Stage 2 Boost Question??

Nick Mc · 06-21-2008, 09:59 AM

I have an 05 sti that i just recently went stage 2 with i have an invidia turbo back (v3 divorced waste gate downpipe and the g200 catback) im runnig the stage 2 91 map live in colorado all we get is 91 for premium and it is boosting higher in the 3 to 5 thousand rpm band but after 5 thousand it drops in boost back to about the stock boost level and just wondering if this is normal or if i should be worried about anything.
Thanks for all your help it is really appreciated

fry_ed · 06-21-2008, 10:09 AM

The stock boost after 5k RPM would be a lot less than 14 psi, so if you're hitting that then youre probably good.

importfanatic17 · 06-21-2008, 10:39 AM

Quote:

Originally Posted by Nick Mc

I have an 05 sti that i just recently went stage 2 with i have an invidia turbo back (v3 divorced waste gate downpipe and the g200 catback) im runnig the stage 2 91 map live in colorado all we get is 91 for premium and it is boosting higher in the 3 to 5 thousand rpm band but after 5 thousand it drops in boost back to about the stock boost level and just wondering if this is normal or if i should be worried about anything.
Thanks for all your help it is really appreciated

The stock turbo tapers greatly in the higher RPM region. It is just due to the fact that it isn't a big turbo so it sounds completely normal to me.

LSE · 06-21-2008, 02:59 PM

it's in the map notes. you're fine.

06-21-2008, 09:59 AM	#1
Nick Mc Junior STI Driver Car: PSM 05 STi Fav Mod: Coming Soon Location: 303 Colorado Posts: 56 Join Date: Nov 2007 Trader Rating: (0)	Stage 2 Boost Question?? I have an 05 sti that i just recently went stage 2 with i have an invidia turbo back (v3 divorced waste gate downpipe and the g200 catback) im runnig the stage 2 91 map live in colorado all we get is 91 for premium and it is boosting higher in the 3 to 5 thousand rpm band but after 5 thousand it drops in boost back to about the stock boost level and just wondering if this is normal or if i should be worried about anything. Thanks for all your help it is really appreciated This ad is not endorsed by this member. Please register or login to hide this ad.

06-21-2008, 10:09 AM	#2
fry_ed Junior STI Driver Fav Mod: student Location: Los Angeles Posts: 191 Join Date: Feb 2004 Trader Rating: (0)	Re: Stage 2 Boost Question?? The stock boost after 5k RPM would be a lot less than 14 psi, so if you're hitting that then youre probably good.

06-21-2008, 02:59 PM	#4
LSE Professional STI Racer Car: 06 STI WRB Fav Mod: Defi Gauges Location: Bethlehem PA Posts: 849 Join Date: Dec 2004 Trader Rating: (0)	Re: Stage 2 Boost Question?? it's in the map notes. you're fine. This ad is not endorsed by this member. Please register or login to hide this ad.