so we needed a WBO2 heatsheild for the turbo sho - V: dad got bored

NYSpeed Automotive
1

so one of the probs on the sho was that the wideband was half failed, and i had mentioned to my dad how i was going to have to make a heatsheild for that section of pipe, and how hopefully that woud help protect the WB sensor also

so last night, he made this heatshink for the wideband on the lathe:

http://www.sonikempire.com/hotrodkid/sho/Picture80.jpg

today, he made this one instead… i think ice is going to form on the sensor while the car is running

http://www.sonikempire.com/hotrodkid/sho/Picture82.jpg
http://www.sonikempire.com/hotrodkid/sho/Picture 83.jpg

2

umm ive never seen a wideband sensor fail from heat… ive seen them live in glowing downpipes… what failed on it the wiring? if so how would that protect the wiring other then drawing a litlle heat away from the sensor itself

3

nice work lol

4

Widebands are NOT meant for continuous use, they are a wear item, they will fail. They dont fail from heat though. Notice how no one else in the industry does anything other than just screw the damn thing in and price the sensor cheaply enough it can be replaced?

5

heat will shorten the life of a wideband

6

Shorten, yes, sudden death, no. Nothing a heatsink is going to help with.

7

The Bosch LSU4.2 wide-band O2 sensor (shipped as part of the LC-1 and LM-1 kits) is rated to operate at an exhaust gas temperature of < 1300 degrees (F), and a sensor housing temperature of < 900 degrees (measured at the bung) for maximum accuracy and control. When either of these operating temperature ranges is exceeded, the sensor can no longer be accurately controlled. Further, operating at or over these temperatures for any length of time can significantly reduce the lifetime of the sensor.

8

that will help a little, but not much.

9

nice work, cool idea, not so effective… cant hurt.

10

what is it made out of ?

11

why not move the sensor farther down the pipe?

it sounds to me like its just way to close to the turbo.

12

its made out of industrial heat sink material, donno what grade of aluminium it is

and we may actualy win up moving it UP the pipe … in which case id have to fabricate a monster heat sink out of a an old oxygen sensor, some bar stock and 2 steel sheatsinks

13

why dont you just run the wideband for tuning purposes and then plug the bung the rest of the time?

14

pffft, then whats the fun of having the gauge on the pillar ?

lol… once it gets a proper tune, the sensor can come out, but untill then its staying in

15

if this was an issue, there would already be products on the market. It’s like designing a horn you actuate with your nose. Sure, it doesn’t exists, but there’s a reason why.

16

What are you using to provide the proper transfer medium to get the heat from the sensor to the heat sink? Air / a press fit isn’t really going to do all that much.

17

if the heat is that bad down there the heat sync will quickly become soaked and do nothing

18

http://splparts.com/Parts/Universal/Hardware/Fittings/heatsinko2bung.jpg

If it is a Bosch sensor you should have copied this design.

19

there are products on the market already …

and if we move the sensor to a position before the turbo, i will be making a complete heat sink assem out of steek that will work realy well

currently, this heatsink is just used like a washer, it goes directly between the sensor and the bung, and the area doesnt get to heat soked because its in the wheel well where ther is already decent airflow