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Modding Stock Cat


XR6T-CTOWN

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  • 12" member
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  • Member For: 19y 8m 5d
  • Location: Perth WA

I've been thinking of doing this... but then again its about a $100-150 job to cut the factory cat out and weld in straight pipes compared to say $250 for cheap cat + install.. bit of a hassle if you get done having to put the stocker back, but then again I doubt any hi flow cats would pass emissions would they?

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  • Member For: 17y 2m 12d
  • Gender: Male
  • Location: Wanneroo, Perth WA

I did this before I had a tune and ended up gettin a XFT 5" cat cos it was boosting to 20psi,

Busting out the cat is just a headache dude

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  • Member For: 16y 9m 4d
  • Gender: Male
  • Location: C-town, Syd

What is goin on with these sh*tbox fords?????? People say it can't be boosted without a tune as the computer won't allow it. If this is the case then a punched cat won't allow the car to run 20psi. Which one is it? will the car overboost or does the computer control boost? If a cat will allow the car to run a higher psi then surely an electronic boost controller could be used without a tune.

From a nissan supporter (not xr6-ctown)

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  • Member For: 16y 6m 8d

Its electronically controlled and punching/changing the cat changes the parameters the system works with, similar to if you used a larger maf/housing it would mess up fueling.

You can run more boost with a controller but if it isnt tuned it wont make power and will be very dangerous. At a recent dyno day my stock xr6t made 195rwkw. Another T was running 18 psi and only made 50kw more with a really bad a:f ratio. If you have to tune it anyway why bother adding extra hardware?

I'm a nissan supporter too but you're giving them a bad name by not thinking things through. You dont have an r33 or s13/4 do you? :3gears:

Edited by gregor
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  • Member For: 16y 9m 4d
  • Gender: Male
  • Location: C-town, Syd
That sort of attitude won't get you any help at all.

LOL sorry dudes I was using my mates computer at this house to check out the forum, I left it logged in he must have hijacked my thread :spoton: my bad my bad

lol yeah he owns an S14 so cant understand or comprehend the whole compulsory flash tune when modding ordeal us fordies go through ...... damn rice lovers

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