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Engine Specific Info and Questions => IDI Engine => Topic started by: tdotdub on May 05, 2012, 04:10:48 pm

Title: 97 aaz td swap in an 91 golf... Turbo question
Post by: tdotdub on May 05, 2012, 04:10:48 pm
Today, we swapped out the engine from my dads 91 golf, to an aaz 1.9td.. From an 97 Jetta... And the swap worked out well-ish, since we already drove it :D but the turbo this aaz has a vacuum operated wastegate, and a hose coming off it, going to a solenoid... What does that do? And how do I wire it up? Thanks guys!
Title: Re: 97 aaz td swap in an 91 golf... Turbo question
Post by: 410 on May 05, 2012, 05:24:24 pm
I would leave it disconnected.  It's designed to reduce boost under light load conditions.  When vacuum is applied to the one side of the wastegate it can open up sooner with less boost.  If you want a quicker spool and better throttle response, leave it disconnected.  If you're looking for the best efficiency then hook it up with the solenoid valve.  The micro switch on the injection pump controls this solenoid.
Title: Re: 97 aaz td swap in an 91 golf... Turbo question
Post by: tdotdub on May 05, 2012, 07:22:20 pm
Thanks for the info! But ur saying I get more power leaving it out.. Than that's what I'm gonna do :P
Title: Re: 97 aaz td swap in an 91 golf... Turbo question
Post by: JamesT on May 08, 2012, 12:23:10 pm
Hook it up to a kill switch that only you know about, so when your wife drives your car, she doesn't flog the *** out of it just because "she can". I've seriously considered making my car N/A on demand when my wife hops in just to save the engine from her.
Title: Re: 97 aaz td swap in an 91 golf... Turbo question
Post by: CrazyAndy on May 08, 2012, 09:39:40 pm
Hook it up to a kill switch that only you know about, so when your wife drives your car, she doesn't flog the *** out of it just because "she can". I've seriously considered making my car N/A on demand when my wife hops in just to save the engine from her.

I wouldn't want to ride with your wife.  :P

But I do like the idea of having a 'hi-lo' system that splices directly into the stock system; power when you need it, efficiency and driveability when you'd rather not lay into it around town.
Title: Re: 97 aaz td swap in an 91 golf... Turbo question
Post by: nathan_b on May 09, 2012, 12:06:29 pm
dual pressure electronic boost controller.

Cheap, change boost with toggle switch.

honda guys have been running them for years.