So about a year ago my friend and I did this conversion on my vr. It runs great so far. Recently I've tried playing around with the spark plug gaps... It already had NGKR5s gapped at .35, then when I did my tune up I put on NGKR7IX plugs which give me a higher range since apparently the ford coilpack gives a much hotter spark. They come out of the box gapped at .35 but I regapped at .40 after reading up on other threads about coilpack conversions. It didnt make much difference than before except it driving a bit more responsive from the tune up. A couple of days after I regapped them at .50 and let me tell you, I can feel the difference. My MPGs went up from averaging 25-29 to 28-35 on the freeway. If you have a few hours to kill, I highly recomend doing this.
The coilpack was about $40 at the junkyard. DONT FORGET TO TAKE THE HARNESS PLUG WITH IT AND CUT ITS WIRES AT ABOUT 7'-8" just so you have anout to work with later. If you read though the previous posts it'll tell you which cars to look for the part in. I was lucky to find on with the long posts so I didn't have to modify my plug wires. Here are some pics I took while doing the whole project.
This is the coilpack itself.
Top view with the firing order.
Here's the harness from the ford coilpack attached to the original vw base with ICM. Notice how the wires from the harness are to be attached in order to the ICM.
Some people were complaining about clearance with the wire guides also I found out heat isn' the ICM's best friend. So I made a supporting plate that would give the coilpack and wires a better position in the engine bay. After I mocked it and knew everything would be ok in place I painted the plate black with some heat resistant enamel.
Here's how everything sat when installed. Make sure to run a ground wire from somwhere on the coilpack to the block.
Better view of the whole setup.
I know this "DIY" wasn't the most thorough one. But this is a very simple project. If you inform yourself enough, I don't think there will be a problem getting this right.
Did the swap with a DUI coilpack and a harness off a Taurus, very straight forward, car idles much better now.
Got some dual electrode Bosch silvers by mistake, can't change the gap with my DUI coilpack
I'll be buying some single electrode el-cheapo copper plugs and gapping them to 0.060 as soon as I get my chains done.
QUOTE=monoaural;77829796]It may seem kinda no brainer, but it is important that you dont allow the plug from the coilpack sit on the coolant hose. Mine wore through, and ran dry.[/QUOTE]
This winter going to build the 9mm Ford race wires for my conversion. I know there was some question about resitance with the stock coils and wires. Hope this was taken out of the mix when the stock crap was tossed out.
I just finished this up on my car, works well. I have a new set of BKR5EKU plugs, but it seems like It seems like most of you are using other plugs. Is this just because you've had better luck with the other types or because they are cheaper?
Here are the options I know of:
- NGK BKR5EKU (stock)
- NGK BKR5E
- Autolite 3924 (stock)
What's my best bet on a NA car?
Last edited by kelchm; 06-22-2012 at 03:20 AM.
amazing thread. gonna pick up a DUI coil online and plug from a junkie in the next month or so. My coil is currently working alright but its #3 in the car and want to get a more solid coil in before this one goes and takes the ICM with it. Thanks to all who helped make this thread great with pictures and experimentation.
I did the DUI coilpack conversion last month and it ran great for about 2 weeks, now my engine is flooding out and it won't stay running. I'm getting some spark because the car will run for a bit, than it dies out because of either too much fuel or not enough spark. I have a couple questions,
1) Will running too small of a gap on the plugs cause problems?
2) I saw someone says to ground the coilpack to the block, is this imperitive?
3) How can you tell if the ICM has gone bad?
Any gelp you guys can give is greatly appreciated!
i've had great success with it, i believe they come gapped at like .35 and thats what i leave them at. they are single prong.
i too would like to know if there is a better plug i should be using. should i be using a 2 prong plug as i've seen other people use?
i'm basically asking if there is a more efficient plug out there or the one i'm using is ideal.
LEASE THIS SPACE
^ That 12v Mk3 vs Mk4 has been covered in here several times. For the purpose of installation of the Ford coil there is absolutely no difference. Your only difference is at the connector of the ICM which you are retaining anyway so is a non-issue.
"OP sounds like a MKIV guy"
You guys seem to be mistaken, i know which connector i should get, i need to know which ford coilpack will work with the stock AFP wires, i don't want to crimp new connectors on it, some people have said that the posts are too long and cause issues with being able to use the factory wires.
2000 VW Golf GTI GLX VR6 - Satin Silver
VRSociety Member #8
Does anyone have pics on the Screamin Demon in their car? And any input on it? I've back tracked and see regular ford coils but no ford aftermarket input...
Haven't tried finding the max spark gap yet, as I got stock dual-electrode Bosch Silvers by accident. 0.040 is stock on these plugs, 0.045 has been done, what I really want to try is the advertised 0.060 (max gap as per manual) as soon as I find single-electrode copper plugs. If anybody has recommendations please be shooting them my way, the cheaper the better.
EDIT: Considering BKR5E's but still looking for other options.
Last edited by max302; 08-09-2012 at 11:48 PM.
Bro, go back to page 11 and my post has a few pics of the installation. At that point in time I was using the stock Ford coil, however dimensionally the Screamin Demon is identical so I never updated the images. You literally can tell no difference physically other than the decal. The form and fit is no different in terms of wire fitment and mounting arrangement of the actual coil.
"OP sounds like a MKIV guy"
Just installed a DUI coilpack on a friends and my car. He hasnt gotten new plugs yet but will widen the gap ASAP. My VRt with a Precison 6262 is luving 22psi with a .030gap
2004 R32 The new daily
1997 sequoia GTI VR6 turbo. 12.1@124, (best mph)12.2@126mph. I need some slicks
1992 GTI VR6T. Still not done
1993 corrado VR6.
1994 caged Golf VR6. Daily driver. 14.7@95mph(sold)
Big papa gap status achieved. Running 0.060 on BKR5E's with the DUI coilpack and the old girl seems to be loving it. I'm hoping this will net me a couple more MPGs, my best with old plugs was 28 mpg on all-highway with a clogged cat, ****ed up exhaust and a slight leak at the TB gasket.
I'm up to over 50k miles on a stock early style Ford Coilpack that was on a 175000 mile car from the yard.
No issues at all.
19x8.5 5x112 BBS LM's for sale. http://forums.vwvortex.com/showthrea...&highlight=bbs