High speed inlet temp sensor

Started by Jonathan_F, June 05, 2006, 05:51:12 PM

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Jonathan_F

June 05, 2006, 05:51:12 PM Last Edit: March 04, 2007, 09:06:56 PM by Glenn Butcher
Hi. Just to let you know know that I have found a direct replacement inlet temperatur sensor. It is used on some motorcycles. It does have a different plug though. Thread is the same.
 
It calibrates the same (I tested at 5°C and 40°C) but reacts about 20 times more quickly.
 
Now when accelerating from 30 to 120mph I can watch in real time the inlet temperature increasing as the intercooler heatsoaks. Which means my ecu can too and correct the fuelling.
Pip won\'t have to run such a large safety factor when he maps it also perhaps. Saving me petrol. Result!
 
If anybody is interested I can find the part number for you. Pm me.
 
Jon

arrouk

#1
June 05, 2006, 06:27:22 PM
i would be interested to know both the part no. and also any views other members or tuners have on this.

matt

sdminus

#2
June 05, 2006, 06:54:58 PM
john could you email any details you have for it sdminus@yahoo.co.uk

Did you see my thread on the topic. I dataloged a run which displayed the rate from which the sensor reacts

Scott

Prof

#3
June 05, 2006, 07:30:15 PM
I\'m interested in this, as I want to run an eManage and Water Injection, and was going to use the inlet temp sensor as a secondary control - limit things when the temps get too high  :2eek

The stock inlet temp probe on an FC is a small NTC thermistor, in a little screwed plug.  It has hardly any thermal inertia, as its mounted in the air stream, but does seem to be a little sluggish to react to temp changes.

Do you have a link for your thread ?
"Plus this engine is probably one of the most volumetric engines going! It passes more air than a herd of cows eating vindaloo\'s" - courtesy of AtomicRex

shaunwil

#4
June 05, 2006, 09:27:48 PM
ooh, yes please. I think anybody running water injection or uses a bigger intercooler will greatly benifit from it ! My email is shaun.wilmer@btinternet.com

Anything to make sure its running happily !

Shaun
1994 White FD with A-spec GT3574R - 358bhp at the hubs at 0.9bar :3gears-lh
2003 Mondeo 2lt 130ps Diesel Estate Daily :driving

DRAGON

#5
June 06, 2006, 09:05:48 AM
Well-done good find! I would be interested to know the part number.

Jit

#6
June 06, 2006, 09:28:53 AM
hey john, that is a good find! Nice one! But will this make any difference on the stock early spec ECU (non 16bit) i terms of fuel economy?

Jonathan_F

#7
June 06, 2006, 06:42:24 PM Last Edit: March 04, 2007, 09:06:24 PM by Glenn Butcher
Crikey!! Yes i\'m on it.
I can get the vendor info and perhaps some of our vendors (Dragon??) can sell them or its been suggested a group buy. I cannot buy them myself but I have a few \'scrap\' sensors lying around.
 
I shall let you all know what Pip thinks. Its booked in for next wednesday.
Jon
 
One2watch. I believe they will work with all ecu\'s. Please check the calibration of your sensor before fitting. (Measure the resistance of both in hot and cold water. Should correlate within 5% I should say to be safe. You can see the speed difference nicely too by swapping from hot to cold water.)

Jonathan_F

#8
June 06, 2006, 06:43:56 PM
Quote from: sdminusjohn could you email any details you have for it sdminus@yahoo.co.uk

Did you see my thread on the topic. I dataloged a run which displayed the rate from which the sensor reacts

Scott

Have you a link to the thread?
I would b interested to see if mazda kept the slow sensor all through production. My car is a 92 import.

Jon

Jonathan_F

#9
June 06, 2006, 06:46:59 PM
Quote from: ProfI\'m interested in this, as I want to run an eManage and Water Injection, and was going to use the inlet temp sensor as a secondary control - limit things when the temps get too high  :2eek

The stock inlet temp probe on an FC is a small NTC thermistor, in a little screwed plug.  It has hardly any thermal inertia, as its mounted in the air stream, but does seem to be a little sluggish to react to temp changes.

Do you have a link for your thread ?

It is coated in plastic. Low thermal inertia but high thermal resistance! Air isn\'t exactly a good conductor either. I think another problem is heatsoak from the brass bass of the plug pouring heat into the sensor.
The plastic inlet elbow is nicely thermally isolated. Best location IMHO

Jon

sdminus

#10
June 06, 2006, 08:46:34 PM

Jonathan_F

#11
June 07, 2006, 05:40:43 PM Last Edit: March 04, 2007, 09:07:55 PM by Glenn Butcher
Quote from: sdminushttp://www.mazdarotaryclub.com/forums/showthread.php?t=26339
 
Scott
 
sdminus@yahoo.co.uk
I have a full notepad datalog if you want it

Thanks for the link. Yes I concur. I was surprised also at how slow it reacts. With the part It allows much closer tuning of fuelling I believe so we can run with less safety factor.
 
I wonder what supras+skyline sensor speeds are like?? Anybody know??
 
I think most people will be surprised at just how hot their inlet temps actually
get.
I could do with a datalogging setup. Do you use dattaloggit from NZ and a laptop?
 
 
 
Jon

shaunwil

#12
June 07, 2006, 06:15:01 PM
Do you have a link, couldn\'t find anything through google ????

Cheers

Shaun
1994 White FD with A-spec GT3574R - 358bhp at the hubs at 0.9bar :3gears-lh
2003 Mondeo 2lt 130ps Diesel Estate Daily :driving

Jonathan_F

#13
June 07, 2006, 06:23:53 PM
ELMWOOD SENSORS,ELM ROAD,NORTH SHIELDS, TYNE AND WEAR 0191 258 2821

Don\'t mention my name please.

Matt.

sdminus

#14
June 07, 2006, 08:02:22 PM Last Edit: June 07, 2006, 10:56:35 PM by sdminus
Johnathan. Yes i use the FC datalogit. On the way back from RS3 i managed to get the sensor down to -13 deg C after i chased a CBR up the A6 The ambiant was about 11deg according to ollies mazda 6 shed drager LOL :Laugh

Scott
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