FG, Does Overboost=Limp home mode?

[bupalooga]

So I've just installed a 4" Dump - 5" Cat in preparation to be Tuned on Friday, Problem being I need to drive 6hrs to get to the tuner. Everyone says this will cause Overboost so I took it for a drive to try and activate Limp mode so I would know when it happens and what I'm dealing with rather than finding it all out in the middle of woop woop.

Boost seemed to peak at 13psi (OBDII-android device) gunning it in 2nd or 3rd but once peaked it wouldn't boost past 3psi until the engine was shut off, no codes or lights. Made all the regular noises and ran Perfectly but with the power of an n/a xr6 and without the push back into the seat.

Is this what normally happens or am I not thrashing it hard enough? Doesn't seem so bad.

Also has full exhaust, turbo side intake, stage2 PW Intercooler. Never Tuned

[Wilko16]

Surely this post is a joke?

If you just drive it off boost it will get the tuner fine

Do you understand what the problem with over boosting is ?

Ever heard of the word "LEAN" ?

And by the sounds of it you have just tried to blow your engine up a few times

If your lucky limp mode may have saved you

[bupalooga]

I thought that was the point of these safely modes, to stop it going too far out of bounds to cause damage.

[Wilko16]

Yeah it protects it, when it is in stock form

You have bolted all theses extra parts on that make the engine breath more air in

So the stock tune has no idea what's happening, and by the time it catches the issue

It can be to late

Just baby the car until it's tuned, flog it afterwards

[MurdoK]

^This. I wouldnt be relying on an engine light to come on to tell me there is a problem or ive pushed it too far. Pretty original thinking however

[El Andrew]

Exactly what wilko16 said - if you drive it reasonably gently to the tuner, you'll be well within factory safety levels.