Boosted a bit of mid,
1-3 in the upper mid,  Revs higher with more power.
2-3 at peak and
extends the peak  rpm 700 to 1000 rpm higher, where it's 3-4 hp stronger at 14.5k rpm than stock stacks

 when measured under loaded dyno testing conditions on a bike with stock cam timing

Generally, we don't usually remap the FI when doing stack design, preferring to design stacks that improve power without creating humps and hollows in the fuel delivery curve.

The Factory pro Stack advantages are better average upper midrange and the addition of a "triangle of high rpm power" (that wasn't there before). Instead of power dropping off just over 14k and shifting at about 14.3k, now, you have an extra 700 - 1000 rpm of increased powerband and better peak power that wasn't there before.

The base test and the R&D final testing was done on the same day with a  BMC Race filter (as I think that just about everyone is using one). The stack power results should be the same powerband peak power differences with stock, stock w/ screen removed, K&N, Pipercross, Uni air filters.

Uses all stock mounting screws and air filter access is retained.

NOTE! The below hp figures are TRUE HP Scale
 for Dynojet HP: multiply True HP x 1.1 to 1.5


 

NOTE! The above hp figures are TRUE HP Scale
 for Dynojet HP: multiply True HP x 1.1 to 1.5
"True" and "Effective" hp doesn't change........ wandering "standards" do.
http://en.wikipedia.org/wiki/Horsepower

V stack install pics
 

EVO Shift STAR kit

It's everything that I ever wanted to do to a shift mechanism -
Slightly stronger detent spring - a new MicroBearing detent arm and the final piece... A completely redesigned, empirically refined, multi angled, variable radii, repeaked and valleyed:
EVO  DETENT STAR
This part will totally change the feel of the bike as a whole. The shifting effort is about the same - but the speed at which the gears actually engage is dramatically improved - Quicker, easier, shifting - A "twitch" on the lever and the throttle and you are in the next gear! Perfect for track use and road riding for effortless downshifts into a corner and just a "tap" to upshift without any more than a "twitch" off the throttle -

That's not even mentioning that missed shifts virtually disappear!

In town? Low rpm cruise in second - shift to third? So quick and smooth that it will surprise and amaze - NO more clunky, lazy shifting in town - As I said - it's totally different and improved -

Proven concept - Virtually all the Factory Pro Support riders in the AMA and WERA multi- Champions Vesrah Racing tested and proved the EVO-7 Stars in 2003.

Stock shift performance that everybody used to take as a "given" will be regarded as "slow and lazy" after riding a bike with this kit -

Kit includes the new Factory Pro designed Shift Kit, a new Factory Pro detent arm with a low friction microbearing roller, a new Factory Pro shift spring and the NEW Factory Pro EVO Detent Star.

Make shifting MUCH quicker. MUCH easier, MUCH lighter and virtually eliminate missed shifts.

Marc  800 869-0497 

Install directions page

...................................................

• How do you know that a transmission is shifting quicker and more reliably?

  • You can feel it when riding. Fewer missed shifts.

  • Your "quickshifter" equipped bike shifts clunkily after an EVO Shift STAR kit install and you have to decrease "shift kill time" by 5 to 10ms to accommodate the EVO STAR's quicker shifting.

    • That 5 to 10ms is now converted to "engine power" time, rather than "engine kill" time. That will improve power delivery time on a racetrack and at the drags.

Here it is - The legendary, almost mythical Teka 4!

YEARS of R&D and Hundreds of thousands of dollars to develop

Designed to be tuned to Best Power as are all Factory Pro tuning products - AMA proven, over and over again.

Have a lumpy idle after replacing your exhaust?
If anything can tune the lumpy idle out, it would be the Teka 4. It's so simple to tune that a computer equipped rider can easily do low speed tuning.

Can be tuned to Best Power on the legendary EC997 dyne systems - or a dj or dj clone, if there's not a local EC997 dyno near you.

Remember

It's the Teka 4:

"It's REALTIME"

Adds 2 to 2.5 peak TRUE HP.

These stacks, with the BMC Race filter, added 3 TRUE HP -

Perfect for your racebike, trackday bike or for your awesome streetbike!

The majority of improved power was due to the V Stacks.

Testing on an EC997 Low Inertia brake dyno indicates that if one were to install stacks and the BMC RACE filter, you could then, with a proper dyno, advance the intake cam to gain even more lowend and midrange, in addition to picking up the peak number, too.
This is due to the fact that the stacks decrease the amount of time required to fill the cylinder - therefore allowing you to advance the intake cam, i.e. closing the intake valve earlier and that increases the trapped compression (i.e. "psi" on a gauge).
It's the same as milling the head for more compression - which all streetbikes need!!
Premium pump fuel would be fine - Modern smallbore motorcycle engines simply don't detonate, even on low lead regular.

Feedback
"I can keep up with R6's!!"
Lopez, 11/2003 -  Thunderhill Raceway, CA
 

The Original "Pro Shift Kit"
Make shifting quicker and virtually eliminate missed shifts. Helps address missed shifts caused by poor shift detent "star" profile. MUCH more consistent shifting!
Not at liberty to disclose WHO used this kit on their F4's.........

It's the Shift STAR kit w/o the STAR

User's comments

All power products are developed on the Factory Pro EC997a Low Inertia Load Dyno for .1hp resolution for maximum performance.
For the best in tuning - locate the Factory Pro Dyno Center nearest you.
They will have the latest Factory Pro CBR600fi products first!

To diagnose rich or lean conditions, comparing Factory Pro's Eddy Current Sweep and Eddy Current Step Tests will allow, even without an exhaust gas analyzer, you to diagnose many rich and lean carburetion problems.

To do these tests, you must have load conditions that are equal, as far as the engine is concerned, to get comparable information. Factory Pro is the only company that specializes in tuning and has empirically derived more than one formula to do this.

Generally, if other dyno companies are asked, they respond with "We can do that" or "You don't need to do that." Not acceptable. Your dyno manufacturer should be able to help tune.

Companies with add-on "retarders" bolted onto high inertia systems cause excess engine wear when testing.

Eddy Current dynamometer systems must be originally designed as low inertia systems so as to not cause excess engine wear.

Factory Pro's EC997 Eddy Current dyno is the state of the art in Tuning Procedures.