David0ff

iTrader: (6)

How many LC-1 users have experienced sensor overheat ? ..what is the mileage you have put on your LC1`s and how accurate are they after 10k miles or so
have any of you used them on the track ( lapping not drag )
i am considering either making or purchasing a copper plate . such as this one :


is it necessary ?

Mods on car are :
Stock twins
Tuned ECU
13 PSI
Down pipe 3"
exhaust ( high flow cat ) 3"
Intercooler and intakes ...
will tap B4 the 2-3" after the DPipe/MidPipe flange

thx

NV02

iTrader: (3)

I made a heat sink like that, but even my little 2 liter BMW M10 overheated it. Instead, I got this bung extender for the 7, and it has worked much better:

http://www.034motorsport.com/product...roducts_id=542

you just have to make sure the internal duct is aligned with exhaust flow.

Dave...

David0ff

iTrader: (6)

wow 100 bux again .. damn lc1 kit costed me 2 bills ...

thx

FixableUnknown

iTrader: (8)

I have about 7k on my lc1. It sits in the ASpec downpipe about 6" back from the turbo no heat sink . The turbo is a GT35r with a blanket and the downpipe is ceramic coated. I have had no problems with my wideband.

NV02

iTrader: (3)

I should have mentioned that my cars are pretty much track-only cars, so they do see higher temps than a DD. You can make one of those heat sinks in about 5 minutes, so it is certainly worth experimenting with before throwing money at the bung extender. Good luck,

Dave...

Dudemaaanownsanrx7

iTrader: (23)

Mine has been in for over a year and a half, no heat sink. Mounted in the end of the downpipe, still accurate and never over heated. Prob 6k on it.

arghx

iTrader: (3)

I'm on my third sensor. First overheated after about 800 miles. It was located about 24" from the turbo, no heatsink. That heatsink costs more than a sensor so I was kind of reluctant to buy one. The second one I located way in the back of the midpipe area, right before the catback flange. That ran fine for about 1000 miles. Then I put the car down for almost a year and forgot to re calibrate the heater. 600 miles after I put the car back together I fried the second sensor. I'm now on my third in the same location. I still haven't bought the heatsink. It is frickin 90 dollars, and a sensor is $60ish at Carquest.

Note that my exhaust temps I think are pretty damn high with my current setup. I fried both my preturbo EGT probes.

David0ff

iTrader: (6)

wow ... that is hot .. in terms of EGT`s probes...i have about 20,000 km`s on my prosport probe and ... still transmitting .. it`s placed between the 2 turbo exhaust wheels ... b4 the downpipe

i will install it and c what happens ...

thx for all the input ...

fritts

iTrader: (5)

I have went through 3 sensors in about 5000 miles. The First one was without a sheetmetal heat sink the last one was replace just recently and lasted much longer with the heatsink.

arghx

iTrader: (3)

It makes you wonder if aftermarket widebands (LC1 especially) have crappy heater control logic compared to OEM. The Rx-8 has a wideband for a front O2 sensor before the cat and they last. I'm sure it still gets plenty hot considering the temperatures I have recorded before when out of boost.

NV02

iTrader: (3)

The bung extender actually removes the sensor from the direct exhaust flow and uses a duct to move the exhaust past the sensor. Probably adds a little delay to the sensor reading, but it does seem to extend its life significantly - at least for me. For the heat sink to be most effective, it should be in some air flow; easier said than done.