My new car to test my lean burn chamber

[pgfpro]

I just bought a 1991 Eagle talon TSi AWD with a automatic transmission.

I'm building and engine similar to my Honda engine so it will be a Performance/FE type build utilizing my lean burn prechamber.

I did some baseline testing to see what it does for mileage in stock form. It got 20mpg freeway so i will have my work cutout for me.

I will also have a way to control shift points via the TCU so it will have a better economy version plus performance and control of the line pressure.

Where I live we are known for having bad winters so the AWD will come in handy and it will also be are camping vehicle.

[GasSavers_Erik]

Interesting-

Do you have any pics of your lean burn prechamber? Is it anything like the late 70's-1987 Honda CVCC precumbustion chamber?

[spotaneagle]

this is one of the smartest guys on here

[pgfpro]

Originally Posted by Erik

Interesting-

Do you have any pics of your lean burn prechamber? Is it anything like the late 70's-1987 Honda CVCC precumbustion chamber?

At this point I don't have any pics. I'm refining the chamber and it does have some issues I need to address before I will show pics.

Its kinda built around the idea of the CVCC but has its own unique design. That is it can be made to install on any engine.

I should be able to pull off a freeway mileage of 35mpg with this setup on my Talon for a 75% gain in fuel mileage.

[fowljesse]

I'd like to see you work on a car that gets good mileage to begin with. AWD auto... Well, it's a challenge!
I bet you could break the magic 100mpg barrier in a Metro.
I would love to know more about your prechamber, and see pics, too.
75% gain sounds great.

[pgfpro]

Originally Posted by fowljesse

I'd like to see you work on a car that gets good mileage to begin with. AWD auto... Well, it's a challenge!
I bet you could break the magic 100mpg barrier in a Metro.
I would love to know more about your prechamber, and see pics, too.
75% gain sounds great.

I would love to test this in a Metro engine. I just have to many irons in the fire so to speak.

[trmclaren]

Doing this with a DSM. Me my self i wouldnt do it. Plus a lean burn chamber turbo cars hate to be lean. It will start to detonate very bad. Please dont do this to a beautiful DSM

[DRW]

Originally Posted by trmclaren

Doing this with a DSM. Me my self i wouldnt do it. Plus a lean burn chamber turbo cars hate to be lean. It will start to detonate very bad. Please dont do this to a beautiful DSM

There's a difference between running lean at WOT and running lean during cruise. I've been running leaner than 18:1 during light cruise for over 5 years on my car. It still has the stock engine with over 268K miles on it.

At WOT I run 11.0 AF ratio with appropriate timing on 91 octane and 22 psi of boost.

[theclencher]

Originally Posted by pgfpro

I should be able to pull off a freeway mileage of 35mpg with this setup on my Talon for a 75% gain in fuel mileage.

How do you figure?

[trmclaren]

Originally Posted by DRW

There's a difference between running lean at WOT and running lean during cruise. I've been running leaner than 18:1 during light cruise for over 5 years on my car. It still has the stock engine with over 268K miles on it.

At WOT I run 11.0 AF ratio with appropriate timing on 91 octane and 22 psi of boost.

now i understand man LOL...