Why don't I ever see dyno's?

[xzibit a]

If I am remembering you could buy typically 2 chambers, a low rev and a high rev or something like that. Moved the powerband some. Also you can play with your sprocket size just like we do props.

right I would change sprockets depending on the track I was riding but I didn't have to retune my motor. with the pumps, you have different intake grates that load the pump differently, you can adjust the spacing on the prop, you can change stator sections, overall pump diameter, different size cones, different reduction nozzle bores, and steering nozzle sizes. it all affects the efficiency. Way harder than sprockets and tire pressure.

 

[bored&stroked]

Jace said it best. His finger is the best testing tool on the market. when he rides a ski it either feels good or it doesn't.

If you have access to lots of different setup skis to ride or have lots of disposable income to buy and test parts to see if you like them then that way works very well. Not many people have that ability, therefor we need something to show us what we are buying, hence the question of why I don't see dynos. At this point the question has been answered.

 

[h2odesperado]

Isn't anyone just curious what the output of these liter motors are? I just wanna see some big numbers!!

Sent from my Nexus 7 using Tapatalk

 

[Quinc]

Isn't anyone just curious what the output of these liter motors are? I just wanna see some big numbers!!

Sent from my Nexus 7 using Tapatalk

Tim posted some numbers up in another thread and they where all well below 200. =/

 

[masterblaster]

So if I read this right you expect a pipe builder to go out and buy 45-60k of available motors and figure out how to tune every one to show people how they work and how to set them up??

Tim dont take this the wrong way or the defensive side of it.The v2 sounds like a great pipe.You are doing great things for the sport,not knocking that.This thread is really more about motors and bolt on parts than specifically pipe design.But since you mentioned it,IT would be very nice to see the v2 charted against the pfp since you can pretty much consider a pfp a stock pipe in the freestyle world. You know as well as I no one expects any pipe or engine builder to buy all the setups. Riders come to you willingly for free with all sorts of setups to test against ,you didnt have to buy any of those setups you currently tested on? Why not put up a torque chart of the improvement of this pipe vs their old pipe at the very least. especially since you have access to these setups and a dyno. The real question isnt if its better,its how much better and where in the range is it better? I look forward to seeing your other post come true about seeing #s on those in the spring,hope they are charts and not hollow #s. Pipe market is about to blow up in oct at wf
Fmf has used their dyno for many types comparisons,pipes and motors,so has every other motorsport other than skis,but really up until recently their wasnt much need for it in freestyle market,There were only a couple ski motor manufactures and one pipe,the pfp. Now there are many,for motors and pipes.It makes sense to have have torque charts if you really believe your better than the competition. Here is some work done on fmf dyno of there pipe on all 5 brands bike motors,and another with their pipe vs the top competitors. all facts>hype=more sales

Anyone can read a dyno chart and apply it to their riding type and skill,I dont understand the above posts at all beating the dead horse of its complicated and none of us can get a pump to hook up or be sim to dyno load with out spoon feeding from builder?I assume they didnt read the link,much more than a couple type pipes and values for use of a dyno chart.

 

[WILKEY]

http://www.nzefi.com/jet-boat-dyno/

Not sure if anyone has posted or seen this. I thought it was fn awesome.

 

[tntsuperjet]

MB, I don't put any customers motors on the dyno that are not mine.
Most people don't want there motor beat up on a dyno.
All the dyno runs I will post will be our motor and our pipe.
Unless someone sends me a DASA or other to dyno and willing to post the results.

Here a statement for you who think dyno gonna help you.
I soent 2 weeks plus on the dyno with water injection on a dry pipe on the dyno.
Got 26LB FT of torque gain by multi port water injection.
Water testing proved it to be a total joke. Absolutely didn't improve anywhere and killed it in a few places.
Because there isn't enough pump load to Mach the dyno load and the dyno sweep it much slower trying the. A pump load and the pipe never could dry up and get hot fast enough in the water.
I spent months on the water trying to get that extra torque to work and finally had to accept defeat.

 

[kevbo]

Yep, we need good BMEP for 3000rpm, not astronomical numbers for 300.

 

[masterblaster]

Wilkey. that's a nice new type dyno. there's one SIM posted in this thread with yami pump adapters up to 250 hp

tnt. guys would deff let u dyno their setup especially when your helping them make more power. hiro deff has the multiport injection dialed on his dasa setup and mod pipe. getting a dyno that could load closer to the pump load would be most important to accurately charting a fast reving freestyle setup wet pipe. no it won't be perfect but neither is load on a motox pipe in the link. put 3 wetpipes on a dyno with same water pressure and each suffers same disadvantage but one will still be better. all 3 will no doubt still need changes in water and ign setup with further water tuning.
we are discussing what Chuck proposed with dyno testing multi motors at a free ride with a pfp dry pipe. much less complex than a multi port wet pipe obviously. Art at et has already posted dyno hp gains with most other bolt on parts with less variables. I was impressed by the diff in torque gained at multi places in the rpm curve by small changes to the billet exh mani he built. do you have similar results for your billet mani you have priced in the v2 thread? when you say your or our motor setups what setup are you referring to ? your sponsored riders coung and lawlors dasa 1000s ?

Kev comparing torque capacity for a given setup in the useable rpm power range would be nice to see huh.

 

[Quinc]

http://www.dynomitedynamometer.com/dyno-tech-talk/water_tanks.htm

 

[tntsuperjet]

I have not put any of my sponsored riders motors on our dyno.
They are DASA sponsored engines and what's in them belongs to DASA. It's not my place to dyno there stuff.
Coung has let us use his boat for fitment and water testing and I have done 4 days work to his boat to dial it in for testing.
Also find the dyno useful for engine combo setups.
But Hiro is using a wet pipe with multi port water injection and if you ask him he found 90% of that setup on the water.

 

[masterblaster]

most riders own their motors and would be happy to dyno them to find some more torque. a manufacture should have no issue with this or a sponsored one for that matter.4 days tuning time on a 1000 done by someone as skilled and knowledgeable as yourself is a long way from a 1000 put together with generic specs. most every cali surf boat I rode at wf and other freerides felt like. hmmm well let's just say they started and ran but their was plenty power left on the table to unleash for the given cc used. I would expect one tuned by you for 4 days to come around on a flip much better if it had a 650 pipe in it. jj but close to it
So what motor are you referring to when u say our motor setups on the dyno ?

I'd expect a multi port injected pipe to need plenty water tuning but I'm sure they started with more than one diffuser belly and baffle stage on the dyno for their motor setup. their pipe water setup looks like geo thermal water works

 

[Jetfiend]

Tim dont take this the wrong way or the defensive side of it.The v2 sounds like a great pipe.You are doing great things for the sport,not knocking that.This thread is really more about motors and bolt on parts than specifically pipe design.But since you mentioned it,IT would be very nice to see the v2 charted against the pfp since you can pretty much consider a pfp a stock pipe in the freestyle world. You know as well as I no one expects any pipe or engine builder to buy all the setups. Riders come to you willingly for free with all sorts of setups to test against ,you didnt have to buy any of those setups you currently tested on? Why not put up a torque chart of the improvement of this pipe vs their old pipe at the very least. especially since you have access to these setups and a dyno. The real question isnt if its better,its how much better and where in the range is it better? I look forward to seeing your other post come true about seeing #s on those in the spring,hope they are charts and not hollow #s. Pipe market is about to blow up in oct at wf
Fmf has used their dyno for many types comparisons,pipes and motors,so has every other motorsport other than skis,but really up until recently their wasnt much need for it in freestyle market,There were only a couple ski motor manufactures and one pipe,the pfp. Now there are many,for motors and pipes.It makes sense to have have torque charts if you really believe your better than the competition. Here is some work done on fmf dyno of there pipe on all 5 brands bike motors,and another with their pipe vs the top competitors. all facts>hype=more sales

Anyone can read a dyno chart and apply it to their riding type and skill,I dont understand the above posts at all beating the dead horse of its complicated and none of us can get a pump to hook up or be sim to dyno load with out spoon feeding from builder?I assume they didnt read the link,much more than a couple type pipes and values for use of a dyno chart.

MB, don't take this the wrong way, but

 

[Vumad]

What about a test pool with a flow gauge. A pool 8-9 feet long and 2 feet deep, the nozzle connects to an outlet with an inline flow and psi gauge, and its plummed into a loop that puts the outlet at the front of the boat creating a swim spaw poweredby the boat so the pump can benefit from the loading. Graph a chart based on gpm and psi related to rpm.

It may not be an exact science, but if the bow stop was adjustable, it could be ran anywhere, anytime. Put it on big wheels, like built into a trailer, and you could tow it empty, back it in at the ramp at an event and let it fill up with event water.

Read rpm like a tiny tach or hardline does, and have an adjustable attachment for the nozzle, bring to any freeride event.

One of you geniuses have the time, money and knowhow to come up with something good.

 

[masterblaster]

well u see I got this ski lol I just appreciate a good curve plot

 

[Vumad]

 

[tntsuperjet]

You don t need a pile of parts and money to test. 95% of the boats I hear and ride. More then 95% I have ridden and hear running can benefit from tuning.
You all want bragging numbers and most of you struggle to get s boat tuned to its potential.
Give a true test.
How many people here can honestly say your boat will jump to a plane at 1/8-1/4 throttle and do it clean and quick. Like a stock boat at half throttle.

 

[tshank123]

Hey Tim. I'm glad you take the time to try and educate people, whether they want to hear it or not. I talked to you for a while at finals last year and I got a lot of info from you. Thanks!

 

[WB1994]

How many people here can honestly say your boat will jump to a plane at 1/8-1/4 throttle and do it clean and quick. Like a stock boat at half throttle.

Thats 95% of people who ride. Its funny to hear people talk about thier dasa this and xscream that and then they ride a well tuned 701 and you have to pop your hood to prove it. I think most people are just curious about dyno numbers. I dont think its about bragging.

 

[Quinc]

You don t need a pile of parts and money to test. 95% of the boats I hear and ride. More then 95% I have ridden and hear running can benefit from tuning.
You all want bragging numbers and most of you struggle to get s boat tuned to its potential.
Give a true test.
How many people here can honestly say your boat will jump to a plane at 1/8-1/4 throttle and do it clean and quick. Like a stock boat at half throttle.

I can! =) I also play with my jetting/pop-off/water temps/bpipe screws/ etc every trip to see if I can make it better though...