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Old 08-14-2014, 06:31 PM   #1
83' Turbo
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Default Returning Old Member... '83 242t content

Some of you all may remember my 'Future "R" Killa' project back in 2006 but if not my name is Chase. Anyways I am super excited to say I recently purchased another 242 turbo this week! Figured I would go ahead and post some pictures of her up even though she is still making the trip across country.

For a little background info on the car...

It has been owned by the same family for over 25 years! Thankfully the previous owner was super cool and agreed to sell me the car even though it wasn't the easiest process. Its always nice to know a classic like this has been taken care of and will continue to be.

The reason for the purchase was to find a nice clean DD for a couple years. My S60R has become a little more aggressive than I first thought it would be so now she can become a lazy garage queen and I can once again drive around without dodging pot holes and large inclines/speed bumps!















The R





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Old 08-14-2014, 07:25 PM   #2
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You have had and still have some of my favourite Volvos. Excited to see what you do to this one.
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Old 08-15-2014, 11:11 AM   #3
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Nice cars. Where in Raleigh are you?
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Old 08-16-2014, 11:03 AM   #4
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Nice cars. Where in Raleigh are you?
I am a few miles from RDU
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Old 08-17-2014, 12:14 PM   #5
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Welcome back! Check out the NC thread for meets
http://forums.turbobricks.com/showthread.php?t=202337
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Old 08-17-2014, 12:23 PM   #6
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Super clean 242, and even more impressive S60R.

I too recently picked up a 242T...but it's um...not as clean as yours is
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Old 08-17-2014, 12:56 PM   #7
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Shame all the 242 deals are on the wrong side of the country.....but a sweet find nonetheless
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Old 08-17-2014, 12:59 PM   #8
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I always like your future R killer project. Looks like you're starting with a nice base
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Old 08-17-2014, 02:48 PM   #9
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Such sweet cars. Nice finding a minty 242 like that.
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Old 08-18-2014, 10:55 AM   #10
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All the win
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Old 08-18-2014, 11:00 AM   #11
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Welcome back. Sorry to say, but in your absence, we all sold our Volvo's and bought Priuses. We're all bout dat MPG now.
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Old 09-09-2015, 06:48 PM   #12
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So with H2Oi coming up I have decided to leave the R home and bring the 242. Plan WAS to install the ebay turbo while keeping Kjet... Well lets just say when test fitting that plan went out the window. NOW the plan is to get LH2.2 installed and buttoned up before October... hopefully all goes well.

Also planning on fitting the 242 with some HRE 540r's, just need to get the spacers knocked out when I can find some time.

As the project sits today...















And the next nightmare...


Last edited by 83' Turbo; 09-09-2015 at 09:09 PM..
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Old 09-09-2015, 07:03 PM   #13
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2.2 and EZK are pretty easy. I'd keep the breakerless ignition though.

PS: keep the turbo and put a T04E cold side on it eventually. It's more betterer than the ebay thing.
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Old 09-09-2015, 07:22 PM   #14
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^ what he said.

just rip out the k-jet fuel stuff, be sure to keep the return line - you will need the fitting that attaches to the hard line in front of where the fuel filter is.

than just install a rail/manifold/240 lh 2.2 NA harness/740t ecus.

Easily done in an afternoon.
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Old 09-14-2015, 08:33 PM   #15
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I'll have to check that out.

Progress.
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Old 09-14-2015, 09:21 PM   #16
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An Evo 9 intercooler would work nicely there.
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Old 09-15-2015, 08:05 AM   #17
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Yea, an intercooler is much needed. Hopefully starting it up tomorrow then off to the exhaust shop!
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Old 09-15-2015, 09:21 AM   #18
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I have a technical question that maybe one of you guys can answer for me... To my understanding this is how EFI injectors fire: All of them have a constant power source with key on and the computer individually grounds each injector depending on the cylinder firing.

Well, the diagrams I have been looking at all show one common power and one common ground for all 4 injectors.. this doesnt make sense.. So after a little research I found another diagram that seems to show a resistor pack of sorts that we seemed to be missing. (Pulling one tomorrow from JY).

Can anyone explain to me how this resistor pack works and will make the correct injector spray at the correct time?? Common powers and common grounds made me picture all 4 spraying at the same time... haha thanks guys!
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Old 09-15-2015, 06:33 PM   #19
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Quote:
Originally Posted by 83' Turbo View Post
I have a technical question that maybe one of you guys can answer for me... To my understanding this is how EFI injectors fire: All of them have a constant power source with key on and the computer individually grounds each injector depending on the cylinder firing.

Well, the diagrams I have been looking at all show one common power and one common ground for all 4 injectors.. this doesnt make sense.. So after a little research I found another diagram that seems to show a resistor pack of sorts that we seemed to be missing. (Pulling one tomorrow from JY).

Can anyone explain to me how this resistor pack works and will make the correct injector spray at the correct time?? Common powers and common grounds made me picture all 4 spraying at the same time... haha thanks guys!
Correct, all of your injectors have a common power and common ground.

The ECU pulls the injector to ground to trigger the injector.

LH 2.2 and LH 2.4 use batch-fire fuel injection. Sequential injection (one squirt per injector, per 4-stroke cycle) didn't come around til much later.

The resistor pack ADDS resistance to the fuel injector circuit. The majority of fuel injectors are high-z (high-resistance). That's what the ECU expects to see. For whatever reason (someone else chime in here), Volvo decided to use a low-z injector for the stock RWD turbo cars and add the needed resistance using the resistor pack. The resistor pack doesn't have anything to do with the injector spray time/cycle, but everything to do with not burning up your ECU.

If you want to avoid adding the resistor pack, just grab some high-z, commonly available better flowing fuel injectors, like those from an 850 Turbo.
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Old 09-15-2015, 06:41 PM   #20
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Welcome Back Chase!
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Old 09-15-2015, 06:47 PM   #21
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Welcome Back Chase!
HI BRETT! caps
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Old 09-15-2015, 07:02 PM   #22
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Hey Jared!

Caps were not allowed for me.
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Old 09-15-2015, 10:13 PM   #23
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Originally Posted by propav8r View Post
Correct, all of your injectors have a common power and common ground.

The ECU pulls the injector to ground to trigger the injector.

LH 2.2 and LH 2.4 use batch-fire fuel injection. Sequential injection (one squirt per injector, per 4-stroke cycle) didn't come around til much later.

The resistor pack ADDS resistance to the fuel injector circuit. The majority of fuel injectors are high-z (high-resistance). That's what the ECU expects to see. For whatever reason (someone else chime in here), Volvo decided to use a low-z injector for the stock RWD turbo cars and add the needed resistance using the resistor pack. The resistor pack doesn't have anything to do with the injector spray time/cycle, but everything to do with not burning up your ECU.

If you want to avoid adding the resistor pack, just grab some high-z, commonly available better flowing fuel injectors, like those from an 850 Turbo.
Just the info i was looking for! Very informative thank you! So if i switch to 850T injectors I wont have to use the resistor pack for the LH 2.2 ECU?
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Old 09-15-2015, 11:35 PM   #24
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Originally Posted by 83' Turbo View Post
Just the info i was looking for! Very informative thank you! So if i switch to 850T injectors I wont have to use the resistor pack for the LH 2.2 ECU?
You got it.
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Old 09-20-2015, 02:14 PM   #25
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Well went to crank it and I cannot get spark. There are two problems I have not been able to figure out yet.

1) for some reason now the fuel relay will not click, which I am guessing is because of a bad ground yet I cannot find it anywhere
2) also there is no power going to the new LH ecu. There is 12v going to the new fuel relay connector on the LH harness but not to the main ecu connector.

I am sure its something simple I missed but as of now I think I just need to take a break and look at it again with a clear head. Anyone have any ideas on what I may have missed?
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