Tuning Tips

Place your Plopping Posts here! Sub forum dedicated to C90 racing, tuning, and plopping!
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Diesel Dave
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Re: Tuning Tips

Post by Diesel Dave » Sat Feb 04, 2017 7:44 pm

I can see an extra 60 watts that could be freed up.

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Alan CF
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Rides:: MOT 18/6/18 TAX 31/5/18 INS 10/8/17
Location: CHESTERFIELD

Re: Tuning Tips

Post by Alan CF » Sat Feb 04, 2017 8:20 pm

Diesel Dave wrote:I can see an extra 60 watts that could be freed up.
Dont worry Dave, ones on order. will show pics once fitted.

smiffy46
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Rides:: CB500

Re: Tuning Tips

Post by smiffy46 » Sat Feb 11, 2017 9:28 pm

Show us your 4 speed gearboxes :lol:

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Alan CF
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Re: Tuning Tips

Post by Alan CF » Sun Feb 12, 2017 11:25 am

smiffy46 wrote:Show us your 4 speed gearboxes :lol:
As the pictures show ours is a 3 speed,
Anyone fitting a 4 speed will get pushed up to open class when its goes through the scrutineering. :D

Turbodiesel
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Rides:: C90T, TDM900, RGV250L
Location: Dublin

Re: Tuning Tips

Post by Turbodiesel » Wed Mar 01, 2017 9:58 pm

Has anyone changed the internal gearing. I dropped to a rear 36 (standard 15 up front) and whilst it was a very useful 2nd gear for slow corners around a wet Mondello there was just too big a gap to third and we were losing out on acceleration in 3rd gear. We (Team Black n Blue) finished 11th out of 44 overall and 6th in the standard 90 class. I reckon if we had a closer ratio between 2nd and 3rd it would a move us up a few places whilst still retaining the 3 speed semi auto needed tonstay in the rules.

The Chicken Chasers
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Re: Tuning Tips

Post by The Chicken Chasers » Mon Mar 13, 2017 10:58 am

I'm sure everyone else is running stock ratios so...

Lorenzo
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Re: Tuning Tips

Post by Lorenzo » Fri Mar 31, 2017 6:11 pm

Our engine's just finishing being rebuilt with its new sandcast magnesium cases, which should, along with the carbon fibre seat, legshields, wheel spokes and fuel tank, make it a fair bit lighter, although i haven't weighed it yet. As the rules specify standard carbs and an unmodified manifold, we've fabricated an extra kind of candlestick holder type manifold to put on top of our normal one, which will allow us to run 4 standard carbs at the same time. Our first couple of dyno runs aren't exactly superbike levels but 37hp at the wheel is pretty good going, i think. The only regret is not getting a slightly wilder grind on the titanium cam. Other than that, we're good to go, see you at Mallory!



Some of this may not be true, including the bit about us being good to go.

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Alan CF
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Re: Tuning Tips

Post by Alan CF » Sun Apr 02, 2017 9:17 pm

Got some dyno time thursday night, :D


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Ventura
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Rides:: '91 C90, '73 ST70 & Z50, '76 TL125 x2, '73 Yam RD350, '06 Scram, '16 Yam XSR900,
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Re: Tuning Tips

Post by Ventura » Mon Apr 03, 2017 6:25 am

Come on then!
Where's the numbers!!? :D


V.

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Alan CF
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Re: Tuning Tips

Post by Alan CF » Mon Apr 03, 2017 8:39 pm

Sorry Mr G, I dont want to see a grown man cry, And teams to give up before the race has not even started,
It just wont be fair to give out performance figures that other teams have no way to achieve . :D ;) ;)

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