Hi Guys Had the Raptor dyno tuned by Doin' bikes at Liverpool (Chiiping Norton) yesterday, very happy with the results. I put a pair of staintunes and a power commander on it last year, also removed the snorkels (air intake covers which just restrict it breathing). The wallys at Central Coast Motorcycles promised me a "free dyno tune" when I bought the power commander which turned out(1) to be "upload a map we downloaded off the internet". With the baffles in, it ran ridiculously rich and rather poorly. I trawled around on the net and got a map that wasn't bad, fiddled with it a bit and pulled the baffles out to lean it a bit more. I've run it like that for a year and it's been OK, good performance but the blackness on the exhausts and smell make it clear it's running rich (and you can see that on the "before" chart), the noise with the baffles out annoys all and sundry and makes me nervous of going anywhere near the heavily policed bike roads. So... it went in for a service, got a new K & N filter, new chain and sprockets (I raised the gearing as well which was a really good improvement), then Dyno'd yesterday with the baffles back in. Charts are here, please note "before" isn't the stock bike, it's a stock engine, with staintunes with baffles, no snorkels, a k & n, and a richer map on the PC2. I don't know how that correlates to a stock Raptor but I will trawl around for a stock dyno run to compare. [URL]http://au.geocities.com/v12daimler/raptor_asis_vs_mapped_fuel.jpg[/URL] [URL]http://au.geocities.com/v12daimler/raptor_asis_vs_mapped_rpm.jpg[/URL] [URL]http://au.geocities.com/v12daimler/raptor_asis_vs_mapped_time.jpg[/URL] The first is the fuel ratio - as you can see way too rich (we knew that) The second is the dyno result before and after tuning - he's squeezed an extra couple of HP and some torque out of it, that's nice. The third however is the one that rarely gets put in the bike mags but it shows how much better the bike is to ride (and believe me, it's worlds better) - it's HP over time - you can see it's delivering 7 more HP after 5 secs - in other words it's getting up the HP curve quicker. The other thing to note on the second one is most of the addition is at the top end. Normally that wouldn't be much use, but I found that tended not to rev much past 7K (10.5K redline) as the torque peaked at about 6.5 /7 under the old map, and just felt like you were thrashing it to keep it revving. Given it now keeps delivering power I found I revved it higher into the rev range. Making the gearing (17/39 from 16/39(2) ) higher also meant the gears were further apart so revving a little higher before changing also felt right there (holding it into peak torque band - I guess that's a 2 stroke rider habit :-) All up the combo of smoother power delivery that seems to come on quicker, with the taller gearing - very happy. 1st gear is useful for more than lifting the front wheel in the air now :-) JL (1) Which was consistent with their "yes we'll fix that oil leak under warranty and not do so" approach to promising, saying they've done it and not delivering (2) Not a big change 4000rpm at 100K in top vs previously 4500rpm at a 100K, but enough)
