828 stroker with 550 resonator??

[kawirydr44]

So ive been running my 701 with a 550 stinger resonator not sure on the make or model but it worked great with my type 9 and my 701! even though the diamaters are smaller i had no power loss.... well now Im going to a 828 stroker and switched to a B-pipe and im wondering if this will still be ok to run or if it will restrict flow too much. i just love how it feels so dry with a resonator even with a b pipe compared to a waterbox... and ofcourse the sound of this thing is amazing! Heres a few pictures.. i was thinkin bout doing some modifing to allow more flow, cuttin the end just above the weld.. should open it open a little but im not worried about the end, im worried about the intake side which seems veryy small... i included a picture of this measurement, i was thinkin maybe cutting this completly off and weldin on a bigger one... but let me know what you guys think. thanks!

 

[kawirydr44]

anyone????

 

[onesojourner]

is that thing super loud?

 

[egbrig]

That is a very rare AEF (Dave Simon) built 750 waterbox. That waterbox along with the stinger reducer added 12hp (verified on FP's dyno) on Kawi B Pipe. Don't mess with it. It just needs to be tuned in correctly. Yes its louder than normal but it does work awsome.

 

[vshockey10]

That is a very rare AEF (Dave Simon) built 750 waterbox. That waterbox along with the stinger reducer added 12hp (verified on FP's dyno) on Kawi B Pipe. Don't mess with it. It just needs to be tuned in correctly. Yes its louder than normal but it does work awsome.

wow thats cool. I think this is the first time that I have really heard that a water box added significant amount of Hp like that

 

[kawirydr44]

thanks a bunch man! i actually traded my fp waterbox for this becuase i love the way it sounded, but we had asumed it was for a smaller ski... very good info to know. so connectiong to a yamaha b pipe just as it is would be totaly fine?

 

[egbrig]

I'm not going into how it works because most here should learn for themselves but with the right stinger reducer you can make a big difference. You have something rare and if you ever decide to get rid of it pm me.

 

[kawirydr44]

well thanks you very much im just still a bit confused being im not sure what a stinger reducer is...

 

[kevbo]

well thanks you very much im just still a bit confused being im not sure what a stinger reducer is...

All rec pipes are designed to be pump gas safe. Adding a little restriction after the pipe makes more power but also increases octane requirements. At least you will know why your pistons melted.

 

[kawirydr44]

ohh i see... well considering my compression will be between 210-220 ill be running 110.... will this be ok?
btw thanks for all the help! a lot of you guys on here know a tonnnn of *&^t and i absolutly love learning it from someone who truely knows what there talkin about, not tryna just sound like they do.

 

[kawirydr44]

id like to learn all this on my own but unfortually i dont have the money too..... if i melt a set of pistons im done for the season.... so i need ALLLL the info i can possibly get!

 

[SUPERTUNE]

Race fuel can save $$
If you miss the setup a little... it just won't run good instead of pump gas running good then all of a sudden you have a burned piston.

 

[masterblaster]

doesnt the stinger restriction make the 12 hp difference? the wb is just for moving the water out faster id guess. I tryed running a stinger restricter on my stroker,but it made to much motor heat and jetting up didnt seem to help

 

[Matt_E]

Interesting info. How did you find out it made to much motor heat?

 

[kawirydr44]

doesnt the stinger restriction make the 12 hp difference? the wb is just for moving the water out faster id guess. I tryed running a stinger restricter on my stroker,but it made to much motor heat and jetting up didnt seem to help

hmm interesting. what kind of fuel were you running and what setup if you dont mind me asking.... and also to just clarify, is what i have the stinger restriction or just a waterbox, am i missing a piece?

and thanks chuck for info! i already took your advice and switched to a b pipe altho i got a hold a mod chamber before i learned you guys love the limited chambers but hopefully itll still work.

 

[egbrig]

Way too much to type to explain how and why it works. When explaining everything in simple terms there is alot of info that just doesn't come accross and people get the wrong idea. Back in the day, I met some racers from NJ who bought one, put it on a dyno, set it up as per instructions and found that it worked and were blown away that something actully worked as it was supposed to. They used to do that to alot of stuff and were usually disapointed. Torr, yes a stinger reducer can make extra top end but how do you retain bottom and make more mid and top, thats where it get tricky. Waterboxes are not as simple as you think.

 

[kawirydr44]

ohh im slowly gettin pieces and pieces. so yes this will make more power.... but how i can get it to make the power down where i want it is gunna be the hard part...?

honestly im not gunna be soo worried about a few extra hp... im going to a bigger motor and a much smaller hull i dont think ill be looking for more power right away, i just wanted to make sure that this wasnt going to blow up my stroker or loose major power becuase if its gunna be very dangerousr to run.... i want to sell it and get something that i know will work.

 

[masterblaster]

You will have to play with your top water screw on the b pipe,and carb jetting to make it work well and still have good bottom,Our type tuning is really much more simple than a race tune,We dont really have to worry about losing a little upper mid and top pull and shaving some rpms off the top. I was just using a push in sleeve testing the reducer,Ive seen multi dyno run results showing close to 10 hp from stinger reducers.... testing im using 50% 110/93 oct I have a stroker big bore that just makes alot of heat even with big dual cooling fittings in the pump and no restrictive tees or small fittings or hoses

.I find with the restric it was just making to much heat,even jetted up the cylin was way to hot! It makes a huge diff to add some water at the top screw to make less heat and get MUCH better low end. I could not find anymore low end pull with the restric,I found more upper mid range,but I dont ever use my ski at that mph and the extra heat risk wasnt worth it to me.I was running relative low timing down low and more timing than Id like up top, It may be worth a shot to try my tl ign stroker with much lower final timing and see how that does with a stinger restric. Im over testing though,theres so much to balance out with,carbs,timing,pipe,pipe water settings,prop.add a restric to that and it all changes again. I got both my stroker skis figured out over the winter water tesing,its time to beat on them and ride some surf ,im sick of didling around in flat water testing

 

[egbrig]

Kawiryder44 its the best waterbox but it will take an advanced tuner to get the most out of it. It won't hurt your engine just by running it. Torr, you've seen dyno results from engines with room to go, you have never tried to take a maxed out engine and go from there. This is from the mid 90's but it still is more advanced than anything most have seen and yes, its more designed for a race engine than a freeride but if you know how a pipe works then it is still something to work with.

 

[kawirydr44]

right on thanks guys. looks like im just gunna have to hope for the best and then work on tuning