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Thread: Adding additional coolant temp sensor?

  1. #1
    Join Date
    Feb 2005
    Location
    Jacksonville Florida
    Posts
    696

    Adding additional coolant temp sensor?

    I wanted to add an additional temp sensor to the Marauder.

    Since the car hasn't sold or traded yet, I just ordered $600 worth of Spal fans, controller, and wiring.

    To get the best signal for the controller, I ordered their temp sensor as well. It is 3/8's pipe thread. Spals controller can tap into the signal of the factory sensor but even Spal talks about some inconsistencies in the 'Ford Modular Coolant Temp Sensor Signals'.

    Has anyone added an additional temp sensor? Where did you tap into? I assume just buying adapter plumbing parts at home depot and using a 't' to adapt where one of the factory sensors screw in.
    2003 MARAUDER ---SOLD---
    -MOD LIST-
    Ø MMR Race 1100 shortblock, Polydyn coated pistons
    Ø Pro Turbo Systems turbo kit with Precision 76GTS turbo with polished H compressor housing
    Ø Ford GT Complete Cylinder Heads (Cams, Springs, Retainers, etc)
    Ø Twin Ford GT fuel pumps, -8 braided stainless lines and billet rails
    Ø Custom All Metal Cowl Induction Hood

  2. #2
    Join Date
    Jan 2003
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    Near Knoxville TN
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    10,717
    What I would do for the best possible control signal is put a pipe thread bung in the main section of the coolant crossover tube. After the passenger's and driver's side outlets connect together into the main tube but before the hose Tees off and goes down to the thermostat.

    The easiest way is probably to do what I did. Get a thermostat housing from a MkVIII. The fitting for the coolant overflow reservoir connects to the thermostat housing instead of a Tee into the bottom hose. Take out the hose fitting and tap it for 3/8" NPT. Downside is that point is post-radiator so it lags the coolant crossover tube temperature reading as well as being cooler. That's where I put a sensor for my transmission controller.

    Another option is to connect a temp sensor to a remote oil filter adapter. Most of them have extra fittings that have to be plugged off. From the feedback I've gotten the oil temperature and water temperature are virtually the same.
    Thanks to Darrin @ BC Automotive:
    $1800 and it was worse than when he started!

    Brian (FordNut) FPG # 1458 of 7838
    03 MM 300A (Lotsa mods, 130k mi) was 303rwhp/318rwtq N/A
    then 476/410 D1SC ProCharged on stock block
    then 660/555 D1SC PC on 5.3 wet sleeved Teksid alum big bore stroker
    then 365/369 N/A on 5.3 wet sleeved Teksid alum big bore stroker
    Now 751/617 3.4L Whipple on 5.3 Boss5.0 iron big bore stroker

    03 MM 300B Silver (Mostly stock, originally wife's car, 370k mi) FPG # 7053 of 7838 or 49 of 417 SB
    03 MM 300B Silver, Stock, wife's next one, 136k mi FPG # 7134 of 7838 or 89 of 417 SB
    04 MM Silver, Stock, on standby 85k mi, FPG # 1212 of 3214 or 432 of 997 SB
    01 F150 longbed
    01 F150 shortbed
    00 F150 4x4 stepside
    01 F150 4x4 7700
    68 Stang FB (70 351C 4V, 4 wheel discs, project car)

    Mods listed here (some items not current): FordNut's Mods

  3. #3
    Join Date
    Feb 2005
    Location
    Jacksonville Florida
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    Cool, thanks bro.. That might be a good option.

    I just found another possible option. http://www.prodata-net.com/2003Cobra...empAdapter.htm

    It is a adapter that goes in the crossover tube. I just need to see if the adapter with a Spal temp sensor will clear the hood. I think it will.

    But that thermostat housing may be good. The spal controller is computer controlled. And can be set to any temp. So worst case I just adjust the temps to account for it reading after the radiator.


    Quote Originally Posted by FordNut View Post
    What I would do for the best possible control signal is put a pipe thread bung in the main section of the coolant crossover tube. After the passenger's and driver's side outlets connect together into the main tube but before the hose Tees off and goes down to the thermostat.

    The easiest way is probably to do what I did. Get a thermostat housing from a MkVIII. The fitting for the coolant overflow reservoir connects to the thermostat housing instead of a Tee into the bottom hose. Take out the hose fitting and tap it for 3/8" NPT. Downside is that point is post-radiator so it lags the coolant crossover tube temperature reading as well as being cooler. That's where I put a sensor for my transmission controller.

    Another option is to connect a temp sensor to a remote oil filter adapter. Most of them have extra fittings that have to be plugged off. From the feedback I've gotten the oil temperature and water temperature are virtually the same.
    2003 MARAUDER ---SOLD---
    -MOD LIST-
    Ø MMR Race 1100 shortblock, Polydyn coated pistons
    Ø Pro Turbo Systems turbo kit with Precision 76GTS turbo with polished H compressor housing
    Ø Ford GT Complete Cylinder Heads (Cams, Springs, Retainers, etc)
    Ø Twin Ford GT fuel pumps, -8 braided stainless lines and billet rails
    Ø Custom All Metal Cowl Induction Hood

  4. #4
    Join Date
    Jun 2007
    Location
    Woodstock Georgia
    Age
    45
    Posts
    1,491
    Does this mean your keeping it? If you are I will have to come pay you and Landy a visit to see this beast in person.
    04 SB MM RIP 4/24/09
    Number 553 of 3213 04s, 208 of 993 Silvers 04s

    03 SB MM (the new girl)
    Born 5/15/2003, Adopted 7/17/09
    Number 7458 of 7838 03s, 225 of 417 Silver 03s

    Mods: K&N CAI, 180° stat, SW headers, custom 2.5" h-pipe exhaust from headers to tips w/Dynomax VT mufflers, Part of the Art Carr Stage 2 tranny kit, rebuilt with Alto Black bands and clutches, deep transmission pan, big ass trans cooler, PI 3.5k rpm Triple disk TC, Dynotech 4" driveshaft, Metco Drive shaft loop and rear CA's, Addco front and rear sway bars, just a bit of powder coating, stock size performance brake upgrades, QA1 shocks in the rear with KYBs in the front, and replaced every stock suspension bushing. Tuner's Inc tuned 298 rwhp/306 rwtq
    .


  5. #5
    Join Date
    Feb 2005
    Location
    Jacksonville Florida
    Posts
    696
    Unfortunately the guy got back with me last night and said he no longer makes this part. Nothing can be easy, right......

    So I may go for the thermostat housing. Will look at it over the weekend.




    Quote Originally Posted by Todd View Post
    Cool, thanks bro.. That might be a good option.

    I just found another possible option. http://www.prodata-net.com/2003Cobra...empAdapter.htm

    It is a adapter that goes in the crossover tube. I just need to see if the adapter with a Spal temp sensor will clear the hood. I think it will.

    But that thermostat housing may be good. The spal controller is computer controlled. And can be set to any temp. So worst case I just adjust the temps to account for it reading after the radiator.
    2003 MARAUDER ---SOLD---
    -MOD LIST-
    Ø MMR Race 1100 shortblock, Polydyn coated pistons
    Ø Pro Turbo Systems turbo kit with Precision 76GTS turbo with polished H compressor housing
    Ø Ford GT Complete Cylinder Heads (Cams, Springs, Retainers, etc)
    Ø Twin Ford GT fuel pumps, -8 braided stainless lines and billet rails
    Ø Custom All Metal Cowl Induction Hood

  6. #6
    Join Date
    Feb 2005
    Location
    Jacksonville Florida
    Posts
    696
    Quote Originally Posted by cougar9150 View Post
    Does this mean your keeping it? If you are I will have to come pay you and Landy a visit to see this beast in person.


    Well, I have a few guys thinking about trades. One guy that is waiting for some money to come through. So if it goes, it goes.

    I love the car. I just want to move on. So it is still for sale. But I wanted to get the couple things that I wanted done, done. So there are no excuses for it not selling except people just not having the money.

    In the mean time, I will put these fans on and run it!!!!
    2003 MARAUDER ---SOLD---
    -MOD LIST-
    Ø MMR Race 1100 shortblock, Polydyn coated pistons
    Ø Pro Turbo Systems turbo kit with Precision 76GTS turbo with polished H compressor housing
    Ø Ford GT Complete Cylinder Heads (Cams, Springs, Retainers, etc)
    Ø Twin Ford GT fuel pumps, -8 braided stainless lines and billet rails
    Ø Custom All Metal Cowl Induction Hood

  7. #7
    Join Date
    Jul 2006
    Location
    South Haven, Mich.
    Age
    71
    Posts
    6,071
    Great to see you posting again Todd!
    [SIGPIC]

  8. #8
    Join Date
    Jun 2003
    Location
    McDonough, GA
    Posts
    2,394

    Thumbs up Oil Filter Adapter ===

    The easiest and quickest location is the bottom of the oil filter adaptor. It has a plug in it for sensors, etc. It will read oil temperature, but as Brian said it should be nearly the same. I have an oil temperature sensor in mine and it basically also indicates water temperature. Keep in mind the oil filter adapter also carries coolant as well as oil. I can't image that the temperature at this location wouldn't work for your application.

    Glenn Ford
    Trilogy #124 SOLD - 8/2014
    11.80 @ 117.16 MPH: SSHS9
    1.74 sec - 60'
    443 RWHP/437 RWTQ
    "Stock Internal Engine" - Click Below

  9. #9
    Join Date
    Jun 2007
    Location
    Woodstock Georgia
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    Quote Originally Posted by Todd View Post
    Well, I have a few guys thinking about trades. One guy that is waiting for some money to come through. So if it goes, it goes.

    I love the car. I just want to move on. So it is still for sale. But I wanted to get the couple things that I wanted done, done. So there are no excuses for it not selling except people just not having the money.

    In the mean time, I will put these fans on and run it!!!!
    That was my main issue, it was almost doable but I would have been asking the wife to make a couple big sacrifices. She was willing but really wants to finish remodeling the house this year so we can sell and get a bigger one, then it is baby making time. Didn't want to ask her to put having kids on hold for another couple of years.

    Enjoy it while you still have it and if you need some help on the work feel free to hit me up. I would love to just see the setup let alone help you improve it.

    Phil
    04 SB MM RIP 4/24/09
    Number 553 of 3213 04s, 208 of 993 Silvers 04s

    03 SB MM (the new girl)
    Born 5/15/2003, Adopted 7/17/09
    Number 7458 of 7838 03s, 225 of 417 Silver 03s

    Mods: K&N CAI, 180° stat, SW headers, custom 2.5" h-pipe exhaust from headers to tips w/Dynomax VT mufflers, Part of the Art Carr Stage 2 tranny kit, rebuilt with Alto Black bands and clutches, deep transmission pan, big ass trans cooler, PI 3.5k rpm Triple disk TC, Dynotech 4" driveshaft, Metco Drive shaft loop and rear CA's, Addco front and rear sway bars, just a bit of powder coating, stock size performance brake upgrades, QA1 shocks in the rear with KYBs in the front, and replaced every stock suspension bushing. Tuner's Inc tuned 298 rwhp/306 rwtq
    .


  10. #10
    Join Date
    Mar 2007
    Location
    Lehigh Valley, PA
    Posts
    5,956
    Quote Originally Posted by Todd View Post

    In the mean time, I will put these fans on and run it!!!!
    Please X1000 get some good videos, i wanna hear the turbo!


    2016 Ford Mustang GT PP - Lund nGauge, BMR vertical links, MGW Shifter, BMR CB005

    2004 Mercury Marauder - Eaton M112, Billetflow 3.4, Accufab SBTB + Plenum, T-56 Magnum, 4.10s, Stainless Works LTs, 2.5" Exhaust, Borla Stingers, Ridetech Coilovers + Adj rear shocks, FX-R projectors, Wilwood 13" BNSL6 + FNSL4 BBKs, S55 Gauge Cluster
    440rwhp & 406rwtq Tuned by Adam @ Revolution Automotive
    2063/3214

    (Sold) 2003 Mercury Marauder - Stainless Works LT's, Stainless Works 2.5" Catback, JLT Intake, Mo's Xcal4 Tune
    5377/7838

    2000 BMW M5 - Evolve Intake, Evolve Alpha-N tune, Stoptech ST-40 BBK, UUC SSK, Dinan front STB, Dinan RSB

    1996 Ford Bronco - 4" lift, 35" BFG A/T's, Punisher Valve Body, MH1 Projectors

  11. #11
    Join Date
    May 2007
    Location
    Massapequa Park
    Posts
    585
    The evenflow cooling mod company makes an adapter for temp sensors that fits in one of the two rear freeze out plugs. If your car doesnt have the head cooling mod this may be an option.

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