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Cheaper Alternative To Splitfire Coilpacks - Externally Mounted

Rolls

By Rolls,
in Engines & Forced Induction

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Rolls Grand Master

Rolls

Posted
Posted

http://gdz1la.kol.co.nz/prod01.htm

Found this guys website when reading this thread on r31skyline club

http://forum.r31skylineclub.com/index.php?topic=36055.0

Basically it replaces them with a system that runs wasted spark, you can then mount it on the firewall and run external leads. Even if you get him to do all the rewiring and soldering yourself it only costs you ~$230 for a set with new leads. Another option would be to use an AU falcon coilpack and get someone to rewire it.

The specs look good, was wondering if anyone has done this with success? Im looking at doing it as I have a redtop rb20det which if I go splitfires I will need an adaptor loom as well which will cost at least $700 for the lot.

Rolls Grand Master

Rolls

Posted
  • Author
Posted
old news but it does indeed work.

i know of a few ppl that have done this conversion due to their stock coils farking out.

Cure all misfiring problems, no longetivity issues with the wasted spark issue?

FATGTS-R Experienced

FATGTS-R

Posted
Posted

I have a remote mounted AU coil pack on a redtop RB20, although with an aftermarket ecu and have had no dramas with it.

I did however have VN items before the AU and they failed miserably, all 9 times.

MBS206 Grand Master

MBS206

Posted
Posted
I have a remote mounted AU coil pack on a redtop RB20, although with an aftermarket ecu and have had no dramas with it.

I did however have VN items before the AU and they failed miserably, all 9 times.

VN Items are KNOWN to fail. Even the VN boys upgrade them, even on a stock engine. They're a poorly designed coil pack. If you had researched them a bit, you could have found this out. The VP S2 onwards packs are a MUCH better design.

Lazy-Bastard Grand Master

Lazy-Bastard

Posted
Posted

I wasted ~$400 doing a bosch coil pack conversion and STILL had a miss at anything over 1 bar, even with a .6 plug gap. Eventually I sold the setup to recoup some of the outlay and got a set of splitfires.......haven't had a problem since.

Splitfires can be had for <$550 delivered these days, so I don't see the point stuffing around with something that MIGHT work. Plus the external coils are a pain to mount in the engine bay and look messy.

Sydneykid Grand Master

Sydneykid

Posted
Posted
Plus the external coils are a pain to mount in the engine bay and look messy.

I would add that using coil leads from the coil packs to the spark plugs simply adds another 6 electrical joints likely to cause problems. Coil on plug design was done for a reason, RELIABILITY.

:ermm: cheers :O

Justice Apprentice

Justice

Posted
Posted

I emailed this guy and didnt get a response.

I ended up doing some hunting around and found that the coil packs he use are from a Buick Grand National V6 Turbo.

I got them on ebay brand new from the states for less than $AUD50

Got an ignitor from an r32 as I have a series 2 rb25 and the ignitors are in the coils.

Wired it up and away I went. No more idle problems.

GTR-Ben Proficient

GTR-Ben

Posted
Posted

I know him and where he works.. have to tell him people want his coil setup.

No idea why he wouldn't respond.

I personally find stock coils very cheap to replace and have always been fine for me. Maybe one will break down from time to time.. i would just get another one.

Rolls Grand Master

Rolls

Posted
  • Author
Posted
I would add that using coil leads from the coil packs to the spark plugs simply adds another 6 electrical joints likely to cause problems. Coil on plug design was done for a reason, RELIABILITY.

:O cheers :)

True but wouldnt relocating to somewhere aside from the furnace between the head be a bonus? I mean plenty of cars run leads without issues.

I found out I can get a AU coil pack brand new for $70, leads will set me back ~$60 and what $70-100 to get an auto electrician wire it up properly for me. This vs $585 it seems like a much cheaper option and leads are cheap if for some reason they did break.

Do you think that the splitfires + adaptor are honestly worth getting at more then double this price?

Sydneykid Grand Master

Sydneykid

Posted
Posted
True but wouldnt relocating to somewhere aside from the furnace between the head be a bonus? I mean plenty of cars run leads without issues.

I found out I can get a AU coil pack brand new for $70, leads will set me back ~$60 and what $70-100 to get an auto electrician wire it up properly for me. This vs $585 it seems like a much cheaper option and leads are cheap if for some reason they did break.

Do you think that the splitfires + adaptor are honestly worth getting at more then double this price?

Some things to think about;

1. The standard coil packs are designed by Nissan to live in their environment ie; Nissan knows the temperatures between the cam covers.

2. Nissan (and all the other car manufacturers) went away from remote mounting coils for reliability issues.

3. If you mount coils designed for chassis mounting on a vibrating engine, they will fail.

4. If you mount the coils on the chassis, then the leads will flex as the engine twists and they will fail.

5. If you use coils designed for vibration mounting and mount them on the engine, they will be subject to the same (if not higher) temperature variations than the standard oils.

6. The temperature between the cams (where the standard coils are) is controlled by the water flowing though the water jackets of the surrounding cylinder head. This means an even temperature once the engine is warmed up.

7. Remote mounted coils on say the firewall at the rear of the engine, are subject to far greater temperature variations. This is not good for the life of a coil.

8. Using a coil pack designed for an engine that revs to 5,000 rpm on an engine that revs to 7,500 rpm is asking for high rpm misfire.

9. Do you really think a Ford designed coil is going to work better on an RB than a Nissan designed coil? Why is a Ford coil set $70 and a Nissan coil set $490? Is it possible that the Nisan coil packs might just happen to be 7 times better?

People blame coil packs for all sorts of misfire problems, when the truth is the standard coil pack is a very reliable and efficient device.

:O cheers :)

DJRIFT Veteran

DJRIFT

Posted
Posted

i agree with SK and as an auto elec i replace heaps of failed AU coil packs. everything he has said is right. if you look ate everything on a nissan it has been designed very well. take an R32 GTS-t the brakes on these things are grate for there age but every one wants to upgrade them. like everything people decide to upgrade. they upgrade it because it is worn out and they say they were no good anyway but if they restored them to like new they would find they are actualy good.

plus leads every where looks shite

Rolls Grand Master

Rolls

Posted
  • Author
Posted

Yeah cheers for the info guys, Ive gone ahead and ordered some splitfires as I want to do it right the first time, and its less hassle.

The adapter replaces the entire cabling loom as well so all new cables and wires which is good as the old ones are all hagged and brittle now.

Cubes Grand Master

Cubes

Posted
Posted
take an R32 GTS-t the brakes on these things are grate for there age but every one wants to upgrade them. like everything people decide to upgrade. they upgrade it because it is worn out and they say they were no good anyway but if they restored them to like new they would find they are actualy good.

Its amazing what a set of good pads will do to the r32's brakes. Mine have a better feel than any other car I've driven. Extremely predictable and easy to control if they lock.

The Dan Grand Master

The Dan

Posted
Posted
Some things to think about;

1. The standard coil packs are designed by Nissan to live in their environment ie; Nissan knows the temperatures between the cam covers.

2. Nissan (and all the other car manufacturers) went away from remote mounting coils for reliability issues.

3. If you mount coils designed for chassis mounting on a vibrating engine, they will fail.

4. If you mount the coils on the chassis, then the leads will flex as the engine twists and they will fail.

5. If you use coils designed for vibration mounting and mount them on the engine, they will be subject to the same (if not higher) temperature variations than the standard oils.

6. The temperature between the cams (where the standard coils are) is controlled by the water flowing though the water jackets of the surrounding cylinder head. This means an even temperature once the engine is warmed up.

7. Remote mounted coils on say the firewall at the rear of the engine, are subject to far greater temperature variations. This is not good for the life of a coil.

8. Using a coil pack designed for an engine that revs to 5,000 rpm on an engine that revs to 7,500 rpm is asking for high rpm misfire.

9. Do you really think a Ford designed coil is going to work better on an RB than a Nissan designed coil? Why is a Ford coil set $70 and a Nissan coil set $490? Is it possible that the Nisan coil packs might just happen to be 7 times better?

People blame coil packs for all sorts of misfire problems, when the truth is the standard coil pack is a very reliable and efficient device.

:) cheers :)

Don't forget about the added resistance throughout the system due to the 3/4 of a meter long ignition lead.

lol.

SKiTLz Contributor

SKiTLz

Posted
Posted
Yeah cheers for the info guys, Ive gone ahead and ordered some splitfires as I want to do it right the first time, and its less hassle.

The adapter replaces the entire cabling loom as well so all new cables and wires which is good as the old ones are all hagged and brittle now.

What adapter are you talking about exaclty? The splitfires only come with coil packs. No ignitor or loom.

Bl4cK32 Grand Master

Bl4cK32

Posted
Posted
I personally find stock coils very cheap to replace and have always been fine for me. Maybe one will break down from time to time.. i would just get another one.

How much are we talking, and are they new from Nissan? :)

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