Airbox versus Pods

[ScottMc1100L]

The K&N's breath better. More air, more power.

...more dirt? I've heard (this is the trouble sometimes with these forums so many opinions becomes confusing) that K&N is better flowing primarily because of the lower level of filtration when compared to a stock filter. I'm not putting them down, just sort of wondering. True or not?! More opinions ?

...I was beating him by over a second in the 1/4 mile on the DynoDrags. That is a significant increase....

A second is HUGE in the 1/4! Maybe swapping bikes for a run would yield different results?

[49er]

Scotty Mac
I agree with your views on the drag stip results. Changing bikes would show up weight differences, and variations in rider ability. If you are talking times in the 11-12sec range, over 1 second difference equates to a huge difference in trap speed, probably in the vicinity of 20 mph.
A friend of mine suggested that we change rally cars for a run at the drag strip. He managed to get within 0.35 of a second of my time and I beat his by 0. 08 of a second. These times were after two runs each. That is a test of freindship. The ability to change gears at the ideal rpm comes from the feel of maximum torque being reached at change. Dyno tests can confirm this point for the novice.
I guess my point is, you must compare apples with apples.

[renobruce]

Scotty Mac
I agree with your views on the drag stip results. Changing bikes would show up weight differences, and variations in rider ability. If you are talking times in the 11-12sec range, over 1 second difference equates to a huge difference in trap speed, probably in the vicinity of 20 mph.

True. It equates to about 10% faster, which I think is what one should expect by adding pods, pipe, and jet kit to a stock bike.

[49er]

True. It equates to about 10% faster, which I think is what one should expect by adding pods, pipe, and jet kit to a stock bike.

Wow, 10%? They should be charging twice as much for those pods and jet kits. That's cheap horse power.

[KEITH KRAUSE]

Some K&N's and a quality pipe really open up our old bikes. Most bang for the buck by far.
Hard to say if the right name for our old airboxes isn't really "restrictor". Add a quality pipe to help things flow better both ways and you'll feel the difference. Just be sure to re-jet correctly.
Get the cams dialed in about 106-108 and your powerband is wide and the bike will be more fun to ride. I'd say a full second decrease in 1/4 mile acceleration time is spot on, from my seat of the pants experience and how these modded 750/1000/1100's run against other bikes with known quicker 1/4 mile times.

[Jethro]

Wow, 10%? They should be charging twice as much for those pods and jet kits. That's cheap horse power.

Wait until you pay $120 for 4 tint needles and 4 small machined pieces of brass with holes in them.

[tkent02]

Hey, you get a drill bit too!!!

Wait until you pay $120 for 4 tint needles and 4 small machined pieces of brass with holes in them.

But what you are paying for is the time and effort they spent and you don't have to. Spending a few hours wages is totally worthwhile if it knocks a number of hours or days off my tuning time, even more so if it prevents burning a valve along the way.

[lecroy]

Nothing scientific here, but when I ran against Tom_MLC's stock skunk vs my skunk with pods, pipe, and jet kit, I was beating him by over a second in the 1/4 mile on the DynoDrags. That is a significant increase.

I wonder what sort of accuracy it would have and if you could predict a real race with it. I would guess for a street bike that tire slip has a major impact on the E/T. It seems like a wheel dyno would not tell you much about the power of the two bikes. If two brand new bikes were put on one side by side and both had the same tire pressures, same rider, etc, I bet just how tight the two bikes were strapped down would have more than a 5% difference in the E/T. Reguardless, I bet it was fun.

[renobruce]

It was fun, but I'm not sure how accurate it was either. Two of the same bikes might be fairly accurate, but I agree with the strapping down part. When I ran my 1150 against a modified VRod, my back tire was spinning and hopping.... I don't think they had it strapped down good enough. But I still beat him! \\/

[ScottMc1100L]

...but I still beat him!

renobruce love the pic and video 8-) . I does appear that your bike was bouncing more that the Hog was. Do you think that is suspension related or how it was tied down? Maybe the operator of the Dyno favors Harleys ?

Was the end of the video cut off where you looked over to your oponent and said:

"And....I OWN it!! :razz: "
or
Not bad for a 21 year old bike eh? "

[KEITH KRAUSE]

That pic of Bruce beating that V-Rod is one of my all time favorites here.
I just KNOW that guy was ticked off behind those dark glasses.
Bruce won. Period.

[Road_Clam]

Been on this board for almost 2 years, and honestly for every 1 poistive "podded" carb post, I read 10 horrorific, regretfull posts.........

Heres a post a while back:

http://www.thegsresources.com/_forum/showthread.php?t=97315&page=2&highlight=airbox

[KEITH KRAUSE]

Jetting isn't understood by many. Many even think you just pop in a new main jet and you're done.
Then there's the variables involved with each bike. Then you need to actually do the job and prepare/adjust the carbs... and the rest of the bike, before you re-jet.
Easy to see why so many people have trouble. Lack of knowledge, short cuts taken on preparation, etc. Great recipe for frustration.

[49er]

Jetting isn't understood by many. Many even think you just pop in a new main jet and you're done.
Then there's the variables involved with each bike. Then you need to actually do the job and prepare/adjust the carbs... and the rest of the bike, before you re-jet.
Easy to see why so many people have trouble. Lack of knowledge, short cuts taken on preparation, etc. Great recipe for frustration.

True. If it was easy, there'd be no need for this forum. The performance gurus would be out of business too. But if you persevere, the rewards are very satisfying.

[Billy Ricks]

Jetting isn't understood by many. Many even think you just pop in a new main jet and you're done.
Then there's the variables involved with each bike. Then you need to actually do the job and prepare/adjust the carbs... and the rest of the bike, before you re-jet.
Easy to see why so many people have trouble. Lack of knowledge, short cuts taken on preparation, etc. Great recipe for frustration.

To go with pods you have to be willing to pull the carbs as many times as it takes to get things right. But since you have pods the job is pretty simple. As Keith said you have to have some understanding of what you're doing.

There have been a few posts about the newer bikes and retaining the stock airbox. The biggest reason is they are all ramcharged these days. Snouts in the fairing feed the airbox with all the air the bike could ever use.