Jump to content
SAU Community

Recommended Posts

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)

;)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • There's a huge reason manufacturers are tuning in dead flat torque curves... Make them reliable (and more drive able)
    • What HVAC actuator is under the steering wheel? Do you mean on the RHS of the centre console, immediately to the left of your shin? If so, then yes, it is probably that one, because that is the mode door actuator, and from what I know, it's still a pain in the arse to replace. I don't know about whole dash out, but you certainly have to rip into the centre console section. I don't know if it's covered in the workshop manual, as I haven't spent much time looking at those parts of it. (and by "the workshop manual, I mean the R32 GTR one, which is the most comprehensive one we have, and it should be similar enough between that and later cars to serve as a guide).
    • ...oops. forgot the TCU end...
    • No I got mine from a friend that had fabricated one … but I had to fit it to my setup which was a hks turbo setup. His was a Garrett -7. So one of my turbos was not a flange for one side … then I had a leak in the welds I had to find a weld shut … in the end the setup was decent priced but I spent a lot to get it fitted. A couple companies I checked would make it but you’re talking 7-9k aud with titanium. No joke mine was 6-7k even second hand after I had to fit it in Hong Kong … labour is expensive here. 
    • I'd just like to restate that I don't think anyone here is actually hating I recently sold a car part to a guy who was building a forged auto R34, with MV stall and aiming at ~450kw. I told him that I'm him, from the future and to stop after it explodes once. I told him I knew he won't listen the first time, and that's fine. But if my predictions do come true - Change direction faster than I did. I also said it's probably no coincidence that the dyno plot of a reliable turbo engine starts to look a lot like a N/A motor. :p
×
×
  • Create New...