LTX-12 and Tach compatiblity
07-30-03, 03:35 PM
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LTX-12 and Tach compatiblity
My tach is fine till 5500 RPM but after that it goes to 9000 RPM and sits there till I let off. Car runs fine and has no problems, is there a fix for the tach or is it a 20B compatibilty issue?
On start up the car has to be reved for about 15 secs, is this normal?
Please advise...
On start up the car has to be reved for about 15 secs, is this normal?
Please advise...
07-30-03, 06:38 PM
#4
Re: LTX-12 and Tach compatiblity
Originally posted by gohorns
My tach is fine till 5500 RPM but after that it goes to 9000 RPM and sits there till I let off. Car runs fine and has no problems, is there a fix for the tach or is it a 20B compatibilty issue?
On start up the car has to be reved for about 15 secs, is this normal?
Please advise...
My tach is fine till 5500 RPM but after that it goes to 9000 RPM and sits there till I let off. Car runs fine and has no problems, is there a fix for the tach or is it a 20B compatibilty issue?
On start up the car has to be reved for about 15 secs, is this normal?
Please advise...
still no word from anyone if the microtech will run the
20b's metering pump...
matt
07-30-03, 10:10 PM
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gohorns: Fuelling requirements change with water temperature. If the maps are off, the car will stall when cold.
Are you running the tach off the trailing coil like stock or from the Microtech itself?
now: No, the LT will not run the 20B-REW's MOP.
Brandon
BR7 Racing
Are you running the tach off the trailing coil like stock or from the Microtech itself?
now: No, the LT will not run the 20B-REW's MOP.
Brandon
BR7 Racing
07-30-03, 10:19 PM
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theoretically the e11 can output the right tach signal, hopefully in a few weeks i'll know fer sher
mike
mike
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07-30-03, 10:54 PM
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Originally posted by No7Yet
And that has what, exactly, to do with the topic at hand?
Brandon
And that has what, exactly, to do with the topic at hand?
Brandon
08-04-03, 11:07 AM
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if you have the tach hooked to the coils thats your problem. 20b = v6, 13b = 4cyl.
mike
mike
08-04-03, 01:02 PM
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what should the tach be hooked up to for it to work correctly? I had a professional mechanic with microtech exp do the install and he is telling me its a cmpatibility issue with the 20B.
anyone here have working tack up to 8000 rpm on a 20B using the LTX-12?
anyone here have working tack up to 8000 rpm on a 20B using the LTX-12?
08-05-03, 04:24 PM
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if you have the tach hooked to the coils thats your problem. 20b = v6, 13b = 4cyl.
mike
I've always heard that the 13b =v6, and 20b = v8, but even that sounds odd to me, I don't think you can really compare pistons to rotors, it's like apples and oranges
mike
I've always heard that the 13b =v6, and 20b = v8, but even that sounds odd to me, I don't think you can really compare pistons to rotors, it's like apples and oranges
08-05-03, 04:43 PM
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Originally posted by trianglesrbetter2
if you have the tach hooked to the coils thats your problem. 20b = v6, 13b = 4cyl.
mike
I've always heard that the 13b =v6, and 20b = v8, but even that sounds odd to me, I don't think you can really compare pistons to rotors, it's like apples and oranges
if you have the tach hooked to the coils thats your problem. 20b = v6, 13b = 4cyl.
mike
I've always heard that the 13b =v6, and 20b = v8, but even that sounds odd to me, I don't think you can really compare pistons to rotors, it's like apples and oranges
mike
08-05-03, 06:31 PM
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Originally posted by RETed
Doesn't that LTX have an aux out to configure a tach output?
I know the Haltech could do it.
-Ted
Doesn't that LTX have an aux out to configure a tach output?
I know the Haltech could do it.
-Ted
08-06-03, 01:51 AM
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I've not had one on a scope, so I can't say for sure. The interesting bit is that the tach's accurate until 5500 whereupon it pegs and stops. This isn't your typical 20B-swap scaling error. I'll see if I can't dig up any info.
Brandon
BR7 Racing
Brandon
BR7 Racing
08-06-03, 02:42 PM
#20
20B N/A Wide Body FC3S
Originally posted by No7Yet
gohorns: Fuelling requirements change with water temperature. If the maps are off, the car will stall when cold.
Are you running the tach off the trailing coil like stock or from the Microtech itself?
now: No, the LT will not run the 20B-REW's MOP.
Brandon
BR7 Racing
gohorns: Fuelling requirements change with water temperature. If the maps are off, the car will stall when cold.
Are you running the tach off the trailing coil like stock or from the Microtech itself?
now: No, the LT will not run the 20B-REW's MOP.
Brandon
BR7 Racing
This has nothing to do with your Tac problem, but I thought i'd throw it in there...
I plan on just putting in a Apexi' 360' tac and pretty much not using any of the stock guages other than the fuel level and if I can find what I need from summit racing that will be discarded as well..
08-07-03, 11:06 PM
#21
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micortech's tacho output is a square wave output, the problem is your factory tacho is for basically a 4cyl, the microtech running the 20b will be set as a 6cyl, dont think there is much you can do about it,
Dale
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08-07-03, 11:17 PM
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Originally posted by 10sec rx7
micortech's tacho output is a square wave output, the problem is your factory tacho is for basically a 4cyl, the microtech running the 20b will be set as a 6cyl, dont think there is much you can do about it,
Dale
micortech's tacho output is a square wave output, the problem is your factory tacho is for basically a 4cyl, the microtech running the 20b will be set as a 6cyl, dont think there is much you can do about it,
Dale
08-08-03, 05:08 PM
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Originally posted by banzaitoyota
Thanks for the link Evil! I knew the RX-7 Manglers were good for something
Thanks for the link Evil! I knew the RX-7 Manglers were good for something
Like my friend says, "Even blind squirrels find nuts once in a while".
Seriously though, there are a few good things on that site, and although I much prefer the rotary engine, I am not opposed to the V8 conversion like many other people. I also like this Capri hood scoop idea as an alternative to buying a TII hood for your NA.
http://members.tripod.com/~grannys/mazdarx8.html
However, don't look at any of the other scoops on that site if you have eaten within the last 3 hours, lol.
08-08-03, 09:06 PM
#25
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Originally posted by 10sec rx7
micortech's tacho output is a square wave output, the problem is your factory tacho is for basically a 4cyl, the microtech running the 20b will be set as a 6cyl, dont think there is much you can do about it,
micortech's tacho output is a square wave output, the problem is your factory tacho is for basically a 4cyl, the microtech running the 20b will be set as a 6cyl, dont think there is much you can do about it,
There is a "calibration" screw on the FC circuit board that you can adjust so the revs should match.  We normally calibrate the instrument cluster with a simple stand-alone uP to handle such adjustments.  You probably can do this by looking at the RPM display off your Microtech and adjust the needle until the RPM's correspond correctly.  I can't confirm if this works on an FD3S intrument cluster...
-Ted