Jeff N.

Anyone know the correct part number?

I understand it mounts in the oil drain plug, is that also correct?

http://www.egauges.com/vdo_send.asp?Sender=300F_150C

TIA!

Jeff

reno808

1/8-27 NPT thats that size if have, however i mounted mine on that banjo oil drain bolt. its sits right under the turbo.

Jeff N.

OK. Anyone have the pan size?

That raises a great placement question - is it better to put the sender on in pan or under the turbo?

I would expect the turbo reading to be hotter but is that what I want to measure?

reno808

yes you want the oil temp coming from the turbo becuase thats going to be the hottest reading you can get as far as oil temp goes

KuHL 951

I'm not sure but the turbo drainback oil is after any pressure drop and is gravity flow if you only run one temp gauge. It picks up substantial excess heat from the turbo that really isn't indicative of what the general engine is seeing. In addition I doubt that any immprovements in oil cooling will influence that reading very much due to relatively constant turbo operational temps. Mine is a combo drain plug/temp sensor that reads the actual oil temp of pooled oil ready to be used for lubrication. Personally I feel the lower pan sump is a more accurate and useful location than the turbo return and will indicate changes made to the oil/water cooling systems better. I'm sure others will disagree though.

brad-cam

I agree with Steve. The important temp is the temp of the oil about to be pumped into the bearings. The drainplug is most convenient for this. Pan plug is M20. You can pick up a generic one in this size at any parts place and drill+tap for 1/8-27 NPT.

My oil temp at the drain plug runs 180-190 degrees on the highway and 210-220 in stop-and-go traffic.

reno808

my car runs 180 on the highway and 210 in traffic.

ausgeflippt951

When installing the sender to the plug, yes or no to teflon tape? I'd expect no...

reno808

YES. you should its a very good idea.
1. brass on steel not a good combo.
2. if you want any leaks from there so dont put it on.

ausgeflippt951

oh ok thanks. this is the next thing I'm gonna do w/ the car.

reno808

make sure you route it real nice and have good insullation thru the fire wall and all. and have a good ground. I put some of that fire protect stuff on the wire since the wire is real thin.

ausgeflippt951

yeah definitely. Thanks mate.

reno808

no prob. You know which guage your getting??? I have the AutoLite prolite series works really well and it comes the sending unit as well. Its like 40 45 bucks from summit. Comes with everything you need besides the acutal wire