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BFB
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PostPosted: Tue Jul 27, 2021 6:16 pm    Post subject: Re: water / meth injection discussion... Reply with quote

i recon im about a month late but just been busy.
so someone said water doesn't burn, but how far does the heat or combustion break down the water? if it doesnt at all then sure, water to steam yata yata but if it does truly break it down or at least some of it then youd be adding hydrogen and oxygen to your fuel mix, which might affect burn a little..
anyone know for sure?
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PostPosted: Wed Jul 28, 2021 3:42 am    Post subject: Re: water / meth injection discussion... Reply with quote

P.F.M. : pure fuckin Magic Laughing
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PostPosted: Wed Jul 28, 2021 7:43 am    Post subject: Re: water / meth injection discussion... Reply with quote

richardcraineum wrote:
i recon im about a month late but just been busy.
so someone said water doesn't burn, but how far does the heat or combustion break down the water? if it doesnt at all then sure, water to steam yata yata but if it does truly break it down or at least some of it then youd be adding hydrogen and oxygen to your fuel mix, which might affect burn a little..
anyone know for sure?

The same thought has crossed my mind too. The usual way to split water into O2 and H2 is to apply electricity. Would heat do it? I don't know...
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PostPosted: Wed Jul 28, 2021 8:27 am    Post subject: Re: water / meth injection discussion... Reply with quote

oprn wrote:

The same thought has crossed my mind too. The usual way to split water into O2 and H2 is to apply electricity. Would heat do it? I don't know...


considering water is the product of H2 and O2 combustion I doubt it.

Any one watch the Richard Holdner video testing non intercooled, water/meth injection vs intercooling? They didn't see any improvement in power with water/meth over a non intercooled engine.
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PostPosted: Wed Jul 28, 2021 8:48 am    Post subject: Re: water / meth injection discussion... Reply with quote

HotStreetVw wrote:
They didn't see any improvement in power with water/meth over a non intercooled engine.

That seems odd as an engine with no water injection and no intercooling could not possibly make as much power before detonation occurs.
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PostPosted: Wed Jul 28, 2021 10:21 am    Post subject: Re: water / meth injection discussion... Reply with quote

oprn wrote:
HotStreetVw wrote:
They didn't see any improvement in power with water/meth over a non intercooled engine.

That seems odd as an engine with no water injection and no intercooling could not possibly make as much power before detonation occurs.


these guys are pretty respectable.

https://www.youtube.com/watch?v=eUv_TYT-E-E

in the comments they say the timing is left the same. Maybe if you start leaning on it you can find more power. Pretty evident though an intercooler is far more efficient than water/meth.
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PostPosted: Wed Jul 28, 2021 11:02 am    Post subject: Re: water / meth injection discussion... Reply with quote

I think for NA applications, HIGH compression race motors COULD benefit from water/meth injection. But who builds high compression motors to drive on the street (without SS pistons)? VP C12 on the track for NA anywho.. .
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PostPosted: Wed Jul 28, 2021 11:06 am    Post subject: Re: water / meth injection discussion... Reply with quote

The old tractors benefited and many of them were only 5/1 CR.
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PostPosted: Wed Jul 28, 2021 11:06 am    Post subject: Re: water / meth injection discussion... Reply with quote

oprn wrote:
The old tractors benefited and many of them were only 5/1 CR.


But again, you're not driving a tractor to get groceries Wink
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PostPosted: Wed Jul 28, 2021 11:13 am    Post subject: Re: water / meth injection discussion... Reply with quote

Not yet anyway...

To say that it doesn't benefit low compression engines is not really correct it just benefits them much less. As to whether or not it's worth the effort - that's an individual call based on many variables.
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PostPosted: Wed Jul 28, 2021 11:25 am    Post subject: Re: water / meth injection discussion... Reply with quote

I'm not a professional tractor driver, but I did stay at a Holiday Inn Express. Smile
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PostPosted: Wed Jul 28, 2021 4:32 pm    Post subject: Re: water / meth injection discussion... Reply with quote

as far as no benefits to n/a engines, i have no experience. hell i actually only have experience with wi on just one boosted engine.. but regardless..
even if wi on n/a had no performance gains ive read that the wi cleans the hell out of the cylinders and can have virtually no carbon build up on engines torn down that have run wi. but again, i dont know
but that'd be a benefit
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Forced induction can overcome a lot of obsticles that gets in it's way
"You are the Engineer and the Mechanic.  
Build it your way not the way someone else does it. Their way might not work for you." - clonebug
An interesting thing happens in forums where everyone starts parroting the same thing and "common knowledge" takes over.
“ The monkey see monkey do mentality seems to run deep in VW people. "Gene Berg said it was so 30 years ago so thats the way it is" “ - bdkw1
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PostPosted: Wed Jul 28, 2021 6:18 pm    Post subject: Re: water / meth injection discussion... Reply with quote

https://m.youtube.com/watch?v=_M4C_6cTDEg
Dyno proof .
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PostPosted: Wed Jul 28, 2021 6:49 pm    Post subject: Re: water / meth injection discussion... Reply with quote

Wreck wrote:
https://m.youtube.com/watch?v=_M4C_6cTDEg
Dyno proof .


That video is just an advertisement for Snow Performance..........Just slightly biased.
I'd do a little more research before coming to a conclusion.

I wonder what the race gas would do with the timing advanced.......
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Paul.H wrote:
That one line on that chart is probably better info than you can get from this place in a month



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PostPosted: Wed Jul 28, 2021 6:54 pm    Post subject: Re: water / meth injection discussion... Reply with quote

Wreck wrote:
https://m.youtube.com/watch?v=_M4C_6cTDEg
Dyno proof .


Those guys arnt trying to sell anything…. The video I shared was Richard Holdner and Westech. Pretty reliable, not trying to sell snow performance.

It very well can add power in certain situations, it’s just not a replacement for an intercooler.
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PostPosted: Wed Jul 28, 2021 6:56 pm    Post subject: Re: water / meth injection discussion... Reply with quote

Clonebug spotted the “this segment paid for by snow performance” lol
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PostPosted: Wed Jul 28, 2021 7:20 pm    Post subject: Re: water / meth injection discussion... Reply with quote

Another clip . https://m.youtube.com/watch?v=cJAwiyhDLLk
It would be nice if Richard Holdner did a video on an NA then boosted engine with nozzles in the runners to get good even atomisation , he does great videos .
I realise Snow are selling a product . I have first hand experience of it helping CHT’s and pinging on an NA engine . It needs to be tuned like anything else .
Meth also has more oxygen than pump unleaded , does the water atomise and burn as hydrogen and oxygen , I don’t know .
But each to there own opinion and experience.
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PostPosted: Wed Jul 28, 2021 7:36 pm    Post subject: Re: water / meth injection discussion... Reply with quote

Wreck wrote:
does the water atomise and burn as hydrogen and oxygen , I don’t know .
But each to there own opinion and experience.


No opinion, this does not happen.
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PostPosted: Wed Jul 28, 2021 8:22 pm    Post subject: Re: water / meth injection discussion... Reply with quote

RB Racing has a link on their website about Water Injection....it's a long read and if you are interested enough you can look it up.
They have been racing Motorcycles at Bonneville since the 70's......there are even links to the articles using W/I on WW2 aircraft both Axis and Allies.
there is lot's of info packed in there. I based my wiring and activation on one of their diagrams and it has worked well for me removing 100 degrees of inlet temps.
They even talk about all the W/I experts that sell systems to the general public.

I built my own just like RB recommends and it cost about $200.00 at that time in 2013.

Although......as they said....Hobbes switches have gone up considerably in price.

For a good system covering a wide range of boost I recommend two nozzles, two Hobbes and two solenoids for better control. Those alone will cost you around $150.00 or more.
A tank, hose, fittings and a pump will be another $175.00 or more if you buy the high pressure 300# pump.
A cheap 8500 series pump can be had for around $75.00...well in 2013 it was.

I happen to have a used one I'll sell for $50.00 plus shipping. I upgraded to the 300# pump but really didn't notice much improvement so can't say it was worth the extra money.
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vwracerdave wrote:

Take a good long look in the mirror and report back on what you see.


Paul.H wrote:
That one line on that chart is probably better info than you can get from this place in a month



My Megasquirt Fuel Injection Turbo Buggy Build
Water/Alcohol Injection
Audi TT intercooler
Upgraded to MS3Pro-Evo
EcuMaster PMU16
ECUMaster ADU5 Digital Dash


http://www.shoptalkforums.com/viewtopic.php?f=3&t=127936
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PostPosted: Thu Jul 29, 2021 2:30 am    Post subject: Re: water / meth injection discussion... Reply with quote

that RB page is an interesting read .
Where I get the most effect from NA WI is cooling . Full load WOT at 3500rpm , being able to maintain CHT's around 175C at high ambient temps indefinitely is worth the hassle to set it up . I'm surprised more bus owners in hot countries don't look into it. By the interest in the new fan on the market I'm guessing some people are having CHT issues .

Totally agree it's not a power adder just by itself but allowing different timing etc , changes that .
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