Methanol Injection on the 7m: pros? cons? and methods

7thousandpiecesMGTE

Boostin USA
Apr 9, 2007
469
0
0
Harford County, Maryland
I'm thinking about using methanol injection on my new build, anyone ever implemented methanol on the 7mgte? I am thinking safer hp gains can be seen with methanol opposed to NO2 (although not as high yeild gains) but am not experienced with methanol...

pros? cons? is the setup complicated (are there any timing issues etc.) ?

ballpark cost vs NO2? refill availability, etc.
 
Last edited:

JustinGotA1j

New Member
Jan 28, 2007
532
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Chilliwack
Ya my bad it was a bit harsh maybe. Just search Methanol or Meth Injection or something along those lines and you should find all you need.
 

7thousandpiecesMGTE

Boostin USA
Apr 9, 2007
469
0
0
Harford County, Maryland
JustinGotA1j said:
Ya my bad it was a bit harsh maybe. Just search Methanol or Meth Injection or something along those lines and you should find all you need.

no problem, i am guessing you dont know alot about it? or are you just saving the knowledge for your own personal 1j-powerplant gain :biglaugh: ????
 

dbsupra90

toonar
Apr 1, 2005
2,374
0
0
indiucky
ok, wasnt sure which you meant. i knew you didnt mean methane, which is swap gas haha.

the good-

can run higher boost levels on pump gas
helps keep inside of the motor clean
has some cooling effects
its cheap compared to race gas

the bad-

even tho it allows you to run higher boost than you would on straight pump gas, it still isnt as good.
it is a failure point. if you are running high boost and something fails, there is the potential for kaboom.
sometimes harder to tune air/fuel
hard to get even distribution between the cyl.

there are quite a few nice systems out there. everything from software driven to progressive controllers. some even have some nice "system warning" features where it will back off timing or boost if there is a problem. but it is still a failure point to some degree.

it can be beneficial, and ive seen cars work well with it. but ive also seen problems with them too.

i use a mix of 93/110 in my car. yes, it is more expensive. but i know each cyl is going to be running the same air/fuel, and there isnt a failure point.

hope this helps
 

dbsupra90

toonar
Apr 1, 2005
2,374
0
0
indiucky
yeah that reminds of the other part of your question, sorry i forgot to respond to that.

nitrous adds horsepower. meth injection does not add power. only allows more boost and/or timing.

meth around here is $3/gal (gal goes a long way)
nitrous is $4.50/lb ($45 per bottle fill)
 

7thousandpiecesMGTE

Boostin USA
Apr 9, 2007
469
0
0
Harford County, Maryland
dbsupra90 said:
ok, wasnt sure which you meant. i knew you didnt mean methane, which is swap gas haha.

the good-

can run higher boost levels on pump gas
helps keep inside of the motor clean
has some cooling effects
its cheap compared to race gas

the bad-

even tho it allows you to run higher boost than you would on straight pump gas, it still isnt as good.
it is a failure point. if you are running high boost and something fails, there is the potential for kaboom.
sometimes harder to tune air/fuel
hard to get even distribution between the cyl.

there are quite a few nice systems out there. everything from software driven to progressive controllers. some even have some nice "system warning" features where it will back off timing or boost if there is a problem. but it is still a failure point to some degree.

it can be beneficial, and ive seen cars work well with it. but ive also seen problems with them too.

i use a mix of 93/110 in my car. yes, it is more expensive. but i know each cyl is going to be running the same air/fuel, and there isnt a failure point.

hope this helps

hmm makes sense...

lets say for street use i want to use pump gas.

Which is the safer route:

a lower shot of NO2 (say 2 stage 75 or so) or methanol injection?
 

logan

3 laws safe
Oct 4, 2005
109
0
0
U.S-U.K
7thousandpiecesMGTE said:
hmm makes sense...

lets say for street use i want to use pump gas.

Which is the safer route:

a lower shot of NO2 (say 2 stage 75 or so) or methanol injection?

Meth and n2o are completely different . One is a high octane fuel (meth) and the other is a power adder (n2o) . How safe they are really depends on how good you set them up and your tune .
 

IJ.

Grumpy Old Man
Mar 30, 2005
38,728
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I come from a land down under
Title edited
(have to admit my mind went down the fart trail when I read it ;) )

JustGota1j: Dude we don't need search Nazi's here if you have nothing constructive to add to a post just skip by it please.
 

7thousandpiecesMGTE

Boostin USA
Apr 9, 2007
469
0
0
Harford County, Maryland
hey guys thanks for the info, much appreciated.

The more I read about Methanol the more I am leaning toward just using a higher octane gas mixture and possibly explore the route of a small shot of N2O.... I think I would feel more comfortable with a lower boost range and a little spray (maybe no spray) rather than something going wrong with the methanol system at a higher boost....db put the fear in me!
 

williamb82

Member
Apr 24, 2005
906
4
18
42
Tampa, Fl.
i plan to run a water/meth injection setup on my 7m. i have the lower intake manifold modified for 6 additional fuel injectors. i need to find 6 bosch style low impedance injectors that are ~130-150cc/min for it to work the way i intend. im gonna run the injectors off the same drivers as the fuel injectors which are 780cc/min. that way itll be a 1:6 ratio of the water/,eth mix to the fuel. i will have a separate adj regulator for the rail on the water/meth injection so i can increase or decrease the flow to change the mixture for best results. and since it is direct port every cyl will always get the same amount. ill be using the blue windshiled washer fluid as a friend of mine works at an autoparts store as a manager so i can get it cheap, and if im out of town its only like $1.50 a gallon anyway. check my car domain page for my 84 for pics of the lower manifold.