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Old 10-10-2014, 03:33 PM   #51
Stiggy Pop
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Originally Posted by harribert View Post
Better to just pull a 240 harness. Soo much easier.
Not when we're talking about 7/9's!

I've got an LH2.4 940t harness in a tub... not a chance in hell I'll ever love a 940 enough to swap that sumbitch
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Old 10-10-2014, 04:32 PM   #52
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Originally Posted by boosted12a View Post
hell, come pull the 2.4 harness out of the 740 im gonna scrap. ill donate it to a worth cause but i aint pullin it
I just might have to do that.... When are you scrapping it?
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Old 10-14-2014, 06:30 PM   #53
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after this weekend. i still have a few parts i need to pull. this sunday would probbaly be best
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Old 10-15-2014, 10:07 AM   #54
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Damn I gotta work. Thanks for the offer. I'll wait for one to show up in the yard.
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Old 10-15-2014, 06:14 PM   #55
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ok. well if i dont get it scrapped next week ill let you know.
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Old 11-11-2015, 02:06 AM   #56
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Year old bump! anyone ever complete the swap?
Got a complete car 940t ready to swap into a 740 na
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Old 11-14-2015, 03:20 PM   #57
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Year old bump! anyone ever complete the swap?
Got a complete car 940t ready to swap into a 740 na
bump
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Old 09-22-2016, 10:05 PM   #58
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What wires did you re pin
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Old 06-05-2017, 10:04 PM   #59
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Going to start this nightmare myself in a few months, surprised to not find any good info on it. Have a complete running 92 turbo 740 that's in rough shape, just picked up a clean 93 940 that's regina. I plan on just swapping harnesses personally but we'll see what happens.
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Old 06-07-2017, 10:06 AM   #60
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I'm VERY new to tuning, and not young but I've got the bug bad.

I've had 15 redblocks, mostly 945s, a 960, 240s and an '01XC, and all were just cars I fit in really well during a LONG 17 years of medical hell/spinal rare disease at 6'5" with the legs of a 5'8" man, and the spine of 7'10" my love of Bricks came from how well they treated my spine. My knowledge base has strictly been on keeping them running in stock configuration, but after a divorce, and not dying, I'm sort of a kid again, and my Son is bonkers for hot rodding, and fast cars...at 5&1/2 yrs old too.

Now my mid life crisis is making some bricks fly.
Presently I have 2 940s, both N/A one is a Regina, that I honestly hate as someone in the previous thread mentioned, the NorthEast, the difference in parts, vacuum lines, different relays, one fuel pump, I don't notice ANY fuel econ but the motor could use a rebuild, etc. and the exhaust is on there just as a mild engine noise dampener and to appear as if I've really got one. It's got Bar's stop leak in it, running fine, and needs a lot of work on the peripherals.

My '01XC is the only other car and it's got a blown trans. But I've thought about taking the regina and dropping the 2.4 LPT in there... what's the learning curve? I can do just about anything I set my mind to, and do it well, with some help here and there.

I'm rebuilding the head on my Bosch 940, lowered, N/A IPD VX cam... but when that's done, and the goop from the head gasket patch in the system is cleaned out that worked o.k. for a year, I should be o.k. on that in 2 weeks or so.

I was toying with rehabbing the Regina and selling it, I can clean it up WELL. But I think a 2.4L LPT would be awesome.

Why is the Regina the "choice" for this one, or is it just what's on hand for the O.P.?
I'd need the schematics and steps for this one, but I have Volvo Mech friends, and you guys as well...
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Old 06-12-2017, 01:47 PM   #61
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Easier to swap cars than to swap Regina to LH. The roadblock I ran into was that some of the wires LH/EZK uses to the power stage are shielded... whereas they are not in Rex/Regina. It gets to be a headache fast, as the 7/9's use a single harness for pretty much everything. Soo.... I just put the Regina flex plate between the B234 and AW72 and called it a day back in 2012. Works fine.

I suspect Regina is good for 150-170HP out of the box. There's a write up on how to +T Regina. If you want to LH, just use a 240 harness.

Regina is nice for N/A. Parts are dirt cheap. Much rather spend $30 for a new MAP sensor every quarter million miles than deal with -016 AMM's.

LH is much more flexible.

-Ryan
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Old 07-03-2017, 06:56 PM   #62
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Has anyone made any progress on this? or still have their ecu pin out ideas? I'm really tempted to purchase a 91 940t parts car.
And I currently have a 90 740 na 5 speed. that would love a turbo 2.4lh.
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Old 07-04-2017, 08:24 AM   #63
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Originally Posted by Deathbye30 View Post
Has anyone made any progress on this? or still have their ecu pin out ideas? I'm really tempted to purchase a 91 940t parts car.
And I currently have a 90 740 na 5 speed. that would love a turbo 2.4lh.
There's an article on turbo-ing Regina here on TB. You should be able to add enough boost to break the 5-spd M47.

To me, the brickwall in the Regina-LH swap is that EZK wants some shielded wires where there are none in the Regina harness. You'll also need to swap the Regina flywheel for an LH. There was a time that a Regina flywheel could be sold for big bucks.

Easiest way to LH a Regina car is probably still to use a 240 harness, or one of the conversion harnesses used in the EU to ditch Motronic.

Another option is to go MegaSquirt. IIRC, Jeep Rennix(sp?) uses the same flywheel pattern as Rex-Regina.

-Ryan
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Old 07-04-2017, 12:25 PM   #64
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If shielded cables are the only problem, you can find short lengths of one or two conductor cables at: https://www.diyautotune.com/product/...2-gauge-10-39/

For EZK116, the crank position sensor wires are shielded, and maybe the knock sensor. For these, you could add shielded cables and splice them in next to the EZK connector.
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Old 07-04-2017, 12:27 PM   #65
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Here's the pin matrix I did a few years ago then never did anything with

https://docs.google.com/file/d/0B_LB...letype=msexcel
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Old 07-04-2017, 01:01 PM   #66
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Regina uses same knock and crank sensors, so no worries there. The wiring to the power stage is where the shielding is needed.

To be fair, if one is really going to do this, you're hacking out and swapping in big chunks of underhood harness anyway. The donor harness is probably adequately shielded where needed.

-Ryan
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