water injection anyone ?

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toneh
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Post Sun Dec 30, 2007 9:22 pm

having just gone down the turbo route i,m looking into various options including m/s for fuelling and knock issues

i,ve just picked up an aquamist water injection set up and after chatting to some folks running it on mainly jap cars they said that its got alot of benefits for anti knock & to add a little more fueling (depending on methanol/water mix)

wondering if any of you chaps are using it on e30,s

cant see a downside myself :D
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Yaninnya
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Post Mon Dec 31, 2007 2:01 am

Another myth. Just use proper IC.
Jan
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toneh
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Post Mon Dec 31, 2007 8:10 am

what do you mean myth ? what do you mean by use proper ic ,do you mean inter cooler ? think u might be getting confused with cooling spray on to your intercooler
i mean direct injection into inlet ports
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Post Wed Jan 02, 2008 3:47 am

Do you know why they use water injection directly into the ports ?
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Post Wed Jan 02, 2008 8:56 am

march109
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Post Wed Jan 02, 2008 11:38 am

Hey as I read your post I get the impression you have a turbo but no management and are experoencing knock issues, before I spent my money on the mist kit I'd have sorted your management issue which would probably stop the knock straight away.

The mist kit work by raising the octane of the fuel air mixture in the cylinders, raising the octane makes the fuel harder to ignite, running forced induction pressurises the air in cylinders, and when you compres air it heats up and thus the engine is running hotter. So by making the fuel harder to ignite you avoid the pre detonation (or pinking) when the all that extra heat ignites the fuel instead of the spark plug.

I think Jan means if you ran a better inter cooler setup then the compresed air would not be as hot anyway and you would not need the mist kit, however I know Jap cars that need mist kits because they run silly boost and just don't have the space for large IC's, The mist kits do have one mahussive downside, when the methanol/water mix runs out or ou mix it wrong it no longer works as it should, if you then hoof it you will very quickley loose your engine with a massive bang, at least an IC doesn't need to be consistantly topped up.

Mist kits can also operate off the management system (so only works when really pushing it) or just have a toggle switch in the cockpit to turn it off and on, in reality though an IC is a better solution for a road car not putting down silly bhp.
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toneh
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Post Wed Jan 02, 2008 10:55 pm

thanks for the lesson i dont need (already post on aquamist ) a few points if you read my original thread (looking at m/s for fuelling and knock issues) also if you got the aquamist kit for what i did you would have got it even if for resale ? got a decent intercooler on already cant go much bigger without a crappy fibreglass bumper/spoiler no havnt got knock issues yet not up and running (swapping all gear into new shell) you dont let it run out of water/meth put a level sender on (would you let you car run out of oil) and theres no way you can operate a w/i system off a toggle switch (no thanks to guesswork) run it off the ecu or a pressure switch !

back to my original question is anyone using it on an e30 ?
march109
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Post Wed Jan 02, 2008 11:10 pm

well toneh if your grammer and punctuation was better than a poor GCSE student then I wouldn't have read ;
having just gone down the turbo route i,m looking into various options including m/s for fuelling and knock issues
If I am not correct that states you have fueling and knock issues, or at least that is what an educated person reads when they see those words in that sentence and context as you have written it. You state I should have read your original post seems I have and you haven't.

Get your head out of your ass.

Oh and by the way ;
you dont let it run out of water/meth put a level sender on (would you let you car run out of oil)
Thats a question there should be a question mark - here you go it looks like this ? for future reference, and in answer to your question; I wouldn't let my car run out of oil no, but not because my car has a level sender in the sump because it doesn't, the same as all e30's it has a low pressure sender and if this lights up I should have checked the oil long ago or there is another problem. :D
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toneh
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Post Wed Jan 02, 2008 11:40 pm

ha ha level sender or pressure they would still tell you important information obout impending damage !

gcse or otherwise i'm not (experoencing mahussive) spelling problems ?

may i sugest you stick your head back up your ass and stop replying to threads you seem to know very little about :D
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Post Wed Jan 02, 2008 11:45 pm

FYI I have seen a simple toggle switch (or at least combination of them) operate water injection on at least one home made system and have read of but not seen it in use on a few other installs too.

The control system used had the first toggle for manual, automatic or off, in the off postition the system could be tested with no spraying. The second toggle controls a 12V water solenoid this activates an additional nozzle to spray in tandem with the main nozzle. a further electronic button activated the proportional controller, that regulated the duty cycle of the pump which starts to spray at 2PSI and continues to increase the duty cycle to full on when you reach 5PSI. The system lets you adjust both the "start" point of spray and at what PSI point you are going to be at full spray. :up:

However this wasn't on a E30, it was actually Leon Cupra R :o:
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toneh
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Post Wed Jan 02, 2008 11:55 pm

spelling mistakes or otherwise what is on bill's uncle's hamster's sister's ford escort is of NO INTEREST TO ME WHATSOEVER !


HAS ANYONE GOT WATER INJECTION ON A BMW E30 :cry:
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Brianmoooore
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Post Thu Jan 03, 2008 12:21 am

toneh - you seem to have a little bit of an attitude problem, which will not aid you in getting help on this forum.
March109 is a respected and knowledgeable member of this site, and since no one had replied to your direct question in three days, was offering you some relevant information.
Note that ENGLISH is a requirement for posting on this site - including spelling, grammar, punctuation and capitalisation!
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toneh
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Post Thu Jan 03, 2008 1:14 am

isnt it strange when you start posting on forums (behind a username) to be honest i,m not a very computer literate type of person or one thats into pc based chat ,ive asked a couple of simple questions in previous posts which have help me out in a hurry but nothing i couldn,t have solved my self given a little longer so addmitted it can be helpfull at times,but to me it,s a false reality,out at the meets and shows people can express themselves through various means ,but one main thing that draws people for a chat is your car ,hell thats why we go,i,ve always thought to judge someone through a forum chat is not to wise because how people come across can be so different to when you meet in person,you wouldn,t pick up on there grammer a stand there and correct the way they speak,would you, i,ll will be attending various meets and shows this year and no doubt meeting some who post on this site ,i already do and i dont think they even know , to be fair you dont know my attitude,i know without a shadow of doubt i,m not at all like you think, its a shame but forums just arn,t for me so i wont be posting on this site ,its not dummy out of pram time ,its just i,d rather speak to real people have a laugh and show my car ,not just talk about how great it is through a key board ,we can all do that can,t we :D
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Brianmoooore
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Post Thu Jan 03, 2008 1:31 am

Suit yourself! What's computer literacy got to do with posting in readable English? It's hard going trying to make sense of your last post.
Surely you know the difference between a comma and an apostrophe? Anyone knows the shift key produces capital letters, and the enter key starts a paragraph.
Nothing to do with literacy, computer or otherwise. It's just laziness in the overwhelming number of cases.
I, for one, can't be bothered to answer questions posed by someone who just can't be bothered to put a little effort into their post.
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Yaninnya
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Post Mon Jan 07, 2008 12:46 am

toneh - in the beginning I was intend to explain why in my opinion (and not only mine) water injection is near always used to solve side effects not the cause. But after reading the whole thread I don't want any more. And the reason is your condescending attitude to anyone who want to help you.
Anyway I wish you good luck, when I was much younger I was defiant too.
Jan
P.S. English is not my first language and it is not good at all in my opinion but I'm convinced that my posts are easyer to understand by far. You just need to try. It is not difficult at all.