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Old 13-May-2009, 17:11
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Quote:
Originally Posted by skidlids
I've managed that as well, but hopefully things will now be a bit different, I'll soon find out at Snetterton if I can't get it dyno'd before then.
Still got to remake a coil mount and try fitting the 998 PC3 USB, before it goes anywhere but i'm hopeful I have improved on the 55bhp I had at Donington.

Like Paul p I went the route of converting what was basically my 583 Class B bike to a 620, but as I could not get any life out of it when fitted with the 620s original clocks, ECU and coded keys I opted for the 750SSie ECU route without realising some of the pit falls, after all my 583 had been so easy to sort out, getting 51.5bhp at the rear wheel and like Paul P netting a few Class B podiums. Since going the DIY 620 route we have both struggled to match the performance we acheived on our 583s.
Some times I wish I hadn't switched class as Class B was more fun from where I was sitting

Take Pembrey
2005 - NG Minitwins 583DD bike on Pirelli Super Corsas - 1m 10s lap
2007 - NG Minitwins 750SSie on Pirelli Super Corsas - 1m 08s lap
2008 - DD races Class A 620 Diablo Control tyre 1m 14s lap

and I'm certain its not the Diablo that was costing me 4 secs a lap over my 583, I was expecting at least 1m 10s on Diablos.

Hmmm, there aren't too many who have switched from 583 to 620 and matched their previous results though. It deffo took Andy S a while to adapt, Chris W, Phil H didn't match their results initially, obviously the exam paper is somewhat harder (in terms of competition), but not sure about how much better their lap times were either?

I've not ridden a 583 at all, so no expert here, but as a discussion point, does the fact that the throttle on a 583 can be wound fully on before a 620 one could (by normal riders like us) give riders more confidence to go faster? As its one less thing to worry about? Maybe it just tales time?

I remember a test day at Snett, when I was matching / catching a quickish GSX600 rider (racer) on corner speed around bombhole-corum on my ol' 620 and whilst it wasn't all full-throttle for me, it was nowhere near for him, he had decision to make on throttle opening and I didn't really, and I closed on him.

Gawd nose!!! - but Jimbers seems to have found his DD mojo since mounting a 583, I reckon he would go faster on a 583 than a 620????

When Lily's not crashing , she says her laptimes on a DD bike compare closely to those on her 998. Familiarity, or fear of the unknown? :dunno:

So is it fear of the awesome power, torque and drive of a 620 over a 583?

Or is it that that they weigh a ton? Or is it just to have a little bit more power means you have to be a little bit more cautious?

Or perhaps there's less to fug about with on a 583 and hence the tinkerers like you and Payne can really mess up a 620 !!!! and slow it down.


The answer? Only go near it to ride it..........and if it aint broke.......!!!
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