PR Coil leads

martymil

Major General
Sep 6, 2017
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I've tested three sets now and they all are around .7 the only thing we have in common is we all got it at the time of original release.
 

Vdkk

Private
Sep 3, 2018
34
24
0
Ride
335 e92
If I need a PR coil pack in a pinch can I find one at a local parts store? I know they are GM coils, I'd assume I could run a substitute for a couple miles to make it home?
 

martymil

Major General
Sep 6, 2017
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I brought 2 spares and keep one in the trunk or keep a couple of stock ones and baby it home

Wont hurt anything
 
Last edited:

Twinz

Lurker
Apr 19, 2017
23
25
0
Cape Town, South Africa
Ride
335i RWD
I just tested mine and they read 0.7
Purchased June 2017. I think those were the first released PR coils/wires. I have also been battling timing corrections/flatlining.

So what now. Buy the latest wires?? This sucks.
 

Jeffman

Major
Jan 7, 2017
1,620
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629
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.7/.028 = 25. That’s quite a difference is resistance between the old coils and the new ones. Did PR chime in yet? Is it the case that the PR “replacement wire” set will be 0.028 ohms resistance? Do we know what’s the difference between the two, such as metal composition, etc.?
 
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BOosted 335i

Sergeant
Jun 1, 2017
315
104
0
New Jersey
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E90 BMW 335i
what i dont like about the newer set boots is the thicker top part where you push down on,now my coil packs sit closer to my top mount single turbo.I am not liking that.
 

martymil

Major General
Sep 6, 2017
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Do what we done and make your own or get someone to make them for you

Resistance is only 0.019

20181227_163745.jpg
 

martymil

Major General
Sep 6, 2017
3,331
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We use the vtt rocker cover as it allows airflow around the leads

We also use hose pliers to take them on and off to make it easier.

20181227_170623.jpg
20181227_170501.jpg
20181227_170432.jpg
 
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BOosted 335i

Sergeant
Jun 1, 2017
315
104
0
New Jersey
Ride
E90 BMW 335i

BOosted 335i

Sergeant
Jun 1, 2017
315
104
0
New Jersey
Ride
E90 BMW 335i
Actually that pictures is the 1st gen boot from PR which i had no issue.i bought the 2nd Gen PR boot coils which are thicker at the top which cause the whole Kit to sit angled closer to my top mount turbo
 
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V8bait

Lieutenant
Nov 2, 2016
500
773
0
Texas
Old old version the manufacturer didn't come through to spec on wires, so they got revised internally. Wasn't an issue they were still good wires just not where they should have been, they were similar to MSD wires when superior to Accel and MSD was the target. New-old version fixed that (second batch of wires onwards). Going too low in resistance isn't a huge benefit since the plugs have resistors but go too low and you can get RF interference, things like jb4 BT connect kits freak out for no discernible performance advantage as these coils are already powerful. If you want to bottom out resistance you should check into solid copper core plugs too.

Biggest issue with the old style boot was that some people had virtually no issues and appreciated the low profile, others would destroy them repeatedly, so the design was revised to improve fit, installation, and removal.

If the coils are too close to the turbo, you can pick up the N55 brackets and wires pretty cheap from PR, just message him about your fitment concern with the new wires and maybe he can help you out, he's pretty good about that kind of thing if you're honest with him.

Found an image comparing the cores of first (bottom), revised, and accel which is superior to msd-
 

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martymil

Major General
Sep 6, 2017
3,331
1,906
0
Down Under
Ride
S65 1m
if your not getting major timing corrections or drops don't bother, if you are measure the resistance on the lead with a cheap multimeter and your spark plug gap and resistance.

Everytime you change spark plugs you should check the resistance of wires and gap your spark plug to suit your boost and power level.
 
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sch4400

Lurker
Mar 20, 2018
18
0
0
Ride
535
Old old version the manufacturer didn't come through to spec on wires, so they got revised internally. Wasn't an issue they were still good wires just not where they should have been, they were similar to MSD wires when superior to Accel and MSD was the target. New-old version fixed that (second batch of wires onwards). Going too low in resistance isn't a huge benefit since the plugs have resistors but go too low and you can get RF interference, things like jb4 BT connect kits freak out for no discernible performance advantage as these coils are already powerful. If you want to bottom out resistance you should check into solid copper core plugs too.

Biggest issue with the old style boot was that some people had virtually no issues and appreciated the low profile, others would destroy them repeatedly, so the design was revised to improve fit, installation, and removal.

If the coils are too close to the turbo, you can pick up the N55 brackets and wires pretty cheap from PR, just message him about your fitment concern with the new wires and maybe he can help you out, he's pretty good about that kind of thing if you're honest with him.

Found an image comparing the cores of first (bottom), revised, and accel which is superior to msd-
so last batch... newest version is everything is fine ? no concern about that?