Mcx 290 bov?

[Jona$]

Started the sled up after mounting the 290kit and no faulty codes and sounded great. Only thing that cought my attention was that there was no bov sound when letting the throttle go at high rev.

I am new to turbo but shouldnt the mitsubishi bov dump even tough i only ran it with out the primary"thinking about making it pull weight"

And also noticed that when pumping gas it could shut down.. nothing that i do out in the snow but something it soure didnt before.

 

[TBird]

No boost = no need to let out pressure when releasing the throttle!
It's almost impossible to get any boost, even with an mountain track and sled on a stand, and without primary there's not a chance there's any boost!

and the second q, do you know how to get in to diagnostic mode?
else do a search on this forum, it has been posted several times,
if you change the co you get rid of that,

 

[Jona$]

well ive seen a post somewhere, think its in the technical-section.

The question then is how what i should put em at, and c1-c4 shall have the same numbers i pressume?

 

[mulot30th]

No boost = no need to let out pressure when releasing the throttle!
It's almost impossible to get any boost, even with an mountain track and sled on a stand, and without primary there's not a chance there's any boost!

and the second q, do you know how to get in to diagnostic mode?
else do a search on this forum, it has been posted several times,
if you change the co you get rid of that,

I have to disagree with you:
With mountain track on stand, I do get full boost on stand, take 2 or so seconds but it gets there.


but... no clutch? may be lucky just to get 0 vacuum

 

[TBird]

No boost = no need to let out pressure when releasing the throttle!
It's almost impossible to get any boost, even with an mountain track and sled on a stand, and without primary there's not a chance there's any boost!

and the second q, do you know how to get in to diagnostic mode?
else do a search on this forum, it has been posted several times,
if you change the co you get rid of that,

I have to disagree with you:
With mountain track on stand, I do get full boost on stand, take 2 or so seconds but it gets there.


but... no clutch? may be lucky just to get 0 vacuum

And you have the clips left in the track? .
I haven't been that brave, only stabbed the throttle rapidly, doesen't see the point,

 

[TBird]

well ive seen a post somewhere, think its in the technical-section.

The question then is how what i should put em at, and c1-c4 shall have the same numbers i pressume?

yupp, if you don't have any way to measure the cylinders separatly

 

[Jona$]

ok, dont have any lambda installed yet, only water and boostpressure-gauges.

Heard people speaking about -10 to -15.
Dont now what to do really.
Wanna get it right but dont really wanna spend any more money for example widebandlambda.

Or having to pulling the plugs all the time checking for if they are going to lean.

 

[Jona$]

Dont really get it
the turbocharger uses the exhaust flow from the engine to spin a turbine, which in turn spins an air pump.

So how can it need to work only when the engine get to work under pressure.
I mean it sends out as much air when working when reving the macinhe without the primary at 6000rpms as is it does pulling a chute in 6000rpms?

 

[mbarryracing]

Turbo's function on exhaust "heat" not just flow, so it's based on load and not RPM like a SC.
That is why you can run 8000 rpm at part throttle building no boost and also run 8000 rpm at WOT building max boost.