Ignition cut rev limiter possible?

Tuning discussion for all first generation Mazda RX-8 (2004-2008)
Maanghod
Posts: 1
Joined: October 5th, 2019, 4:35 am

Ignition cut rev limiter possible?

Post by Maanghod »

Hi guys,

I’m wondering if it’s possible to replace the factory fuel cut rev limiter with a (popcorn) ignition cut rev limiter. The reason I am asking is that sometimes when I have to accelerate fast, I end up hitting the limiter. And with it being a fuel cut limiter which I know Mazda only chose in order to protect the catalyst from having lots of unburned fuel dumped into it (as with an ignition cut), I’m a bit concerned about LEAN AFR peaks, even if for a split second... But I have a decat pipe, so there’s no catalyst to destroy.

Thanks.
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Ugnius @ VersaTune
Lead developer
Posts: 473
Joined: March 19th, 2010, 11:57 am

Re: Ignition cut rev limiter possible?

Post by Ugnius @ VersaTune »

This feature is not currently available, we would have to investigate how much work it is to add something like that.
LedFlava
Posts: 3
Joined: February 13th, 2020, 1:11 am

Re: Ignition cut rev limiter possible?

Post by LedFlava »

Bumping this because I'd love to go this route instead of fuel cut for launch control
10k RPM
Posts: 6
Joined: April 25th, 2020, 8:43 pm

Re: Ignition cut rev limiter possible?

Post by 10k RPM »

Hello brappers (Brrrap-Brrrap),

Any news on this ignition-cut launch limiter ?

Cheers,
Stelios :drive
McTinkerson
Posts: 10
Joined: March 1st, 2020, 8:00 am

Re: Ignition cut rev limiter possible?

Post by McTinkerson »

I would like to also express interest in this. Having 2 step capabilities would be nice.
malijames12
Posts: 2
Joined: September 9th, 2020, 11:40 pm

Re: Ignition cut rev limiter possible?

Post by malijames12 »

Bumping this. Wouldn't mind if it required Versatuner Full to justify the extra R&D cost.
chrizzo96
Posts: 1
Joined: July 22nd, 2021, 12:00 am

Re: Ignition cut rev limiter possible?

Post by chrizzo96 »

Bumping again , this is a need
d-LoiX
Posts: 2
Joined: August 12th, 2021, 12:49 pm

Re: Ignition cut rev limiter possible?

Post by d-LoiX »

Interested!
mituc
VersaTuner guru
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Location: Iasi/Romania

Re: Ignition cut rev limiter possible?

Post by mituc »

It's possible that the other platforms (2.3DISI-T in particular) may benefit from this especially when aux fueling is used, because when a limit is hit the fuel is not entirely cut.
2008 Cosmic Blue Mazda 3MPS
Built engine + WMI + GTX3071, ~476WHP @31-32PSI
2008 Icy Blue Mazda CX7
Stock engine and exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 320-ish BHP
WankeYankey
Posts: 5
Joined: August 16th, 2021, 12:17 pm

Re: Ignition cut rev limiter possible?

Post by WankeYankey »

Also very interested, would feel much more comfortable with an ignition cut than the fuel cut.
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