hi guys im going to invest in water injection to help protect my engine!

do i fit std water only setup which lowers combustion chamber temperatures and allow extra boost if required,

or fit water/methanol injection! which obviously does the above and the additional methanol gives added octane rating (120 ron) and extra oxygen! giving abit more power without raising psi!

i spoke to my rolling road expert who builds and races rally cars and he has suggest water only as meth power gain wasnt large and when he used on rally stage system pressure hose blew off and caused engine bay fire! trouble is methanol burns with no flames at all so can be very dangerous!!!!!!

 

do i go for boring water of risk methanol?????????????????? :confused:

p.s sorry its long winded :nono:

You only really need to fit water injection if you want to run more boost but are restricted by intake temps. If your intercoolers are up to the job all you will do by fitting it is loose power.

blitz sus induction

G reedy side mount i/c's

jd chip ;)

apexi boost controller

nismo 555 injectors

smithy's t25/y28 hybrid turbo's (set at 126psi)

ported and flowed exhaust manilolds

split divorse down pipes

custom de-cat pipes

scorpion silencers

 

this is my spec! i want to make my engine safer without having to fit forged pistons this year!

also looking at uprated fuel rail to eliminate no 6 cylinder lean problem!

 

what do you think???

126 psi!!!!! :shock: :D

StellaZ knows all about the meth. ;)

sorry i meant 16 psi it must be my fat fingers or wishfull thinking!!

any one else got any senseible replies???

You can install a std water injection and just add methanol to the water when you feel like it. We did it on an MR2 turbo.

Go for the water and add meth as and when, its true you loose power but it cant be much and it really helps the engine, so is def worth it.

just to be pedantic ,.......methanol does burn with a flame, its just not visible to the naked eye ...........i know a few guys that run water injection on sierra cosworths who dont run with methanol added , they do say advantages off lower combustion chamber temp , outweighs the power drop experienced , so if your after reliability its probably a worth while mod ,

you new what i meant about the flames!!

surely i have to run water or meth and stick to it?

if i run just water and set jets to that if i then put 50% meth, im halfing to water and reducing cooling??

if i run meth this cancels out water power lose and because of the 120 octane ot converts fuel too it can give 30 bhp when set-up right? apparently!

but its the burning risc im not sure about? (system pressure 150-180psi

 

p.s if you completely mix 50 50 water meth why does the meth still burn????????

bump bump?

have you really fitted those mods on stock pistons?

have you really fitted those mods on stock pistons?

 

why not? nothing wrong with it unless/ until it dets...

stock tt pistons can live with 400hp but beyond their reliability is questionable.the crank and rods are good for 500.with the mods hes made he should see 400 at least.

Is it not the vapour that burns? If so, despite being mixed with water the vapour will stil be there. I guess.

 

"p.s if you completely mix 50 50 water meth why does the meth still burn????????

yes good point must be the vapour!

jimmer its not like my set up is unusual there are lots of zeds running my spec without forged pistons! (or more power)

i think if set up correctly with no det or lean fueling its not a problem!

especially when i have fitted water injection and uprated fuel rail!

also i am not a hard driver, i.e standing start's, or max speed mercant! and with only a couple of thousand miles a year i reckon ive got no problem for quit a while??

 

i will happily do forged pistons but not untill my golf mk2 engine conversion is finished! (mk5 2.0 turbo 300bhp)

 

p.s when speed tested on rolling road speedo went off the scale (over 180) at 6.5k rpm is this right? speedo has been calibrated)