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| The Getrag F23 Tutorial - By Emc209i (Page 15/28) |
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Jncomutt
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FEB 06, 09:37 AM
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| quote | Originally posted by Trinten:
To my knowledge (ie, not a fact!), Jncomutt was not able to get his ECU to play nice with converting the signals, but in short, you need to get the ECU to translate the signal. |
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This is correct. I was NOT using a GM PCM, and therefore didn't have that speedo OUTPUT to use. My ECU read the sensor from the transmission just fine with no converting whatsoever. However, since my ECU doesn't have a speedo out, I was unable to get my speedo accurate using the old dip-switch style DD Converter directly between speedo head and transmission. I didn't spend much time with it, just plugged it in and flipped the switches, it was close at driving speeds but horrible at parking lot speeds. I just said screw it, and learned my rpms per gear and would occasionally glance at my tablet display.[This message has been edited by Jncomutt (edited 02-06-2013).]
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BlownFiero86
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FEB 06, 11:34 PM
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The original trans seeding unit puts out 4,000 ppm (pulses per mile) and all the newer trans outputs are 24,000 ppm. I use the same cicuit and wired it in from the speed out of the CPU to the dash. I installed mine on a waffer disc and put it inside a relay housing that I gutted. I then mounted it on the passenger side with the fan and fuel pump relay. Mine is working great and by checking multiple time by GPS it is incredibly accurate. The parts only cost a few bucks at radioshack and was really easy to install.
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86GT, 3800SC, F23, true duals, 3.4 pulley, comp VS cam, zzp power log, WCF air intake, ARP bolts, comp lifters and push rods, 90# springs, SI stainless valves, aero-force scantech meter.
Here is my build thread http://www.fiero.nl/forum/Forum2/HTML/122548.html
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Purple86GT
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FEB 07, 07:52 AM
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If doing a 3800SC swap, I recommend installing the buffer on the PCM VSS OUTPUT to the Fiero speedometer. This will allow you to tweak your speedometer to match different wheels etc.. by flashing your PCM. If you go from the trans direct to the Fiero gauges, you have to redo your buffer to make adjustments.
I love the idea of making the buffer into a relay case! Awesome idea! Man Fiero owners are creative! 
I have 2 concerns...
#1: I never heaard of anyone grinding the input shaft to mate a F23 to a 3800SC.. This is a first.. Anyone else have to do this???
#2: I'm still not sure about HTOB spacer on the 3800SC with .840 flywheel... and if a spacer is used, do you still need a clutch pedal stopper??
Cheers!
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Jncomutt
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FEB 07, 08:41 AM
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| quote | Originally posted by Purple86GT:
#1: I never heaard of anyone grinding the input shaft to mate a F23 to a 3800SC.. This is a first.. Anyone else have to do this???
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Justin used the ecotec FY1 input shaft, which was slightly longer than the typical 60ยบ bellhousing input shaft.
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BlownFiero86
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FEB 07, 09:16 AM
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I grinded the splines off the end of the input shaft of the f23 so it looked just like the 282 input shaft. I used a cordless drill with an allen socket and had my dad run the drill on the intermediate shaft while I took a grinder and ground down the splines to a wrap of masking tape I put on the input shaft as a stopping point. Because it was spinning the whole time when I stopped it was perfectly round. Also, if you use the spacer on the htob (which I recommend) you do not need to have a pedal stop.
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Will
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FEB 07, 11:27 AM
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| quote | Originally posted by Purple86GT:
I love the idea of making the buffer into a relay case! Awesome idea! Man Fiero owners are creative!
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Jncomutt
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FEB 26, 10:11 AM
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| quote | Originally posted by Purple86GT:
#1: I never heaard of anyone grinding the input shaft to mate a F23 to a 3800SC.. This is a first.. Anyone else have to do this???
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I did some measuring yesterday. The FY1 input shaft is approximately .40" longer.
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K-Z
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MAR 31, 11:04 PM
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Ok I've read this entire thread and have come up confused. Which f23 has the 3.84 fd with the 60 degree bellhousing? Or is the only ratio with the 60 degree 3.94? Ithought I read earlier that the 60 degree had 3.84 but then someone posted it had 3.94. Any clarification would be great. I need to replace my getrag so I'm just going to do this swap but have no idea what I'm getting myself into. Are the only extra componants needed the modified cable and brackets (If I'm mounting it to a 3.4)? What happens with the slave cylinder? ------------------
Grace and Peace
-Kaleb
Romans 1:16 " For I am not ashamed of the gospel, for it is the power of God for salvation to everyone who believes, to the Jew first and also to the Greek."
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mattwa
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MAR 31, 11:31 PM
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| quote | Originally posted by K-Z:
Ok I've read this entire thread and have come up confused. Which f23 has the 3.84 fd with the 60 degree bellhousing? Or is the only ratio with the 60 degree 3.94? Ithought I read earlier that the 60 degree had 3.84 but then someone posted it had 3.94. Any clarification would be great. I need to replace my getrag so I'm just going to do this swap but have no idea what I'm getting myself into. Are the only extra componants needed the modified cable and brackets (If I'm mounting it to a 3.4)? What happens with the slave cylinder?
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The 60 degree has 3.94, I think the 3.84 is a newer model year F23 that has the Ecotech bellhousing. Clutch line goes into the HTOB with Thein's adapter as shown on the first page.
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Jncomutt
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APR 01, 06:17 PM
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He's right, 60 degree is only in 3.94 but you can swap a 3.63 diff from the Ecotec trans into the 60 degree case, or swap the bellhousing on the Ecotec trans. [This message has been edited by Jncomutt (edited 04-01-2013).]
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