Tom's Fuel Map Controller + TRD Racing Spark Plug

[crxgames]

I have read some articles on someone making a custom circuit to do the same thing as this on a prius and they were getting good gains...

I really wanna try one of these out now. 2.5" intake, 1zz-fe throttle body, headers, full exhaust, and this could be a pretty nice combo for a daily.

[CTScott]

Originally Posted by crxgames

I have read some articles on someone making a custom circuit to do the same thing as this on a prius and they were getting good gains...

I really wanna try one of these out now. 2.5" intake, 1zz-fe throttle body, headers, full exhaust, and this could be a pretty nice combo for a daily.

Point me to the articles if you can find them. This would be very easy to do if I had some curves to grab data points from. And, it could be a $50 item.

[tk-421]

Originally Posted by CTScott

Point me to the articles if you can find them. This would be very easy to do if I had some curves to grab data points from. And, it could be a $50 item.

Interested!

[crxgames]

Originally Posted by CTScott

Point me to the articles if you can find them. This would be very easy to do if I had some curves to grab data points from. And, it could be a $50 item.

As requested:
http://autospeed.com/cms/A_2658/article.html
http://autospeed.com/cms/A_2659/article.html
http://autospeed.com/cms/A_1458/article.html
http://autospeed.com/cms/A_2661/article.html
http://autospeed.com/cms/A_2664/article.html
http://autospeed.com/cms/A_2388/article.html

I link to all of these as there's good info in all of them. The last 2-3 links are the ones with most of the info though. If you make one of these, I wanna know!

[CTScott]

Originally Posted by crxgames

As requested:
http://autospeed.com/cms/A_2658/article.html
http://autospeed.com/cms/A_2659/article.html
http://autospeed.com/cms/A_1458/article.html
http://autospeed.com/cms/A_2661/article.html
http://autospeed.com/cms/A_2664/article.html
http://autospeed.com/cms/A_2388/article.html

I link to all of these as there's good info in all of them. The last 2-3 links are the ones with most of the info though. If you make one of these, I wanna know!

Very interesting!


Scanning through it I saw this:

So despite trying each of the following, consistent full-load mixtures could not be obtained:

* Intercepting the airflow meter signal with the DFA
* Altering fuel pressure
* Switching the oxy sensors in and out on the basis of throttle position
* Switching the oxy sensors out as fuel pressure was progressively increased
* Switching the oxy sensors out and intercepting the airflow meter signal with the DFA
* Switching the oxy sensors out, increasing fuel pressure and intercepting the airflow meter signal with the DFA
* Intercepting the oxy sensor signals with the DFA
* Disconnecting the oxy sensors at all loads and then setting the mixtures via the DFA working on the airflow meter signal


The solution in this article was to increase fuel pressure, rather than intercepting the airflow meter signals (and 02 sensors). My original thought was that you would need to fool the 02 feedback as well, but with the turbo Prius, even that wasn't consistent.

I'd really like to see some hard data on the Tom's to see if this is worth emulating.