5mm stroker with 88+mm bore?

[sjetrider]

I think he was riding the older 85mm cylinder, not the new 89+ cylinder. Not sure if there are any other differences in the cylinders besides cylinder bore and pistons used? But I talked to jack, and he said it wasnt bad, but thought comparable sized p/v motors were better.

I think I can build an ada for around $1600 cheaper than a dasa or xmetal all said and done, and since im currently running a stock flywheel, and pump...I could put that 1600 towards a total loss or tbm flywheel and tbm cone or maybe mag pump, that I wouldn't be able to afford right away if I went with the p/v cylinder.

So...now whats the better option, a dasa motor, or an ada with a more "complete package" (total loss, pump...ect) right now?

The old ADA Cylender and the new 89mm cyl are TOTALLY different. I have BOTH sitting in the garage and the port sizes in the cylender and the sleaves are WAY different. And the old style was not bad if it was ported propperly BTW. But it was not much different then a stock cylender when they get to your door from ADA. Unlike the new 89mm set up.
If you want no expense spared power then a flattop from Desa or a Chuckey motor is prolly better for you. If you want REAL NICE POWER at a right now budget as well as down the road budget, I think the old SeaDoo pistons are the way to go. Plentiful and cheap and LOTS of bores ahead too.

Guess I will find out if I am happy with the BUDGET BILLET BIG BORE soon enough. If Crankworx EVER ships my crank that is! 2 mos. and counting.

 

[MTRHEAD]

i just picked up this new ADA big bore billet cylinder. (customer brought in)

The ports are the lowest of any two stroke motor I've seen in 25 years of porting. I called ADA and told them and they understood but they said they wanted to make one - size fits all...ALL? geez...even at 10mm/133 stroker the timing is lamer than a 701 cylinder.

To get 120 duration on the transfers on a 5mil you have to RAISE the transfer ports in the sweet billet and sleeve over 5MM! this is criminal to cut that much on perfect billet.

Can anybody comment on what they run in this setup? Ex / Trans.

I feel like a criminal on the amount of money I need to charge to grind this thing to be as good as a properly ported OEM SJ cylinder.....

 

[masterblaster]

wow that is low,talk about a mission to grind out

 

[2XLR8]

If that engine runs good after you port it it will only make you prouder because of all the porting you did.
Sjetrider said on a previous post it was a piece of cake to build the ADA.
What takes longer doing the cylinder porting on the ADA or doing the case epoxy work and matching for the 90 mm DASA cylinder ?
I wonder what is considered a criminal charge?

 

[SUPERTUNE]

i just picked up this new ADA big bore billet cylinder. (customer brought in)

The ports are the lowest of any two stroke motor I've seen in 25 years of porting. I called ADA and told them and they understood but they said they wanted to make one - size fits all...ALL? geez...even at 10mm/133 stroker the timing is lamer than a 701 cylinder.

To get 120 duration on the transfers on a 5mil you have to RAISE the transfer ports in the sweet billet and sleeve over 5MM! this is criminal to cut that much on perfect billet.

Can anybody comment on what they run in this setup? Ex / Trans.

I feel like a criminal on the amount of money I need to charge to grind this thing to be as good as a properly ported OEM SJ cylinder.....

Yes, they are a bit of work.
I made a fixture for the mill that holds the sleeve, that will rotate and be able to machine both the top and the bottom of the port windows so after the sleeve is in the cylinder you mainly grind aluminum with a little bit of sleeve grinding to get your roof angle where you want it.

 

[MTRHEAD]

If that engine runs good after you port it it will only make you prouder because of all the porting you did.
Sjetrider said on a previous post it was a piece of cake to build the ADA.
What takes longer doing the cylinder porting on the ADA or doing the case epoxy work and matching for the 90 mm DASA cylinder ?
I wonder what is considered a criminal charge?

I would rather port TWO Lamey's and do the cases to match than this pc. Ask some one who has ported it themselves. Not paid a shop a bunch of money to port it for them. It would be awesome if the ports were at least 1/4" higher if not more.

 

[3rid]

I built a 900 ada last year, and yes it's quite a lot of work. Spent like 2 days on it, quite a few $ in machining to have it in a ready to use state...

Has been working fine since day one..

Nice quality, awesome customer service, in stock and less than 1500$ for a potential of 900cc and that includes head, domes and cylinder, girlde kit... can't really beat that...

 

[MTRHEAD]

Ok another issue. Sleeve is cut for the SEADOO pistons...the rear transfer windows will cover the ring end pins of the seadoo. The cylinder is cut for the YAMAHA ring pin location. What I mean is the wall on the rear transfer is in the OEM Yamaha location which is closer to the boose port than a SEADOO or Kawasaki. What does this mean? This equals sleeve does not match billet. So either you run ring pins through transfer windows if you opened up the sleeve to match the billet which seemed logical, Run less than optimum transfer window to wall relationship another words a huge void spot in the corner of the rear transfers, or putty/weld the rear wall up to match the sleeve and get the flow out.

I'm sure its because this cylinder was designed before the seadoo motor even came out. Sure would be nice if ADA tapered the billet inwards to match the rear window of the sleeve!!!!

So what are the shops doing? Anybody got a cylinder done at one of the shops? post a picture and lets see if they did anything??

 

[MTRHEAD]

Here is a picture showing the issue. The sleeve widow is only opened this far so it covers the end of the rings pins on the SEADOO piston. Please note the white dotted line is where the billet is under the sleeve. The sleeve opening should match the billet and shoot the charge towards the exhaust port for low end hit. This is a 4-5mm mismatch! The white dotted line runs parallel to the boost port..the photo is skeewed and the dotted line is just a reference.

 

[SUPERTUNE]

Yes, I ran into the same problem, fill the corner of the cylinder port wall with JB weld and don't port the inside of port wall to let the ring end gap out into the primary port.

 

[MTRHEAD]

thank you for coming forward and also stating you found this issue.

 

[sjetrider]

If that engine runs good after you port it it will only make you prouder because of all the porting you did.
Sjetrider said on a previous post it was a piece of cake to build the ADA.
What takes longer doing the cylinder porting on the ADA or doing the case epoxy work and matching for the 90 mm DASA cylinder ?
I wonder what is considered a criminal charge?

I never said it was a cake walk. The difference in the case work referenced the 5 mil. vrs. an 8 mill or 10 mill. The cases still have to be port matched and epoxied for the ADA.

MTRHEAD is 100% correct. ADA is a freakn blank that requires WAY too much porting (especially for a 5 mil.). For an 8 mil. its a little less but still ALOT. ADA has one thing going for them. They are on the shelf ready to ship and CHEAP. Beleive me, they have NO Tech support in regards to this cylender. You will be charged more by ANY builder to port this cylinder than any other cylinder out there.

Had I known Chuckey had experience with the ADA cylinder I would have called him before buying one. I am not saying I would not have bought it now, but I would have known in advance the extra port work required. ADA has no interest in these cylinders. They dont care to make them better or to listen to the customer on them at all. They offer no suggestion or reason.

 

[Matt_E]

You will be charged more by ANY builder to port this cylinder than any other cylinder out there.

Sure about that?

 

[sjetrider]

Yes, I ran into the same problem, fill the corner of the cylinder port wall with JB weld and don't port the inside of port wall to let the ring end gap out into the primary port.

We left the port narrow enough to cover the ring gap and did not fill the corner at all. I assume there will be some power loss there. Do you see any other potential issue there?

It would be nice if ADA had someone interested in the Jet Ski industry and were will ing to make some easy changes to thier cad set up that would make it alot easier for the person porting. I assume they look at it as buy they cylinder CHEAP and suffer through the added porting costs. Not sure which is the greater evil.

Road Tricky's X-Scream 8mil this weekend Chuckey. INCREDIBLE. Between you 2 that thing is a freakn monster! Made me wish I spent the $$$$$ LOL. The ADA 904 runs good and I am happy with the results, but it is not an x-scream stroker and I didnt think it would be.

 

[Big Kahuna]

I see you made it home!!!!!!!!!!!!!!

Oh, I got your voicemail this morning.

 

[sjetrider]

yep, rough day yesterday BK LOL, thanks for offering the help.

 

[sjetrider]

You know a good builder that likes lots of extra grinding and porting enough to spend lots of extra time on this cylinder vrs. any other I have seen? or ya just bumping your post count? Please share.

 

[Matt_E]

or ya just bumping your post count?

Bumping post count. What else do I ever do? It's not like I ride or anything like that.

 

[SUPERTUNE]

I've been waiting to hear how Tricky's was running! He's got all of the same goodies as the XS1000 but in a 8mm package with a different port/deck height cylinder.

 

[2XLR8]

You know a good builder that likes lots of extra grinding and porting enough to spend lots of extra time on this cylinder vrs. any other I have seen? or ya just bumping your post count? Please share.

I dont think the ADA it is that bad for 1500.00 Heck, I have heard of shops charging 1500.00 for a 771 cc resleeve with pistons. That is with you supplying the used cylinder and you still have to buy a cylinder head. Just ask some of the engine builders mentioned in this forum and you will see at least one quoting at that.