51 replies to this topic

[styles]

Has anyone done this rather than charge cooling or is it a PITA

[The Batman]

good idea i know someone that has a kit remember the meth kit only works on full boost i believe and not sure if they will be able to map it on a z22se ecu....

[styles]

I was only thinking that it would reduce the inlet temps far greater than any charge cooler could. You only need the cooling on full chatt anyway, standard cooling should cope with the normal driving, am I wrong? Do you know anyone with a z22 ecu thats done this?

[The Batman]

no one has to my knowledge i know a tubby that has it on but thats about it but like i said i seriously doubt the ecu can handle it unless it is finally cracked

[styles]

Cheers Joe I looked over at z22se for some answers too but either my searching is shite or it hasnt been done. Long over due beer btw....

[Nev]

I've looked into methanol a fair bit. I even bought 50 Litres and put some in my tank as an experiment. You need to be aware that methanol errodes aluminium - this is why I decided to abandon using it as a fuel addative, as ultimately it will affect the inlet manifold, cylinder head, boost pipes, fuel tank etc etc. Personally I think that in high boost applications, water/methanol direct injection just prior to the inlet ports could be warrented. It's main advantages are: 1: Increasing octane massively (methanol has a huge octane (around 114 to 118 if I remember correctly)). 2: Increase cylider cooling. There are kits that will inject it under high boost and once remapped to take advantage you can get a lot more power out of an engine at high revs. However, if your car is mapped to use it, then if you ever run out (eg on a long road trip), you will get detonation if you put your foot down...

Edited by Nev, 03 May 2011 - 12:18 PM.

[The Batman]

Yup that's why you should get a plastic tank I can't see the mixture being a problem once it enters the engine though especially on a 50/50 mix with water

[Nev]

In short, I wouldn't bother with it Styles, unless you are running > approx 20 PSI of boost. It would be a lot of hassle for gains that could easily be got from elsewhere.

[FLD]

You can just run it on a boost switch so it swicthes on at a certain pressure. No need for ecu intervention! The biggest downside is that you run out. From my experience of it (very little) the maximum effect is achieved with the inject site as far from the valve as possible to allow for heat to transfer. As for the octane rating I'm not sure, I thought MeOH was lower. Its used in drag cars as a fuel because it has a fast burn rate.

[styles]

I believe it will increase the octane of the fuel, from what I have researched. I need to speak with someone who knows this stuff as if we can just run this off boost pressure it shouldn’t be too hard a system to adopt, you would have thought....

[styles]

In short, I wouldn't bother with it Styles, unless you are running > approx 20 PSI of boost. It would be a lot of hassle for gains that could easily be got from elsewhere.

I'm not thinking of a power boost from this at all rather reducing the inlet temp through alcohol injection without the need to run a charge cooler. From what I have I read this is a far more effective cooling method.

[The Batman]

It increases octane alot by about 10 or something ridiculous like that I did research into it but memory like a sieve speak to aem they do a good kit But it is at full chat so would speak to courtenays about whether they can actually map it on the z22 ecu.

[styles]

Cheers Joe Im dropping courtenays a line to see if they have ever done this....

[The Batman]

I know they can map it to the z20

[styles]

They have never done it on the z22 I'm going to speak with AEM to see what they say and how their system runs....

[The Batman]

Told ya Aem do sell a sort of piggy back ecu.. But too be honest I see no gain just a constant cost of needed to buy more meth and carrying it if you are going on a long drive etc. Are you going for stage 3+? As this is the only way i see it being more beneficial

[styles]

I'm not too fussed about the meth as its uber cheap and it will use bugger all at low rpm. I am trying to plan a 300bhp project where I will collect the parts over the next year and thought water/meth cooling would be great to keep charge temps at a minimum to increase the effectiveness of the engine.

[slindborg]

cost/faff/weight over gain = pointless imho... For the hassle of fitting it, getting the engine calibrated enough then calibrating the meth then calibrating both, then carrying the extra tank+weight etc I'd simply get a new intake manifold made up with some less lossy charge cooling device.

[The Batman]

cost/faff/weight over gain = pointless imho...

For the hassle of ....... I'd simply get a new intake manifold made up with some less lossy charge cooling device.

that would be more hassle imo!

[leevx2.2]

I have got a kit in the garage AEM it looks like a good kit I think it should work well. It works of an intake pressure sensor and you adjust what boost you want it to turn on. Should give me a few more bhp with a 50/50 mix of water and meth