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Coil on plug conversion for distributor cars?

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

twinvolvos
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Coil on plug conversion for distributor cars?

Post by twinvolvos » Mon Dec 18, 2017 7:54 am

I would like to get rid of the distributor on both my 1994 850 and 1998 V70. Can anyone advise me on the process and parts needed to make this kind of conversion? Will I need to change the head, ECU, ainstll a crank trigger wheel, or???

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Re: Coil on plug conversion for distributor cars?

Post by Klausc » Mon Dec 18, 2017 2:03 pm

Not worth the effort or cost. I guess you could buy a 1999 with a broken tranny and then swap the head, ECU, wiring harness, throttle cable replacement, etc. A single distributor costs less than a single coil over.
Klaus
If I had a larger garage, I could have more Volvos.

shaker_chi
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Re: Coil on plug conversion for distributor cars?

Post by shaker_chi » Mon Dec 18, 2017 3:19 pm

Any reason why you would want to convert?

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erikv11
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Re: Coil on plug conversion for distributor cars?

Post by erikv11 » Mon Dec 18, 2017 4:36 pm

For turbo cars yes, you can swap just the ECU, drop in a harness and the coil packs, but the tuned ECU is not cheap: http://vasttuning.com/coil-on-plug/
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 285k
'06 S60 R, 165k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

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RickHaleParker
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Re: Coil on plug conversion for distributor cars?

Post by RickHaleParker » Mon Dec 18, 2017 6:00 pm

Vast has a $300 Plug and Play conversion kit for 850’s and C70/V70/S70’s, your still need to source your own coils.

http://vasttuning.com/coil-on-plug/
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0,
Plant Torslanda Sweden.
----------------------------------------------------------------
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

twinvolvos
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Re: Coil on plug conversion for distributor cars?

Post by twinvolvos » Mon Dec 18, 2017 8:35 pm

I am planing to swap the engine from the 850T into my 1973 Triumph TR6 making it longitudinal instead of transverse. The rest of the 850 is pretty trashed. I also have a Honda S2000 6 speed transmission to couple to the Volvo engine. The distributor will run into the firewall so going to C.O.P. seems to be the best solution. Also planning to get around 315 hp from the 5 cylinder which will be 3 times what the TR6 "tractor engine" currently has. Any performance mods to achieve that goal will be appreciated also. I will check on the Vast package, thanks.

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Re: Coil on plug conversion for distributor cars?

Post by tryingbe » Tue Dec 19, 2017 6:36 am

I'd go with megasquirt or microsquirt.
85 GLH, 367 whp
00 Insight, 72 mpg

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Re: Coil on plug conversion for distributor cars?

Post by Klausc » Tue Dec 19, 2017 9:12 am

twinvolvos wrote:
Mon Dec 18, 2017 8:35 pm
I am planing to swap the engine from the 850T into my 1973 Triumph TR6 making it longitudinal instead of transverse. The rest of the 850 is pretty trashed. I also have a Honda S2000 6 speed transmission to couple to the Volvo engine. The distributor will run into the firewall so going to C.O.P. seems to be the best solution. Also planning to get around 315 hp from the 5 cylinder which will be 3 times what the TR6 "tractor engine" currently has. Any performance mods to achieve that goal will be appreciated also. I will check on the Vast package, thanks.
Now that makes sense! I thought you were doing this just to complicate a simple engine. In a TR6? Wow, that should really move right along. Make sure you replace the RMS and find a good place to tighten down the coil overs.
Because you will no longer have a check engine light and finding a turbo ECU with manual tranny is hard to do, you will need an OBD port to check all of the codes that will come up.
Good luck! Let us know the outcome, this project sounds real interesting.
Klaus
If I had a larger garage, I could have more Volvos.

twinvolvos
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Re: Coil on plug conversion for distributor cars?

Post by twinvolvos » Wed Dec 20, 2017 9:39 am

Thank you all for the helpful advise. Klaus, I'm not sure what RMS stands for. I plan on transferring as much of the wiring harnesses as necessary to make everything work. There is some information on converting these engines to longitudinal orientation on the internet but not as detailed as I will probably need. I picked up a 1995 960 since it has the bell housing, oil pan, motor mounts and water line tubing that I was told would be necessary for the job. The 960 will eventually get a V6 and auto trans from a Newer Camaro. Any additional information will always be appreciated.

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Re: Coil on plug conversion for distributor cars?

Post by Klausc » Wed Dec 20, 2017 10:10 am

The engine Rear Main Seal, replace with OEM only.
Take your measurements again, the distributor only needs a few extra inches and you will have to make new engine mounts for the TR6. You won't have A/C, and you might want to consider a smaller inter-cooler that sits low in the air scoop to give you more room. BTW, rerouting the air flow from the turbo through the top of the I/C will reduce a lot of the Turbo plumbing and reduce lag time.
Klaus
If I had a larger garage, I could have more Volvos.

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