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  #1  
Old 4th March 2010
marmite marmite is offline
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Default Best way to adjust boost...

Hi. I have a load of new parts going on my 900 T16 on the weekend, including FMIC, Red band injectors, 3.3FPR, 3" Jt Exhaust system including down-pipe... It is a carlsson, so it already has the red box APC.

I don't want to run massive boost... probably around 17psi would make me happy... I did the APC mod on my previous 900 carlsson, but too so much messing about to not get boost spikes... so i was wondering if anyone can recommend a way to get to around 17psi boost without all the messing about. Does anyone out there make a modded apc to run about 17psi, instead of the 26psi from Swedish Dynamics.

Chris
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  #2  
Old 4th March 2010
b0bb0 b0bb0 is offline
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The SD box does adjust down, by turning the P pot counterclockwise. So it goes from 26psi max on down. The nice thing about the SD box is that it recovers quickly.

You could try and adjust the P pot on your existing box to maximum. Or do the Aero mod. Or adjust the wastegate actuator to a higher base boost.
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  #3  
Old 5th March 2010
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philjohnhb philjohnhb is offline
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When you say you 'modded' your previous APC so you mean the 900aero.com mod? That very simple mod will give you 17psi very easily and cost about 25 pence.
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  #4  
Old 5th March 2010
marmite marmite is offline
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Yeh, it was the 900aero mod... i found doing the mod easy enough, but just had lots if issues adjusting the pots and getting it to boost properly.
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