boost question??
 

hi, was wondering when the boost is ment to come on, on a standard wrx newage impreza and also is there any difference between standard wrx and sti when the boost comes on??

thanks
jamie

anybody???

Hi Jamie depends on car and turbo,which car is equipped.
Here is mine RR graph,just standard JDM Bugeye WRX
http://i877.photobucket.com/albums/a...g?t=1296094061



Jura

cool thanks altho mine is just the baby wrx bugeye:( and im guessing by that graph yours kicks in at 3500 revs?

Hi Jamie at 3.5k RPM have full boost(1.0bar),but spooling from around 2.6k-2.8k RPM
But now is fitted with VF34 which have similar characteristic spooling,but make more BHP(350-360bhp at 1.4-1.5bar)



Jura

for some reason it feels like theres something holding mine back as mine is on full chat at about 4000 which i dont think is right, i got a feeling it might be the ****e dumpvalve i have on but not shore :confused:

And you have what model WRX or STi?
You have any mods on car,which are unmapped?




Jura

its a 02 wrx bugeye totally standard apart from a baileys dump valve which came with the car and have also read they are the worse dumpvalve too so am thinking of changing or going back to standard also have just put on a cat back exhaust but my cats are still in place its been boosting like this since ive had the car so the exhaust hasnt changed it

jamie

Hi Jamie get rid of Bailey DV and get Forge Recirc Valve or standard OE Recirc Valve.
For best you will try book your car for RR(Rolling Road),where you will when car start spooling and where is peak and etc.Cost for RR is around £45-£55.
This is best option for you,matey



Jura

thanks jura will defo change the dumpvale and try and get it on the rollers :thumb:

jamie

Here is the Prodrive brochure which appears to have a standard WRX map on the graph also. I'd imagine your car should be similar (I think the ECU's changed, hence MY03 onwards quoted, but wouldn't have thought the basic map would be much or any different...).

http://www.prodrive.com/up/03MY%20WRX%20PPP.pdf

Basically you should feel it really start to pull from 3000rpm. As stated above you really need to get rid of that DV as your likely loosing power with it on.

Hope that helps a bit.

cheers mmcd87 and yeah am defo getting rid of that dumpvalve!

Sorry I never even put the link up - it's there now.