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-   -   Which tune can hold redline? (https://www.ft86club.com/forums/showthread.php?t=50797)

Turbo Den 11-06-2013 12:02 PM

Which tune can hold redline?
 
which tune can hold the redline, instead of bouncing back like stock, or drop off from a cliff like my ecutek now.

I want the tune can hold the redline for two seconds max.

Thanks

canu_50 11-06-2013 12:22 PM

With OFT you can adjust the redline bounce to soften it up just like in old days car!

empower-auto 11-06-2013 12:29 PM

Swap in a 1JZ


edit: ... :)

ducks 11-06-2013 12:32 PM

moto-mike @ moto-east offers tunes with that feature

xjohnx 11-06-2013 02:02 PM

any tuner can do this, but i believe Moto-Mike was the first to offer the softer limiters on this platform.

jamesm 11-06-2013 03:00 PM

Yeah that's a super easy change. Set rev limiters to x and x-50 where x is your intended redline.

Circuit Motorsports 11-07-2013 07:25 PM

Quote:

Originally Posted by Turbo Den (Post 1315816)
which tune can hold the redline, instead of bouncing back like stock, or drop off from a cliff like my ecutek now.

I want the tune can hold the redline for two seconds max.

Thanks

EcuTek can be used to tune the rev limits. Instead of the factory 200rpm and 350rpm bounce, it can be set to a much lower value such as 50 or even 20 rpm hysteresis for a much smoother rev limiter.

Floggin Tires 11-09-2013 01:00 PM

As others have stated.
Most all if not every tune can be easily ... tuned for this.
An exaple in Open Flash Tablet▼
Quote:

Originally Posted by Shit Luck (Post 1225894)
rev limiter- would like the car to stay on it so to speak for sliding.

Quote:

Originally Posted by shiv@vishnu
Rev Limit: There are two rev limits, A and B.
You can find them by going to the Limit category. Keep both Rev Limit A and B set to the same values.
In each parameter, there are two values.
The bigger (first) value on defines the RPM at which ignition is cut.
The smaller (second) value defines when ignition comes back on.
The default map has a 150RPM difference between the two values.
This softens the rev limit a bit (the stock difference is 250-300rpm IIRC).
You can soften the limit more by raising the lower value close to the value of the upper value.
So using 7600 and 7550 will be pretty soft feeling!

Shiv

I'm not promoting one system over another.:cheers:

Xero-Limit 11-10-2013 11:26 PM

Not quite that easy ;)

It is one thing to set a lower hysteresis, yet another to do what we do. The lower hysteresis bounces the cam chain to death and rattles the pistons off the wrist pins, while ours is buttery smooth like a dirt bike rev limit. We use custom mapping to do this via RaceROM, and it is switchable with maps. Won't do that with anything else.

yuicebox 11-12-2013 02:27 PM

Quote:

Originally Posted by moto-mike (Post 1323895)
Not quite that easy ;)

It is one thing to set a lower hysteresis, yet another to do what we do. The lower hysteresis bounces the cam chain to death and rattles the pistons off the wrist pins, while ours is buttery smooth like a dirt bike rev limit. We use custom mapping to do this via RaceROM, and it is switchable with maps. Won't do that with anything else.

so how exactly is yours different? like what about the custom mapping prevents bouncing the cam chain and rattling the pistons? not doubting, just not sure I understand

CSG Mike 11-12-2013 03:32 PM

We have the timing pulled up top, so the output drops so dramatically that the engine physically won't rev any higher.

We do this to protect the blower, cam chain, and any thing else in the engine that doesn't really want to see shock load.

This results in ZERO bouncing. The car sits at redline similar to how the car would sit at 2k rpm, if you stepped on the gas pedal to get to 2k RPM and held your foot at the right position.


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