Will car shift 4th in Aristo tranny with SLD? (WOT)

[Splash]

Just ordered myself the pivot speed limit defencer and was wodering if I fit it on my 2jz-gte Aristo engine with auto tranny, will the car shift 4th at wot (wide open throttle) knowing that the 180km limit is in 3rd?

I find it hard to understand how it would, given that the tranny gives the ecu the speed for it to shift!

[PlacentaJuan]

its an interesting question, i guess you would need to get a speed cut defender to try it out hey.

i am assuming you have somewhere to drive at 180km/h+??

let us know your findings jawa

[-GT-]

i am assuming you have somewhere to drive at 180km/h+??
jawa

Looking at his location i'd say yes, he just might

It did get the brain ticking over that one. And i figure that for somebody who wants to remove the 180km/h limiter they'd be wanting to pass 180 clicks at a tad more than 30% throttle occasionally - hence i'd like to think it'll hit 4th at full noise...

Those interceptors take the speed signal and (insert understanding of electronics here) get the signal to plateau shy of 180, say 160-170, so the computer thinks the car never gets to 180. If the ecu needs to know the speed is well high of 200 or wherever it would shift you might be in a bit of trouble. But i'd still like to think whoever makes those contraptions would've tested and encountered/rectified an issue such as that.

Guess you'll have to try and see, i'll be waiting to hear

[Splash]

I should be recieving the SLD by today or tomorrow. Will take it to the dragstrip to check it out, coz last time I hit the speed cut 30 meteres before the finish line and I was running low boost!!

Thanks anyways guys, as you said, gotta try it myself

[Mr DOHC]

ok, need details of this 2JZ celica

[Splash]

84 Celica XT coupe
2jz-gte of an aristo (auto)
Garette T04R-70 with 780cc injectors
Hybrid intercooler
SAFC II
3800 stall converter
3" exhaust
Ran 12.3@185 with 14psi and hitting speed cut 30 meters shy of finish

Next step, fitting SLD and shooting 150+ NOS

[PlacentaJuan]

nice car, i hope you have more pics and do a members rides thread!

[Splash]

Thanks man,
I'll do so once I hit 10's

[CrUZida]

At full throttle, I am led to beleive it won't.

Due to at full throttle it will not change gears until a certain speed.
And with the speed cut defender the ECU never sees a speed higher than ~175kph.

So the Soarer people say you have to back off the throttle for it to change into 4th, and then go back to full throttle.

[jezza323]

but when u jumped back on the throttle wouldnt it kick down to 3rd again?

[PlacentaJuan]

what about if you did southos trick of using a resistor in the tps to limit the throttle signal to 95% or thereabouts?

would this also have any effect on the mixture?

the butterfly would be open 100% but the computer would only see 95% (for some reason the 2jz cressidas hit rev limiter even tohugh the car is not revving that high at wot)

[CrUZida]

but when u jumped back on the throttle wouldnt it kick down to 3rd again?

No, because its above the kickdown point.

At least, thats what I'm led to beleive, never personally done it.

It all depends on your diff ratio too.

[Splash]

That i was thinking in fact Cruzida

gotta check it myself and letting u know

[Splash]

One more thing that came up in my mind and wanted to share,
If the SLD stables the signal at 175km/h, wouldn't the ecu think that I'm easing on the throttle and shifts as the car started cruising?

Still, need to check for the optimum answer

[CrUZida]

With the throttle still at WOT, it will not change up.
As soon as you back off, it will think you are easing, and will change.