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Old 03-14-2021, 08:28 PM   #1
Dvroofer
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Default Resistor Pack Installation Help Please

I am currently in the process of prepping my 1991 volvo 240 wagon B230f for a +T. I have pulled a turbo and mainfold, intercooler, air box and piping off a 1989 740, bought a sandwich block off plate from earls, Hoses, fittings, oil relocation mount and a oil cooler. I am prepping the pan for the oil drainage feed. I have a set of green injectors but need to wire in the resistor pack that I also pulled. Any help would be appreciated I have searched the forum and been unsuccessful. another question is do I require any additional electronics for the turbo set up beyond a turbo ecu?
[IMG]525-BE0-D4-72-AC-42-F4-B72-B-3-ACFA2-D5262-E[/IMG] [IMG]FA965-FCA-79-AF-4545-9903-32-E9-AAFFD1-C9[/IMG]
[IMG]subsource-done-button-uid-2-DD2-AEE5-B69-B-4262-BABA-DDBB5-CE86-DE6-1603064428636-source-other-origi[/IMG]
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Old 03-14-2021, 09:09 PM   #2
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Default reisitor pack install .. help

I am currently in the process of prepping my 1991 volvo 240 wagon B230f for a +T. I have pulled a turbo and mainfold, intercooler, air box and piping off a 1989 740, bought a sandwich block off plate from earls, Hoses, fittings, oil relocation mount and a oil cooler. I am prepping the pan for the oil drainage feed. I have a set of green injectors but need to wire in the resistor pack that I also pulled. Any help would be appreciated I have searched the forum and been unsuccessful. another question is do I require any additional electronics for the turbo set up beyond a turbo ecu?
[IMG]525-BE0-D4-72-AC-42-F4-B72-B-3-ACFA2-D5262-E[/IMG] [IMG]FA965-FCA-79-AF-4545-9903-32-E9-AAFFD1-C9[/IMG]
[IMG]subsource-done-button-uid-2-DD2-AEE5-B69-B-4262-BABA-DDBB5-CE86-DE6-1603064428636-source-other-origi[/IMG]
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Old 03-15-2021, 02:14 AM   #3
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Wrong section, mods will surely move it for you.
But it's about 50x easier to use 850 turbo injectors (reddish color) without a resistor pack, you'll also need the turbo EZK.

If you can find a 940t grab the ECU, EZK, FPR, MAF wiring and manifold, then the turbo (15g) and injectors off an 850t.
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Old 03-15-2021, 10:40 AM   #4
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This image will explain the difference in the two circuit types for 740 NA versus turbo.

If needed, the rest of this pin function set is in my harness page at https://www.prancingmoose.com/volvoh...l#pinfunctions

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File Type: jpg Harness_LH-2.4_EZKFunctmed.jpg (172.9 KB, 104 views)
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Old 03-15-2021, 11:19 AM   #5
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Quote:
Originally Posted by dbarton View Post
This image will explain the difference in the two circuit types for 740 NA versus turbo.

If needed, the rest of this pin function set is in my harness page at https://www.prancingmoose.com/volvoh...l#pinfunctions

Dave B
Thank you. And thanks for the adjustable voltage regulator to fix my amperage issues. Received it about a week or2 ago and am impressed with its functionality

Last edited by Dvroofer; 03-15-2021 at 09:51 PM..
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Old 03-15-2021, 11:43 AM   #6
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Originally Posted by James M View Post
Wrong section, mods will surely move it for you.
But it's about 50x easier to use 850 turbo injectors (reddish color) without a resistor pack, you'll also need the turbo EZK.

If you can find a 940t grab the ECU, EZK, FPR, MAF wiring and manifold, then the turbo (15g) and injectors off an 850t.
Thanks. I have a turbo ezk I pulled from the yard this weekend.I was looking at some 30lb injectors from fiveo that I believe are the same as red tops or the Red Devils. Direct fit says fiveo. You think Id be better off going on that direction? They have larger ones that fit as well but Im not to knowledgeable on injectors so Im hesitant. What lb high impendence injectors do you think might work the best?
https://www.fiveo-racing.com/collect...nt=36732716227
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Old 03-15-2021, 12:46 PM   #7
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Moving here since it's the right section

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Originally Posted by Dvroofer View Post
Thanks. I have a turbo ezk I pulled from the yard this weekend.I was looking at some 30lb injectors from fiveo that I believe are the same as red tops or the Red Devils. Direct fit says fiveo. You think I’d be better off going on that direction? They have larger ones that fit as well but I’m not to knowledgeable on injectors so I’m hesitant. What lb high impendence injectors do you think might work the best?
https://www.fiveo-racing.com/collect...nt=36732716227
30lb is in line with 850t red injectors, but pay attention to at what pressure the ratings are based on (your example is at the same 3bar as 940t/850t). $60 each is more then a whole set of junkyard red ones. You could visit a PnP or check the for sale section, $9 each over there.
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Old 03-15-2021, 02:02 PM   #8
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I thought if you were going with high ohm injectors you'd not use the resistor pack.
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Old 03-15-2021, 03:12 PM   #9
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Originally Posted by Ursan View Post
I thought if you were going with high ohm injectors you'd not use the resistor pack.
Affirmative.
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Old 03-15-2021, 03:33 PM   #10
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There's also the easy button...
http://forums.turbobricks.com/showthread.php?t=247971

#33 and hi-z. I can ship them out tomorrow.

Also, no need to change out the FPR, same between NA and turbo on LH2.4.

I did notice as well, you got the early manifold. See if you can find a 90+, they do flow a bit better, also easier to work with.
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Old 03-15-2021, 04:07 PM   #11
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Originally Posted by gsellstr View Post
There's also the easy button...
http://forums.turbobricks.com/showthread.php?t=247971

#33 and hi-z. I can ship them out tomorrow.

Also, no need to change out the FPR, same between NA and turbo on LH2.4.

I did notice as well, you got the early manifold. See if you can find a 90+, they do flow a bit better, also easier to work with.
I was under the impression LH2.4 240s had 2.5bar FPRs while 940t had 3bar?

Those whites would be better if your looking to increase boost down the line, and at a good price
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Old 03-15-2021, 06:36 PM   #12
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Nope, 2.4 runs 3b, turbo or NA. Only certain 2.2 cars had the 2.5b reg.

The whites seem to run better than the normal 804 or 357 greens as well. 4-hole instead of pintle's.
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Old 03-15-2021, 09:49 PM   #13
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Originally Posted by gsellstr View Post
Nope, 2.4 runs 3b, turbo or NA. Only certain 2.2 cars had the 2.5b reg.

The whites seem to run better than the normal 804 or 357 greens as well. 4-hole instead of pintle's.
Thank you let me pm you and Ill try out a set. I was under the impression I had the wrong 3 bar on my n/a and needed to go to a 2.5. Thanks for the clarification. The 2.5 I found did come off a 2.2. Will not be putting it on. Will these be ok to put in before I add my turbo set up?
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Old 03-15-2021, 09:56 PM   #14
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Nope, 2.4 runs 3b, turbo or NA. Only certain 2.2 cars had the 2.5b reg.
Haha checked the part numbers, correct indeed. Looks like I've pocketed a few FPRs for no reason.
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Old 03-16-2021, 01:12 AM   #15
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Yeah, you should be fine to install these now, LH should be able to adapt around them.
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Old 03-18-2021, 02:00 AM   #16
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Yeah, you should be fine to install these now, LH should be able to adapt around them.
Yep, my FPR was stuck and I had about 5 bar fuel pressure. Black smoke when at cold start, sometimes small hesitation, but lambda correction handeled almost 90% of all driving conditions.

Of course, everything was better with new FPR.
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