Well, the engine is together and I'm preparing to install it and the Haltech. For those of you who have installed one on a 89-91, where did you mount the water sensor? The back of the water pump has two factory sensors in it already, so there's no room in the spot that the Hitman's website suggests. So I think I have two options.

A. Enlarge and tap one of the existing holes and dump the old sensor, but which sensor do I use. I want the factory water temp gauge to still work.

or

B. Drill and tap a new hole in the passenger's side of the water pump, but I don't know if there will be enough room there after everything else is in place.

Thanks

 

The sensor in the water pump with the green plug is the stock coolant temperature sensor. It gives the stock ECU the temperature, but not the gauge. The sensor for the gauge is in the driver's side of the rear housing.

Just remove the stock coolant sensor and tap that hole. You need to use a 3/8" NPT tap. That requires a 37/64" drill bit.

 

You may find this site useful for when you need to drill and tap holes: http://www.wwforum.com/faqs_articles/DrillChart.html .

 

Exactly what he said, or you could have specified you wanted the coolant temp sensor with the same thread as the rx7 has in it (that is possible)

 

I didn't know they made a sensor to bolt right in. That's cheating!

 

I found out about it about a week after i installed my E6K.

 

Don't feel bad. When I had to tap the air temerature sensor hole I spent $10 on the tap, but they only had a heavy duty 37/64" drill bit that cost $30! When I got home to put it in my drill I realized the bit was too big for my drill. I wound up using a pair of
vise-grips to turn the bit.

 

hehehe, i didn't have either so i borrowed the tap of a guy at work, didn't have a big enough dril bit so i just drilled a 6.5mm hole and filed it out until it was big enough .................

 

We should start our own racing team: Ghetto-Rigged Racing(GRR).

 

GRR Vrooom Vroooooooooom Putt Putt Plop Kapputt
yay for sound effects!

 

No, I'm just going to record this onto a CD:
http://funny-funny-pictures.com/insanity/

 

I already know what it is before going, i love that site

 

lmfao i just noticed an admin used the background of that site for the color of the main part of the RX-7 Forum. I bet it was BOOSTD7 cause he sure is insane, that shade of orange is implanted into his head and that picture is burned into his retinas

 

Yes, you're an insane freak.