Jump to content
SAU Community

Recommended Posts

Hi all, so the time has come for me to get new coils for my 20 as i still have the original ones >_<.

Was browsing through the fab section and saw a post on ls1 coils on a rb20, nothing was really discussed in detail so did a search and found some scattered info of people doing this and saying nothing but good things about them.

My question is who on here has done this on there rb? Was it an easy install?

I would really appreciate any info on this as I'm considering going this route as a full set (8) ls1 coils is roughly half the price of splitfires.

One massive pro to this setup is you can can your standard ignitor as the coils have them inbuilt, which seems really good as i'm sure the standard 20 odd year old ignitor would be the weakest link after upgrading to say some new splitfires.

Also having them mounted of the engine has to be better for a coil, not having all the heat go straight into the coil.

But can a standard ecu run them? They apparently can but there is stuff all info out there.

Cheers.

Link to comment
https://www.sau.com.au/forums/topic/355885-ls1-coils-on-a-rb/
Share on other sites

The ignitor is just a high speed switch only in this case they are built into the coil assembly .

Some will say that returning to high tension leads is a backwards step in this day and age .

I reckon by the time you muck around with brackets leads wiring etc you may not have a lot to gain and it creates a bit of an eyesore .

Can you source good second hand std coils or explore ones off other RB twin cam engines ?

A .

I know OT but so much more to be gained from a 25 if you can manage it .

Why not go 26 ones as they are a bit newer? Or just get some yellow jackets or splitfires?

Avoid the red ones (won't put brand in for obvious reason) however they didn't last 24hrs

IMO yellow jackets are bang for buck and 200+ cheaper than splitfires and gave better results on my car

I use them along with 8/10 other rb fans I know.

They nurder the splitfire for reliability and throw a much fatter spark.

The better coil to use is the ls2 chevy truck coil. It will start bushfires in the next state. Can pick them up quite cheap off ebay too.

I read the diy but will the rb20 wiring be the same?

Basically I would go with the yellow jackets but how long have they been around for? No point buying a product that has a 2 year warranty when the company might not be around in a year or so. Not to mention theres stuff all info on where there made.

I'm going to see how much i can get ls2 coils for and go from there, no point if the setup is the same or more the splitfires. It looks promising though as the ls2 coils are meant to have a big spark.

Getting the car tuned and some other issues sorted and tuner told me that two of my coils are leaking to ground. Options:

1. repalce OEM ones with OEM ($$$)

2. aftermarket (not as much $$$ as above)

3. LS1 coils (that I ended up getting for free)

I think I will go with option 3... anyone got some decent photos of how they mounted them? Or what leads they used?

I use them along with 8/10 other rb fans I know.

They nurder the splitfire for reliability and throw a much fatter spark.

How did you find that out? Back to back, same tune, same plugs etc test on a dyno?

Bugger paying $200 each, the best of the 3 types (the LS2 Truck Coil-with the heat sink on the top) is only $24.75 each with $60 postage for all 6. So ~$209 all together. And these put out 120mA as opposed to 40mA for the base LS2 type. What do the factory coils put out?

http://cgi.ebay.com/ebaymotors/IGNITION-COIL-CADILLAC-GM-HUMMER-ISUZU-VEHICLES-UF262-_W0QQcmdZViewItemQQhashZitem5d2d7a3fedQQitemZ400194945005QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

Edited by D_Stirls

Well I know why Nissan went straight coil on plug, there is f**k all room to mount the LS1 coils especially trying to have them neat and with equal length leads. Having a mate come round tomorrow to give me a hand.

I read the diy but will the rb20 wiring be the same?

Basically I would go with the yellow jackets but how long have they been around for? No point buying a product that has a 2 year warranty when the company might not be around in a year or so. Not to mention theres stuff all info on where there made.

I'm going to see how much i can get ls2 coils for and go from there, no point if the setup is the same or more the splitfires. It looks promising though as the ls2 coils are meant to have a big spark.

I think I have had my RB20 yellow jackets for around 2 years now... They are still holding more power/boost without any issues than I would imagine you will ever need with a RB20

Well I got a dummy bracket made up which should do the trick; now I need to sort out the wiring. Will get a photo up of them mounted this weekend, if it looks as neat as I hope I might even do a kit.

By the way does anyone know if you still use the OEM "noise suppressor condensor" on the power feed to the LS1 coils?

Edited by bigmikespec

So the ones listed on ebay in the us there not a genuine gm coil are they? Just figured if your gonna get them might as well get the real deal instead of a cheaper knockoff.

If they are genuine then f**k me there cheap, so much cheaper then any decent replacement coils, well worth the hassles of mounting and wiring.

Still cant decide on whether to run these of just get yellow jackets, kinda running out of time before my tune, so kinda need to make a decision asap >_<

One issus i have noticed is the dwell time on the coils, i'm guessing you'll need to adjust it via the ecu as it has to be set to around 5ms, not to sure what a standard rb coil's dwell time is?

Edited by eightsixboy

This is what I use when I want a good cheap COP coil

http://cgi.ebay.com.au/FORD-FALCON-BA-BF-NEW-COIL-ORIGINAL-XR6-TURBO-4-0L-/190507883608?pt=AU_Car_Parts_Accessories&hash=item2c5b279c58

They are just as strong as LS1 coils. Had no problems on a 2jz @30psi of boost with a 0.9mm gap.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • $53.35 and a double din Pioneer head unit that I have...
    • Put a camera facing your dashboard so you can film the gauges. Head out to a straight but of road, and filming it as you go from a stand still at wide open throttle to as fast as you can/feel comfortable doing. Then film the dash board as you for example accelerate like normal onto a freeway. This will give us an indicator from Speedo of your expectation of slow, and will give us the rpm reading too to see if it's shifting. (Auto still has tacho from memory)
    • Buy yourself the cooling system pressure tester. Being able to pump it up, and have a gauge on it, AND have a cold engine makes it much easier / practical to diagnose. Additionally as the engine isn't running, you can listen for pin hole leaks as well as watching if pressure drops away. In addition, you can pressurise and while doing so, watch all the little rubber hoses. Some fail very brittle, and will just leak, while others can end up very soft and bulge. While a bulging hose isn't necessarily leaking, one of those small ones starting to stretch / expand in a bad way is an indicator that you'll be looking to replace that one soon   Depending on if this is a project car, or you'll be dailying it in the summer months would alter how I'd be most comfortable with driving the car and how I'd replace. If you're planning to use it as a daily, with no backup, I'd pull the engine, and replace all the external oil/water lines in one big swoop. At the same time do the timing belt, water pump, tensioners etc. Do not open the engine at all. We just want to replace all the things that are inexpensive as a single item, but a PITA when they go. By doing the above, you've made the car from a bunch of age related issues more reliable. If it's a project, and you like swearing while trying to reach into dirty hard to reach places to replace a single hose that may or may not be the leaky one. Just replace the leaking/bad ones as they need it. If it's a project and you'd rather swear at the car once and enjoy it as much as possible, then refer to the process I mentioned in how I'd want to do it if it were a daily. However, the approaches above do come down to how much spare pocket change you have. Pulling the engine and dropping over a thousand dollars on parts, may not be practical for you. Oh, if engine outing, I'd replace as many silicon/rubber inlet joiners as possible too.
    • Yeah, they're pretty dumb though...ie; they'll throw a solenoid error if the solenoid is dead, shorted, wiring is open circuit, or even if the driver transistor has failed (they can't self-diagnose much, they can only test inputs/outputs)... but if you wanted to try, I believe it's this protocol....(uses a long pulse indicator with short pulse counter)...    
    • Yeah I'll do what I can without taking off any major parts for now. If it becomes clear I won't get far with the engine in the car I'll have to think about the next steps. I am not too stuck on keeping everything 100% OEM, if there is better solutions, like converting most lines to braided with AN adapters, I'd rather do that than buy overpriced new "shit" parts.
×
×
  • Create New...