Compound AI system: H20 pre-turbo and Meth post-turbo?
 

So after extracting out some of the rants and getting to the ideas, if H20 injected preturbo is good, and amounts of Methanol can replace gasoline in the fuel injection process, how much of an effect would H20 pre-turbo AND Meth post-turbo have?

Compounding systems adds complexity. But if they provide results that one cannot not achieve by either system alone, is it of enough benefit to overcome the complexity and cost.

I wonder about the benefits a componded system could have, over and above what the individual systems could impact by themselves.

Tony

At a guess.

I would say that pre turbo will give very good atomisation of the water and excellant cylinder distribution for predictable and repeatable results. This could also enable you to extract some extra power from the compressor.
The post turbo meth would give you icey cold IAT's and a of extra incylinder cooling ( due to its lower temp coe )

Sounds good but expensive.

scott

Scott,

Basically near double the cost. Considering how much I have in the car already, it becomes cheap if I can extract consistent performance and the ability to fine tune it into the upper PSI's of boost pressure.

I guess until I can get it into a formula of have real world experience with it I am stuck asking the question in forums.

I wonder:
How and how much is the "squish" going to be impacted by the water? Add that to the impacts of the meth of the "blow" and the net impacts to the "bang."

The meth part of the equation will be handy to increase the overall system Ve due to its great cooling effect.

It does sound very complex, but for the 5% or 10% extra performance is it worth it on a road car? I dont know.

I do know from personal experience that a pre turbo water injected pump fueld car can deliver SOOOoooo much power that you wont know what to do with it (in a car light and small as a RX7). Not being able to accelerate in the first three gears is cool for smoke shows and painting lines on the road, but it does little to make your car fast.......... something to think about? maybe?

Honest 580~600bhp engine with 100% reliability is more than enuff in my books.

Agreed on the power to the road issue.

For the current project the Racelogic traction control works fine. Too much still is not enough! :)

But like anything else...learning how to maximize and mix to produce consistent results and "tunability" would be worth the excerise.

Its a tough one to call with no experiance of combining both methods. The meth should also help the water stay suspended in the air as well.

Scott