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Author Topic: Alternative performance pistons & squish  (Read 2091 times)

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Offline PeWe

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Re: Alternative performance pistons & squish
« Reply #50 on: September 25, 2018, 11:54:08 am »
sorry captain i miss understood that , not the first time that has happened .
maybe a little bit too advanced in thought, need to retard a little...  8) there are various technical terms and ways of explaining
I did not follow that either. thanks to you we are more that know
CB750 K6-76 1005cc JMR Billet block.
CB750 K2-75 stock looking project started 2017

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
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Re: Alternative performance pistons & squish
« Reply #51 on: October 01, 2018, 07:14:48 am »
Regarding my C.B.R. motor......We retarded the ignition from stock setting and FOUND 5-HP when ONLY tuning for peak power at WFO
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
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Offline Ilja

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Re: Alternative performance pistons & squish
« Reply #52 on: October 06, 2018, 03:17:21 pm »
I tuned the ignition of my turbo cb750 with an ignitech module with MAP sensor (and GPZ stator+rotor), and just followed the torque curve of the dyno a bit. After peak torque I gradually increased another 2-3 degrees.
And the whole thing is boost retarded from 0-7 degrees at 0 to 15psi.

Works nicely and is also not expensive.  8)

 

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