vel stacks cougar

[mpp12]

guys this is a great deal if you want the power not to drop and keep up until the rev limiter...

http://www.ebay.com/itm/300824859144...84.m1423.l2649

and for that price!!!

[Mike Edwards]

I've got some for the K9-L1 in the classified section for anyone with a more recent model.

Can vouch for how good they are as we used them in BSB as did the Crescent Suzuki team.

[dylanjacobus]

40 dollar shipping!

[mpp12]

Keep the buying out of the open forums.............


Knight2211

[BillV]

They say "Easy fitting, no clamps, push fit to throttle bodies" but I don't see how they will seal the airbox opening, as the OEM stacks do. Does anyone know if they do?

[mpp12]

I had them long time ago.... and now order a set again.

They are 2 pieces, one goes from the bottom and then you screw the top. they use O rings, you just grease them so they slide and seal nice. and its perfect.

[JP1143]

Originally Posted by mpp12

I had them long time ago.... and now order a set again.

They are 2 pieces, one goes from the bottom and then you screw the top. they use O rings, you just grease them so they slide and seal nice. and its perfect.

Definitely a neet looking stack. I wonder how it would effect the power of the motor if you were to use 4 of them? Yosh made a stack similar to this one here. I guess they did their R&D showing that using just the middle stack made the best power.

What kind of power curve did you get by using these mpp12? I use all 4 short stacks. Check them out man on page 48 of the El Toro thread if you never seen mine.

[ricks041k]

$240.00 for 2 stacks?? seems pretty pricy for very minimal if any gains

[mpp12]

I use 4 short, but those gave more power in the sense that the power does not fall after the bike hits the top it lets the bike keep pulling

not for everyone.

[King Kenny]

All your stacks are belong to me

CougarRed Dyno chart for Stock GSXR1000 K6, stack fitted & also with stack & full system fitted

[mpp12]

I dont know if the change is so dramatic but there is to be gained since you get to the almost limiter and power does not fall.

[BillV]

Cougar says that the stacks can cause the engine to run lean and that they recommend installing a Power Commander. I wonder if the green and red lines also include a PC.

[King Kenny]

Will let you guys know when I fit them.

I will have a Motty AFR & Wollich Racing Logbox setups sho should be able to see easily what’s happened to the fuelling.

May also test them with the stock setup with Yoshi Slip-On vs a full Yoshi race system also.

Am sure the Cougar dyno results are with a PC3. They only sell race compnents so naturally you would expect them to show the best gains possible & not crappy uncorrected AFR charts.

[T.R.E]

There is no way you can get 8 hp from a set of stacks,I've got Yoshi stacks in my middle cylinders and the gains are not noticeable at least for my engine setup...

[mpp12]

waiting for the results...

[mpp12]

TRE, from what I can gather is not a gain of more hp, its that it lets you stay on power for more hi rpms. usualy this engines nose down at hi rpm.

[T.R.E]

Originally Posted by mpp12

TRE, from what I can gather is not a gain of more hp, its that it lets you stay on power for more hi rpms. usualy this engines nose down at hi rpm.

To my understanding,at least for the K7, the best combination to keep the power going is to put 4 short stock stacks...

Cougar red and Yoshi stacks might give a slight increase in the mid-range without losing any top end

[King Kenny]

Received the stacks today. Machining is first class. Can't wait to fit them. Will contact Cougar to try get indications of the amount of fuel to be added to the top end

[mpp12]

Just let the AFR tune to same specs as before

[King Kenny]

I have a GSXR1000 K6 & K8 but only one Motty AFR.

Both bike have PC3's though so will see if CougarRed have base fuelling settings