Moding the B3! Yea i said B3!

[Damkid]

How awful does a b6 run with a b3 computer? If you use the b6 injectors you wont lean out but does it stumble around town? Im thinking of getting a b6 and putting it into the aspire, being mass air it should compensate a little better (in theory).

if you run a B6 with the B3 ECU it will idle at about 3k rpm, trust me i've tried it

[rolla4me]

They are right! B6 swap is the easiest way to go..

[Safety Guy]

I ran my '93GL auto on the B3 ECU for a few months after my B6 swap and it did okay. Mileage and power are not optimized. After I put in the B6 ECU I could tell a difference, but for the auto it was not exactly "night and day." More like "noon and evening." But it was noticeable.

Karl

[neanderpaul]

I wonder what kind of mpg drop you can expect with a B6 or BP in comparison to a B3, stock for stock.

A friend of mine got 48 mpg at 75 mph with a b6 festiva.

[skeeters_keeper]

I got almost 45 @ 65mph with my B6.

around town i get about 35-38 average though... but i have a little bit of a heavy foot around town