This is so stuipd. Ok, I ordered a fan switch from Hypertech, go to install it, to big. Take it back, get a Jet fan switch (I checked the part numbers, all of them are right) this senser is even bigger than the one before so this is not ever going to fit. So what is up here? Anyone with a 305 that put a fan switch in there car know what I can do? I am thinking of just putting a manual switch on there. Help me out, thanks.

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Eric Natzke
91 Firebird 305 TBI (dropping in a 355 summer of "01")
Edelbrock TES Headers, P265/50/R15's, MSD 8.5mm superconducters,TBI Spacer,Accel Cap & rotor,180 Fan Switch,160 Thermostat,Hypertech Thermomaster,TransGo ShiftKit,B&M Supercooler, March pulleys,Dynomax 3" Cat-Back w/ flowmaster muffler,Smog pump and AIR pulled, Edelbrock Strut Tower Brace, 3:73 Richmond Gears and K&N 14x3 open element.

http://hometown.aol.com/J007Golden/index2.html

 

Where are you trying to install this sensor?
The fan temperature sensor/switch is located in the right(passenger) side head, above the starter.

 

The fan temp sensor is between the last 2 spark plugs on the pasenger side block under the exhaust manifold. I put a hypertech fan temp sensor in my brothers 88 formula 305 .....it fits in there but its a tight fit, and at first I thought it didnt fit but there wasnt alot of room for me to stick my fingers in there and tighten it. I finaly got it in there and tightened it up and so far I havent had any problems yet. Good luck and take your time, cause you dont want to mees up the threads on the engine block.

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88 Iroc 305 TPI 5 speed
Performance Resource Chip, Flowmaster American Thunder cat back exhaust, B&M Ripper shifter, MSD coil, TB bypass, TPIS MAT relocation kit , TPIS 170* t-stat, Richmond 3.73 gears, March Power & Amp pullies, Ported Plenum
First time at track: 14.781 @95.13 mph , & 2.204 60'

 

Thats the one.