are pod filters better than a box on csr 1000?

Exactly. What my man nads said.

nads.com wrote:

faffi wrote: Found the test report I mentioned, prinited in issue 8, 1983, of Das MOTORRAD.

Stock GSX1100M Katana, 107.5 main jets, 109 hp @ 9000 rpm
Same Katana but with K&N replacement filter and 112.5 mains, 108 hp @ 9000 rpm
Same Katana but with K&N pods and 140 mains, 103 hp @ 8300 rpm

However, that doesn't tell the whole story. The dyno readings began at 4700 rpm and went to 9200 rpm.

The Stock bike made the most power between 7300 and 7600 rpm and above 8400 rpm.
The K&N replacement filter made the most power everywhere else, but the two were never more than 2 hp apart and mostly well under 1 hp. The stock setup had a dip around 7000 rpm, the K&N at 7500 followed by a peak at 8500 and another dip at 8500, so a bit more bumpy up top. Still, it is unlikely that any seat-of-the-pants dyno would notice much difference between the two.

The individual filtered Katana, however, averaged 6 hp less than it did with the other two filters. And power dropped off rapidly after 8300 rpm. The first dyno run with pods only revealed 84 hp; the 132.5 mains proved way too lean. The 103 hp run came on their fourth try with various jets.

They also tested a KZ750 with pods, but despite a lot of attempts, they never managed to get the engine to run well enough to get a useful dyno reading; even with a constant throttle setting, power fluctuated wildly at high rpm.

Steady and strong vac signal and the podded carbs will hold steady up and down.

No kz750 I ever saw had any kind of real vac at the intake ports.

If you've got 180psi you can make steady power with pods.

But like I always say, the key is that you gotta have enough jet.

That suzuki sucked on the dyno until it got the gas it needed.

And hey, it's a suzuki.... go figure it's just wrong.

My guess, the suzuki carbs needed to sustain wide open position,

did anyone check for that? Heck no. And so you get screwed up

results, the main result being.... CONFUSION

I don't even run pods or abox on my 1015, and

they open all the way. give the the idle and midrange circuits

enough fuel you'll see a world of difference in the vac signal.

After all what makes vac anyway?

In other words if your slowing down, and your slides are wide open,

you need more fuel somewhere in the range. It's one or the other,

or it's weak vac.

If you install pods and the slides won't lift, you need to be

cutting some spring. But that's not allowed so you simply condem

everything and have a hey confusing everone else?

That's what the masses seemed to have done here.

SO it my turn now! :lol:

This data is all well and good, but you need to understand, your elevated tuning knowledge represents 1% of the people that fall prey to buying "pods, jet kits, and pipes" . The other 99% of average to below average garage tuners will slap the predetermined kits in and I about guarantee the CV carbed bike will run poor and the novice tuners will have little knowledge about vacume to slide relationships and "cutting the springs"... (strictly my past experiences opinion)