overboost....still!!!

[Dazz0i]

i believe, my car is still overboosting. the defi' is peak warn at 1bar... and i sometimes see that flash when goin' for it.

basically, i'm running just the actuator straight off the hotpipe. no EBC.

I thought it could be a faulty standard actuator, so i've changed that, and now have a HKS adjustable.

The arm on it, is as long as it can be, without the wastegate being completely open.

So, i guess, what i'm basically askin' is, what's the lowest amount of boost that can be run on the HKS actuator?

the gauge appears to be just wobbling which is causing the peak to flash, but still,... i'd rather have the actuator boost lower, and then bring it up with the EBC!

cheers

 

[Yakozan]

I thought that the lowest boost with the HKS actuator arm was 1 Bar??

 

[Dazz0i]

well, i was told less by apex... but maybe you're right.

could do with jono and nicely seeing this, cause i believe both of them have one too...

 

[Nicely]

The HKS will run a minimum of at least 0.7. That's what mine was set to.

 

[sushiming]

yup thats the same as mine low boost is 0.7 on mine..

 

[Dazz0i]

if i extend my arm any more, the WG would be open permanantly....

 

[sushiming]

when u havce time u can pop over to see mine to check it ....but not till next week some time car in the workshop now

 

[Dazz0i]

lookin' and comparing won't solve the problem though.

it's all installed ok,.... the only other thing i can think of doing, is "spacing" the actuator from it's mounting plate. Where it bolts onto it's plate, put a couple washers so that i can make the actuator arm longer.... this then should drop boost some more.

anyone else got any other ideas on what could be the problem?

 

[evade]

you running a bov or is it blocked off?

 

[Dazz0i]

HKS SSQV... so that "shouldn't" be leakin'.... with them being pull type!

 

[Nicely]

Take the actuator arm off, tie the wastegate open and see what she'll boost too.

 

[Dazz0i]

what, completely open...

what should it be makin'? not alot i'd have thought...

 

[Nicely]

Yep, completely open. See what it creeps up to.

 

[Dazz0i]

will do... what sorta number should i be lookin' for?

surely something real low like 0.4, 0.5 bar???

 

[Nicely]

:nod: