Would a load senser be better in place of the TPS for the SAFC? :smoker:

You mean the good old MAP sensor "hack"?

personally, i think with a laggy turbo it may be worth it, but for smaller turbo's im not sure you will see any gains
the theory makes a lot of sence, but i havent heard if its worked out...


adam

I might try that latter this year, because I have a laggy turbo. What is your set up know?

~John

For us uneducated can you inform me as to what your talking about?

Aren't you running an AEM though?

So, you gonna give us some info on your sig? How much boost? Same old turbo? What dyno? Chart?

no AEM, I will make a post about it I suppose.

~John

On the AFC, you normally have it switch from the low throttle to the high throttle map based off of TPS voltage. The TPS sensor is a 0-5volt sensor. Somewhere around .4-.7 volts is usually 0% throttle and 4.5-4.9volt is usually 100% throttle. Most MAP(pressure) sensors also work off of a 0-5volt scale. So the idea is to wire the MAP sensor into the TPS line on the AFC instead of the real TPS sensor. So that it switches from low to high throttle setting from a change in pressure, not just TPS. It might take a lot of fiddeling aroudn with it to get it to work better than the nomrla way, but it could possibly make the time when your building boost more responsive. You probably don't want to throw the biggest MAP sensor on it either since the biggest problem area is more in the low boost range.