Surfriding 950DASA 8mil stroke vs ET967 SS?

^^^^^^^^^ 155 at least....... I don't care what anyone says. More water you move, the more thrust you will have no matter what engine is spinning it!

Obviously you can't put a 155 in an fx1 or a hull with intake tunnel made for 144.
 

Crehderman

ClitterHitterMotorsports
Location
Oregon
I ran a 967 for the last year in my reaper, ran a lay down pipe and a b pipe, 148 mag pump, and I thought it was plenty in the surf, just dropped in a dasa 1000 10 mil and it’s crazy at sea level, way more than necessary, but it’s fun. Lol
 
Location
nj
50 hours is roughly 200 gallons? Can everyone agree on that? For a surf ski where your beating the piss out of it that number seems fair. Look at how many engines move enough to hit the bottom of the hull. The stress is way worse on the coupler. The force on the entire driveline is actually pretty crazy. Not to mention treched cases are weaker so there s alot of flex in the motor itself.

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50 hours is roughly 200 gallons? Can everyone agree on that? For a surf ski where your beating the piss out of it that number seems fair. Look at how many engines move enough to hit the bottom of the hull. The stress is way worse on the coupler. The force on the entire driveline is actually pretty crazy. Not to mention treched cases are weaker so there s alot of flex in the motor itself.

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4.5 gal per hour so about there 225gal per 50gal with 50mm carbs
 
Location
ON
Well, I chime in on this one. Art called me first, I didn't know who he was. He told me about his exhaust manifold project (he was so concered it would be copied and now I now why his concern,-------------------- its what he does) ----and then that he is making a cylinder for his son "just five of them" (I was stupid and answered questions" then lead into " how does your cylinder design work?" He called me often for about two months (take me to court and we'll get phone records) asking how jetski engines work. Yes he has an understanding of two strokes but not jetski's. While he was doing his dyno runs he finally asked " what are your port timings?" he was so far off, probly because he was using a porting program because he doesn't know jetski's. He then called me back a few days later to tell me how much better his engine ran. YES, all he does is copy others work and effort. He did the same thing to Zack at PHP, at least Kyle at DASA told him to go buy a cylinder and get it from there. Art, got his 967 and 1107 from me when he shook my hand, looked me in the eye and said " its ok, you can show me I'm not getting into this business" (I have a witness)
LYING sack of SH*****T. Apparently he did the same thing in the snowmobile world but at least those guys drag race and a weak engine is soon discovered. He couldn't even keep his hp numbers straight when he was telling me what his stuff was doing. (I remember hp and duration numbers really well for some strange reason)

He has copied Dasa, PHP, FS (or tried) ( you sure you want to buy carbs from a guy who a couple of months ago was calling Ed to ask how carbs work), XS and me. Non of his designs are his, he doesn't know enough about what makes a good jetski engine. He does the con-man thing to where he talks to you as a peer and enthusiast and explains his theory on how things work then waits for you to give him your insight, and whala, it shows up in his next product. The good news is he only make a cheap copy that doesn't make it to the top tier. Go ahead and call him for specific setup on an engine, hull, pipe, carb, exhaust. You'll get a blow-off answer. He won't make anything at the best level until someone else builds it first.
I don't give a crap if you don't like my post, its all true, call Zack at PHP, don't bother Kyle, he's too busy but you'll get the same.
His 967 made 144 hp at 7800 rpm, joke! A good 785 superstock back in the day was at 142 - 145hp.
A 967 can't pull what a 964 Dasa will pull, in fact the 964 will pull just about what an 1107 pulls. You get what you pay for. I understand this stuff isn't cheap but pay cheap and you get cheap.
So if you have a specific budget, I get it, but don't confuse. Its like driving a car set up for true track use and some guy puts on wings and big tires then tells you he's a racer too, sure buddy, LOL.
There are a few guys on this forum and fb who post their opinions as if its fact. Where will they be at WF? Most likely not on the beach with the pro's, so why do you listen to them?
I can tell you that some pro's will be looking for Phil Clemmons, Paul Lehr.
Art you can come on here and deny all I've said but you are what you are. I may sound bitter but I don't care about that anymore, but what I've stated is what I've experienced and know. Oh and here's a quote I'll never forget from Art, "I love screwing up markets to prove I can, its kind of a hobby of mine" This is the guy you want to support.
There are a few really knowledgeable people on this forum but they are drown out by the bs noise.

Hi Eric From what i remember the first time we met was at Havasu. You came to my booth 5 or so years ago and looked at my 1160 Sled and a 1107 SJ Cylinder that was just roughed out.. You said call me let's talk about engines some time. Have been manufacturing billet cylinders for 16 years just not all watercraft. I do enjoy making things so it's kind a hobby! As for the call to Ed it was about ordering thicker custom reeds for a rad valve for my SJ 1200 supercharger project from what i remember. ET Billet 52mm carbs don"t stir any market. I made them cause My 1200 needed more air and sell as a package that's all. Not trying to start anything on here or with you or anyone but there 2 sides to each story.
 
Hi Eric From what i remember the first time we met was at Havasu. You came to my booth 5 or so years ago and looked at my 1160 Sled and a 1107 SJ Cylinder that was just roughed out.. You said call me let's talk about engines some time. Have been manufacturing billet cylinders for 16 years just not all watercraft. I do enjoy making things so it's kind a hobby! As for the call to Ed it was about ordering thicker custom reeds for a rad valve for my SJ 1200 supercharger project from what i remember. ET Billet 52mm carbs don"t stir any market. I made them cause My 1200 needed more air and sell as a package that's all. Not trying to start anything on here or with you or anyone but there 2 sides to each story.

Thanks for your valuable input to the thread.
 
Still did not hear first hand opinion if there is an equivalent engine to DASA 950cc 8mil with similar powerband? There is DASA 950cc 8mil which hits hard on bottom end (much snappier than 950 stock stroke) and maintains smooth, linear powerband all the way trough. This imo is ideal for surf application where surf is small and hull is heavy. Downfall is ADR stroker crank proven to be very weak and unreliable in salt conditions on regular basis. ADR is also no longer making new cranks so crankworks billet for $1500 is the only option. Then we have ET 967 stock stroke made by gentleman in Canada. Few fellow riders admited it will not hit as hard as stroker DASA and parts are a bit tough deal since its made in Canada no local distribution. Then we have PHP, I dont know if they make mild stroker version over 900cc? And finally we have HPE with nicasil coated cylinder walls, I am a bit hesitant on that part when ski is being ridden in the surf and drinking salty cocktails is inevitable.
 
Location
nj
Its tpe. You need to ride different setups in different skis. Honestly this is the worst place to come for advice. We've done about 10 php 4mils in our group and the have all held up awesome. Had an 1105 tpe with a php lightweight crank no problems. Had tons of tpe 964ss some with adr some with stock rebuilt no issues. Try a stock stroke with a lay down wetpipe. Nikasil is very very durable I'm not an expert but I don't think sucking in fresh or saltwater is going to have an effect on it. Buy another 8mil while there available and swap it every 40 hours
Still did not hear first hand opinion if there is an equivalent engine to DASA 950cc 8mil with similar powerband? There is DASA 950cc 8mil which hits hard on bottom end (much snappier than 950 stock stroke) and maintains smooth, linear powerband all the way trough. This imo is ideal for surf application where surf is small and hull is heavy. Downfall is ADR stroker crank proven to be very weak and unreliable in salt conditions on regular basis. ADR is also no longer making new cranks so crankworks billet for $1500 is the only option. Then we have ET 967 stock stroke made by gentleman in Canada. Few fellow riders admited it will not hit as hard as stroker DASA and parts are a bit tough deal since its made in Canada no local distribution. Then we have PHP, I dont know if they make mild stroker version over 900cc? And finally we have HPE with nicasil coated cylinder walls, I am a bit hesitant on that part when ski is being ridden in the surf and drinking salty cocktails is inevitable.

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Big Kahuna

Administrator
Location
Tuscaloosa, AL
Honestly, it does not matter who makes the cylinder or what crank is used. If your port timing is not set right all you have is a crappy running motor. Does not matter if it's a TPE, PHP, ET or DASA. Is every single cylinder ported exactly the same? Or has it been custom setup for your setup. What about your ignition setup? Carb size? Carb type? There are so many variables. It is not A vs B
 
Honestly, it does not matter who makes the cylinder or what crank is used. If your port timing is not set right all you have is a crappy running motor. Does not matter if it's a TPE, PHP, ET or DASA. Is every single cylinder ported exactly the same? Or has it been custom setup for your setup. What about your ignition setup? Carb size? Carb type? There are so many variables. It is not A vs B

Been waiting for someone to straighten this out! Thanks BK


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Honestly, it does not matter who makes the cylinder or what crank is used. If your port timing is not set right all you have is a crappy running motor. Does not matter if it's a TPE, PHP, ET or DASA. Is every single cylinder ported exactly the same? Or has it been custom setup for your setup. What about your ignition setup? Carb size? Carb type? There are so many variables. It is not A vs B
To me it is exactly down to A and B. 50mil carbs although I would go down to 46s. Bpipe, msd enhancer, 148 pump. I dont like lay down pipes for surf. When dasa is running it has amazing power with that exact setup.
 
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