changing timing with a pc3r? - Honda RC51 Forum : RC51 Motorcycle Forums
 
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post #1 of 4 (permalink) Old 12-01-2014, 09:10 AM Thread Starter
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changing timing with a pc3r?

ive got a pc3 on my track bike already although i have a pc3r sat in the workshop doing nothing.

from what i understand the pc3r can change the timing. with this in mind ive seen a few people advance the timing 3-4 degrees for a touch more performance?

is it worth doing and getting it remapped?

anyone tried this before?
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post #2 of 4 (permalink) Old 12-01-2014, 10:53 AM
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I think it has been shown there is nothing to be gained with an SP
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post #3 of 4 (permalink) Old 12-01-2014, 04:33 PM
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Advantages of timing changes start to come into their own when you have internal engine mods, ported heads higher compression ratio, cams etc; or if you are running different fuel.

The more air/fuel you get into the engine, the greater advance needed to cleanly burn it all. More advance equals more power up to the point of det, so timing adjustment is critical for squeezing that last ounce of power out.

You should be able to make gains on a stock motor with timing and fuel adjustments, because you can tune bike specific and remove production conservatism, just beware; get it wrong and it can get expensive in spectacular fashion.

Before doing any timing adjustments get yourself some really good det cans, you can't map timing by guess work, you have to know what's going on in the engine. I use the Pro Tuner kit from Knock Box, it has dual sensors (ideal for V twin engines), and can be fine tuned to filter out normal engine noises.
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post #4 of 4 (permalink) Old 12-01-2014, 07:51 PM Thread Starter
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it already has high comp pistons and worked on heads too. ive just been giving the chassis bearings a refresh so ill get it on a dyno soon once shes back on her feet.
ill let the dyno guy have a go
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