Yeah, that's what put me off in the first place. I like the instant "go" with the current setup, but I AM curious.

And i don't think i could justify the remap cost just for adding methanol.




Two months of quitting smoking and drinking and i could afford the lot.

 

lunar; you not worried about your internals? You must be knocking on the 420 door.

 

Sounds like a performance gain and a money saver too if you get a quantity of it

 

Yeah - I realise I'm 'pushing the boundaries' and if I were going to track the car, I probably would have already uprated the internals. Having said that, running methanol helps keep things nice and cool and is probably no more stressful on the engine than the 400bhp I was running. But in the longer term, I'm planning on a 2.35 forged build anyway, so if it goes pop, it won't be all bad news

 

Are there any benefits to adding methonal to an unmapped engine ??

 

I'm not an expert, but as far as I understand, while it may supress knock, it won't yield any extra power unless it is mapped for. It will also make the engine run a bit leaner

 

Latest version of SimTek boards and software will hold up to 8 map combinations....!

 

there may be some benefits even on its own as the leaning effect of the methanol could release more power.

Great write up and certainly back up my own tests - love the stuf but save it for 'special occasions' now

 

Methanol contains oxygen which improves power. One thing to be wary of is that adding methanol without mapping will cause leaner running, this is fine in most cases as the std map usually runs rich. It is however worth checking the AFR with a wideband lambda sensor just in case your car is already running lean, they are all different so there is no point risking it.

 

is this the stuff that you need ??

Methanol 99.95% 205L ( bio-diesel ) on eBay, also, Other Business Industrial, Business, Office Industrial (end time 18-Jan-08 15:59:08 GMT)

 

Nice thread.

Whilst I've enjoyed PSLewis's pixel fun and other stuff too whilst getting infracted and banned a few times [oops!], this really is just the kind of stuff I started visting SN to read.

The great write-up at the start gave a good flavour of someone's enjoyment at tweaking their motor. It's what Scoobies are about.

Thank you.

 

"Where you going love?"

"Just to fill up the car honey".

 

 

how do you guesstermate how much meth to put it? 10% but do you just go by your fuel gauge and hope for the best, how many miles your car is on?

i dont do very many miles in my car and think i would find it hard to guess how much of the stuff to put in, with out getting very low on the tank before filling up.

any tips on this?

 

I put a 5litre can of methanol in and then 45 litres of fuel.

or I put 2 litres in a 20 litre jerry can and fill that to the brim and then it is ready mixed.

 

 

interesting - or it will be when they have a DBW version

 

will be speaking to Martyn about this.

 

So long as you know roughly how much capacity you have left in your tank and can do some simple maths, it's not hard to get it right. For example, when my fuel gauge shows 1/4 tank, I know I can get 35 litres in. That's 3.5 litres of methanol topped up with 31.5 litres of fuel. I have sourced some good 2.5 litre clear containers and marked them in 0.5 litre gradations. Easy to carry and allows me to accurately dispense the right amount

 

how would it compair if not used in with the fuel, but in a water injection system, running 100% meth?

any benifits running this way?

 

I was running 50/50 Methanol/Distilled water in my car until the WI pump started playing up. (I had it in a bad location).

I had it mapped out in the end as I was going to sell the car and wanted to make it more 'normal'. (Although it is all still plumbed in).

But it certainly did make a difference even with my big front mount and 650 injectors.



The reason I used distilled water is A, Jennychem is local to me so I can buy 50L drums and stick them in the boot. B, because I was only using a 0.4mm WI injector, I wasnted to avaoid impurities that might block it.

If you do go this route I would recommend spending out on an aquamist flow meter.

 

Oh yeah, forgot to add,

The WI was triggered by the STI Auto water spray circuit (it is partly ECU mappable - boost/Inlet temp, I think) and the original waterspray bottle was used as the resevoir. I also used the original water spray pump as a priming/slave pump for the Aquamist one.

 

Go to Liddle and get some of there "Freeway" bottles of lemonade, you then either drink or pour it down the drain and use the 2L bottles as Methanol containers!!!
the reason for the freeway bottles is the shape of the neck as it is a nice fit into the cars filler and you dont get any spills unlike asdas lemonade bottles....lol

its dead easy, one lemonade bottle of methanol = 20L of fuel.

NF does not realy like to be mixed with methanol directly but if you put your methanol in the tank first, stick a bit of petrol in then your NF and continue filling up with shells finest it should mix fine

I have not been using NF yet with mine and sadly wont as im selling my car so I can get a house (was planning on Methanol + NF to give me 400 bhp crank with my vf35!!!)

I have been using the same lomonade bottles for over a year now with no leaking problems.

Graeme

 

I hope you havent got kids !

i wouldt want any clear liquid in drinks bottles that would potentially kill someone.

 

Dont worry there well marked up and live in the garage!!!

oh yea and no kids
Graeme

 

Good post Graeme - especially the bit about them fitting directly into the filler neck Just one thing though, if you're using 10% methanol, 2L of methanol = 18L of Shell's finest

 

So do you add 45 litres of 95 RON or 45 litres of SUL to 5 litres meth?

 

vpower

 

what are the down sides of using ths? i only do around 1 tank of fuel every 1.5 to 2 weeks if im lucky, would it cause me any problems, leaving it in my fuel tank/ any other part for that long?

 

To the pro guys,

So.... what REAL increase does Methanol actually give?

Based on 500bhp for arguments sake, what increase would I expect with a safe mix of meth and VPower? How much ignition advance could be had?

How would this compare to me running VP Import (120+ octane)?