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Re: Most tilly's I ever ran........
Posted by 'DavyBoy' on 03 Nov 2008 @ 14:00


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DavyBoy
Joined: July 2005
Total Posts: 1
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A TT-ported [or better still D-ported] Hewland Arrow will leave a BT82 for dead - and not just at the top end either.

I had several Hewland Arrows back in the 1980s and had nothing but trouble with them. I appreciate that those I ran had every conceivable bit of tuning you could do done to them including the 5-porting, and were absolutely on the limit, but there was too much bottom end trouble [rods, big ends and cranks].

A safe starting point for a Hewland, or indeed any 100cc rotary valve motor running a Tillotson carb is one and a half on the high jet and one and a quarter on the low speed jet. The kart should start and run under these settings. If you need to lean in more to get running, then its likely you've a problem some place else - needle valve on carb, oil seals, plug/ignition etc...

Message Thread:

hewland arrow  by 'marcy'   (03 Nov 2008 @ 10:22)
Re: hewland arrow  by 'raceinstructor'   (03 Nov 2008 @ 10:30)
Re: hewland arrow  by 'marcy'   (03 Nov 2008 @ 10:35)
Re: hewland arrow  by 'raceinstructor'   (03 Nov 2008 @ 10:45)
Re: hewland arrow  by 'marcy'   (03 Nov 2008 @ 10:46)
tkm carb settings  by 'marcy'   (03 Nov 2008 @ 10:58)
Re: tkm carb settings  by 'itpro'   (03 Nov 2008 @ 12:12)
Re: tkm carb settings  by 'marcy'   (03 Nov 2008 @ 18:32)
Re: tkm carb settings  by 'marcy'   (03 Nov 2008 @ 19:58)
Re: hewland arrow  by 'SteveC'   (03 Nov 2008 @ 11:26)
Re: hewland arrow  by 'marcy'   (03 Nov 2008 @ 12:05)
Re: hewland arrow  by 'QuickOldTimer'   (03 Nov 2008 @ 12:28)
Most tilly's I ever ran........  by 'SteveC'   (03 Nov 2008 @ 12:35)
Re: Most tilly's I ever ran........  by 'itpro'   (03 Nov 2008 @ 13:45)
It'll be interesting to see how fast it goes!  by 'SteveC'   (03 Nov 2008 @ 13:51)
Re: Most tilly's I ever ran........  by 'DavyBoy'  << You are here!
I never had any trouble.  by 'SteveC'   (03 Nov 2008 @ 14:20)
Re: Most tilly's I ever ran........  by 'QuickOldTimer'   (03 Nov 2008 @ 14:27)
Re: Most tilly's I ever ran........  by 'itpro'   (03 Nov 2008 @ 16:30)
Re: Most tilly's I ever ran........  by 'RevvedUp'   (03 Nov 2008 @ 17:36)
Re: Most tilly's I ever ran........  by 'QuickOldTimer'   (03 Nov 2008 @ 17:46)
Re: hewland arrow  by 'marcy'   (03 Nov 2008 @ 19:42)
Re: hewland arrow  by 'DavyBoy'   (03 Nov 2008 @ 21:20)
Re: hewland arrow  by 'MickPritchard'   (03 Nov 2008 @ 21:55)
Re: hewland arrow  by 'marcy'   (03 Nov 2008 @ 23:00)
Re: hewland arrow  by 'itpro'   (04 Nov 2008 @ 1:50)
Re: hewland arrow  by 'marcy'   (04 Nov 2008 @ 8:51)
Re: hewland arrow  by 'MickPritchard'   (04 Nov 2008 @ 9:06)
Re: hewland arrow  by 'marcy'   (04 Nov 2008 @ 9:21)
Re: hewland arrow  by 'marcy'   (04 Nov 2008 @ 9:44)
OK Marcy... here's the situation  by 'DavyBoy'   (04 Nov 2008 @ 19:47)
Re: OK Marcy... here's the situation  by 'gyfto1'   (04 Nov 2008 @ 21:22)
Re: OK Marcy... here's the situation  by 'marcy'   (04 Nov 2008 @ 23:35)
Re: hewland arrow  by 'marcy'   (16 Nov 2008 @ 19:44)

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