Originally posted by wilson502
ive heard that, most power is made at 210 degrees coolant temperature....
Not to be blunt, but are you high?!?!
Whoever you've heard from that a motor makes the most power at 210 deg.... run away, far away, fast.
The cooler the engine (and thus the air charge), the more power it will make. Period. That is just plain physics. It all has to do with the density of the air. More dense air, more power.
The problem is that from an emissions standpoint, it is easier to meet the emission regulations with a hotter engine, and thus the 210 deg thermostat. But it’s a double-edged sword. With the hotter engine, you have to pull out timing to make it able to run on 87 octane in all situations (120 outside temp, up hill, low rpm, etc…. ) and you lose a lot of potential power.
By running the cooler thermostat you can put the timing back in (which is where a lot of power is) and still not detonate (which is very bad).
All the tuning is doing is making the engine more closely suit the performance requirements of the driver. The OEM “tune” is designed to “please” 100,000 different people in 1,000,000 different situations. It is very broad and designed to be very easy on the engine no matter what type of gas is used.
You also might want to tell you dad that the “tune” is based on a tune from a Ford employee who helped design the transmission and it has probably 10 years of proven performance with no detriments.
Just my .02 and GET IT, you won’t be sorry!!
97 Lincoln Mark VIII LSC (Chip'd, 3.73 T/L... so far... )
97 Ford Aspire (Slow, but getting 36 mpg (f'n Ethenol!!
84 F250 Dually w/6.9L Diesel (7.3L IDI pending)
73 Mercury Cougar Convertible w/351C 4V (Partially Restored)
69 F100 LWB w/460 Engine
76 Glastron Carlson 23' Jet Boat w/460 CJ Engine