to folks running itb's or who have tuned them,
Question is, can you run itb's off ecu and vafc, or do u have to run after market fuel managment.

Also where do you connect the brake booster vac line, Iac, and map snesor.

If i have missed anything that was tricky at install and/or tuning, please help me out.

I will be running TWM individuals.



[Modified by MARC P, 7:59 AM 3/10/2003]

 

You shouldnt have an ITB setup if your are still using an AFC to tune your car.
programmable ecus are the only way to get proper fueling for a high performance engine.

 

That is the answer i wanted to hear.
Steve have you seen good gains in going from manifolld to itb's when useing programible ecu's.

thanks steve

 

As for this part.. When running ITB's no longer have to worry about the IAC, but for the MAP and brake booster you'll have to catch the vacuum from somewhere... On each ITB runner there should be a vacuum port... There are several different ways to wire this up but the easiest that I have found is to "Y" them all together into a can... I've made these out of SCH100 PVC pipe.. All it has to do it take the 4 separate vacuums and make them 1... Off the can you can tap in for MAP and your brake booster vac.. Hope this helps.. Peace