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Hey Guys..

As part of my upgrade plan, ive got two more steps to go...

1) Up boost to 12psi, install power fc and tune

2) install Ext Cam Gear

Now - in regards to step (2), i understand that this is a mechanical retard.

My question is (sorry if its dumb) - is there any advantage to do this together/prior to the power fc tune for maximum gains....or does it matter nothing since the retard is mechanical ??

:D

There is no difference if all you're doing is replacing your factory gear with an adjustable one ;)

I have heard plenty of people with 33 gtst's getting good results by retarding the exh gear a couple of degrees. As with any modification, you are ALWAYS better to perform the change AND THEN tune for it afterwards.

Adrian

The retarding of the cam gear will do a couple of things.

First your peak power may be a a little lower, this is why people complain about no gains they are looking at the peak power dyno reading. However the boost comes on a tad sooner and the power across the boost range bar the very top end is up usually 10hp or so.

Bottom line is you will have a quicker car at the end of the tune. The guy without the cam gear might beat you in a dyno comp but, you kick his ass everywhere else that actually matters.

As mentioned you need to retune the car and focus on the mid range power timing and fuel maps.

Hi Guys...

2rismo - what you have stated makes sense - however, i wasnt sure if there was any difference between mechanical retard and overall tuning capabilities..

rev210 - the exact reason why i got them...i really dont care about the end dyno figure, just hoping for a good torque (re: 1/4 mile) result...

So - what im hearing is that it seems better to install the cam gear before the overall tune..

Thanks for the replies guys...seems like ill have to wait a while longer before i do the power fc tune... (re: ill do the cam gear install first)

;)

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