Rob Day

iTrader: (78)

All very interesting, will certainly be looking into how to order, store, fill up, map, and use this stuff very soon. Rob

Only read as far as page 4, going bed

Purdey

simtek getting fitted to my blob in a few weeks & im considering going down the metahanol route. Had a look on the jennychem website but also found another chemical company at a much cheaper price

has anybody used this company?
http://www.dtchemicals.co.uk/index.p...uct_detail&p=2

£81.99 + £49 SHIPPING

Cheers

paulT25

I am having my T25 mapped for 10% Meth , next week by Bob Rawle.
This will be my first time with a Meth map, and I will also have a Vpower map as well.

If you had a mix of meth at 10% and then topped up with straight Vpower, could I run the car in the Vpower map? even though it would still have a slight mix of meth ?

I do hope to run the Meth all the time , to make the most of the mapping and the power and a bit cheaper than Vpower.

Would Tesco 99 ron , be ok when mapped for Vpower and Meth? not sure on this one?

Paul.

chris84

iTrader: (1)

would think it'd depend how much you topped up.

I've considered this exact problem because I'm looking at utilising my 2nd map for meth.

Suppose if you run your car down to the redline and then filled up with vpower there would be such a small amount of meth in that it would probably just run slightly rich and not be a problem. I've seen mappers mention that you can get away with upto 5% meth without mapping anyway even though it's not advised.

paulT25

Running 20% and is so easy to fill up and sort out the % of meth to fuel.

I always run the meth mix and may get the wick turned up when I have the billet wheel fitted, maybe 1.9 Bar?

If you go to the redline on the gauge I am sure you could get 12 lit Meth in as well as the fule for a total top up of 60 liters?
I only carry 10lit of meth at the most [Jerry can]

Lots of posts with Meth again this weekend?

allsop83

iTrader: (9)

This to the top again?? I can hear the groans but.......I am thinking of doing this aswell on the Simtek

My question around the mixing- if you put in TOO much meth would it damage anything? My thought is that you could have too little meth and when using the meth map you would do damage?

Any issue with running, say, 20% meth all the time??

Can anyone confirm or deny that meth stops absorbing water from the air once it is mixed with petrol?

chris84

iTrader: (1)

I asked some similar questions before starting to use meth myself. I run 5 litres of meth to 25 litres of petrol although I can put in up to 30 litres and I don't see any det. When it was mapped I believe Simon JGM did it like that as a safety margin.

vpower and meth both go off so i'm not sure why you would want to know if it still absorbs water once mixed? once mixed in your tank it's not going to in there for too long so no need to worry, plus it's pressurised. if you're planning on premixing it i wouldn't recommend stock piling loads. legal limit for these types of substances is 50 litres anyway void your house insurance.

if i don;t have meth with me and i have say 1/4 tank left i just fill up with vpower and change to my vpower only map. having some meth in on the vpower map isn't going to do any damage. having too little meth in and running on the meth map will cause det and possibly damage something. simtek flashes engine light when it detects det, if that happens switch to your vpower only map straight away in case you messed up the meth quantities.

when i spoke to people about using meth i quickly realised that some people mean different things. so i refer to 20% meth as 40 litres vpower + 10 litres of meth so 80% + 20%. a lot of people actually mean 40 litres vpower + 8 litres of meth so 100% + 20%.

i think it works out that i'm running about 14-15%.

Rob Day

iTrader: (78)

As far as im aware, 20% meth means 20 parts meth / 80 parts petrol. (1 to 4)

If anyone nneeds any methanol let me know, Im based in Earby (BB18).

I have plenty

Rob

chris84

iTrader: (1)

For those at the other side of the country a place in Bradford sells it for £0.50 per litre up to 205 litres then £0.46 per litre after that. He has 35,000 litres on site.

allsop83

iTrader: (9)

Nice one mate exactly the precise and to the point answer I was looking for!

GeeDee

iTrader: (2)

Would someone please advise what NF is. I'm sure I'm going to kick myself when I find out.

Also, from what I have read on this thread, if using, say, 10% methanol it seems you don't "need" a remap but you won't get the full benefit. My question is, apart from lower fuel costs, what power improvement is likely?

My Spec D PPP was remapped by JGM earlier in the year to give 328bhp.

MartynJ

No, if using 10% methanol you will definately require a remap.
NF is also known as Nitrous Formula and it is an octane booster.
10% methanol can net up to 7% more power and torque.

Martyn

Maz

iTrader: (34)

Furthermore as methanol doesn't yield the same energy for the equivalent amount as Vpower you will need more of it, therefore a remap is even more prudent to ensure that your engine doesn't run lean.

Billet

iTrader: (60)

If i filled up with v power and 20% meth, then drove somewhere, but when i parked my car up, still had some left in the tank, after how long would it go off. I would like to know the answer to this as my STI, is my second car so i only drive it once or twice a week. I have heard meth goes off quickly and fuel that has gone off makes the car more DET happy.

cheers.

eggy790

iTrader: (20)

anyone got an answer to this?

Maz

iTrader: (34)

It's only an issue if the meth is exposed to air as it absorbs moisture. In a sealed container (fuel tank) I don't think it's that much of an issue.

Wmscooby

iTrader: (24)

Would you need to upgrade the fuel filter if you ran 20% meth ?

Maz

iTrader: (34)

I'd consider a 10 micron one as you never know if there are small particles in the cans you are using.

eggy790

iTrader: (20)

is that with fuelab filters? as the websites state the 40 micron one should be used if using methanol, 10micron for petrol

Maz

iTrader: (34)

The fuel lab filters should be compatible with methanol right down to six microns

Have you got a link?

eggy790

iTrader: (20)

i had an issue with the paper filter msyelf.. and pretty sure demon tweaks states it aswell next to filter elements.. but just got this back from Fuelab, emailed them about 30mins ago.

I guess i should switch to the 6 micron fibreglass ones as soon as , as the 40 micron dont filter that well.

just emailed them back about how often they would say they need changing at a 20% mix.