Barra Donating Members 467 Member For: 16y 3m 8d Gender: Male Location: Toowoomba Posted 29/11/10 06:09 AM Author Share Posted 29/11/10 06:09 AM (edited) Ratter , or anyone else,Curious to know how it protects its self too especially when it seems to think everything is fine. Edited 29/11/10 06:10 AM by Barra Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 26d Gender: Male Location: @ my laptop Posted 29/11/10 06:33 AM Share Posted 29/11/10 06:33 AM I'm lost on your question (might be brain fade on my behalf???) It does not need to protect itself when it thinks it is fine, but with the predictive formula that it uses, it it feels the cat has reached a certain temperature, the ecu will dump fuel into engine to cool the cat to protect it from damage from overheating, cats are vitale to the car meeting emission standards and remaining that way, they try to protect as best as possible from premature failure.We have seen cat protection come in while on the dyno, it goes very very rich Link to comment Share on other sites More sharing options...
Barra Donating Members 467 Member For: 16y 3m 8d Gender: Male Location: Toowoomba Posted 29/11/10 06:44 AM Author Share Posted 29/11/10 06:44 AM So if the predictive formula is within limits then, the car shouldn't be overly rich.? Yet if it is as a result, of the mod could this be why I have earlier boost and why the cat apears to cool when at idle. Havent been able to establish fuel consumption getting any worse yet. Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 26d Gender: Male Location: @ my laptop Posted 29/11/10 07:18 AM Share Posted 29/11/10 07:18 AM Cat protection is only 1 source of fuel, lots of other things can give or be part responsible for final fuel mixtures.The car will possibly still be too rich at wot without cat protection interferring, unless the car has been tuned to run a leaner mixture, but then if still enabled cat protection would still cause a way too rich situation when it does get enabled.Earlier boost is most likeley due to quicker air flow through the turbo because of lees restriction after it.Fuel consumption should be identical as it is using closed loop fuel control. Actually it will be worse if you are driving around feeling the earlier boost, once you drive it off boost it will be the same. Link to comment Share on other sites More sharing options...
Barra Donating Members 467 Member For: 16y 3m 8d Gender: Male Location: Toowoomba Posted 29/11/10 07:45 AM Author Share Posted 29/11/10 07:45 AM Thanks again for your knowledge on the subject. No restriction and better performance is what it's all about hey, not worried bout the fuel. Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 8m 26d Gender: Male Location: @ my laptop Posted 29/11/10 08:23 AM Share Posted 29/11/10 08:23 AM isn't that the aim of the forum, better power Link to comment Share on other sites More sharing options...
Banned1 Banned Banned 734 Member For: 14y 5m 10d Gender: Male Location: Caloundra Posted 03/07/11 11:12 AM Share Posted 03/07/11 11:12 AM gonna dig this up...did you remove this on the deck (can't be arsed crawling under if it can't ). Link to comment Share on other sites More sharing options...
Banned1 Banned Banned 734 Member For: 14y 5m 10d Gender: Male Location: Caloundra Posted 03/07/11 11:59 AM Share Posted 03/07/11 11:59 AM well, you can, jack up front rhs a little and 2x13mm bolts on flange and pull centre section to the passenger side, rope it off to the front passenger wheel(clearance to work) and grind away.....only issue, I don't have a die grinder and a dremel will take light years ! I'll do it tomorrow night when I get a die grinder ! Link to comment Share on other sites More sharing options...
Barra Donating Members 467 Member For: 16y 3m 8d Gender: Male Location: Toowoomba Posted 03/07/11 01:56 PM Author Share Posted 03/07/11 01:56 PM Rab, I cheated and had a local exhaust shop do it off the car. Cost like $50, dont want to end up with a die grinder in your face if you slipped up, or filings for that matter in your eyes. Link to comment Share on other sites More sharing options...
Banned1 Banned Banned 734 Member For: 14y 5m 10d Gender: Male Location: Caloundra Posted 04/07/11 03:28 AM Share Posted 04/07/11 03:28 AM Yeah, not worried about that mate, I had a ex65 bulldozer start sinking while I was underneath it years ago and got pinned under there for a short while so working from the side with glasses on, this is easy ! .what did you notice in the drive/power as it does look pretty restrictive ? I also had my centre section off for the muffler removal but never seen this at the time or it would be gone ! Link to comment Share on other sites More sharing options...
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