finishing off next week an Aprilia 405 6 speed on the left. A 504mil in the centre and a 348 to 405 conversion on the right..

Image

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0 x
SPORTAX Racing ROTAX
http://www.sportaxracing.co.uk
MTRC Shopkeeper
http://sportaxracing.co.uk/product-category/mtrc-shop/
Manuals & Technical Publications on above MTRC shop link

Wirralman
Posts: 5743
Joined: Fri Jan 16, 2009 9:45 am
Location: Wirral, Merseyside

Re: Today @ SPORTAX Racing

Post by Wirralman » Sat Mar 28, 2020 11:45 am

Sadly fly tippers are everywhere, I often go for walks locally and pick litter, I take with me plastic sacks . I've found 200+ sacks fly tipped by now defunct 'charity' organisations who ask people for old clothes that they will forward to the needy. In fact , they sell the good stuff then dump the rest. Their accounts show that directors were paid, then staff, but sales only just covers costs. Directors in two companies were man and wife, drawing £80,000 per annum. Arrrgghhh

Your workshop meanwhile looks spotless as ever. Great that you are keeping these old engines going and enhancing them.

Are you planning any biofuel conversions ? Somehow an MT running on methane just wouldn't smell right :o
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