240 mass airflow sensor upgrade?

Old Jul 15, 2010 | 04:13 PM
  #21  
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Stock boost is ~8psi.

Don't forget to drill the block for the oil return line.
 
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Old Jul 16, 2010 | 07:51 AM
  #22  
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http://forums.turbobricks.com/showpo...48&postcount=1

That might help with the wiring. I had done something very similar about 6 months ago, its running good but i have other problems right now.
 
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Old Jul 17, 2010 | 12:00 AM
  #23  
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Originally Posted by adub96
Swift justice is the voice of reason here. With the LH 2.0 came a vacuum advance distributor, you can use that without swapping over and EZK, LH2.2 doesn't require a signal from the EZK. You can boost an NA motor its done with the volvo motors all the time. NO need for a larger main fuel pump.

What you will need to do it is, exhaust manifold, turbo, downpipe, piping, preferably an intercooler setup. New injectors. To avoid all the extra drama you can use the ones from a turbo 850. Wiring harness, ecu, 3 wire o2 sensor, maf, water sensor, boost guage will become helpful. I'll think about the rest. Its very easily doable for under 500 bucks and they make good power.

Piston slap what?
Yes PISTON SLAP..Do you not know what piston slap is? Almost EVERY B230FT motor I have worked on over 150K has piston slap...some greater than others but none the less...they have it..Also the older 240's had a smaller main fuel pump...would be nice to UPGRADE to the larger one that is used in later years.
 
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Old Jul 17, 2010 | 08:11 PM
  #24  
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That's right. Piston slap become more prevalent with the low friction design brought out w/ the B230F. Unlike it's predecessors, the B230F has piston steered rods as opposed to crank steered rods. Eventually, piston slap can occur. I've seen 'em with as little as 120k have it. The issue was reduced somewhat with the reintroduction of the heavier 13mm rods. Piston squirters introduced w/ the L block helped reduce the problem even further. I've seen redblocks run 60-75k miles after developing slap.
So, VG2323...just what do you mean when you say "older" Volvos? Since the "newest" 240's are now 17 years old...the expression is a little vague. Are you saying K Jet 240's have a lower volume main fuel pump than later LH Jetronic cars?
 
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Old Jul 18, 2010 | 03:29 AM
  #25  
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so if you slap on a 92 940 turbo cyl heads with camshaft and all to an 86 240 wagon, what can you expect? My original head was shot and pick ur part had a 50% off deal and took the heads off of the wrecked 940. Got a new gasket and so far runs nice and smooth. when I did the smog check it came out way low on the emissions(400 ppm too much for Cal smog regs but way under most cars I have owned in CA.

1991 Mazda MX6 came to 3200 ppm
1986 Volvo 240 wagon came to 1444 ppm. go figure
 
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Old Jul 18, 2010 | 09:49 AM
  #26  
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I'm curious about this as well. We've got a jy with such a deal. And ive heard the Turbo can will help me a bit. Also. Can I swap brackets and switch my alternator Ans ps pump? My research finds that 760 had those accessories opposite of my setup. And my ic to intake pipe does not fit.
 
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Old Jul 18, 2010 | 01:04 PM
  #27  
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Originally Posted by swiftjustice44
That's right. Piston slap become more prevalent with the low friction design brought out w/ the B230F. Unlike it's predecessors, the B230F has piston steered rods as opposed to crank steered rods. Eventually, piston slap can occur. I've seen 'em with as little as 120k have it. The issue was reduced somewhat with the reintroduction of the heavier 13mm rods. Piston squirters introduced w/ the L block helped reduce the problem even further. I've seen redblocks run 60-75k miles after developing slap.
So, VG2323...just what do you mean when you say "older" Volvos? Since the "newest" 240's are now 17 years old...the expression is a little vague. Are you saying K Jet 240's have a lower volume main fuel pump than later LH Jetronic cars?
most 84 240's B23's have a smaller main fuel pump(if it's the original pump) than then say an 85/86...B230F not talking about CIS cars...totally different system. Volvo upgraded the main fuel pump in 85/86...to a more powerful robust pump. Yes the motors can run with piston slap but why invest a bunch of time and money to have a motor with piston slap...that's nothing to be proud of. I guess if it's just for fun...do it.
 
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Old Jul 18, 2010 | 04:08 PM
  #28  
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Originally Posted by redbottle
so if you slap on a 92 940 turbo cyl heads with camshaft and all to an 86 240 wagon, what can you expect? My original head was shot and pick ur part had a 50% off deal and took the heads off of the wrecked 940. Got a new gasket and so far runs nice and smooth. when I did the smog check it came out way low on the emissions(400 ppm too much for Cal smog regs but way under most cars I have owned in CA.
The only difference between a turbo head and an n/a head is he exhaust valves. The turbo setup has sodium infused, Stellite coated exhaust valves to dissipate heat a little better. There are plenty of people on turbobricks.com running n/a heads on turbo's n/a motors. Turbo heads are better...but I wouldn't pull the n/a one off the running motor unless it had to come off for other reasons like a bad HG or was warped.

And yes, you can swap the accessory brackets around...
 
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Old Jul 18, 2010 | 08:22 PM
  #29  
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Will I need brackets from Turbo engine or will reconfiguring my existing brackets do it? And how will the belts have to be long enough to reach around the alternator water pump and crank pulley? Or do I run only one on my alternator?

I have another dilemma, I need to run water lines through my Turbo. Where do these come from on the Turbo models? I'd like to think iys off the hard heater hose that runs to rear of the block from water pump. Sorry about 500 Q's at a time.
 
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Old Jul 19, 2010 | 11:42 AM
  #30  
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Yes i know what piston slap is but thanks for the science lesson.

As far as the brackets the only turbo specific bracket I can think of is the bracket that holds the turbo to the block on some models.

As far as the water cooling for the turbo it depends which one you have. I have an oil only Garrett turbo but the Mits ones do have water cooling. You can pull the necessary piping off a 740t. I honestly would just run a Garret if you shop smart you can find a decent one for 100.
 
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Old Jul 20, 2010 | 08:36 AM
  #31  
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Got the Turbo with the rest of the goodies. Pretty sure its thE factory Turbo. Its Garrett t3, .42 a/r. Has coolant lines as well as oil so ill run some. I printed some diagrams from alldata, not as informative as I'd hoped for but ill pick up a Haynes for better wiring diagram, as far as the accessories ill have to do some measuring, the Turbo 740 had an offset water pump and the belt ran ps pump and water pump. I will need similar .
 
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Old Jul 20, 2010 | 03:20 PM
  #32  
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One thing that often gets overlooked is fuel injectors. The n/a cars use high resistance injectors and the turbo cars use low resistance, higher volume injectors. You can either use the "green top" standard turbo injectors and wire in a resistor or go with similar volume high rez injectors. As long as they are the Bosch style and similar flow rate they'll be fine. I have diagrams showing how the resitor gets wired in. Most people use the o.e resistor pack, but actually, a Radio Shack resitor can work just as well.
 
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Old Jul 21, 2010 | 08:58 AM
  #33  
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I have the green tops, fuel rail, and fpr from the donor car. I think I have the resistance box but upon looking at the diagram I think its for ignition system or something else. Please pm me the diagram if you have it. I used alldata, it was less than amazing. So if I'm understanding this correctly I still need the resistance with the Turbo fcu? Believe its a 541. I'd have to look at it again don't remember off the top of my head
 
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Old Jul 21, 2010 | 08:30 PM
  #34  
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Yes, the 541 was the factory turbo ecu for LH2.2 When they failed, the dealership always replaced them with the 591, slightly more reliable and has a removable eprom so easier to be chipped.
Here's a pic of the resistor pack, they're located on the driver's side strut tower...
Name:  VolvoResistorPack2.jpg
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The ecu doesn't dictate high or low res injectors...all the ecu's require high resistance from the injectors. Volvo chose to use low rez injectors for the turbos, so you have to make up the extra resistance w/ a resistor inline.
 

Last edited by swiftjustice44; Jul 21, 2010 at 08:40 PM.
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Old Jul 22, 2010 | 03:46 PM
  #35  
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Originally Posted by swiftjustice44
One thing that often gets overlooked is fuel injectors. The n/a cars use high resistance injectors and the turbo cars use low resistance, higher volume injectors. You can either use the "green top" standard turbo injectors and wire in a resistor or go with similar volume high rez injectors. As long as they are the Bosch style and similar flow rate they'll be fine. I have diagrams showing how the resitor gets wired in. Most people use the o.e resistor pack, but actually, a Radio Shack resitor can work just as well.
Or skip the whole injector drama and run the injectors from a 850 turbo. You can get five for 35 bucks all day long.
 
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Old Jul 22, 2010 | 10:54 PM
  #36  
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Which is what I was alluding to when I mentioned high rez injectors. The T5 orange tops flow 30#, same as the turbo green tops and you won't need the resistor.
 
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Old Jul 23, 2010 | 07:44 AM
  #37  
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I may even have an extra set.
 
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Old Jul 24, 2010 | 09:08 AM
  #38  
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How much for them, and what they rated at? If I read correctly the green top are 32lb
?
 
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Old Jul 24, 2010 | 11:28 AM
  #39  
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Yeah. Green tops around ~33lbs
 
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