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Why use an atmospheric BOV when a closed loop yields better performance? What do you guys prefer? Seems kinda stupid to lose all that boost pressure on every shift....:nono:

The ISC doesn't make any kind of sound when the engine shutdowns. It does idle up slightly when either of those are turned on. I'll defintely go over all the things you mentioned once it stops raining. THanks a lot you guys for the responses and I'll keep you posted. :icon_surp

So you think it's definitely the ISC?

Hey everybody, I'm having trouble with the idle in my 87 supra turbo. It starts up and revs to 1500 as it warms up. After it reaches operating temperature it drops to about 800 or 900. I'll come to a stop at a redlight and the idle will then be sitting at about 1000 or 1200. It sometimes...

Nice, how do you like the 50 trim? Do you wish you had gone bigger?