Down in the IDI forum I tell everyone to install a pyro before they adjust the fuel screw in the IP.

And you can't get near the fuel out of a stock IDI IP that you can get with hot (Stage 2) Stroke injectors.

 

I was actually told that the difference in temps before and after the turbo is roughly 200 degrees. Most people go in the DP so metal shards dont get lodged in the turbo, correct?

 

IIRC from the test I can't find the thread for, at idle it was less than 100 deg. Hiway cruising and leaning on it was few hundred degrees, but wide open the difference was about 500 deg*!

 

It can be much more than a 200F difference. Also there is a huge lag in the temp reading from pre to post turbo temps.
Here's a post from rubberduck where he compared both probes simultaneously.....kudos to the duck:

https://www.ford-trucks.com/forums/7...s-for-tim.html

 

Cody Rocks! I put mine in before the turbo. I left the truck running so all the shards 'should' just blow through.

 

If that actually works, I'd consider doin it that way. Where exactly did you do it? Did you do it facing down trying to also use gravity?

 

Fordpride, thanks for the link. I will be getting a set when I get some $$$. Which exhaust Tem gage do you guys set the 1200 or 2400 degree? My guess is 1200

 

In my IDI I have Isspro.

Color coded for post or pre turbo, so you don't even have to read numbers.

When the needle hits red, you are playing with fire.

Manifold gauge



Downpipe gauge



Isspro has been making pyrometers for so long, they probably forgot more than some of the new companies know.

Over the years I can count the failed thermocouples I have seen on one hand.

Melted pistons from engines with no pyrometer, could not haul away with a wheel borrow or three.

I have not learned this yet about the Strokes, but are the stock pistons hypereutic aluminum like they are in the IDI?

If so, then 1250 is about as hot as you want to get them for a minute or two, 1100 or so for pulling a longer hill.

I know some of the truck pull guys just put tape over the pyrometer, but most of them are not expecting the engine to last 10 plus years anyway.

My thought of calculating heat loss thru the turbo, why guess how much heat it is soaking up?
Do I subtract 100, 300 or 500 degrees.
Just stick the thermocouple in an exhaust port, and read the gauge.

No figuring hot day, been pulling this hill hard for 40 minutes, how much do I subtract?

One of my favorites, out in the plains bucking a head wind, drop two gears and been there fighting it for 10 hours trying to get back to Denver.
Three hours behind schedule, pyrometer as high as I dare, coolant temp as high as I dare, and the engine oil hot enough to cook fries.

 

jchosler, that is correct. If you look underneath, the driver's side manifold is pretty easy to get at too.