CJS Customer Projects

748R 133bhp Chrisiball

A month ago I dropped my track 748R off with Chris Steedman  of CJS Racing in the south west with an aim for a bit more grunt . Chris gave me a few options and i decided to go with a CJS superset up , pistol 853 kit and a full cylinder head prep

Well after a hectic few days trying to find someone to remap my Ultimap chip after the 853 work was finished, things were not looking good as Moto Rapidos dyno was out of action.

Chris said a PC3 would be the way to go then his dyno man Tim Blakemore would be able to map it today!! Wednesday afternoon and Dynojet have no PC3's for ducati. After a urgent ring round by chris and a post on the sporting club one was sourced from Phil H! cant thank the man enough!!

So to the dyno, Tim gave the bike a steady warm up on the dyno to bed in the new pistons and cylinders, and then set about custom mapping the PC3.
It took almost 3 hours to map but the end results were awesome.

133Bhp at the tyre! I contacted Chris after being impressed with Fastphils 998 website thread. Chris is a genius very meticulous and talked me thru everything he had done to the engine! He also mentioned that he thought the 45mm-50mm exhaust system may hinder the final figures and said this morning that he hoped for 130bhp but thought it might be nearer 125-128.

The work that has been done
Pistal pistons
Cylinders machined and replated to 94mm
Squish set
Stage 2 porting / 3 angle valve job/polished and radiusused stock valves/
Cams Dialed
Heads shimmed to spec
throttle bodies machined to remove the restriction.
I cannot recommend him enough!

Can't wait to get it on track in a weeks time!
Thanks Chris!

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The combustion chamber was modified for improved air-flow.

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The ports and valve seats now have a new shape.

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Installed 853cc kit from Pistal.

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Testimonial dated May 2008 by chrisiball

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