Power FC Does the PFC actually control boost?
#1
Rotary Enthusiast
Thread Starter
iTrader: (1)
Join Date: May 2003
Location: Dallas
Posts: 1,464
Likes: 0
Received 0 Likes
on
0 Posts
Does the PFC actually control boost?
something real bad happened the other day
the car spiked somewhere between 17-20 pounds.
i currenlty have basic bolt ons, no intercooler yet or pfc yet.
ive been thinking about getting the PFC first, but i dont want to have to retune it again after i get a new intercooler.
now does the PFC control boost? or after i get the intercooler and PFC will i still need a profec B? if so, i should just get the profec B now right?
the car spiked somewhere between 17-20 pounds.
i currenlty have basic bolt ons, no intercooler yet or pfc yet.
ive been thinking about getting the PFC first, but i dont want to have to retune it again after i get a new intercooler.
now does the PFC control boost? or after i get the intercooler and PFC will i still need a profec B? if so, i should just get the profec B now right?
#2
Rotary Enthusiast
Yes it does control boost, very well for most setups.
However, there may be something wrong on control system, vacuum, etc, as it shouldn't see that type of spike with a properly maintained stock setup.
What are your "basic" bolt-ons?
However, there may be something wrong on control system, vacuum, etc, as it shouldn't see that type of spike with a properly maintained stock setup.
What are your "basic" bolt-ons?
#3
Senior Member
iTrader: (1)
Join Date: Mar 2001
Location: Bedford, MA, USA
Posts: 379
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by atihun
However, there may be something wrong on control system, vacuum, etc, as it shouldn't see that type of spike with a properly maintained stock setup.
#4
Rotary Enthusiast
Thread Starter
iTrader: (1)
Join Date: May 2003
Location: Dallas
Posts: 1,464
Likes: 0
Received 0 Likes
on
0 Posts
i removed the EGT so there s an opening about half the size of a pen. that is probably causing the spikes. im also sure my CAT is wasted, its still the original.
so a PFC should control boost is what you guys are saying?
so a PFC should control boost is what you guys are saying?
#5
Original Gangster/Rotary!
iTrader: (213)
Originally Posted by potatochobit
i removed the EGT so there s an opening about half the size of a pen. that is probably causing the spikes. im also sure my CAT is wasted, its still the original.
so a PFC should control boost is what you guys are saying?
so a PFC should control boost is what you guys are saying?
You are saying that you removed an aftermarket EGT probe? This will give you an exhaust leak, and not lead to a boost spike.
If your main cat is old and getting clogged, that will lower your boost, not raise it.
Something ain't right, and I doubt a boost controller alone will fix. I recommend keeping your foot out of it, and start poking around your engine bay. You're lucky your motor is still in one piece.
#6
Rotary Enthusiast
Thread Starter
iTrader: (1)
Join Date: May 2003
Location: Dallas
Posts: 1,464
Likes: 0
Received 0 Likes
on
0 Posts
yea it was the EGT probe. i was under the assumption an exhaust leak would cause a free flowing exhaust, hence the spike?
now the spike only occurs at turbo transition. it is not creep. after it spikes it goes down to normal, 10 pounds or so.
perhaps something is wrong then, ill have to have it checked out. i have a 93, when i got the new turbos i put on a 95 turbo control actuator if that matters? so basically everthing on the exhaust manifold outward is from a 95, but i assumed they are the same, although i could be wrong.
now the spike only occurs at turbo transition. it is not creep. after it spikes it goes down to normal, 10 pounds or so.
perhaps something is wrong then, ill have to have it checked out. i have a 93, when i got the new turbos i put on a 95 turbo control actuator if that matters? so basically everthing on the exhaust manifold outward is from a 95, but i assumed they are the same, although i could be wrong.
#7
A WAR WITHOUT WEAPONS
Join Date: Jan 2004
Location: Marion, Ohio
Posts: 248
Likes: 0
Received 0 Likes
on
0 Posts
That Is rather odd... i was driving the 2 nights ago bout 6 in the morning very cold out, and with my PFC i hit 17 lbs. My car starting shaking everything is fine but since i don't have my denzo pump in yet my fuel pressure dropped, i am lucky i didn't pop it. i hit 19 lbs again last night bout 4-5 in the morning again, did the same thing obviously.
But after it was heat soaked, even with it being cold i hit 1.1 bar and my car went sideways @ 60 mph, I liked it
But i need to break out my labtop and retune and put in my denzo pump!
But after it was heat soaked, even with it being cold i hit 1.1 bar and my car went sideways @ 60 mph, I liked it
But i need to break out my labtop and retune and put in my denzo pump!
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post