Boost Spike

[Slowpoke]

just installed a boost guage and using the peak hold function discovered I'm suffering from boost spike during gear changes. Still using stock BOV and wastegate. Is the boost spike harmful to the turbo or engine? If so, does that mean I have to change either the stock BOV or wastegate? Pls help, I'm a newbie to turbos.... should have gotten another NA car

[Super7]

some boost controllers can help reduce spike ..... BOV and wastegate change may help (not very sure, lets wait for other bro to confirm.... E36/WRXblue/Saaber... etc, where are you??)

 

 

you driving a T4?? ..............

Edited December 21, 2003 by Super7

[Slowpoke]

I also suffer from BOV flutter at low boost conditions, does that mean the BOV spring to too stiff or not stiff enough? Then at high boost WOT time can hear whistling/leaking sound, I assume its the wastegate opening to bleed off too much boost or is it leaking from the BOV as my friend suggest? Sianz, another set of problems to overcome. Then I came across another term "Boost Creep" what is that?

[Slowpoke]

by T4, do you mean Volvo? Nope, me only got the cheapest Japanese turbo car available now. Daihatsu YRV

[Super7]

..... YRV is a very fast compact car

 

i am also learning about turbo setup etc, lets wait for other bros here to help.....

 

Hey, E36/Saaber/Soya/WRXblue............ where are you???

[S2P2]

in kl lah....

[Super7]

wah lau eh, MCF turbo kings all in KL for Turbo Convention izit??? .... when coming back??

[Gadgeter]

Super7,

 

E36 & Saaber are still in K.L.

[Super7]

wonder what they are up to............ you are the Mr MCF know-all, tell us leh

[S2P2]

today i think

[Gadgeter]

For Holiday... Think, they will be back in the evening.

[Orangie]

Someone's smoking because they bo jio

[Gadgeter]

???? what are you referring to? Anyway, ready to go?

[Soya]

simi boost spike???.....me stock stock leh.

[Wrxblue]

what boost reading are you getting?

first you need to find out what is your stock boost...

then check for all your connection of your boost gauge make sure it is connected properly.

 

if you are using stock wastegate and bov, you should not see this kind of problem unless you have done something to your ECU or your soleniod valve controlling the boost.

[GDIzen]

Did u get aftermarket BOV?

[Hitman]

some boost controllers can help reduce spike ..... BOV and wastegate change may help (not very sure, lets wait for other bro to confirm.... E36/WRXblue/Saaber... etc, where are you??)

 

 

you driving a T4?? ..............

 

 

Wats boost spike ?? Apa ??

 

Me car no turbo but want to know cause in Gran Turismo 2 on Playstation I gotta fully-boosted Toyota Supra and Nissan Skyline, wanna win race ... please tell me, wats Boost Spike ?

[Super7]

i think it refers to the momentorily peaked boost when the turbo charger is pushed hard...... eg if the turbo boost is set at say 1.2 bar, the boost sometimes will go up to 1.6 bar etc for a split second before dropping back to 1.2 bar and hold there ................ dun ask me why it happens coz i also dunno

Edited December 22, 2003 by Super7