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16 Jan 2020
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Forum for Saturno

TOPIC: Gilardoni Big Bore Kit & Camshafts

Gilardoni Big Bore Kit & Camshafts 3 years 5 months ago #5739

  • Aus.GT
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Just wondering who has had experience with fitting this kit to their Saturno and what the outcome was.
100mm piston and barrel kit P/N GL-01-1000
Camshafts P/N GL-01-2000

Cheers, Murray

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Re: Gilardoni Big Bore Kit & Camshafts 3 years 5 months ago #5740

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Ok then, seems no one has fitted these.
What mods have been done to your bikes regards performance?

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Re: Gilardoni Big Bore Kit & Camshafts 3 years 5 months ago #5741

  • Kano Nordi
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I have a Frigioli 604 big bore kit that was fitted along with TTS flowed head and Keihin flat slide carbs to 72degrees race hillclimb Nordwest, you can find write ups about it in the old GeN magazine. these are now not needed as the project went "tits up"
Regards
John

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Re: Gilardoni Big Bore Kit & Camshafts 3 years 5 months ago #5743

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Thanks John,
Seems I'll have some reading to do. Was unaware of these articles.
I take it you never got to trying your big bore out then?

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Re: Gilardoni Big Bore Kit & Camshafts 3 years 5 months ago #5744

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I did not get the GFR rolling chassis I bought, another story posted on here, so the big bore kit was not used by me, my Saturno is fitted with a 558 Nordie engine on the same keihin flat slides, that seems to be enough :laugh: I did try the flat slides on my Nordie and it did perk it up quite a bit
John

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Re: Gilardoni Big Bore Kit & Camshafts 3 years 5 months ago #5745

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Ian Calvert used to have a Saturno with the factory kit that took it out to 558. It went pretty well still on the standard carb as far as I know. Andy Wallington had another Saturno with Nordwest engine. The limiting factor is that a standard Saturno frame can't accommodate a twin inlet port head.

Gary Rowe raced a Nordwest on the Isle of Man and later a Spondon with Nordwest engine. That had big bore and 'race' cams. He had great problems with the head joint - as did I with the FPM 604 kit. Mine was giving about 55 bhp on a dyno. The factory Piuma racer 558 was reputably able to give as much as 70BHP, but not for long. The crankcase cracks between the main and balancer shaft bearing. Mick Noblett still managed to bring one home in the singles TT race and put in a 100 mph lap.
"Do not adjust your mind, there is a fault in the reality"
1957 175 Sport, 1993 GFR

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