hey fellas, turbo questions
08-06-08, 09:52 PM
#1
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hey fellas, turbo questions
I am looking at doing up the exhuast system with some catless or hi-flow catted downpipes from RissRacing. What does an O2 simulator do? Also, they offer a nice set of midpipes for $299, how much power would that add? I know it is purely speculation on your part but I am just curious what you think. The mid pipe are HUGE so I would assume they are important if they are an inch wider in diameter.
08-07-08, 12:53 AM
#4
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wheres the turbo part of the question? are you saying your planning on going turbo so you want to do this?
and hey how does that simulator work, if it sends the stock signal how would the computer adjust the A/F ratio?
and hey how does that simulator work, if it sends the stock signal how would the computer adjust the A/F ratio?
08-07-08, 11:47 AM
#5
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Jesus, you guys are some whiny people. First off, car chat doesn't have to deal with lexus cars. Second, how would a post not be random on here? Explain that one to me. Do I need to post several threads about something so to follow up on it? Most of the things I read here are random so get a clue.
Plus, I did post this at a BMW forum as well but most often I get a better response from more mature people on here. I guess this case was different. If you don't have something to say that is helpful than why even post this nonsense? Yes, I was in a hurry when I wrote that. I am moving to a new house so excuse my writing style for being blunt.
Plus, I did post this at a BMW forum as well but most often I get a better response from more mature people on here. I guess this case was different. If you don't have something to say that is helpful than why even post this nonsense? Yes, I was in a hurry when I wrote that. I am moving to a new house so excuse my writing style for being blunt.
08-07-08, 12:40 PM
#6
I think what they're trying to get at is that this is a Lexus specific forum even if it is Car Chat. We're not going to be BMW gurus so most of us won't know the gains on your particular vehicle. There are however some 335 owners on here and they can help so everyone stop bashing on him for asking a question.
08-07-08, 01:28 PM
#7
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I am looking at doing up the exhuast system with some catless or hi-flow catted downpipes from RissRacing. What does an O2 simulator do? Also, they offer a nice set of midpipes for $299, how much power would that add? I know it is purely speculation on your part but I am just curious what you think. The mid pipe are HUGE so I would assume they are important if they are an inch wider in diameter.
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08-07-08, 11:59 PM
#8
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Jesus, you guys are some whiny people. First off, car chat doesn't have to deal with lexus cars. Second, how would a post not be random on here? Explain that one to me. Do I need to post several threads about something so to follow up on it? Most of the things I read here are random so get a clue.
Plus, I did post this at a BMW forum as well but most often I get a better response from more mature people on here. I guess this case was different. If you don't have something to say that is helpful than why even post this nonsense? Yes, I was in a hurry when I wrote that. I am moving to a new house so excuse my writing style for being blunt.
Plus, I did post this at a BMW forum as well but most often I get a better response from more mature people on here. I guess this case was different. If you don't have something to say that is helpful than why even post this nonsense? Yes, I was in a hurry when I wrote that. I am moving to a new house so excuse my writing style for being blunt.
you're right about e90 being dicks.
Last edited by f=ma; 08-08-08 at 12:02 AM.
08-08-08, 05:41 AM
#10
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Guys, give SilverBull a break. We have many BMW owners on here and people with experience with BMWs, they might chime in with his answer.
SilverBull, I do suggest a more descriptive title so you can attract people that can help more.
As for adding a midpipe, I wouldn't expect more than 5hp, computers are what run the engines now and adding bolt ons to new cars isn't a guarantee for more power.
SilverBull, I do suggest a more descriptive title so you can attract people that can help more.
As for adding a midpipe, I wouldn't expect more than 5hp, computers are what run the engines now and adding bolt ons to new cars isn't a guarantee for more power.
08-08-08, 10:59 AM
#12
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O2 simulators are available for lots of cars, not just BMW's guys. Supras have them as well a lot of cars that don't want to get a CEL. I had a pretty good idea what the sims did but there are some wise and smart people here who know a little bit about everything. I ask random questions since a lot people tend to like the threads I start. 1/10 usually goes like this but I deal with it and move on. I have been on this board awhile and had an IS350 before my car and still on an RX350.
I do understand that the title and thread were written poorly but I was in a hurry and didn't proofread it.
I do understand that the title and thread were written poorly but I was in a hurry and didn't proofread it.
08-08-08, 11:36 AM
#13
Hi Silverbull count me in as enjoying your "random" threads as much as any in Car Chat. I try to transfer performance knowledge from the source to brands I own (Lexus & others ). I have not had the pleasure of experiencing a new 3 series except thru the pages of magazines, but it seems their weakspot is low rpm power which will probablly be worsened by increaseing exhaustpipe size. Your car stats mention Dinan tuning, what do they think about this?
08-08-08, 11:53 AM
#14
O2 foolers arent legal (EPA) but are pretty much universal.
they send a generic signal to the ECU...which I would only do with an aftermarket / replacement or piggyback ecu to correct any A/F problems.
They should not be used by people who dont know what they are..ur asking for trouble because ur stock ECU thinks its running "OK"....All while you're dumping hella fuel and air into your engine via turbo.
If u put them in, take it to a Dyno for tuning and have a wideband installed to monitor your readings. Having a air/fuel meter is a must with these...as well as a way to adjust your fuel and air.
eh, u can also use sparkplug non-foulers that will do the same thing for about $5 bucks!
they send a generic signal to the ECU...which I would only do with an aftermarket / replacement or piggyback ecu to correct any A/F problems.
They should not be used by people who dont know what they are..ur asking for trouble because ur stock ECU thinks its running "OK"....All while you're dumping hella fuel and air into your engine via turbo.
If u put them in, take it to a Dyno for tuning and have a wideband installed to monitor your readings. Having a air/fuel meter is a must with these...as well as a way to adjust your fuel and air.
eh, u can also use sparkplug non-foulers that will do the same thing for about $5 bucks!
08-08-08, 11:59 AM
#15
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BZZZZT. Nope. O2 sims are to make the ECM believe there is still a working cat in the system. Nothing else. They have zero input to fuel trim. The primary O2 does that before any cat because post cat sensing is pointless.