Jump to content
SAU Community

Rb26/30 Ignition Setup Help

grunter01

By grunter01,
in Engines & Forced Induction

 Share

Recommended Posts

grunter01 Enthusiast

grunter01

Posted
Posted

Hey guys,

I have a rb26/30 with all the goodies in it, I am wanting to run 35+psi on E85 and i have been told that the ignition has to be changed to do so. Can you big hp guys recommend a setup to run as i am chasing 750rwhp through my glide. cheers

Link to comment
https://www.sau.com.au/forums/topic/410235-rb2630-ignition-setup-help/
Share on other sites
rob82 Mentor

rob82

Posted
Posted

http://www.aemelectronics.com/high-output-igbt-inductive-smart-coil-1240

This is what I would use - best inductive ignition system I've seen.

I tend to prefer running inductive ignition system compared to cdi on almost all applications - especially on street cars.

kitto Mentor

kitto

Posted
Posted

http://www.aemelectronics.com/high-output-igbt-inductive-smart-coil-1240

This is what I would use - best inductive ignition system I've seen.

I tend to prefer running inductive ignition system compared to cdi on almost all applications - especially on street cars.

They look like awesome coils. No CDI or igniter unit required. Less to go wrong?

How have they performed for you rob?

Why do you not like CDI systems? Because of the electrical interferance and low dwell time?

rob82 Mentor

rob82

Posted
Posted (edited)

They look like awesome coils. No CDI or igniter unit required. Less to go wrong?

How have they performed for you rob?

Why do you not like CDI systems? Because of the electrical interferance and low dwell time?

I'm about to turn up the wick on a certain engine that will be in the vacinity of 2000hp with these coils - currently at 1260hp and no issues with 1.1mm at 18psi. Have seen them not misfire with 1.1mm gap at this boost with mixtures as rich as lambda 0.67.

CDI is good if you want high peak secondary current and minimal dwell time - issues I have with CDI is eletrcial interference and low spark duration coupled with extra cost. Only thing with these coils and LS2 series coils is the dwell time can be as large as 5ms at 14V for full spark energy which can be a bit much on non sequential setups with rapid accelleration rates and flat shifting. Doubt most people would run into this issue though.

Edited by rob82
The Dan Grand Master

The Dan

Posted
Posted

I'm about to turn up the wick on a certain engine that will be in the vacinity of 2000hp with these coils - currently at 1260hp and no issues with 1.1mm at 18psi. Have seen them not misfire with 1.1mm gap at this boost with mixtures as rich as lambda 0.67.

CDI is good if you want high peak secondary current and minimal dwell time - issues I have with CDI is eletrcial interference and low spark duration coupled with extra cost. Only thing with these coils and LS2 series coils is the dwell time can be as large as 5ms at 14V for full spark energy which can be a bit much on non sequential setups with rapid accelleration rates and flat shifting. Doubt most people would run into this issue though.

Isn't it easier to ignite the air/fuel on an engine that has a much larger bore like that one?

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

http://www.aemelectr...smart-coil-1240

This is what I would use - best inductive ignition system I've seen.

I tend to prefer running inductive ignition system compared to cdi on almost all applications - especially on street cars.

Certainly look like great value for money - any potential downside?
rob82 Mentor

rob82

Posted
Posted (edited)

Isn't it easier to ignite the air/fuel on an engine that has a much larger bore like that one?

Yep - generally the higher the torque the greater the cylinder pressures so the higher harder it is on the ignition system...

I haven't try these coils on an xr6t, because they wouldn't fit very well but the are probably one car that really pushes a coils ability and I know just the car to test on. If I get to test them on that car I will let you guys know how they hold up?

Also the only other downside is that they aren't cop...

Edited by rob82
HYPED6 Collaborator

HYPED6

Posted
Posted

We have run these coils on a 140mph 1jz running nos for the last 12 months.

Very good coil charge time with amp saturation. Would I run them on 50+psi probably not.

That's not to say that they wouldn't do it, I would not like to commit and say they will and then have to fit CDI any way.

I have found that inductive just seems to run nicer with back to back tests. Engines just sound that little bit happier.

The Dan Grand Master

The Dan

Posted
Posted

We have run these coils on a 140mph 1jz running nos for the last 12 months.

Very good coil charge time with amp saturation. Would I run them on 50+psi probably not.

That's not to say that they wouldn't do it, I would not like to commit and say they will and then have to fit CDI any way.

I have found that inductive just seems to run nicer with back to back tests. Engines just sound that little bit happier.

Everyone likes a happy engine don't they

HYPED6 Collaborator

HYPED6

Posted
Posted

Well at the end of the day, after cylinder pressure and temp, Egts, MBT, BSFC, gudgeon pin size, exhaust wheel temp, oil pressure and temperature all we are doing in pleasuring the engine just how it likes it.

Golden rule, give the engine what it wants. If it wants CDI it gets CDI. If it want 28 degrees of ignition timing at 30psi of boost and a 175 shot of gas then give it 28 degrees.

Its kinda like an extremely high maintenance gf. You work and work for months just to be able to take it out and show it off to your friends then it craps in your face just to keep you keen (Or on the highway at the top of 4th gear) when it doesn't get its way.

kitto Mentor

kitto

Posted
Posted

The only downfall i can see with these is they are a damn big coil. Mounting 6 of these may not be the easiest to do so.

But i do like, and these have risen to the No 1 on my most likely coil to buy for my setup.

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

I'm about to turn up the wick on a certain engine that will be in the vacinity of 2000hp with these coils - currently at 1260hp and no issues with 1.1mm at 18psi. Have seen them not misfire with 1.1mm gap at this boost with mixtures as rich as lambda 0.67.

CDI is good if you want high peak secondary current and minimal dwell time - issues I have with CDI is eletrcial interference and low spark duration coupled with extra cost. Only thing with these coils and LS2 series coils is the dwell time can be as large as 5ms at 14V for full spark energy which can be a bit much on non sequential setups with rapid accelleration rates and flat shifting. Doubt most people would run into this issue though.

So these would be worth a try on my RB30/25 aiming at 330 - 350 awkw with a rev limit of 6800 and no flat shifting or would I need to change my Link G4 with 4 ignition channels for a Link Extreme to allow sequential firing?

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • nouveau_poor
      Unknown sound similar to BOV on positive boost with partial throttle RB26

      By nouveau_poor 路 Posted

      Absolutely could be. I collected data logs from when the O2 sensor was still out and also after I had replaced it so will try to compare them. Pretty confident that the affect is lowered with the new sensor, will check logs at the same RPMs/conditions. 
    • Bennym35
      New guy

      By Bennym35 路 Posted

      Hey guys Long time lurker, I daily a nm35 stagea 250t rs four and I've had it for almost 2 years (very reliable 馃憣). Issues or just looking for information ill always find myself here having a read, so thought id join.  3inch stainless intake, pod filter, AM performance turbo dump pipe, 3inch hotdog, 3 and half inch stainless to 3 and half inch AM performance blast pipes. Bc racing coilovers. 18inch rims Hdi intercooler and trans cooler soon.  Here's my car
    • Songo
      New kid on the block

      By Songo 路 Posted

      thanks for the advice on the box... i was thinking the 6 speed was better for cruising on the highway but on closer inspection and comparison the Rb 5 speed box was not too different...  So the choice is going to be the RB25 box... if I can save up and find one at the right price  
    • Songo
      New kid on the block

      By Songo 路 Posted

      Thanks Matt, yes that's what i am aiming for. Just going to apply the right voltage and grounds to the dash connector. Hence my search for these pins... any chance you know if these pins are in the same spot as the ones on the S15 Dash connector? as mentioned above on page 8?
    • TurboTapin
      R32 GTST - 600KW+ RB28/CD009 Build

      By TurboTapin 路 Posted

      Yes, unfortunately that's the one. Signal was noisy to begin with; after driving once and looking back at the logs I saw pressure constantly swinging between 0-200psi, or staying at 0 randomly for a few seconds. There's a lot of good sensors that share the same look and feel, so don't presume they're all bad. I bought mine for 20$ off Amazon and I should have read the reviews prior, as it's clear they're junk.  I purchased a lowdollerr motorsports sensor. 
脳
脳
  • Create New...