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Archangel007
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PostPosted: Sat Nov 10, 2007 4:40 pm 
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Hey Doc,

Did you notice an improvement in performance using the bum-dyno after you put them on?

And, did you have to retune the SU's as they would have leaned out a bit I thought?

Cheers,
Tricky

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drmini in aust
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PostPosted: Sat Nov 10, 2007 4:51 pm 
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Archangel007 wrote:
Hey Doc,

Did you notice an improvement in performance using the bum-dyno after you put them on?

And, did you have to retune the SU's as they would have leaned out a bit I thought?

Cheers,
Tricky

When I fitted Unifilter foam to my 45 Dellorto (1360 motor) instead of the Finer Filter one, I had to go up 2 main jet sizes. A/F is around 12.5 at full power.
Definitely got more power, it went from 75.4 to 86.6HP ATW with this and a cam change (RE13 to RE282).

With the twin HS4s on the 1293, I put the Unifilters in to start with. A/F ratio is a straight line at 13.0 with #6 needles.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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Archangel007
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PostPosted: Sat Nov 10, 2007 6:24 pm 
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Shite :shock:

That's not an insignificant increase Doc!

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drmini in aust
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PostPosted: Sat Nov 10, 2007 6:34 pm 
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Oh yes I went from an RC40 to 2" system as well, forgot about that. it all adds up... :wink:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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sgc
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PostPosted: Sat Nov 10, 2007 6:36 pm 
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Archangel007 wrote:
Shite :shock:

That's not an insignificant increase Doc!


I'd guess the cam change had a large chunk of that, but even so, anything over 3HP or so you can feel thru the bum dyno, so that's significant :D

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Archangel007
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PostPosted: Sat Nov 10, 2007 8:46 pm 
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Agree SGC!

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