boost problem

[DeaneMsport_180sx]

just something i noticed while i was drifting in punchestown...
whe i upshifted from 2nd to 3rd the boost went off the clock(over 2 bar ) but then it immediatly dropped back down again...was just wonderin if my boost gauge is fooked or what
also i wasnt fully taking my foot off da throttle when i was changin up so maybe that has something to do with it???
any advice would be greatly appreciated

[bubble1984]

sounds like a big spike? try a different actuator. is it hks? or fiddle with ur boost controller, id say the boost controller if u have one could be a lot to do with it.

[DeaneMsport_180sx]

ya its a HKS actuator....would dat b bad do you think or could it be left alone?
and i dont have a boost controler it was just set to 1.1 bar when i got it mapped on a motec....
thanks for the help btw

[Famous jh]

ya its a HKS actuator....would dat b bad do you think or could it be left alone?
and i dont have a boost controler it was just set to 1.1 bar when i got it mapped on a motec....
thanks for the help btw

You'd hardly be gettin a boost spike of 1bar would ya? Doubtful tis your boost guage it would be doin it all the time otherwise surely?!

Bring it out for a lash on the road and give it full boost in 5th and see will it do it under full load then

[bubble1984]

i dont tink its that bad, its only for a second or less, but it is a big spike, a boost contoller would help get rid of that spike id say

[Famous jh]

i dont tink its that bad, its only for a second or less, but it is a big spike, a boost contoller would help get rid of that spike id say

Ruby you mad man Theres no way a boost spike of 1bar is anything else but baaaaaaaad imo

[2tonne]

Ruby you mad man Theres no way a boost spike of 1bar is anything else but baaaaaaaad imo

As above - 1 bar is a bloody high spike!!
have you a boost controller fitted?
and what dump valve arrangement is on the car?

[DeaneMsport_180sx]

well with this boost gauge i can check what the peak boost was and it was off the clock after a lot of the runs...
i dont have a boost controller....its a recirculating dump valve
the boost gauge also tells beeps at me when its gone over a certain level of boost and when it did beep by the time a had looked at it it had gone down again so its only for a very short time

[bubble1984]

and i dont have a boost controler it was just set to 1.1 bar when i got it mapped on a motec....
thanks for the help btw

how long ago was the car mapped? if it was recently you should ask whoever mapped it to have a look at the issue. although im sure he/she would have noticed such a large spike. he/she should have recommended a boost controller. them actuators sometimes give trouble.

check ur pipe on the actuator that its ok. like jh says a good road spin will tell alot more. if thats possible.

alternatively run 2 bar boost. wohoo

[Famous jh]

alternatively run 2 bar boost. wohoo

Now yer comin round to my way of thinkin........ YeeeeeeeeeHAAAAWWW