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megasquirt air temp sensor
Posted: Wed Apr 25, 2012 1:47 pm
by demo2
Just wondering where u ms guys have located the air temp valve on the rover? near the airfilter, near the plenum?
Also does anyone know what thread it is?
cheers
Posted: Wed Apr 25, 2012 3:50 pm
by DaveEFI
My SDI started out with flapper injection - so I replaced the flapper with a bit of ally tube when I went MS. I fitted the ATS in that.
Posted: Wed Apr 25, 2012 7:54 pm
by Coops
mine lives here Biatch
Posted: Wed Apr 25, 2012 10:21 pm
by demo2
I allready saw that pic sliag, so does any1 know what thread it is?
Im gonna try and do away with the y piece in the intake so it has two hoses straight into the airfilter housing, cant see the point of having 2 pipes squeezing down to one now dont need a/f meter.
Posted: Thu Apr 26, 2012 12:26 pm
by DaveEFI
demo2 wrote:I allready saw that pic sliag, so does any1 know what thread it is?
Im gonna try and do away with the y piece in the intake so it has two hoses straight into the airfilter housing, cant see the point of having 2 pipes squeezing down to one now dont need a/f meter.
One I bought was M18 x 1.5. Pretty common thread for this sort of thing.
Posted: Thu Apr 26, 2012 1:35 pm
by demo2
cheers Dave
Posted: Thu Apr 26, 2012 8:21 pm
by SimpleSimon
The often supplied Megasquirt GM open type sensor is a 3/8" NPT thread, I purchased the weld in ali bungs from the states
the above M18 x 1.5 size is a common WB sensor thread.
Posted: Thu Apr 26, 2012 10:24 pm
by DaveEFI
The sensor I have came from Ebay and has the same electrical characteristics as GM. And, indeed, the one fitted to the flapper. I've a feeling there are two common thread sizes - the US one obviously imperial.
Posted: Fri Apr 27, 2012 11:55 am
by daxtojeiro
Hi,
I would keep it away from external heat sources if possible, as it can alter the tune if it gets heated from the exhausts.
I always recommend the air filter if your in doubt, but thats only for NA applications,
Phil
Posted: Fri Apr 27, 2012 12:14 pm
by demo2
cheers Phil, tats what i was thinking, gotta make a new filter housing 2 take 2 pipes as wanna do away with the y piece on twin plenum, may gain a few extra ponies
Paul
Posted: Fri Apr 27, 2012 1:05 pm
by DaveEFI
daxtojeiro wrote:Hi,
I would keep it away from external heat sources if possible, as it can alter the tune if it gets heated from the exhausts.
I always recommend the air filter if your in doubt, but thats only for NA applications,
Phil
Interesting, Phil. Are you implying the original Lucas position on the SD1 - ie inside the flapper - was less than ideal? This does get some heat from the exhaust manifold especially when stationary. Might explain a few things...
Would it be better in the air filter on one of these? At the moment mine is in a tube which replaces the flapper, but would be easily re-positioned.
Posted: Tue May 01, 2012 8:17 pm
by daxtojeiro
DaveEFI wrote:daxtojeiro wrote:Hi,
I would keep it away from external heat sources if possible, as it can alter the tune if it gets heated from the exhausts.
I always recommend the air filter if your in doubt, but thats only for NA applications,
Phil
Interesting, Phil. Are you implying the original Lucas position on the SD1 - ie inside the flapper - was less than ideal? This does get some heat from the exhaust manifold especially when stationary. Might explain a few things...
Would it be better in the air filter on one of these? At the moment mine is in a tube which replaces the flapper, but would be easily re-positioned.
Hi
If youve got no issues where it is then leave it alone
You can always compensate for it in the tuning software.
If it is going lean due to heat soak, youll notice this when you sit in traffic for a while or if you turn the car off, then re-start the engine after 5 mins and it goes lean until youve driven for a while. If it does that then move the sensor
Phil