My ZXR pictures

[John]

I never managed to get them, so here they are - I just got it back from getting the forks done and now it rides alot better.

:wari:

Now to try pay the 500$ I owe them *sigh* :apint:

[MSTRS]

I never managed to get them, so here they are - I just got it back from getting the forks done and now it rides alot better.

:wari:

Now to try pay the 500$ I owe them *sigh* :apint:
Forgive my ignorance, but what are those ugly looking tubes for?

[John]

Forgive my ignorance, but what are those ugly looking tubes for?
make the bike look real cool and fast.... and warp the time space continum.

But they are connected to the air intake, they are on the side of the fairings as well, The tubes arent as annoying as you would think though...

[bugjuice]

nice work... looking good..

[John]

nice work... looking good..

Trade bikes? comon I know you want random tubes..... :wari:

[JohnBoy]

Forgive my ignorance, but what are those ugly looking tubes for?

thats the K-RAS man!

[John]

thats the K-RAS man!
for the unbeknown.

Kawasaki Ram Air System..

[Joni]

Forgive my ignorance, but what are those ugly looking tubes for?
LOL - the joys of Kawasaki..... :shake:

[John]

LOL - the joys of Kawasaki..... :shake:

Yep, thats why honda hadto copy them :wari: - but they still cant get infront of them on the track *hides*

[Joni]

Yep, thats why honda hadto copy them :wari: - but they still cant get infront of them on the track *hides*

Mate I learned to ride on a bike like yours..... nothin wrong with the choice you made!!!! :niceone:

Now come out from behind the tree.... :confused:

:sunny:

[MSTRS]

thats the K-RAS man!
They certainly are krass

[**R1**]

Forgive my ignorance, but what are those ugly looking tubes for?

ZXR's were the first bikes with 'RAM AIR' except the only ones that actualy worked were on the race bikes way back in 88(the road going versions only had it for show) , i remember when they first came out, i had to have one(and eventualy i did)......looking a bit dated now tho. still big ups to kawasaki for being the pioners

[Oscar]

ZXR's were the first bikes with 'RAM AIR' except the only ones that actualy worked were on the race bikes way back in 88(the road going versions only had it for show) , i remember when they first came out, i had to have one(and eventualy i did)......looking a bit dated now tho. still big ups to kawasaki for being the pioners

I think you'll find the whole "ram air" thing goes back to two stroke Suzuki's of the early seventies...

[John]

I think you'll find the whole "ram air" thing goes back to two stroke Suzuki's of the early seventies...

But I never recal talk of it being anything major back then, even now it isnt that great, you gotta be moving to gain the extra presure in the airbox.

anyway, I though the first production bike with ram air was the Kawasaki's ZX-11 in the early 90's?

[Coyote]

Took the 'Ram air intakes' off my bike, they went bloody know-where. Looked stupid too

[**R1**]

But I never recal talk of it being anything major back then, even now it isnt that great, you gotta be moving to gain the extra presure in the airbox.

anyway, I though the first production bike with ram air was the Kawasaki's ZX-11 in the early 90's?

Na..... i had a 1990 zxr750sp, that had working ram air. on the the 89h1 i had the tubes only went in2 the tank not the airbox.

[**R1**]

I think you'll find the whole "ram air" thing goes back to two stroke Suzuki's of the early seventies...


Production bikes?????

[Oscar]

http://www.suzukicycles.org/photos/GT/GT550/1972_GT550_450b.jpg


Suzuki introduced a trio of three-cylinder two-strokes in 1972: the air-cooled triples GT380 and GT550 and the new flagship, the liquid-cooled GT750. Both of the air-cooled models featured Suzuki new patented Ram Air cooling system that forced cool air under a aluminum shield mounted on the top of the cylinder heads and improve cooling. The system really worked and the GT models didn't suffer from the problems that usually are attached to air-cooled two-strokes: overheating engines and loosing power as a result of it.

[John]

Well I know the one on my fairing definatly goes to the airbox, havnt had the tank off yet, but I dont care, the pipes do no harm.

But it makes the boy racers scared of me, because they think that my bike is soo cool that it creates petrol out of the atmosphere

[John]

http://www.suzukicycles.org/photos/GT/GT550/1972_GT550_450b.jpg
um dude, ram air cooling, i think its a different concept.

This ram air in kawasakis is for the pistons to breath better (induction into the air box), I know kawasaki started it first - I'm sure of it infact.

[Oscar]

um dude, ram air cooling, i think its a different concept.

This ram air in kawasakis is for the pistons to breath better (induction into the air box), I know kawasaki started it first - I'm sure of it infact.


Yes, I am quite aware of the difference.
The new concept is a way to pressurise the intake through the use of both forced induction and a still air chamber. Simply forcing air into the intake doesn't help.

[John]

new patented Ram Air cooling system that forced cool air under a aluminum shield mounted on the top of the cylinder heads and improve cooling.

Am I missing something? thats completly different?..

Excuse my ignorance but you have lost me, I think its completely different.



The basic concept behind ram air is that a moving bike will stuff air into its forward-facing intake runners, resulting in a free supercharging effect. As speed increases more air is forced in, resulting in more power and, in turn, more speed. The faster you go, the faster you'll go.

[Oscar]

Am I missing something? thats completly different?..

Excuse my ignorance but you have lost me, I think its completely different.


No you're not, I just skipped from one to the other in a confusing fashion.
The concept of forcing induction using the airflow has been around for a least thirty years with cars...

[John]

Oh ok, Well I'm reffering to it as inducting preasurised air into the airbox - allowing better presurised flow of air to the pistons.

And yes, Kawasaki DID start it on bikes. :D

[Oscar]

Oh ok, Well I'm reffering to it as inducting preasurised air into the airbox - allowing better presurised flow of air to the pistons.

And yes, Kawasaki DID start it on bikes. :D

Yes, they did, and it almost certainly works (but only at high speed).
See this: http://sportrider.com/tech/146_9508_ram/

As you can see in the article, the problem is measuring the gain - simply putting the bike on a dyno won't work as there is no additional pressure gain. There is also additional drag to factor in.

[Storm]

Anyway, I reckon your bike looks shit hot :niceone:

[MSTRS]

I think you'll find the whole "ram air" thing goes back to two stroke Suzuki's of the early seventies...
That was the GT125/185/250/380 'Ram Air' 2stroke twins. Basically the fins on the heads were wider at the front than at the back and sort of 'enclosed' in a sleeve. Theoretically this increased the amount of air flowing over the top of the engine. Those bikes were quite seriously fast in their day & cooling was always a big issue in high performance 2strokes.

[**R1**]

um dude, ram air cooling, i think its a different concept.

This ram air in kawasakis is for the pistons to breath better (induction into the air box), I know kawasaki started it first - I'm sure of it infact.

Yup...i searched the all knowing web and kawasaki were the first.

[N4CR]

Nice bike John!

KRAS.. more like 'warp speed handles' :)

Can't wait till I get mine and go for a cruise with you!

[Two Smoker]

Nice bike John!

KRAS.. more like 'warp speed handles' :)

Can't wait till I get mine and go for a cruise with you!

I found those tubes did halp the bike run a bit smoother at higher speed (on my ZXR400) higher speed being over 180kmh

Nice bike mate :niceone:

[カワサキキド]

All the tubes do is cool the rectifier on the 250. I can't remember what they do on the 400 but they are actually hooked up on the 750.

[Simon A]

That looks real nice mate :niceone: Just got a zxr myself abuot a month ago, they look pretty schmick with the black frame :cool:
Is that exhaust much louder than a standard one?

[John]

That looks real nice mate :niceone: Just got a zxr myself abuot a month ago, they look pretty schmick with the black frame :cool:
Is that exhaust much louder than a standard one?

Yea, the frame does look abit trick.
The exhaust is alot lower tone at low rpm, but up high its a major screech - I'm not 100% sure how much louder it is, But it sounds better, (I havnt heard a stock ZXR yet :( )

[カワサキキド]

The black frame looks good! I don't like the tubes on the C's I prefer the ones on the A's. Some steel braided hose would be even better.

[BNZ]

All the tubes do is cool the rectifier on the 250. I can't remember what they do on the 400 but they are actually hooked up on the 750.

Finally someone who knows there shit!!! The air intake is on the lower left fairing and goes through a god damb maze to get to the carbies, and is anything but forced in!!! :spudwhat: The "Ram Air" on the 250 pumps the air into a big empty hole under your tank where the Rectifier and Coils are placed. Performance wise, you would actually be better off to remove them :2thumbsup

[カワサキキド]

(2nd July 2003)

my understanding (and iown a zxr400)

250 air intakes = lead to nowhere but what i think could be reg/rec? cool it down, so n oram air (aside from intake in fairing, blah)

400 air intakes = a step up, they lead to the airbox under the tank which has a nozzle pointing in hte opposite direction form the air intakes - so the air goes in and circulates around but no true ram effect

750 air intakes = the deal deal y'all , better watch dat beast blast past when it gets some boost @ around 160kmph - or whatever.  :)
Here's the thread (http://www.kiwibiker.co.nz/forums/showthread.php?t=480&page=2&pp=15&highlight=ram+air+zxr) too.

[John]

**DELETE**

[John]

**DELETE**

Sorry getting abit defensive of some crap that people say.