My 1991 Talon TSi Compound Turbo AWD

[HeadlesNorseman]

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.

[pgfpro]

Originally Posted by HeadlesNorseman

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.

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.

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.

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.

[pgfpro]

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.

[figit090]

Any updates? How's the dsm?

[pgfpro]

Originally Posted by figit090

Any updates? How's the dsm?

Sorry its been awhile since my last post.

I did a lot of racing this last year with the Talon. So my main focus was the performance side of the build. The car did great, performance is right where I want it. Its very capable of running mid 9's (both intake valves full open) in the 1/4 on race fuel and low 11's (single intake valve able) on pump premium fuel. I even did some dirt drags with it and never loss a race with her. Did a mpg test this fall and shes right back where it was before with a 41 mpg average. Been driving it this winter and this thing is a tank in snow with the blizzaks. lol

I going to update the charge pipe cold side to a non- inter-cooler system. So now it will be able to be in fuel economy mode all the time. Then when I race it I will use alcohol injection and nitrous as my chemical inter-cooler.

Anyway its nice to be back on here and enjoying everyones posts!!!

[redneck]

.

I did a lot of racing this last year with the Talon. I even did some dirt drags with it

Awesome...



But please....

Do not tease us (me) with a screen shot of the video in pic #1 and a still of the dirt drag.


Come on man...

Post the video....




>

[pgfpro]

Originally Posted by redneck

.



Awesome...



But please....

Do not tease us (me) with a screen shot of the video in pic #1 and a still of the dirt drag.


Come on man...

Post the video....




>

Will do. I have to go to a family deal be back later today.

[pgfpro]

https://youtu.be/87vT8Ky2M0Q

https://youtu.be/dLZmvPldh1s

[figit090]

Awesome man! Seriously insane to see that power and that economy, switchable within the same engine. I wish car manufacturers would do this!

[pgfpro]

Pic of a log running lean burn.