Maximum Safe Methanol Mix on a JDM MY01 STI
 

Obviously anything up to 20% seems practical and safe, but what about anything above this?

Any experiences please, especially on a standard block and internals.

Thanks
Rob


PS I know that Andrew Carr mapped a motor early this year on 60% Meth along with some other ingredients to help lube, but Im not sure of the details, plus it was a forged build.

iv been told it will eat thought the fuel system over time,,ie seals and pipework but im not sure how true this is

Its a far point, any more info anyone on this?

Nobody has reported issues on the "newage" cars that I can fnd, so I guess its ok on 2000/2001 > cars :wonder:

duncan has run much higher on his time attack car and dont think he had any issues, i have heard fuel lines corrode etc but it would be over time and nothing major, i just run it at 20% and it works fine, not to mention cheaper than v-power

Rob

I just found this if you fit teflon hose as i have done then as the diagram shows that methonel will work fine with the ptfe inner with no problems to the fuel system at all

http://www.texloc.com/cl_chemical_resist_chart2.html

Yeh I ran 20% on my last car with no issues, and with a huge barrel sat in my garage I want to get it used up :lol1:. I may ring Andrew Carr and ask his opinion of anything over 20%. Im happy with the likely gains of 20~30bhp and simuar torque I 'll gain from 20% (based on my previous experience), but what can be had from 40% :wonder: :Suspiciou :D

Cheers Lee. What is your intention fuel wise with your project build? I dont want to over complicate fueling, particularly with a current road car, but 40% meth to me sound simple enough to conduct and I dont have any worries using the product. 20L meth to 30L V-power :wonder: :luxhello:
Rob

simple for me 20% meth if duncan can map it in with a switch.

Talking to Andrrew Carr and Brian @ CAMS in the past, they both advised me to either use it or not, as switching between the two could cause fueling issues. I think what they mean is if I happen to select the "meth" map and run without meth...... well you can read into this, and I suppose it could equally cause issue the other way too.

I would still be interested in knowing if over 20% is safe (ANYONE?)

Rob :D

I dont think its a matter of being safe as it wouldnt do any damage as far as i am aware(But dont do it on my say so, lol) but the gains are just not there for over 20%, As you get an average of around 10% increase in power with 20% meth, For example if you then put say 40% meth mix in it does not equate to a further 8-10% increase on top of the already gained 10%, There are very little gains over the 20% threshold as far as i know regardless of the percentage of meth.

I think the issue with fuel lines/tank corrosion is down to the methanols ability to draw in water/condensation (not the correct term but i`ve had a hard day at work and cant think of the word i want, lol) which in turn causes the issues to fuel tanks/lines etc..... Obviously the longer a car has been using it the more likely it is that there will be corrosion somewhere, Especially if the car has been left for a certain amount of time with the mix still in the tank.

I`m sure the 20+% mix has been tried with not very outstanding results which is why most people tend to stick with normal, 10-20%,

Ive been thinking about getting another map put on my Spec-C with a 20% meth mix with the standard VF36, I`ve often wondered how close to 400 it could get being in virtually standard form, Excluding the exhaust, panel filter and a 3 port???

Gaz.

Hey Gaz, thanks for the info.

I asked the same questions, and here is a response although with a VF30:
https://www.scoobynet.com/general-te...to-be-had.html

Hope this helps you a little :thumb:

Rob

20% is the magic number Rob - there are limited gains beyond that and dont outweigh the downsides IMHO. I ran a 50% mix

What like standing at the pump for 30 minutes while you put in 5 Jerry cans of methanol before filling up, lol.

Martyn

Thats one of the downsides yeah lol

PMSL - 2 Jerry cans is enough to arouse suspicion at my local Shell garage! So 20% it is then, thanks for the info guys. I wasnt sure of the negatives by using more than 20%, but im guessing by Duncan's response the potential risk by far out weighs the gains. I just recall a conversation in the past with Andrew that he was mapping a car on some exotic cocktail, of which one was 60% meth and only 20% Petrol! (I cant recall the other 20% ingredient although it was something to help keeps things lubed lol) Anyway im happy with the outcome. Thanks again guys. Rob

Probably toluene.

The problem with a high mix of methanol is getting enough in to the engine. Whilst methanol has a higher octane than petrol it doesn't yield the same amount of energy for the same quantity. You would need massive injectors and pump(s) to get enough methanol in. In theory you could run 100% methanol as long as you could get enough in and because it has such a cooling effect you may even be able to run without an intercooler.

Is there a way of setting up a seperate tank for the methanol and having it mixed in the lines - or ven a direct injection method so you could switch easily between the two and not have the risks of seperation in the tank etc.

I thinks its unlikely to seperate in the tank unless unused for long periods of time.

I like the idea of Running 100% meth, esecially at 55p per litre!

[IMG]http://i665.photobucket.com/albums/v...3/feb53c19.jpg[/IMG]

:thumb:

I wouldnt be too sure on that assumption based on my observations/experience.

100% meth will need a lubricant in the mix too.

picking my car up SOON .got to ask martin if he can do this for me ,i think its called aqaumist .has any one used it ,i think it injects water as well

Isn't that just the Spec C water spray tank for the I/C?

Yes it's just the I/c spray reservoir. The worlds most expensive plastic bottle lol

What do people think of aquamist, can it supply the 20%

I've looked few months back for Aquamist and on nasioc is big thread about the Aquamist and problems occurred with these systems(mainly pumps failing),but for these money you can build own and your Syvecs can control without the problem


Jura