East Tennessee Region SCCA

Was this just a basic COBB AP or did you go for a standalone? I'd like to see how they were able to gain more boost without control over the wastegate.

thrdeye wrote:I'm no super tooner, but we sure didn't add any selenoids on the STi and the street tune was about 3 psi higher than factory.

Not sure what year the STI was but, it seems they come factory with an EBC. According to COBB.

http://www.cobbtuning.com/support/how-s ... rks-v1-09/

It was a 2004. I'd think most modern turbo cars that fall into ST aren't going to need any selenoids added. Many of them already alter boost based on gear selection, slip, yaw, or other ECU parameters

My 20 year old VW uses the computer to control waste gate and boost.

TedV wrote:My 20 year old VW uses the computer to control waste gate and boost.

Yeah, my 27 year old Miata does too.

90civichb wrote:

TedV wrote:My 20 year old VW uses the computer to control waste gate and boost.

Yeah, my 27 year old Miata does too.

Factory original?

Of course Ted! Factory Nissan turbo and all!

Honestly I catch myself thinking 20 year old cars are old or something all the time. It's like my brain is still stuck in the 90s. I'm sure most OEMs use some sort of ecu controlled boost control, if not for performance but safety. I remember in high school a friend had a turbo Dodge Shadow. It was stupid slow so he went and started unhooking vacuum lines. The car got pretty fast all of a sudden. So he came to school the next day and started to call all these people out to race, mostly Hondas. Anyway, he had crossed the signal line from the intake to the wastegate so it never saw boost and thus stayed closed. He blew it up that afternoon, but he was right, it was alot faster.