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[ajh]

This is the "B" 103 in stock form, both graphs are showing SAE Corrected run fyi.

[Big Al]

This is the "B" 103 in stock form, both graphs are showing SAE Corrected run fyi.

Thanks for doing this- it really lets me know what we are getting and what we're not. [smiley=xyxthumbs.gif]

[Fired00d]

Thanks for doing this- it really lets me know what we are getting and what we're not. [smiley=xyxthumbs.gif]

From some one that has done these upgrades how about I show you instead of tell you what I get everytime I twist the throttle......

1st gear , 2nd gear , 3rd gear , 4th gear , 5th gear

 [smiley=pumpkin.gif]
Ride Safe,
Fired00d
 [smiley=fireman.gif]

[Big Al]

From some one that has done these upgrades how about I show you instead of tell you what I get everytime I twist the throttle......

1st gear , 2nd gear , 3rd gear , 4th gear , 5th gear

[Fired00d]

hd-dude gets my ride on Monday and I am looking forward to a similar set of

[Unbalanced]

Firedood,
I wish I had the sense to be more conservative .....     [smiley=oops.gif]   sure hope my wife dont see that hehe.

[Fired00d]

Firedood,
I wish I had the sense to be more conservative .....

[Unbalanced]

OUCH .....   I deny everything its the meds talking.

[Boatman]

I too have installed the 575's and can highly recommend them to anyone with a 103 motor.  The bike was not dyned before or after.  I am just using my butt dyno.

Before 575's-stock 103 with SE air cleaner, stock exhaust/mufflers, and cartridge download.  The motor ran/started fine cold or hot.  Driveabiliy was good.  What I didn't like- there was not much torque between 2-2400 rpm's..  Everytime I got close to 2,000, I would down shift.

After 575's-103 with SE air cleaner, stock exhaust/mufflers, and cartridge download.  It still runs/starts fine hot or cold.  The big difference is that you have power starting at about 1800 rpm's..  Just twist the throttle and go..  You don't have to downshift now when getting close to 2,000.  Even the touring mufflers have a different note on acceleration-sounds like you have a motor now.

Am set up to have the air fuel mixture checked on Monday on a dyno..  Just want to make sure it is not lean.  If it is, it would be borderline, as it still runs to good with no pops, farts..  Maybe won't have to buy the TMax or Autotune even though I have the bungs installed.

If you want power over 4,000, this cam  is not for you.  If you want a cam that works in the 2-3500 rpm range which most ride in-it does what is advertised.  Thanks Zippers and for all who posted and recommended this cam before me.  Highly recommended.

[HWYMAN1]

I too have installed the 575's and can highly recommend them to anyone with a 103 motor.

[Unbalanced]

A few things while this is apart .... I would change the throttlebody to a 50mm either Zippers or Horsepower inc.   make sure you get cruise control with it.

In the engine side I would go with a Fueling Oil Pump, I wouldnt skimp so I would also put in new lifters (Fueling or other since your there, Zippers Adjustable Push Rods, and a Zippers Schim.

Whether you go with the standard Air Cleaner or the enlarged one is up to you make sure if you with the larger air cleaner that you get the extended studs

I also want to point out that this cam does not die at 4000 rpm's ... look at the dyno's and you will see they carry through past 5000 rpm's

-harry

[HWYMAN1]

A few things while this is apart .... I would change the throttlebody to a 50mm either Zippers or Horsepower inc.

[Boatman]

Otophile-
Unbalanced and others know a whole lot more than me.  I didn't do a larger TBI as I still have the stock exhaust/mufflers.  I like others did the Feuling pump, bypass shim, and lifters.  As you are thinking, it's best to do it right the first time.  You will like the results.

[DCFIREMANN]

A few things while this is apart .... I would change the throttlebody to a 50mm either Zippers or Horsepower inc.

[Fired00d]

Have order or on the way most of the parts you mentions, but had questions about throttle body change. Had missed this in previous threads or had true brain fart. Thanks for all the help, John

I have the same setup as was mentioned, and I didn't do the "Throttle Body" change. I'm not at home to see my parts manual but I'm pretty sure that the throttle body is not an "interior" part to the motor. I believe it just bolts up the heads, just like a carburetor would. So if you do decide later to change this you don't have to tear the motor down to do it.

 [smiley=pumpkin.gif]
Ride Safe,
Fired00d
 [smiley=fireman.gif]