Glentwenty

2003 Legacy GTB Pops and Crackles (BP5)

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Hey Guys,

I have been having a mess around with our Legacy GTB trying to get a few pops and crackles on decel. I'll start with the car.

We have a 2003 Legacy GTB with an EJ20Y, so it has the bigger TD04 Turbo, car has a gutted cat in the downpipe but the secondary cat is till in tact but i think its on its way out, the whole bottom of the cat is covered in white stuff and you can get a bit of an eggy smell sometimes, so that could be an issue. I have been playing around with the "Base Timing B" maps as this is the map most people adjust to get pops and crackles. I have adjusted between 2000rpm and 5000rpm to -12 degrees but the car still won't pop and crackle, is this because of the secondary cat or another reason? I would have thought even with the secondary cat you would still be able to hear it try to pop. The WRX's and STI's seem to have an Overrun table which our legacy doesn't have, also tables called "base timing b (in gear)"  A few questions come to mind.

1. When does the car actually use "Base timing b" and "Base timing a", 
2. Do i need to add fuel at the points where the timing is retarded.
3. Does the Legacy cut fuel on decel? 
4. Why wont you pop :| 

If anyone has any info at all that would be great, 
Cheers

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4 hours ago, Pappu1 said:

i find that having a cat makes it not pop while doing testing 

might be the reason...

I figured it out and made a thread on the Romraider forums. Do you think i should also make one here? would it be useful to the guys on this forum?? :)

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