Highest boost pressure on daily driver (18g)
#1
Highest boost pressure on daily driver (18g)
Hi,
What would you say would be the recommended highest boost to run for a daily driver? The tune will be pretty conservative (regarding fuel and ign.).
The followings mods are done:
800 cc injectors
Walbro 255 fp.
Fuel rail
Large TMIC
3 inch exhaust (+uppipe and downpipe)
Intake
The car is a 2004 STi.
Thanks!
/Peter
What would you say would be the recommended highest boost to run for a daily driver? The tune will be pretty conservative (regarding fuel and ign.).
The followings mods are done:
800 cc injectors
Walbro 255 fp.
Fuel rail
Large TMIC
3 inch exhaust (+uppipe and downpipe)
Intake
The car is a 2004 STi.
Thanks!
/Peter
#4
Havn't heard anything about the problems with the 800 injectors but I'll guess that's too late anyway (they are allready in the car)..
I'll be using 99 octane fuel. My tuner thought it would be ok to run about 23-25 psi of boost. Is this too high?
My driving-style is pretty normal I think. Everyday to work and back in pretty slow haste. Maybe one or two track-days and some weekend "spiritued driving".
/Peter
I'll be using 99 octane fuel. My tuner thought it would be ok to run about 23-25 psi of boost. Is this too high?
My driving-style is pretty normal I think. Everyday to work and back in pretty slow haste. Maybe one or two track-days and some weekend "spiritued driving".
/Peter
#7
Subaru Tuning Specialist
Join Date: Jun 2002
Location: 7.74 @179 mph 1/4 mile - road legal
Posts: 6,654
Likes: 0
Received 1 Like
on
1 Post
Originally Posted by p_ilis
The tune will be pretty conservative
You would be better running around 1.5bar midrange - 1.4 top end and optimising the timing and fueling, especially if you are doing trackdays on a TMIC.
Andy
Trending Topics
#8
Originally Posted by p_ilis
My tuner thought it would be ok to run about 23-25 psi of boost.
/Peter
/Peter
#9
Ecu Specialist
On that car I wouldn't run quite up to Andy's suggested levels, 1.4 mid range and 1.3 bar max at the redline (if the turbo will hold up to that). Your tuner needs to pay lots of attention to his choice of afr.
800's are fine given he knows how to set up for them, is he fitting aftermarket managment or remapping the OEM ecu ? Is he trying to do this using the std VF35 turbo ? If so at his suggested boost levels it will produce a lot of very hot air and not much else.
edited to add you are using an 18G so turbo comments not so relevent but his values still ott even for that I suggest.
best regards
bob
800's are fine given he knows how to set up for them, is he fitting aftermarket managment or remapping the OEM ecu ? Is he trying to do this using the std VF35 turbo ? If so at his suggested boost levels it will produce a lot of very hot air and not much else.
edited to add you are using an 18G so turbo comments not so relevent but his values still ott even for that I suggest.
best regards
bob
Thread
Thread Starter
Forum
Replies
Last Post
Sam Witwicky
Engine Management and ECU Remapping
17
13 November 2015 10:49 AM