rb20det questions

[l adam l]

i've done some research on my rb... itll run fine then to a certain point it will run like **** it kinda sounds like a boxer engine its misfiring so much...its the ignitor chip which i plan on changing to a j30? chip. is that the best one to use? or which one is the best? also what injectors are interchangeable with the rb20?

[Sileighty_85]

As far as RB20's go Electronically not much is really plug an play from other Engines.

You can use an RB25/Z32/J30 ignitor but have to repin and use the new ignitor plugs

same goes for the Injectors they are RB20 specific for OEM plug and play (unless it was a R32 RB25DE)

[l adam l]

so you could use rb25, z32, etc injectors if you were to get the harness for it to repin it?

...nvm i think you answered this already. thanks!

[l adam l]

i plan on running e85 in the future...would 750cc injectors work? i am only wanting 400ishwhp out of this car...i know i need more than just injectors, i need some type of engine management, just seeing if anyone else has used these on e85 before? i've searched and found nothing...if someone has already answered this post a link please!

[DRD]

I had a what sounds like a similar misfire issue. I traced it back to poor grounding of the ignitor. Once those grounds were making a solid connection, I never had another coil pack issue, and never changed the ignitor. My old RB20 setup made 400whp on e85 at 20psi. It was super fun, but extremely laggy. I do not recommend running the same T04E turbo. At that hp/boost level I was maxxing out my walbro 255lph fuel pump. I ran 1000cc modified KA24E injectors, as these were a direct bolt in to the stock fuel rail. High impedance/top feed. For an ecu I ran Apex'i Power FC that was modded for an RB20.

dyno:
https://imagizer.imageshack.us/v2/399x532q90/703/3fpq.jpg

engine:
https://imagizer.imageshack.us/v2/604x453q90/696/rb20rip.jpg

in car video:
e85incar.wmv - YouTube (http://www.youtube.com/watch?v=PKPdaCAEaow)

[DRD]

sorry, just going to dump this here for anyone searching in the future, as I remember it took me forever to find:

RB20DET base ignition map:
https://imagizer.imageshack.us/v2/551x397q90/703/oxqn.jpg


and RB20DET ecu pin out diagram

https://imageshack.com/a/img802/9356/q7pj.gif

[l adam l]

bad grounding on ignitor? just ran grounds to something else or rewired them and back in same spot?

[Con-city_s13]

KA24E injectors are identical to stock rb20 injectors.
I have one on my rb20.

[l adam l]

That's a good tip. Thanks

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