Rex7-93

I was wondering about 2 step for the RX7. I have searched but havent seen any sort of 2 step control for the rx7. there are ones for supras, evo and hondas but i was just wondering if they have anything for the rx7

windom

iTrader: (1)

The ones controlled by ECU's are generally damaging to the engine. They will cause side seal damage I believe. From what Crispeed has recommended, you can do a setup with MSD ignition amps and a module. This is apparently a softer cut.

trainwreck517

iTrader: (1)

Can you give more info on this? As I have never heard any of that before.


Some stand alones have 2 step feature which is pretty much a hard ignition cut. Although the engine is undamaged.. Your turbo will most likely die pretty quickly do the strong exhaust after burn pulses.

Or you can just use MSD 6AL with two step module.

windom

iTrader: (1)

Some good information in here.

https://www.rx7club.com/showthread.p...=stage+limiter

And here

https://www.rx7club.com/showthread.p...ighlight=stage

LUPE

Buy two relays, (One per Trailing Coil), hook a switch to the relays to turn off the trailing coils, buy a msd 2 step box, hook that up, done deal.

Worked great for me, was able to build close to 20 psi.

trainwreck517

iTrader: (1)

That really gave no detail why the engine should fail during two step launches..

windom

iTrader: (1)

I would give Pluto a PM if you want to know about engine damage occurance from it's use. He knows a lot from personal experience on this. I mis-read and thought you wanted to know about the MSD setup. Sorry.

"I prefer to stay out of this thread since both the anti-lag and 2-step aren't healthy to the engine. unless you plan to rebuild your engine once a year, I wouldn't recommend using either of those methods. Both will cause side seals to expand and stick pre-maturely and requires more tear-down than normal to maintain the engine. I have been using anti-lag for years. its awesome launching at 20+psi of boost and getting low 1.4's on ET streets even with a lightweight flywheel but I wouldn't do it on a daily car.



just my .02"

LUPE

I was able to throw down 1.43 short times without my 2 step...... that was just free revving to 7K and dropping the clutch.