The beast so far

[brad]

Any idea what makes the R8 coils better than stock?

[MountainBikeMike]

Any idea what makes the R8 coils better than stock?

Have a look for a group buy run by Tiger for them. Theres a whole lot of opinions but most reckon the red looks cool and thats about it!

[brad]

I had that feeling it might have been just looks

[dportaz]

Yeh ill give them a go and worst case will sell them to another forum member if they dont give me any improvement... Then if Bluefin cant fix the tune they will have to give my money back and then i'll look at possibly a viezu tune but just stage 1 as their stage 1 is close bluefins stage 2..

[tigger73]

This is info on R8 Coil Packs which is borrowed from the Mk6 Golf site - I take no responsibility for the accuracy or otherwise...

Here is what was found with bench ( oscilloscope ) testing:

1) These coils can be used on your FSI/TSI engine at ANY level of modification. They function just as well on a dead stock car as a highly modified one.

2) They are NOT the same coils with red housings. The secondary circuit on the R8 coils has a higher resistance (more windings) than the stock coils. In fact the secondary circuits were slightly closer to the Okadas we tested than the secondary of the stock coils.

3) We tested these between 12 and 16 volts (remember if your alternator is charging properly the input will be right around 14). We tested them between 200 and 16,000rpm. The stock coils started to misfire at a much lower rpm than the R8's with a stock spark plug gapped @ .032".

4) The spark was visibly brighter and more intense on the R8's when compared to the stock coils @ every rpm we compared in the stock rev range. We didn't compare anything under 1,000rpm.

5) We were able to open the gap on the plugs much further with the R8's than the stock plug with out misfiring at the same rpm/voltage.

6) Here is what we were finding as an AVERAGE on the secondary circuit for each of the coils.

Stock: 3.3 M ohms
5 cylinder coils: 4.75 M ohms
R8's: 5.31 M ohms
Okadas: 6.2 M ohms



So there definitely is a difference. There are quite a few people that have stock coil packs fail - particularly when you start having your engine tuned.

It is a real PITA to have a coil pack go and be left driving on 3 cylinders (from personal experience). You might get lucky and have no problems, though for the cost of the coil packs it's cheap insurance against getting stranded.

Yes and check over in the parts for sale, there's a Group Buy currently running: http://www.vwwatercooled.com/forums/...ecs-83808.html

Hope that answers your questions and let you get back on topic now

[MountainBikeMike]

This is info on R8 Coil Packs which is borrowed from the Mk6 Golf site - I take no responsibility for the accuracy or otherwise...

Here is what was found with bench ( oscilloscope ) testing:

1) These coils can be used on your FSI/TSI engine at ANY level of modification. They function just as well on a dead stock car as a highly modified one.

2) They are NOT the same coils with red housings. The secondary circuit on the R8 coils has a higher resistance (more windings) than the stock coils. In fact the secondary circuits were slightly closer to the Okadas we tested than the secondary of the stock coils.

3) We tested these between 12 and 16 volts (remember if your alternator is charging properly the input will be right around 14). We tested them between 200 and 16,000rpm. The stock coils started to misfire at a much lower rpm than the R8's with a stock spark plug gapped @ .032".

4) The spark was visibly brighter and more intense on the R8's when compared to the stock coils @ every rpm we compared in the stock rev range. We didn't compare anything under 1,000rpm.

5) We were able to open the gap on the plugs much further with the R8's than the stock plug with out misfiring at the same rpm/voltage.

6) Here is what we were finding as an AVERAGE on the secondary circuit for each of the coils.

Stock: 3.3 M ohms
5 cylinder coils: 4.75 M ohms
R8's: 5.31 M ohms
Okadas: 6.2 M ohms



So there definitely is a difference. There are quite a few people that have stock coil packs fail - particularly when you start having your engine tuned.

It is a real PITA to have a coil pack go and be left driving on 3 cylinders (from personal experience). You might get lucky and have no problems, though for the cost of the coil packs it's cheap insurance against getting stranded.

Yes and check over in the parts for sale, there's a Group Buy currently running: http://www.vwwatercooled.com/forums/...ecs-83808.html

Hope that answers your questions and let you get back on topic now

Thanks for this. I mustnt have read through the entire thread and missed this post, or maybe because I don't visit that golf forum. It seems worth it after reading that.

Sent from my HTC One X using Tapatalk

[dportaz]

This is info on R8 Coil Packs which is borrowed from the Mk6 Golf site - I take no responsibility for the accuracy or otherwise...

Here is what was found with bench ( oscilloscope ) testing:

1) These coils can be used on your FSI/TSI engine at ANY level of modification. They function just as well on a dead stock car as a highly modified one.

2) They are NOT the same coils with red housings. The secondary circuit on the R8 coils has a higher resistance (more windings) than the stock coils. In fact the secondary circuits were slightly closer to the Okadas we tested than the secondary of the stock coils.

3) We tested these between 12 and 16 volts (remember if your alternator is charging properly the input will be right around 14). We tested them between 200 and 16,000rpm. The stock coils started to misfire at a much lower rpm than the R8's with a stock spark plug gapped @ .032".

4) The spark was visibly brighter and more intense on the R8's when compared to the stock coils @ every rpm we compared in the stock rev range. We didn't compare anything under 1,000rpm.

5) We were able to open the gap on the plugs much further with the R8's than the stock plug with out misfiring at the same rpm/voltage.

6) Here is what we were finding as an AVERAGE on the secondary circuit for each of the coils.

Stock: 3.3 M ohms
5 cylinder coils: 4.75 M ohms
R8's: 5.31 M ohms
Okadas: 6.2 M ohms



So there definitely is a difference. There are quite a few people that have stock coil packs fail - particularly when you start having your engine tuned.

It is a real PITA to have a coil pack go and be left driving on 3 cylinders (from personal experience). You might get lucky and have no problems, though for the cost of the coil packs it's cheap insurance against getting stranded.

Yes and check over in the parts for sale, there's a Group Buy currently running: http://www.vwwatercooled.com/forums/...ecs-83808.html

Hope that answers your questions and let you get back on topic now

What he said...

[brad]

thanks. Always nice to see some substance

[Martin]

I'm happy to accept that the R8 coil packs are better than stock
I'm doubtful that the stage 2 misfires will be resolved by installing R8 coil packs
I've never had a single problem with my APR (stage 1 or 2) tune

[tigger73]

I'm happy to accept that the R8 coil packs are better than stock
I'm doubtful that the stage 2 misfires will be resolved by installing R8 coil packs
I've never had a single problem with my APR (stage 1 or 2) tune

It's not an issue with the tune - just the stock coils are not up to it when you start pushing it. Misfires at higher engine RPM's is commonly caused by coil packs failing. Worst case is that they will fail completely and you'll be left driving on 3 cylinders.

I'd suggest giving the higher spec coils a shot - many people are running the R8 coils with good success both locally and overseas.

If you're not convinced on the R8 coils then you can get a set of Okadas, but they are pricey - around $200 a coil. Hence why $140 for a set of 4 x R8 coils is popular choice

[Martin]

Hmm, I'm not convinced - why do the stock coils work fine for APR tunes?
I am aware of three people with Revo Stage I & II tunes that are misfiring

[tigger73]

The beast so far

Hmm, I'm not convinced - why do the stock coils work fine for APR tunes?
I am aware of three people with Revo Stage I & II tunes that are misfiring

You can get misfires with any tune (and also stock).

If you have VCDS or other diagnostic tool you can find out which cylinder is misfiring. Then swap coil packs on this cylinder and see if the fault moves. If it does move cylinders then you know you have a dodgy coil pack.

If not then you have to start digging a little deeper.

However it is not uncommon for coil packs to cause misfires and relatively quick and easy to diagnose/fix.


Sent from my iPhone using Tapatalk

[brad]

Hmm, I'm not convinced - why do the stock coils work fine for APR tunes?
I am aware of three people with Revo Stage I & II tunes that are misfiring

Differences in boost / mixture / timing at a given RPM due to different philosophies of how to "tune" an engine?

[dportaz]

So got the new coil packs installed yesterday and also removed the torque arm insert/dog bone.... Definitely smoother coz of no T.A.I... will monitor over the next week to see if the coil packs have helped also...

Over xmas I think im going to try and dynamat the boot and under the rear seat... few noises and rattles that i want to get rid of..... Is it hard to remove all the fixtures and rear seat...??

[zei20t]

Differences in boost / mixture / timing at a given RPM due to different philosophies of how to "tune" an engine?

you're not wrong there. plenty of ways to skin a cat. but yes there is a right way!