How many of you have swapped in a C4 auto?

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FordManMT
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How many of you have swapped in a C4 auto?

Post by FordManMT » Mon Mar 14, 2016 12:56 am

As much as I would like to keep a manual in my car it may not be financially feasible. After looking into the cost of building a T5 to handle the range of power I'm shooting for.

A C4 out of a 2wd ranger shouldn't be to hard to find.

Looking at the C3 and C4 they are about the same size.

Manual valve body's run from $200-$400.

Just putting a feel out for anyone who has done this.

I'm sure many of you see my posts and say "well that won't happen" I'm basically getting everything together before I start this endeavor

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Re: How many of you have swapped in a C4 auto?

Post by merkurdriver » Mon Mar 14, 2016 10:38 am

I have a C4 in one of the XRs here. Its easy enough to do, but finding the correct 2.3 / C4 bellhousing can be tricky. You'll need to add the "green stripe" vacuum modulator if you put it behind a turbocharged engine.

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Re: How many of you have swapped in a C4 auto?

Post by merk23literturbo » Mon Mar 14, 2016 5:42 pm

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Re: How many of you have swapped in a C4 auto?

Post by FordManMT » Mon Mar 14, 2016 11:36 pm

merkurdriver wrote:I have a C4 in one of the XRs here. Its easy enough to do, but finding the correct 2.3 / C4 bellhousing can be tricky. You'll need to add the "green stripe" vacuum modulator if you put it behind a turbocharged engine.

I wouldn't think I would need the modulator running a full manual valve body would I?

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Re: How many of you have swapped in a C4 auto?

Post by merkurdriver » Tue Mar 15, 2016 2:02 pm

FordManMT wrote:
merkurdriver wrote:I have a C4 in one of the XRs here. Its easy enough to do, but finding the correct 2.3 / C4 bellhousing can be tricky. You'll need to add the "green stripe" vacuum modulator if you put it behind a turbocharged engine.

I wouldn't think I would need the modulator running a full manual valve body would I?
probably not if you plan on doing all the shifting by hand

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Re: How many of you have swapped in a C4 auto?

Post by popimpracer » Fri Aug 03, 2018 5:59 pm

WHY DID IT DIE?

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Re: How many of you have swapped in a C4 auto?

Post by DAReese » Mon Aug 06, 2018 2:42 pm

popimpracer wrote:
Fri Aug 03, 2018 5:59 pm
WHY DID IT DIE?
C3s don't handle the output from the stock 5-spd ECU well with no engine mods. Start bumping up the output and the C-3 really doesn't like that. You CAN upgrade the C-3, but you're still left with a C-3. There are some fans of the 18,000 RPMs to get to 70MPH, but most think the engine has to rev far too high to even just keep up with traffic.
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used to own 86 dark blue traded in on a min van, what was I thinking?

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Re: How many of you have swapped in a C4 auto?

Post by Ed Lijewski » Mon Aug 06, 2018 8:41 pm

I think he was asking why this thread died (re anyone who swapped in a C4?).

BTW, one guy who posted here or maybe on MerkurSport some years ago ran his high mileage C3 XR using power break starts repeatedly at the drag strip and it didn't break (eventually his posts ended but for unknown reasons). He had pics of it smoking the tires.

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Re: How many of you have swapped in a C4 auto?

Post by Rocky's Wrench » Tue Aug 07, 2018 1:24 am

Ed Lijewski wrote:
Mon Aug 06, 2018 8:41 pm
I think he was asking why this thread died (re anyone who swapped in a C4?).

BTW, one guy who posted here or maybe on MerkurSport some years ago ran his high mileage C3 XR using power break starts repeatedly at the drag strip and it didn't break (eventually his posts ended but for unknown reasons). He had pics of it smoking the tires.

YMMV
So there was one good C3 out there, it probably blew up...
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Re: How many of you have swapped in a C4 auto?

Post by popimpracer » Tue Aug 07, 2018 9:23 am

Yes I meant the thread and mine was fine till I ran it through a Houston flood

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Re: How many of you have swapped in a C4 auto?

Post by Ed Lijewski » Tue Aug 07, 2018 10:34 am

Your C3? They're (comparatively) easily rebuildable.

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Re: How many of you have swapped in a C4 auto?

Post by popimpracer » Tue Aug 07, 2018 11:41 am

Yes my c3, i was wanting to upgrade for power if possible.

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Re: How many of you have swapped in a C4 auto?

Post by DAReese » Tue Aug 07, 2018 12:55 pm

Ed Lijewski wrote:
Mon Aug 06, 2018 8:41 pm
I think he was asking why this thread died (re anyone who swapped in a C4?).

BTW, one guy who posted here or maybe on MerkurSport some years ago ran his high mileage C3 XR using power break starts repeatedly at the drag strip and it didn't break (eventually his posts ended but for unknown reasons). He had pics of it smoking the tires.

YMMV
I know you can upgrade the C3, but you're still left with a too-high revving car for my taste. I think the C-3 was a bad choice for the XR, but I don't know what alternatives there were in the early 80s when the US conversion was being developed. Even the Scorpio was getting a new tranny for 1990 when it was killed, and it had a four-speed already, but those are different markets.
David Reese

88 XR4Ti - mono white T5, someday to be bi wing
89 Scorpio - waiting on some parts before it hits the road again
88 XR4Ti - mono red C3, parts car
used to own 86 dark blue traded in on a min van, what was I thinking?

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Re: How many of you have swapped in a C4 auto?

Post by John Brennan » Tue Aug 07, 2018 1:16 pm

DAReese wrote:
Tue Aug 07, 2018 12:55 pm
I know you can upgrade the C3, but you're still left with a too-high revving car for my taste. I think the C-3 was a bad choice for the XR, but I don't know what alternatives there were in the early 80s when the US conversion was being developed. Even the Scorpio was getting a new tranny for 1990 when it was killed, and it had a four-speed already, but those are different markets.
Indeed, pity the four-speed automatic transmission hadn't been invented yet...
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Re: How many of you have swapped in a C4 auto?

Post by popimpracer » Tue Aug 07, 2018 2:39 pm

I read a tread some where that the c4 was possible but labor intensive.

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