All Things Mk5 > Performance Modifications

Water Methanol Injection instead of a bigger intercooler...?

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grey golfster:
Yes, understood, and agreed I think....but if so, you think the ultimate M car would do likewise in their quest for power/performance?

AJP:

--- Quote from: grey golfster on October 29, 2016, 12:01:31 pm ---Yes, understood, and agreed I think....but if so, you think the ultimate M car would do likewise in their quest for power/performance?

--- End quote ---
Well the power increase over the normal M4 is about 70bhp, so that was probably deemed sufficient. Yeah they could arguably have used meth but at the expense of having to develop a foolproof water-meth system on a production car that anyone could buy and drive. I'm sure not all M4 owners are true enthusiasts who'd have the means and ability to run a car with methanol in a tank like some modders are prepared to.

70bhp just with water is significant though.

colesey:
This is a great thread! Not knowing much about the subject, I went and did some googling and read some great stories about how it was used in WW2 plane engines.  The benefits seem awesome for tuned cars - lower IAT / octane enhancement / clean running / moderate cost.  The only downside I can see, is where the tune is aggressively cranked up and the user lets the mix run out.  Hmmm, certainly some food for thought here......

DANBOY66:
do not buy that IE manifoild !

it flows worse than stock and i am sure it was proven by niki when he swapped it for a stock one on the dyno

and on a bench flow by another forum member a stiock one flowed better
then with the internal trumpets removed it flowed better than stock but its about 40 hours labour to remove them a friend bench flowed it before and after the trumpets removed and it did get better

total waste of money the stock manifold flows well

meth with no intercooler works well but then your car is meth reliant and that is not ideal in the real world its easier just to fit a descent intercooler and forget about it unless your going for maximum power then fit a cooler and meth

i have done both meth and cooler and now just cooler and tbh adding meth to a car is just more hassle and expense for very little gain

Dan..

colesey:
The recent colder damper weather has certainly been welcomed by the car. A stark reminder that cooler IAT Is needed, even at stage one, so I had better put this on the to do list.

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