Hi,

I will install a methanol/water injection kit in my car.
The petrol in Sweden has been completely destroyed because of to the petrol companies put E85 in the gasoline to get the octane drop dramatically ...

My question is where the optimal location is in the Y pipe?

I was thinking of using two nozzles, but exactly where should I place them to get the best effect on the octane rating increase?

 

generally guys put the nozzles 1 feet after the tb (search is your best friend)
i would use methanol only for extra safety but not for making power!
the uneven distribution will certainly lead to an engine failure ! trust me bin there and i am not the only one!

E85 is an alcohol based fuel that is 85% Ethanol and 15% Gasoline. E85 is a high octane fuel with an Octane rating of approximately 105-108 Octane points (depending on manufacturer). This is several octane points higher than 98 Octane premium unleaded and on par with many designated professional level race fuels.

The next interesting fact about E85 ethanol based fuels is that it reaches stoichiometry at an air/fuel ratio of 9.7:1 compared to an air/fuel ratio of 14.7:1 for gasoline meaning for any given application you will use as a minimum of 30% and in many cases closer to 50% more fuel to achieve the same result. Part of the reason for this that E85, and in fact any alcohol based fuel has a much lower calorific value or in simple terms the same amount of fuel contains much less “energy”
E85 is an alcohol based fuel that is 85% Ethanol and 15% Gasoline. E85 is a high octane fuel with an Octane rating of approximately 105-108 Octane points (depending on manufacturer). This is several octane points higher than 98 Octane premium unleaded and on par with many designated professional level race fuels.

 

Best is - best safety, best performance or combined ?
From the octane increase point of view I dont see any difference regarding the location of the nozzles...

From the cooling point of view, closer to the Y pipe is better (less heat); if one injector is leaky the meth will be all over the engine and might have fire hazard, thats why some guys are installing them at the end of the ypipe.. if you are using max50% meth shoud be ok anyway

I didnt notice any IAT difference between injecting at the base or at the end of Y pipe and tried both of them, most of the guys here are injecting closer to the TB...
Take into consideration also atomisation when choosing the location and injectors size (2 smaller injectors are better than 1 bigger)

 

Hi,

I'm no chemist ...
What has happened to our fuel in recent years in Sweden is not possitivt.

We had previously SHELL V-Power 99 which most mapped with.

Now it is mixed with 5% e85 causing poor performance, the reason I am not knowledgeable enough to explain ...

In order to not have to buy race gas is the easiest solution to adding methanol, according to those who have knowledge about this.

I have a map from Protomotive and it goes amazingly well on nurburgring where they have ARAL 102 racing gasoline at gas stations, in Sweden it goes a lot worse!

 

hi,

Thanks for your response!

I will run with 2 nozzles.

Most people here seem to land on 25% methanol, 75% water, or 50-50.

Probably I put them near the throttle body.

 

Good choice! Talk to protomotive to prepare a new map with a bit more timing, a 50/50 map would do the job, make sure you are using good fuel like aral 102 and have good ics, check everything often for leaks especially for the first 2 months, use a reliable meth kit like aquamist, protect your meth lines under the car and in the engine bay, use like 45% meth, dont push the boost to high ( if you have a boost controller ) and you will be very happy driving a reliable car, enjoy !

 

Do you think there will be a significant difference if the nozzles are placed at the exit of the intercooler tanks instead of the y pipe?

 

not significant, but meth will run warmer, so increased IATs