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Old 01-24-2017, 02:30 AM   #421 (permalink)
Honda Head
 
Join Date: Feb 2014
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Rescue Toaster - '90 Honda Civic
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man i have so much reading to do on this... just stumbled across this tonight. so basically you are using a combo of EGR and boost to run super lean AFRs and high throttle settings to reduce pumping loses/high thermal effeciency... i have wanted to do this for years but lack the resources (mostly a garage and money). are you an engineer by chance? or did you just stumble into all of this by way of car hobbies? tuning my first DSM is what led me to learn a lot about engine theory and eventually led me to ecomodder. super cool project.

First edit: are these cars more or less aerodynamic than the 2nd generation to your knowledge? i remember the 2g talon being something like 5.9 CdA.. almost in the territory of the CRX and first gen prius. always thought the 2g FWD body would be a great donor for an FE project.


Last edited by HeadlesNorseman; 01-24-2017 at 02:36 AM..
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Old 01-24-2017, 12:39 PM   #422 (permalink)
In Lean Burn Mode
 
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MisFit Talon - '91 Eagle Talon TSi
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Quote:
Originally Posted by HeadlesNorseman View Post
man i have so much reading to do on this... just stumbled across this tonight. so basically you are using a combo of EGR and boost to run super lean AFRs and high throttle settings to reduce pumping loses/high thermal effeciency... i have wanted to do this for years but lack the resources (mostly a garage and money). are you an engineer by chance? or did you just stumble into all of this by way of car hobbies? tuning my first DSM is what led me to learn a lot about engine theory and eventually led me to ecomodder. super cool project.

First edit: are these cars more or less aerodynamic than the 2nd generation to your knowledge? i remember the 2g talon being something like 5.9 CdA.. almost in the territory of the CRX and first gen prius. always thought the 2g FWD body would be a great donor for an FE project.
Quote:
so basically you are using a combo of EGR and boost to run super lean AFRs and high throttle settings to reduce pumping loses/high thermal effeciency
That's it pretty much, plus I'm running a high heat system and a pre-chamber for stratified charge.

Quote:
are you an engineer by chance? or did you just stumble into all of this by way of car hobbies? tuning my first DSM is what led me to learn a lot about engine theory and eventually led me to ecomodder. super cool project.
Nope, no engineer just did a lot of studying in this field and made it my hobby. Glad to see another DSM guy here!!! The DSM platform is a great car to modify and play with.

Quote:
are these cars more or less aerodynamic than the 2nd generation to your knowledge? i remember the 2g talon being something like 5.9 CdA.. almost in the territory of the CRX and first gen prius. always thought the 2g FWD body would be a great donor for an FE project
My 91 Talon has a cd of .29 I think the 2g Talon Eclipse have a cd of .30?
They are both really great when it comes to aero.
Nice to see another DSM person on here that's interested in FE.
Thanks for your post.

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Last edited by pgfpro; 03-26-2017 at 05:39 PM..
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Old 01-28-2017, 01:05 PM   #423 (permalink)
In Lean Burn Mode
 
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MisFit Talon - '91 Eagle Talon TSi
Team Turbocharged!
90 day: 43.87 mpg (US)
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Here is my single valve enable system I have had a few people asking about.
The first pic is showing the one valve off the seat while the other is still on the seat. Then the second pic is where the max lift (both valves off there seat) occurs. This keeps carbon from building up and also adds a little flow for mid range power.
This in on a spare head I use for mock up.

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Last edited by pgfpro; 01-28-2017 at 01:29 PM..
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