'Vivian' 1979 242GT

Paul_Roodenrys · 2018-11-15T11:07:33+00:00

Good luck with the build. I'm glad that you are going to use a Volvo motor in Vivian. While I can marvel at the abilities of people to put all sorts of m...

Paul_Roodenrys

I have fitted an LH2.2 hall effect distributor to the B230ft motor from the donor car with an auxiliary shaft from another motor I had. It would help to know the pattern the crank signal in the distributor has. reading the information I can find on this site ad others I get the numbers 60-2. Thank you in advance for any information.

carnut222

Paul_Roodenrys
I have fitted an LH2.2 hall effect distributor to the B230ft motor from the donor car with an auxiliary shaft from another motor I had. It would help to know the pattern the crank signal in the distributor has. reading the information I can find on this site ad others I get the numbers 60-2. Thank you in advance for any information.

The flywheel for LH2.4 has the 60-2 pattern. I don't think the distributor has that - I think if you look at it there's only 4 "pulses" per revolution of the distributor...I'm sure somebody else will pipe up with more info though!

Paul_Roodenrys

Hello Greg, thank you for getting back to me so quickly. That makes sense as the Yoshifab CAS adapter mentions replacing the 4 pulses set up with 60-2 set up.

I really appreciate your help!

Paul

Major Ledfoot

That donor engine was LH 2.2. Did you convert it to LH2.4 or are you still using 2.2?

LH2.2 doesn't have a crank position sensor or RPM sensor. The dizzy, and the Hall sensor and its associated electronics, do the work. There is no real adaptive timing with 2.2 like there is with 2.4.

LH2.4 has an RPM sensor, that requires the 60-2 trigger wheel on the flywheel or flexplate (or aftermarket trigger wheel). The dizzy in 2.4 is just a big dumb high voltage switch; the EZ-116K and the ECU do all the smart work in setting the timing according to load, knock, etc. Hence why the timing on 2.4 isn't (easily) adjustable - chips are needed.

More and better explanation? Dave Barton to the rescue.

https://www.prancingmoose.com/harnessconversions.html#lh2.2-2.4difference

Paul_Roodenrys

Hello Ledfoot, I hope life in Tassie is going well for you. It is still LH2.2, so the original set up for the motor. Thanks for your reply. Does the 4 pulses per revolution that Greg mentioned still sound right? The tech at Haltech who has written a base map has set it up for that for precisely the reasons you mentioned.

Major Ledfoot

** flashback of realisation ** Ohhh, now I remember! - you're using a Haltech on it.

IIRC, what Greg said sounds perfectly correct - i.e. 4 Hall Effect pulses per RPM. Also IIRC, there is an interrupter of some sort inside the LH2.4 distributor.

Paul_Roodenrys

Truth be told Ledfoot it is so long between posts you would need a flashback to remember what I've done. If I didn't keep a log I wouldn't remember either. I am getting thee though, ever so slowly. I'm aiming for the 2023 Nationals now.

jamesinc

The distributor hall effect in LH-2.2 has four pulses 90 camshaft degrees apart

Paul_Roodenrys

Thanks James, I've almost convinced my self to buy one of Yoshib's DSM CAS adapter with disc, at a shade over $400 US it isn't cheap but has the advantage of replacing the old distributor with a new set up. Along with the adapter I'd go coil on plug. I'm not sure where the best place to place the coils would be. Or the best type of bracket to get. Any thoughts?

GingerNinja

Paul_Roodenrys
Thanks James, I've almost convinced my self to buy one of Yoshib's DSM CAS adapter with disc, at a shade over $400 US it isn't cheap but has the advantage of replacing the old distributor with a new set up. Along with the adapter I'd go coil on plug. I'm not sure where the best place to place the coils would be. Or the best type of bracket to get. Any thoughts?

Josh sells the LS coils and valve cover brackets too. Plus a TPS adapter.

https://yoshifab.com/store/b230.html

nugget_940

Paul_Roodenrys
Thanks James, I've almost convinced my self to buy one of Yoshib's DSM CAS adapter with disc, at a shade over $400 US it isn't cheap but has the advantage of replacing the old distributor with a new set up. Along with the adapter I'd go coil on plug. I'm not sure where the best place to place the coils would be. Or the best type of bracket to get. Any thoughts?

I ordered mine in January and still don't have it.

Ended up using stock lh2.4 crank trigger + lh2.2 dizzy for the hall sensor to run sequential ignition

jared244

Paul_Roodenrys
Thanks James, I've almost convinced my self to buy one of Yoshib's DSM CAS adapter with disc, at a shade over $400 US it isn't cheap but has the advantage of replacing the old distributor with a new set up. Along with the adapter I'd go coil on plug. I'm not sure where the best place to place the coils would be. Or the best type of bracket to get. Any thoughts?

Paul here’s the link for the deeworks LS2 coil bracket on Yoshifab’s site. Josh at Yoshifab retails the bracket on behalf of Deeworks.

https://yoshifab.com/store/8v-gm-ls-coil-mount-bracket.html?

It’s worth getting the heat proof coil leads. You can get coils via him or I can get them for you via my Brother who owns Autopro Enfield SA

Paul_Roodenrys

G'Day Ninja, I've already got one LS Coil with built in igniter from Haltech and they have been so helpful I'll uyt local and and get the other three from them as well. The TPS is sorted. My TPS came from EFI hardware so I'm covered there. I have seen a picture of the Yoshifab coil bracket but it is no longer on their website. They have another type of bracket which bolts onto the fuel pump block of plate under the inlet manifold. No picture though and Yoshifab haven't replied to my email yet enquiring about it. There are plenty of brackets available on line, just not sure which is the best one to get or the best place to locate them.

Paul_Roodenrys

nugget_940
https://ozvolvo.org/discussion/comment/202847#Comment_202847
I ordered mine in January and still don't have it.
Ended up using stock lh2.4 crank trigger + lh2.2 dizzy for the hall sensor to run sequential ignition

You should get yours soon Nugget, I waited almost as long. I was starting to worry. I've bought from Yoshifab before and delivery was prompt. Supply issues I suppose.

Paul_Roodenrys

My CAS Adapter arrived from Yoshifab this week which was a big relief. The adapter, sensor and disc weren't cheap, especially after converting to US dollars and adding freight but it does look like a well made, quality product. I also bought a coil bracket from Muscle Garage in SA. I could only find them in pairs for a V8 so I emailed them and yep, no problem they'd sell me just one. $66 plus postage and it was here in two days. Next purchase is three more LS1 coils and I've got pretty much everything I need. I almost daring to feel hopeful she'll run again soon. ?

Paul_Roodenrys

Thanks for the link to the brackets Jared, seeing as I already bought a new LS1 coil I thought I would stay with them. I looked at the bracket for the LS2 and would have liked to be able to use it. heat shielded wires seem like a very good idea.

Paul_Roodenrys

Now I have my Yoshifab CAS adapter I need to learn how to install it. I'm guessing that unlike a distributor it can just get plonked in and it will read the crank position, or do I need to have the motor at top dead centre on cylinder one? Any tips would be greatly appreciated.

jared244

Paul_Roodenrys
Now I have my Yoshifab CAS adapter I need to learn how to install it. I'm guessing that unlike a distributor it can just get plonked in and it will read the crank position, or do I need to have the motor at top dead centre on cylinder one? Any tips would be greatly appreciated.

good to hear your CAS Paul. Out of interest, When did you order it? I’ve had one on order since January!

Paul_Roodenrys

G'day Jared, I ordered mine on March 6. I've pestered him with some emails in the meantime. He did tell me that he had a large backlog of orders to fill. I hope you get yours soon. I was relieved to get mine as its not an insignificant amount of money.

Paul_Roodenrys

robv
I have a Haltech 550 in my 242 turbo, I used the yoshi fab crank/cam sensor, Vw coil with wasted spark and sequential injection. For what it’s worth my tuner encourages wasted spark as he believes it gives more mid range torque.
i put in an sr20 tune and it fired 1st go

Hello Rob, I'm hoping you can give me some information regarding installing the Yoshifab adapter and CAS sensor. Does it just slip in in place of the distributor, wire it up and the sensor does the rest or is there more to it?

I'm hoping to push the car back into the shed for the last time and then be able to drive it out. Any tips would be very much appreciated.

jared244

Paul_Roodenrys
https://ozvolvo.org/discussion/comment/185765#Comment_185765
Hello Rob, I'm hoping you can give me some information regarding installing the Yoshifab adapter and CAS sensor. Does it just slip in in place of the distributor, wire it up and the sensor does the rest or is there more to it?
I'm hoping to push the car back into the shed for the last time and then be able to drive it out. Any tips would be very much appreciated.

Paul the CAS adapter just drops in and bolts where the distributor was. and yes the CAS itself needs to be wired into your engine management system.

what happens next depends on what EMS you have. A simpler system might require you to lock the timing at idle and turn the distributor, or even lift the CAS adapter out and reengage the teeth in a different position to achieve timing of 10BTDC.

A more advanced EMS can do this in the software. Using a timing gun you can roughly see where it fires and enter degree offsets in the software to achieve 10BTDC.

once the static base timing timing is set, your off to the dyno for a tune. (Assuming the rest of your hardware is set up).

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