- Location
- Moline, IL
Looking for some opinions on the best all around pipe for piston port 550's? I am talking bolt on no internal engine mods like porting.
300/440/550 Best 550 pipe
- Thread starter x2ryder
- Start date
Tanman
Jus' keep er' pinned
- Location
- Ketchikan Alaska
I really liked my Coffman 550 exhaust. bolted right on my stock manifold. sounded incredible with a gutted waterbox and gave it some grunt. I would Imagine a full Factory would be the way to go though.
- Location
- Moline, IL
You talking the Coffman's 1/2 pipe?
- Location
- Mount Albert, Ontario
Definitely go with a 1/2 pipe type setup. Either the Coffman's, as listed above, or the Factory Pipe. Mariner also had one available that Factory pipe produced for them. Westcoast also had their own version of the 1/2 pipe setup, although I haven't heard any opinions on them.
If you aren't looking at any engine porting, the 1/2 pipes are the best way to go. I ran the Coffman's Climax half pipe on my 550 with great results. By adding this pipe and the Solas 13/18 impeller, it changed the top speed of my 550 from about 37 mph to around the 44 or 45 mph mark. A new stock SXR would pull away but not as fast as you might think they should.
The only thing I changed from the pics below, was the carb. I swapped out the old bn44 for the newer SBN44 - for better tuneability. It helped get everything jetted up the way it should be
If you aren't looking at any engine porting, the 1/2 pipes are the best way to go. I ran the Coffman's Climax half pipe on my 550 with great results. By adding this pipe and the Solas 13/18 impeller, it changed the top speed of my 550 from about 37 mph to around the 44 or 45 mph mark. A new stock SXR would pull away but not as fast as you might think they should.
The only thing I changed from the pics below, was the carb. I swapped out the old bn44 for the newer SBN44 - for better tuneability. It helped get everything jetted up the way it should be
Attachments
- Location
- Moline, IL
Yeah I have a beauitful 1/2 pipe that says FP on one side and Mariner on the other.
- Location
- Virginia Beach, VA
I have a fp 1/2 pipe with one weekend of use on it. I'll sell it shipped for $200. comes with adapter, studs, couplers, etc. It's $305 from their website & is the same setup as in Super Dee's pics. http://www.factorypipe.com/p_kawasaki.php I was very happy with the performance upgrade of the pipe when I used it btw. Ran it in Daytona in 07, but ingested sand into the motor & blew it up. A $3 strainer saved me that headache with my current motor this year.
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- Location
- Virginia Beach, VA
Tanman
Jus' keep er' pinned
- Location
- Ketchikan Alaska
I am talking about a full Coffman pipe
bad picture but its a full coffman 550 pipe with a jacket cooled head pipe and water injected at the end of the stinger. and its for a 550 it says 550 on the back of the head pipe i love it
bad picture but its a full coffman 550 pipe with a jacket cooled head pipe and water injected at the end of the stinger. and its for a 550 it says 550 on the back of the head pipe i love it
the WaTeRhAwK
fryin' up a/m electrics..
- Location
- okc
the 550 engine is so power anemic on the bottom (especially in stock form) that unless you're doing a crapload of mods to the cylinder (including a huge increase in bore), you can't run a big pipe and expect any "low-end grunt" from the thing.
in stock cylinder form, power to weight ratio plays a huge part in how you set up the engine for low end performance, and because most of the useable areas of the 550's powerband is within the transition from midrange/upper midrange to high, you have to de-pitch the prop down to 13 or 14, run 185 compression, and a "shorty" chamber so you can get the rpms high enough from midrange to high for the setup to "hit".
so , with the engine set up like that, what feels like low-end hit, is actually a transition from mid/upper midrange to high rpm hit. the actual "low-end of the engine is basically "cut out" due to the pitch of the prop not letting the pump fully load until the engine is well on it's way to the top from midrange.
so yeah, with a stock cylinder, you need a shorty pipe, and a low pitch 13 or 14 prop.
a big chamber is for low-end grunt, and a stock 550 battling the power to weight ratio doesn't have any. so using a big chamber is a waste of time and "would be power", especially with a high pitched prop that loads the pump too early for the engine to wind up, not allowing the rpms to come up to their "useable" area of the powerband before the pump tries to load the engine down.
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the WaTeRhAwK
fryin' up a/m electrics..
- Location
- okc
Tanman
Jus' keep er' pinned
- Location
- Ketchikan Alaska
tanman, where's all the pictures of that monster ski?
Well I have a few good pics of it when it was alive.... : ( and I got some more pics of it dead... : ( sad deal but if you want ill do a post on my build with all my pics of the ski. It was one of my top build of my 16 years that ski and a custom mini chopper that won some Harley show awards.
sorry to thread jack !!!!!!
but I really liked that pipe!!!
the WaTeRhAwK
fryin' up a/m electrics..
- Location
- okc
yes, more pics of it...
Tanman
Jus' keep er' pinned
- Location
- Ketchikan Alaska
here ya go
again sorry to jack thread!!!
this baby was pretty when it was all together. pretty impressive little guy too. I raced again about 15 sxr's and got 7th on my lil' 5fiddy. pretty cool but man that things sounded radical! like a real throaty freestyle ski. gave me goosebumps... what a memory!
the WaTeRhAwK
fryin' up a/m electrics..
- Location
- okc
thanks tanner. is that a 1990 model?
- Location
- Knoxville, TN
What ran you over?
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
On a stock engine that is the best pipe to run.
Tanman
Jus' keep er' pinned
- Location
- Ketchikan Alaska
yep thats a 1990 the last year of the PP engine. Its was a good boat. It a bummer I bought an 06' sxr 800 to race for this coming season. First ride since I owned it payed $5000. Big deal for me I just turned 16. went to the lake with my buddy colin. and I was runnin bouys practicing a little and he was on shore and he came out and up behind me off to my left side and I railed a bouy did a 90 degree turn right into the side of him. didn't look and didin't see. I hit him doin about 35 or so he was doin 25 or so. It was bad T-bone style. threw me over the bars blasted him off the side. The 550 sunk immediately not even 5 seconds of floating. We were in about 10 feet of water so we hauled it back. Me brand new sxr with only about 1/2 hour on it had a hole in the bow ripped the bow eye out. had to pull motor to get the gas tank out so I could glass it up and paint it. but the 550 had its whole side ripped off just about. It broke the carb off the intake manifold, broke 2 motor mounts, and cracked the hood all apart from ripping the side off. so its in a landfill somewhere after I stripped every little thing off it. bummer but it was done for.
the WaTeRhAwK
fryin' up a/m electrics..
- Location
- okc
that depends on what you're wanting the ski to do .if you wan't it to jump out of the water, and get up to about 42-45-50 mph(depending on what carb), then no, that's not the chamber to use, especially on a stock boat.
if you don't care about "out of the hole" speed, and are mainly interested in midrange and not much top speed. then yeah, throw a big chamber on a stock setup. it's a waste.
- Location
- Moline, IL
If you had to pic between a PJS, Westcoast, or a FP what woulld you take?
the WaTeRhAwK
fryin' up a/m electrics..
- Location
- okc
I would get a "shorty" pjs, throw a 13 pitch stainless prop on it, raise your compression to 185, and run a single 44, single taper-bored 46, or dual 38 carbs.