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Old 04-17-2010, 10:51 AM   #1
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My new car to test my lean burn chamber

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.
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Old 04-17-2010, 02:20 PM   #2
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Interesting-

Do you have any pics of your lean burn prechamber? Is it anything like the late 70's-1987 Honda CVCC precumbustion chamber?
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Old 04-17-2010, 03:13 PM   #3
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this is one of the smartest guys on here
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Old 04-17-2010, 08:04 PM   #4
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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.
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Old 04-17-2010, 08:15 PM   #5
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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.
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Old 04-19-2010, 05:08 AM   #6
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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.
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Old 06-30-2010, 06:08 PM   #7
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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
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Old 06-30-2010, 09:59 PM   #8
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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.
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Old 06-30-2010, 10:44 PM   #9
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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?
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Old 07-01-2010, 08:21 PM   #10
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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...
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