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YZF 750R MM42 RACING TEAM

782 Views 5 Replies 3 Participants Last post by  jbur13, 
A
This is my racing bike setup:
SPARKER TCIP4 12.500rpm
INGNITIOS COILS
Standard bdst38 carbs with a few tricks
15/47
Electrical installation done by me
Rebuilt engine with new pistons and rings
Larger water cooler and also oil cooler installed (no more heating problems)
124.7HP

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Hi Angioletti, great effort in terms of hp gain, I note the ignitec change and also new pistons etc. What do you think gave biggest bang for buck as changing out pistons generally doesn't drive massive gains hp unless you are looking at major increases in compression and the YZF already ran 11.5 : 1 static compression. Largely driven by the Ignitec you think?
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Hi Angioletti,
Nice bike! 125HP is really good for a production based motor. I've built a few of these motors and 125 is pretty much everything you can. Most supersport bikes came in around 115-118 with cam timing and fully balanced motor. What numbers are you running on cam timing? and what country are you racing? Best of luck to you this season-
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minstar said:
Hi Angioletti, great effort in terms of hp gain, I note the ignitec change and also new pistons etc. What do you think gave biggest bang for buck as changing out pistons generally doesn't drive massive gains hp unless you are looking at major increases in compression and the YZF already ran 11.5 : 1 static compression. Largely driven by the Ignitec you think?
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minstar said:
Hi Angioletti, great effort in terms of hp gain, I note the ignitec change and also new pistons etc. What do you think gave biggest bang for buck as changing out pistons generally doesn't drive massive gains hp unless you are looking at major increases in compression and the YZF already ran 11.5 : 1 static compression. Largely driven by the Ignitec you think?
Click to expand...
The greatest power gain is thanks to porting the cylinder head and the ignitech ignition
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jbur13 said:
Hi Angioletti,
Nice bike! 125HP is really good for a production based motor. I've built a few of these motors and 125 is pretty much everything you can. Most supersport bikes came in around 115-118 with cam timing and fully balanced motor. What numbers are you running on cam timing? and what country are you racing? Best of luck to you this season-
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Thank you I have been guided by this fzr 750 0w01 manual, the rest is from personal experience and I am from Spain
I know it's hard to find this manual, you're welcome ;););););)
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ANGIOLETTI said:
Thank you I have been guided by this fzr 750 0w01 manual, the rest is from personal experience and I am from Spain
I know it's hard to find this manual, you're welcome ;););););)
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Thank you for the manual! It confirms my cam specs for the 750. I have an fzr750rt that will get some of this tuning :) The YZF has a 1040-6sp with FCR's. I just need to stick the motor back in. Best of luck this season!
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