Kawi2strokes.com Forum

Enthusiasts from around the world dedicated to the preservation and ritual flogging of the infamous Kawasaki 2-stroke Triples
It is currently Thu Mar 28, 2024 5:25 pm

All times are UTC - 5 hours




Post new topic Reply to topic  [ 60 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6
Author Message
PostPosted: Thu Nov 13, 2014 2:23 pm 
User avatar

Joined: Wed Jun 08, 2011 10:12 pm
Posts: 2161
following up. this is the baseline for my S2 PRE REEDS so i can see how it affects the curve.
a lot have seen this elsewhere but seems relevant here.

the 59 HP was the first run, i did 2 others (that i forgot to sit ont he seat when runnign ont he dyno) and read the other 2 numbers. my mistake! so, im figuuring if i average them im starting off at around 50 RWHP. Not too shabby for a non ported/non corrected head S2. the kids at the dyno place were very impressed with the dinosaur and had never seen a triple. and yes, you read right, I ran it on the dyno.

Image

Image


more to follow when i get the adapters on hopefully this week or next. trying to stuff a new motor in the 62 falcon right now too. busy fall!


Top
 Profile  
 
PostPosted: Thu Nov 13, 2014 2:33 pm 
User avatar

Joined: Thu Jun 09, 2011 9:12 pm
Posts: 1902
Location: Rockville, MD USA
Awesome post; here's to huge HP gains :thumbup:

_________________
There are only two types of motor sport racing:
Nitro and everything else
(Sometimes referred to as fast and slow)


Top
 Profile  
 
PostPosted: Thu Nov 13, 2014 2:58 pm 
User avatar

Joined: Fri Jun 20, 2014 12:41 pm
Posts: 272
Location: Central florida
Sweet!


Top
 Profile  
 
PostPosted: Thu Nov 13, 2014 4:28 pm 
User avatar

Joined: Wed Jun 08, 2011 11:34 pm
Posts: 9826
Location: North Central NC
Was it the H1 CDI messing up the graphs? They look like a connect-the-dots for Lisa Simpson's hair or something. 45.6 and 47.2 seem like a very strong running S2, and they're close to each other, which makes them look pretty legit. 59 seems like the dyno was going ape.

_________________
If it surges, that's normal, upshift.


Top
 Profile  
 
PostPosted: Thu Nov 13, 2014 4:58 pm 
User avatar

Joined: Wed Jun 08, 2011 10:12 pm
Posts: 2161
the loop at the top is where the zeeltronic rev limiter kicked in.


I should probably run it again for another baseline but i was off the seat for the 45 and 47 runs. im pretty sure it was slipping the tire. even the dyno guy thought so but i'll rerun it next week maybe.


Top
 Profile  
 
PostPosted: Thu Nov 13, 2014 5:09 pm 
User avatar

Joined: Wed Jun 08, 2011 11:34 pm
Posts: 9826
Location: North Central NC
I don't understand how a rev limiter would make a loop. Wouldn't you think it would just hold the RPM steady at the limit setting? The graph shows the RPM drop while the torque continues to climb. Maybe its a phenomenon of inertia dynos and rev limiters, but it seems odd.

Is RPM taken from the ignition, or is it calculated from rear wheel speed and the overall drive ratio?

_________________
If it surges, that's normal, upshift.


Top
 Profile  
 
PostPosted: Thu Nov 13, 2014 5:50 pm 
User avatar

Joined: Wed Jun 08, 2011 10:12 pm
Posts: 2161
rpm is from ignition. i watched it thats exactly where the rev limiter hit. i rolled it back down as not to shock the transmission. it did the same thing on all the runs. at the very top of the limit i have it retarded a LOT then it clips it.its sort of a 'soft' limiter', not a stutter type.


Last edited by m in sc on Thu Nov 13, 2014 11:47 pm, edited 1 time in total.

Top
 Profile  
 
PostPosted: Thu Nov 13, 2014 5:53 pm 
User avatar

Joined: Wed Jun 08, 2011 11:34 pm
Posts: 9826
Location: North Central NC
Very interesting.

_________________
If it surges, that's normal, upshift.


Top
 Profile  
 
PostPosted: Thu Nov 13, 2014 7:25 pm 
Moderator
User avatar

Joined: Thu Jun 09, 2011 6:16 am
Posts: 2146
Location: North Alabama
Standing by..... :ugeek:

_________________
Busy doing more riding than wrenching.......


Top
 Profile  
 
PostPosted: Thu Nov 13, 2014 11:48 pm 
User avatar

Joined: Wed Jun 08, 2011 10:12 pm
Posts: 2161
Jim wrote:
Very interesting.
it is. very easy on the motor, no sudden shock when hitting the limiter for me is good. easier on the internals. that zeeltronic is an awesome awesome unit.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 60 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group