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help tricking auto.....electronics guru 

 

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 Post subject: help tricking auto.....electronics guru
Posted: Wed Mar 30, 2005 7:23 pm 
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hi,
what im trying to do is replace the automatics temp sensor with a resistor.
when i do a burnout it puts the auto into limp mode.
its an eb2 btr 91le

my question is do i wire the resistor across the temp ground wire and the temp sensor wire? there for replacing the ford sensor. :?:

or do it just wire it into the temp sensor wire? inline.

i think its the first method but not 100% sure.
btw its a 2.7k ohms resistor

help from you electronic gurus would be greatly appreciated

thanks, michael

 

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Posted: Wed Mar 30, 2005 7:33 pm 
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I would think the first option is the go.

i.e. cut the sensor out of the picture all together and feed it a constant "everything is ok" signal.

But... one would have to ask why the sensor is sending BTR into limp home? Is it getting too hot?

 

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Posted: Wed Mar 30, 2005 7:44 pm 
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yes its only doing it when i stall it up for 10 sec +
or doing a burnout before i race.
never goes into limp mode with normal street driving.

thanks buddy

 

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Posted: Wed Mar 30, 2005 8:06 pm 
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Put a thermo on the transmission cooler?
Can't be good that it's getting so hot that it goes into limp home mode! :shock:

 

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Posted: Wed Mar 30, 2005 8:16 pm 
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voxace wrote:
Put a thermo on the transmission cooler?
Can't be good that it's getting so hot that it goes into limp home mode! :shock:


ive already got 2 280mm x 200mm oil coolers mounted in front brake ducts.
they are worth $150 each.
its a prob within the auto, eg the oil around clutch pack sits there too long.
heating it up just enough to trop limp.
btw it has a higher than stock stall

 

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Posted: Wed Mar 30, 2005 8:23 pm 
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I'd go for a tranny cooler first, then if you still have probs, go the trick.

And yeah I'd go option 1 too.

 

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Posted: Wed Mar 30, 2005 8:46 pm 
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like everyone eles has said if its getting to hot then fix that problem not trying to ignore the sensor that is doing its job.
other wise u will burn out ur trans in no time.
but if u really want to then it doesnt matter really which way u do it in the methods u described
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Posted: Wed Mar 30, 2005 9:18 pm 
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I think he's already got coolers - and the circumstance he's talking about is very specific to competition situation - the best would be to make the bypass resistor switchable so there's still everyday driving safety of having the normal sensor in action.

 

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Posted: Wed Mar 30, 2005 9:59 pm 
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thanks for replys guys.
ive just fitted it and stalled it up 4 times the the garage and its ok.
takes off in first.

real test will be at drags this saturday...

thanks again

 

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Posted: Wed Mar 30, 2005 10:09 pm 
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so do you have a tranny cooler?

Maybe getting a taxi spec one would be a good idea, save your box.

 

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Posted: Wed Mar 30, 2005 10:11 pm 
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He's got "2 280mm x 200mm oil coolers mounted in front brake ducts".

 

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Posted: Wed Mar 30, 2005 10:26 pm 
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ahhh, there was a post between when you said 'put a thermo...' and my post. I never read it. lol.

 

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Posted: Thu Mar 31, 2005 1:52 am 
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Pushing 255 rwkw through this box , 800+nm...
Everything has been done to prevent heat..

 

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Posted: Sun Apr 03, 2005 10:34 am 
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well the above mod didnt hold up to the demands of the drag strip.
anyone have an idea of what to try next???

thanks michael

 

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Posted: Sun Apr 03, 2005 11:14 am 
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power glider if u got 800 nm
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