|Posted on Friday, August 28, 2015 - 09:16 am: ||
I just installed a Mikuni 42MM carb and an accurate tachometer on my 97 M2.I bought the bike 6 months ago and I assume it's otherwise stock except for the V&H muffler it came with.
The throttle response is improved and the top end feels much better.
The engines pulls very strong and quickly to 6200 RPM ,and I shift or back off at that RPM.
And...for more knee room I see the various 90degree air filters. Do these work well and don't upset or restrict the carburetion?
I heard there is a 6200 RPM limiter?
I've heard the horror stories about over reving these engines... Thanks
(Message edited by truckedup on August 28, 2015)
|Posted on Friday, August 28, 2015 - 02:55 pm: ||
Here's a previous answer to that question we got from Bluzm2 for "post '99", not sure about a '97 model, but I expect it would be the same:
The race ECM does NOT raise the RPM's on a post 99 M2.
they already rev to 6800 RPM.
the ECM only gets rid of the soft ignition retard that starts at about 6650 or so.
The race ECM keeps ignition at full advance until the 6800 RPM cut off "wall".
The stocker kind of eases into it.
And here's the Dyno chart from the Knowledge Vault: http://www.badweatherbikers.com/buell/messages/3842/10398.html?1059591514
(Message edited by jayvee on August 28, 2015)
|Posted on Friday, August 28, 2015 - 03:05 pm: ||
Oh yeah, the 90 degree intake tube, so popular now even Harley makes them. There's a dyno chart in the Knowledge Vault:http://www.badweatherbikers.com/buell/messages/384 2/11192.html?1233360082
If the wind is really forcing air into the intake, I don't know how that could be measured on a dyno though. There is also an old wives take about long intake runner from the filter to the carb changes the power characteristics in favor of torgue over max hp, while short distance (like Race Kit) would favor high hp. I needed the knee room, I got the Forcewinder, but later replaced with RRC carbon version, and a Sprint Filters instead of K&N. Both the elbow intake, and the filter have been copied by a bunch of makers by now, I doubt if much performance difference between the different makers, its just a tube. The K&N X-stream filter seems like the logical one to put in that application but last I checked they didn't make one for the elbow, even though they did start making their own copy of the elbow.
|Posted on Friday, August 28, 2015 - 05:27 pm: ||
"....And...for more knee room I see the various 90degree air filters. Do these work well and don't upset or restrict the carburetion? ...." Answer...mine works quite well...bolted on straight to Mikuni
|Posted on Friday, August 28, 2015 - 06:49 pm: ||
they work until it rains.
|Posted on Friday, August 28, 2015 - 07:10 pm: ||
"they work until it rains."
Have the same model on my Sportster and S3T and have been caught in the rain on both of them. The sock that comes with it does help a good deal though. Was able to make it home with no issues after putting it on.
Even though they are on 2 of my bikes, I still think they look out of place. Not ugly per-se, but it just doesn't do either bike justice in the looks department.
I can say that when I changed from the stock air cleaner on the sporty to the Force Winder, I could feel the difference.
I am looking for other options as I rebuild my sportster.
|Posted on Friday, August 28, 2015 - 10:29 pm: ||
It burns the carbon ...
|Posted on Monday, August 31, 2015 - 01:02 pm: ||
Supposedly the Sprint Filter is "waterproof". Since we're in a severe drought, haven't tested it yet...