VWDiesel.net The IDI, TDI, and mTDI source.
Engine Specific Info and Questions => IDI Engine => Topic started by: stewardc on January 25, 2010, 07:10:55 am
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Has anyone on here ever run this on a TD engine?
If so, was it worth the effort?
Will it replace an intercooler?
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My engine has a tmic, (peugeot xud9te) with the w/m on temps are around 30c above ambient, off they are 60-65c+, thats a k03 @20 psi.
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the difference my FMIC has made is enormous in low end torque, boost numbers, i don't even have to look at my EGT's anymore.
For the amount of effort it is to mount them they are definately worth it. Far easier to set up and maintain than water/methanol ... just incase you were debating which to do.
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hey Ed, how often do you have to re-fill your intercooler? i havent had to refill my intercooler yet, and its been on for over a year.
LMFAO...
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Dont knock until youve tried my friends, youd be surprized what the meth does power wise as an extra fuel, for me it works better than my previous fmic setup and everthings constant, no more powerloss after traffic or on a warm day, of course both is better. On my car install was much easier than fmic, cheaper and filling is no problem.
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Dont knock until youve tried my friends, youd be surprized what the meth does power wise as an extra fuel, for me it works better than my previous fmic setup and everthings constant, no more powerloss after traffic or on a warm day, of course both is better. On my car install was much easier than fmic, cheaper and filling is no problem.
yea, but that one time i want it and its empty, that would piss me off enough to take it off and never use it again. especially if i needed it for a reason, like racing a civic, or pulling out in front of someone and getting ass packed because my methanol was out. besides, only tweekers do meth, and im not gonna let my car be a tweeker. either way, its all about preference. and i prefer to use an a2a or a2w intercooler
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Diesel World magazine has an article on water/meth injection. they installed a kit on a VW TDI and had some nice results. I don't have the mag in front of me, but I remember them being impressed and happy with the gains they saw.
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Whats a tweeker?
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Whats a tweeker?
A doper :P
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meh...I drink coffee all day and wouldnt call myself a junkie...lol
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Dont knock until youve tried my friends, youd be surprized what the meth does power wise as an extra fuel, for me it works better than my previous fmic setup and everthings constant, no more powerloss after traffic or on a warm day, of course both is better. On my car install was much easier than fmic, cheaper and filling is no problem.
What concentration do you use ? How much does it cost ?
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when I had mine running(and when I install it on the new motor) I use regular windshield washer fluid, its about 50/50 distilled water/methanol, is cheap and readily available.
just be sure not to get the rain-x or bug remover stuff, as the detergents and other additives may be bad to run through the motor
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I'll have both water meth and front mount on mine. Installing the front mount as we speak. Not to concerned about filling it up. Your not under boost all day long using that much water. It obviously works good.
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I'm going to try this on my car, when all is said and done. Let you know how it goes ;)
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I've had mine on the Caddy about a year and a half. Set to come on at 5psi. I run about 50/50 distilled water/meth. Also running FMIC. Main advantage is for lowering EGT's at full throttle. Another advantage is it's steam cleaning your cyl head when it is on. I've been thinking about testing other mixtures. I thought I read somewhere that Methanol has a Octane rating of 127, great for gassers, not so sure about diesels. Anybody heard about using anything else?
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urea?
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W/M injection does little for IDI diesels except keep the combustion chambers clean. The methanol adds a little bit of HP but its a very poor $/HP gain. The water doesn't make a difference on EGTs like it does with DI engines.
Also, too much methanol will result in detonation so there is a limit on how much power it can add.
In other words, save the money for an intercooler instead (or a larger intercooler).
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W/M injection does little for IDI diesels except keep the combustion chambers clean. The methanol adds a little bit of HP but its a very poor $/HP gain. The water doesn't make a difference on EGTs like it does with DI engines.
Also, too much methanol will result in detonation so there is a limit on how much power it can add.
I will have to disagree with you on the EGT part.
when I had my system on my old turbo'd 1.6 I saw a marked decrease in EGT when spraying(200-400* drop in EGT at WOT and 25PSI)
as for power gains, the only I could see was because I could adjust the pump for more fuel because of lower EGT.
but there was a very noticeable change in power output after adjusting the pump to match.
as far as power per dollar, as often and as long as we really are at WOT under heavy boost, a gallon of washer fluid($2-$3) lasts at least a week of hard driving, and compared to the price of fuel, thats not much.
-Owen
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W/M injection does little for IDI diesels except keep the combustion chambers clean. The methanol adds a little bit of HP but its a very poor $/HP gain. The water doesn't make a difference on EGTs like it does with DI engines.
Also, too much methanol will result in detonation so there is a limit on how much power it can add.
I will have to disagree with you on the EGT part.
when I had my system on my old turbo'd 1.6 I saw a marked decrease in EGT when spraying(200-400* drop in EGT at WOT and 25PSI)
as for power gains, the only I could see was because I could adjust the pump for more fuel because of lower EGT.
but there was a very noticeable change in power output after adjusting the pump to match.
as far as power per dollar, as often and as long as we really are at WOT under heavy boost, a gallon of washer fluid($2-$3) lasts at least a week of hard driving, and compared to the price of fuel, thats not much.
-Owen
Owen, what did you use to control the fluid flow?
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my old system was very rudimentary, and consisted of an adjustable garden sprayer nozzle, a washer fluid pump, and a momentary switch.
it injected pre-turbo and worked surprisingly well.
there was no damage to the turbo fins from use, but then again it wasn't used for long.
my new system uses a high pressure nozzle and pump(150PSI) and a solenoid to activate the spray(so there is no lag from the pump turning on)
-Owen
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so would something like this work as your pressure switch? Hooked up to a boost line and calibrated to close at x psi to turn on your pump...
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the new system I have will run the pump all the time(whenever armed anyway) and has a Hobbs switch to open the sprayer solenoid when the boost rises above the preset value.
-Owen