phil37
Hero member
- Location
- Lincolnshire
Good figures Rob - be interested to see if 3 into1 hampers the mid range at all - Best of Luck - Phil
What the Dyno Saw ! Laverda Triple Vs Kawasaki ZR1100 Zephyr Shootout !
- Thread starter Jota Rob
- Start date
Romeo.D
Hero member
- Location
- Zadar - Croatia
lower fork for cca 5 cm , stering will be faster .
Vince said:
Hi Vince, no the 10 hp increase was down to a change in head, the motor was already optimized in 2008 on the same dyno etc, but the head fell to pieces (remember story about soft head, dropped valve seats etc) I secured another head and it was extremely well modified, that's where teh difference was !
Thanks Phil
Romeo.D said:
Heh, Romeo, it's already extreme, 30mm rear is a lot and a big change from last year, I want to enjoy the ground clearance from the raised engine too, so I'll stick. I guess you have lowered the front 50mm? are you not grinding it out ?
I have jacked the rear of mine 15mm with longer shocks,did a test first with a bracket that raised the rear 25mm with the forks pushed through 35mm and it was just a touch too tippy,had me worrying re typically bumpy Oz roads.It did tip in very fast.So its now 15mm up at the rear with the forks through 25mm,steers with ease,no scraping and stable
Romeo.D
Hero member
- Location
- Zadar - Croatia
Rob my suspension is done in Wilbers factory , back is even higher then 3cm (hight adjustment instaled ) front is between 5-10cm lover , engine mounts standard . No grinding , i am much slower then you . Can not compare your and mine driving . I am fast on coast road in my area ( most drivers are afraid to drive fast here ) , track stil need practise .
But suspension works perfect and bike sters much beter .
But suspension works perfect and bike sters much beter .
R
Reggie3cl
Guest
100mm off the front end?
Blimey. Is that on Marzos or Cerianis?
Romeo.D
Hero member
- Location
- Zadar - Croatia
Marcos , i can mesure lenght now to compere it .
I felt today was a success although I do have one problem to resolve.
I have an intermittent hesitancy at mid revs (4500 - 5000) which at worst case may be the exhaust, however it may also not be noticeable on the road. I shall see what's its like in day to day use and work to resolve it.
Notwithstanding the above which I can't ignore, I am pleased that I have gotten rid of the system I had on the bike, lost 3.5 kgs in the process and flattened out the torque graph slightly. There's surprisingly little in it, less than I expected !
The 1st graph shows the best from 2009, (2010 figure was down a tad from 2009) and the best from today.
The 2nd graph shows 2 other bikes on the same dyno, one being my Jota and the other being my bro's Zephyr which is a credit to him. He doesn't have the reliability problems, hasn't even looked inside his engine and it's pretty standard apart from exhaust, a rejet and some filter media change.
I have changed the correction factor from EEC to DIN, to keep in line with what most people use although the tester prefers EEC which knocks about 3% from these figures. To put it into perspective, he tested several of the new BMW S1000rr and they come out at 196 RWHP EEC as standard !
Interestingly (well if you like this kind of stuff) we altered the advance curve in an attempt to dial out the mid range roughness. 2 years ago we tried + and - 4 degrees advance over the whole curve with no change. This time with the new exhaust we did the same and 4 degree advance, immediately the motor leaner. After adjusting the needle and mains we gained some more power. Full advance is not extreme on this motor.
I have an intermittent hesitancy at mid revs (4500 - 5000) which at worst case may be the exhaust, however it may also not be noticeable on the road. I shall see what's its like in day to day use and work to resolve it.
Notwithstanding the above which I can't ignore, I am pleased that I have gotten rid of the system I had on the bike, lost 3.5 kgs in the process and flattened out the torque graph slightly. There's surprisingly little in it, less than I expected !
The 1st graph shows the best from 2009, (2010 figure was down a tad from 2009) and the best from today.
The 2nd graph shows 2 other bikes on the same dyno, one being my Jota and the other being my bro's Zephyr which is a credit to him. He doesn't have the reliability problems, hasn't even looked inside his engine and it's pretty standard apart from exhaust, a rejet and some filter media change.
I have changed the correction factor from EEC to DIN, to keep in line with what most people use although the tester prefers EEC which knocks about 3% from these figures. To put it into perspective, he tested several of the new BMW S1000rr and they come out at 196 RWHP EEC as standard !
Interestingly (well if you like this kind of stuff) we altered the advance curve in an attempt to dial out the mid range roughness. 2 years ago we tried + and - 4 degrees advance over the whole curve with no change. This time with the new exhaust we did the same and 4 degree advance, immediately the motor leaner. After adjusting the needle and mains we gained some more power. Full advance is not extreme on this motor.
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Err,its a weapon isn't it.Only thing is theres that dip at 4500 in the toque again.I was very surprised mine didn't have it,then again mine doesn't have ONE HUNDRED AND FIFTEEN HOUREPOWER AND 80 FOOT POUNDS.BTW isn't the Dyno bloke the one who used to do stuff for John Robinson from Performance Bike mag
Romeo.D
Hero member
- Location
- Zadar - Croatia
Was there ever stronger Laverda around .
Vince said:
It's been pointed out before Vince, Phil Todd notably, Figures great as they are, dont really tally up with other dynos. So much as I'm pleased "relatively" I'm not going to read too much into the DJ figures. Only the comparism between the 3 bikes shown and to a lesser degree, figures from other Dynojet Dynos.
The Testers name is Nick and the answer is probably...he's been running the dyno for 17 years I believe and spannering for race teams in the 70's on, I enjoy working with him and he enjoys working on unusual bikes.
The important thing is 4th gear clearly works
Yes Many over the years, some in OZ !Romeo.D said:
Maybe there are stronger Laverdas around but not so many dyno graphs to prove it,there are lots of posts re Ducati 2 valve belt drive twins and even with some really cluey types trying very hard they hardly ever crack 100hp at the wheel.Take your point re dyno differaces Rob,I am sticking to my helpful bloke for any future work.