Howard Coleman

iTrader: (6)

the very fast acting Teamrip.com thermocouples cost $45 each. so maybe i have $125 in my twin digital loggable EGT.

as for the tips melting... i have 12,000 miles of hard driving on mine and they seem to be all there.

i did a pre and post turbo log last year and found a huge varience in the difference depending on throttle position. i concluded that post turbo was semi-worthless. i also noted at full throttle there was around 300 degrees diff not the commonly reported 200.

howard coleman

NissanConvert

iTrader: (1)

Teamrip.com is temporarily shut down.

Node

iTrader: (1)

yeah, same thing nissanconvert said.

and this stuff is slightly confusing to me.

does the simplecircuit part just convert the EGT signal to something that is easily dataloggable on a standalone, or does it do something other than that.

I want to log wideband (5v output), and both rotors pre-turbo and do one post turbo.
Scrap the OE style EGT and run all 3 of the same so that you don't have any possibilities of differences from type/brand.



Howard: what type of sensor do you use to log intake air temps? I've been thinking about ideal placement on the intake manifold, and some sort of heat shielding to keep it from heatsoaking.
I'm ceramic coating the outside of my intake manifolds. Using some of the phenolic gaskets would help w/ heatsoak through the flanges from engine > LIM > UIM.

Possibly some sort of metal box around the outside of the sensor. Not sure how extreme I should get with protecting it from heatsoak, but I don't see any reason not to have lots of overkill

I would like to log fuel pressure too, and if I have any other inputs left after everything else is wired in I may add another intake temp sensor or two. Would be great to learn how everything reacts.

-Ben Martin

stevemack

Does this set up above (with the twinmani) work if you're still sequential?

NissanConvert

iTrader: (1)

as long as there's heat coming out of your engine. the probes are in the manifold, that system would work on a honda civic if you got two more probes.

www.teamrip.com is back up

Instead of using that amplifier to change the voltage i think you could use a digital PID to both display your temp and support 5v out.

chinaman

Howard, will you list all the parts you used and possibly a diagram on how you hooked them up? I'm more of a hands on and visual guy. Thanks for your time. Very informative thread.

cozmo kraemer

I would like this info too. I think this could be an incredibly useful tool!

Howard Coleman

iTrader: (6)

i recently had a couple of PMs on EGT systems, (it's that time of year) and refreshed some info so i thought i'd share....

first off... Team Rip is back up and selling (again) their VERY fast thermocouples. $47 per incl bung and connectors to your 18 gauge wire to the module. this is good news as i have run 2 of them for 3 seasons and they work great.

it always amazes me how fast they react. no lag that i can measure.

EGT module.... i switched to 2 modules from O2 simulator link:
http://www.o2simulator.com/index.php...f8bc20273b59bd

$45 per. i ran them all last year. they are tiny and work well.

calibration:
you can get it from Analog Devices site under AD595. i use:

2,554 V = 932 F
4.617V = 1652 F.

i think that's my current calibration so verify w the site. it is given as 10V so you need to divide by 2 as that is what the module does.

hc

cozmo kraemer

Thank you Howard! I will have to see if I can put this together before I tune the car.

jkstill

iTrader: (11)

Folks here my be interested the the Dual EGT setup offered by Pineapple Racing:

Dual EGT Kit

This is what is in my FD. I *think* this is also what afgmoto1978 has in his.

I've look around at other Dual EGT gauges, and no others have a temperature range so suitable for the FD (1100- 2000f)

cozmo kraemer

This is an electronic setup that we can use on the aux inputs to the Dataloggit on the PFC. This allows for logging the EGT. I think the Pineapple thing is just a guage. It doesn't output to the Dataloggit, but I could be wrong.

arghx

iTrader: (3)

Howard, this setup can only read up to 1600 degrees? I used to have a single channel autometer after the turbo and it pegged pretty quickly at 1600 from running it on a road course.

jkstill

iTrader: (11)

No, it does not have an output to the Datalogit. It is probes and a gauge.

Howard Coleman

iTrader: (6)

my setup reads to 2000 degrees. perhaps you are confused by my calibration number... that was at less than max volts.

hc

arghx

iTrader: (3)

ok I completely forgot about this thread. I am still interested in doing this but I am REALLY broke right now so I haven't bought anything yet. Just to confirm your datalogit settings though,




is this it? Or by calibration do you mean some other part? It's just the thermocouples with the thingie from the o2 simulator website right? Sorry if I am not understanding this whole process. I haven't bought the parts yet.

I would be installing these O2 bungs into an HKS cast iron log manifold and I don't have a welder, nor does my normal welder guy have the capability to weld steel to cast iron reliably. What is another way I could install this?

Also, where did you get your stuff to datalog fuel pressure? I have an aeromotive FPR and I would just remove the little mechanical guage on the NPT port and hook a 0-5v sending unit in?

Howard Coleman

iTrader: (6)

FJOracing.com has a really nice pressure regulator for a friendly price. i am datalogging fuel pressure, exhaust manifold pressure and oil pressure w their units.

i will chech my other computer for the datalogit egt settings... they come from the Analog Devices site.

hc

NissanConvert

iTrader: (1)

exhaust manifold pressure?

arghx

iTrader: (3)

if you could post a screenshot of your auxilary input settings that would be very useful for everyone. Then I can be sure I have everything set up right. I may just go ahead and buy the FJO pressure sending units. I presume you are using the 100psi sender for fuel pressure, and the 50psi sender for exhaust backpressure?

Howard Coleman

iTrader: (6)

yes, EMP... exhaust manifold pressure. i have a bung in the tube between the engine and a turbo. i run a stainless steel line about 2.5 ft from the motor to the sensor. no problems w heat/sensor.

i run two Garrett TO4 turbos. each is completely separate and services only one rotor. two three inch downpipes. etc.... since i have something a bit, uh unique, i really needed to know what's going on, and therefore the EMP monitor.

at 15.8 psi boost i have 16 psi EMP. i have been logging it for 3 seasons.

screenshot re auxliiaries sunday.

hc

neit_jnf

iTrader: (17)

you mean each turbo is driven by one rotor's exhaust or do you have a custom intake manifold and tb setup so that each turbo boosts only one rotor as well?

NissanConvert

iTrader: (1)

why wouldn't you merge the charge pipes to equalize the boost pressure across the rotors? What happens in case of catastrophic turbo failure?

I should have realized that. Your dataloggit would already log boost yes?

Howard Coleman

iTrader: (6)

output of each turbo merges into the intercooler. the 2 downpipes merge at the midpipe.

hc

arghx

iTrader: (3)

not to be a pest or anything, but did you ever get a chance to get a screenshot of those settings? thanks

Montego

iTrader: (1)

good thread. Especially since I'm in the market for an EGT gauge

Howard Coleman

iTrader: (6)

the proper calibration is:

2.554 V ======932
4.617 V ======1652

your numbers in post 40 appear to be correct.

reads to 2000F

degrees are F

hc