SameerP

What are the pro/cons of an external wastegate?

Audiboy

so if you were to target a boost pressure of 20 psi, you don't have to start opening the valve earlier (crack pressure) at say 14psi, but just do it close to 20.

Con - packaging (big), catalytics further down stream not good for cold startup, requires seperate tail pipe to be optimal, hmmm

SameerP

Interesting..thanks

Bryans12v

I was wondering if you had any old pics of the ERAMs on your old 12v?

Do you ever end up selling the car?

Audiboy

<center><img src="http://pictureposter.audiworld.com/9/aboyeram.jpg"></center><p>yup still there. Although these are '99 pics and slight improvements have evolved since then.

Never planned to sell the car. Must have been someone else I continue to play with it everynow and then.

Bryans12v

Never threw a DTC? Have you ever noticed any rich running conditions?

I would be intersted in something similar but I dont that they would be working to thier potential unless we had calibration software readily available for the 12v.

Any feedback is appreciated.

Audiboy

the MAF leaned out the mixture when it turned on. Plumbing has a lot to do with it, probably changed the temp of the wire by being too close and not giving an accurate measure of how much air is going in there. The one after the MAF works perfect, but is not the most efficient place to put it due to the moving engine vs the stationary air box. The thing always had issues after a few track events - cracked housing, unsoldered terminals.

To do this right is to move the MAF farther away, and put 2 of them inline after it before the engine and secure them such that a flex tube can isolate the engine vibration. Then you'll see close to 1psi if you reroute your PCV intake and seal the rubber around the TB with silicone.