Thread: My08 STI
View Single Post
  #330  
Old 05-04-2015, 09:18 PM
Rossco's Avatar
Rossco Rossco is offline
Perth WRX Old Skool Cool Dude
Member
  
Join Date: Apr 2007
Location: Perf, NOR
Posts: 5,467
Blog Entries: 11
Thanks: 54
Thanked 100 Times in 79 Posts
Rossco is a guruRossco is a guru
Send a message via MSN to Rossco
Default
Quote:
Originally Posted by nick73 View Post
Hi Rossco,

Are you tapering boost down between 5500-8500? Is that why you are able to go back up to 12 on the afr's?
I don't tune any boost taper in - there may be a slight drop of 2-3psi by redline due to the VF34 being out of puff though.

AFR's of 12-12.5 (after peak torque) have proven to be safe on my frankenmotor.

Every engine is different & mine has pretty good volumetric efficiency up top.
__________________
[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]
Reply With Quote
The Following User Says Thank You to Rossco For This Useful Post:
nick73 (05-04-2015)