Who is running speed density and no O2 Sensors?
#1
Who is running speed density and no O2 Sensors?
I am about ready to finish the tune on my Turbo LS motor...
I am already running a speed density tune and I am considering ditching the o2s all together (except my wideband and gauge)
Who else is running this setup? How do you like it?
On a side note my car is a weekend warrior and only driven in nice weather and I live in Florida so no huge altitude changes...
Thanks
Matt
I am already running a speed density tune and I am considering ditching the o2s all together (except my wideband and gauge)
Who else is running this setup? How do you like it?
On a side note my car is a weekend warrior and only driven in nice weather and I live in Florida so no huge altitude changes...
Thanks
Matt
#6
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love my olsd.. of course if you dont have the ability to tune i would keep the sensors. i dont have a problem at all even with big temp swings and different seasons.. if your tune is on your good.
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#10
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I tune mine & run OLSD 3bar VIA HPT. I tune it every pass, gotta keep this stock motor living! Honestly on the street its not a big deal, my little 76 makes boost so fast I'd have to be wanting to outrun the poletzia or get arrested to do damage to the motor from the weather changes. I keep it tuned for 11.6 under boost & when the temperature drops I'll drop the PE/Boost Enrichment .2 richer & then dial it in from there. You could make it stupid rich and run it like that all year but I wouldn't advise it.
#12
Well I have the o2 sensors on the car as of now so i guess I can just leave them... I have heard a lot of guys say that they burn them out really quick on turbo cars though... any input on that?
Maybe I do need to start working on doing my own tuning....
Maybe I do need to start working on doing my own tuning....
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#15
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Yeah, like maybe like 1" from the turbine housing. I have my W/B sensor a very safe distance away from what I've researched when I built mine but I have seen a lot of builds with the sensor closer than what I have come to understand is safe, a lot of people seem to be getting away with it. FWIW my whole hotside is 304 SS & the crossover has turned colors from heat but the 4" DP is big enough I guess it dissipates the heat very well. You can look at the DP and tell it takes way less heat, its still almost the same color as when I first fired it up. My theory is that its the diameter of the pipe that helps it cool down the EGT's after the turbine.
Last edited by WS6HUMMER; 01-22-2012 at 01:12 AM.
#16
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I fouled my 02 sensors out one day at the track along with my plugs when I set the start point of my methanol injection at way too low of an RPM on accident. Loaded the motor up with fuel. I think the reason you hear people with turbo cars burn them out is that they are using leaded race gas which will foul narrowband O2's up quickly.
#17
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I fouled my 02 sensors out one day at the track along with my plugs when I set the start point of my methanol injection at way too low of an RPM on accident. Loaded the motor up with fuel. I think the reason you hear people with turbo cars burn them out is that they are using leaded race gas which will foul narrowband O2's up quickly.