daniel mason
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| posted on 11/3/09 at 07:42 PM |
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dynojet kits
would a dynojet kit be a good upgrade for a 2001 R1 BEC? if so how expensive are they and would it be likely to inrease BHP?
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mistergrumpy
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| posted on 11/3/09 at 07:55 PM |
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They're used more specifically in BECs to sort out the fuelling problem that's associated with using a different exhaust and airbox/filter
than comes with the standard bike. So if you have any flat spots or misfires then yes it would probably give you more BHP but otherwise I
wouldn't bother, they take a lot of fettling to get right unless you go to a proper rolling road.
Cost incidentally is around £70-£90 if I remember.
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BenB
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| posted on 11/3/09 at 07:59 PM |
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Whether a dynojet kit will improve you car depends very much on what set-up you're running at the moment. Especially if you're running a
homebrew inlet manifold / plenum you may have happened upon the perfect set-up as it is. Certainly when I took my homebrew carbon fibre inleted car
along to TTS they said it was almost spot on!!
IE bung a lamda sensor in and see what's actually happening and then see if you need to make changes....
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Andy B
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| posted on 11/3/09 at 09:56 PM |
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Given how susceptible high revving bke engines are to changes in pipe and induction and bearing in mind most of these are changed in a BEC install I
would always recommend a jet kit and dyno session to sort fuelling. Our experience here is that most bike engines run lean until jetted when installed
in cars even though they make reasonable horsepower. A session on the rollers will normally result in better BHP, more torque and peace of mind that
the factory cast pistons are not slowly being spark eroded.
regards
Andy
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matt.c
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| posted on 11/3/09 at 10:44 PM |
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Andy do you have a rolling road?
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maximill666
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| posted on 11/3/09 at 10:48 PM |
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As above ^^ I completely agree with Andy, IMO a dynojet kit is essential for a carbed BEC with a sausage filter & straight through exhaust can.
Get a BEC specific one from TTS, to get the correct size main jets (the ones supplied in a normal R1 bike dynojet kit are too small for your setup)
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Andy B
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| posted on 12/3/09 at 06:40 AM |
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Afraid we dont have dyno here yet although one is planned. At the moment we use pdq
regards
Andy
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matt.c
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| posted on 13/3/09 at 07:01 PM |
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quote:
Originally posted by Andy B
Afraid we dont have dyno here yet although one is planned. At the moment we use pdq
regards
Andy
pdq? who is this?
Are you at snetterton on sunday? 
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