Is the profec specII that bad?
#1
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Is the profec specII that bad?
How many FC's are using this controller and is it really that bad? I just bought one and am wondering If I should return it are not!
Take a look at this https://www.rx7club.com/showthread.p...hreadid=292114
Take a look at this https://www.rx7club.com/showthread.p...hreadid=292114
Last edited by 7'sfalife; 04-30-04 at 03:00 PM.
#3
My AE used to have one, but the previous owner advised me to remove it due to the accuracy of it. He said it could a psi or two off, which isn't good for a highly moddified TII. I cannot say i have any bad experiences with it, but the previous owner, who knows his ****, advised me to sell it and get a MBC.
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#11
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Originally posted by BDoty311
but the previous owner, who knows his ****, advised me to sell it and get a MBC.
but the previous owner, who knows his ****, advised me to sell it and get a MBC.
As for the Spec II, I have not yet had any problems with mine. it seems to be working great if i'm running 1bar or 1.3. FWIW, I have a .7 bar spring.
-Chris
#12
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I took off all the Greddy Profecc and Rebic boost and injector controls off my TII because it was worthless **** that promoted detonation. Greddy stuff sucks ***, if you ask me. I wasted big $$$ on that crap.
#16
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if it's a psi or 2 off it's because it's reading turbo outlet pressure and not TB pressure which will be different.... your boost gauge will read TB pressure which will be lower. unless the controller has a line to the TB to read boost. in which case ignore...
#17
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Originally posted by carx7
I have to say that anybody who knows what they are talking about would not recommend a manual boost controller over an EBC.
I have to say that anybody who knows what they are talking about would not recommend a manual boost controller over an EBC.
I can almost guarantee that nearly all problems with electronic boost controllers on FC's is actually caused by the controller trying in vain to deal with boost creep. Unless you have rock-solid control of your boost without a controller, you'll never have proper boost control with one.
All an EBC does is delay the opening of the wastegate and then regulate the flap position to keep boost where you set it. it cannot increase wastegate flow, so if the wastegate's fully open and it can't flow any more, your expensive controller is basically useless.
#19
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EBC's don't read boost pressure at the turbo, they have a separate pressure sensor that should be connected to a post-TB nipple or teed into a post-TB line (MAP sensor, BOV). The solenoid valve gets connected to the turbo and wastegate.
#20
SUPERnaturally Aspirated
there was a good boost controller comparisson in SCC and i found it online
http://www.sportcompactcarweb.com/te..._boostcontrol/
http://www.sportcompactcarweb.com/te..._boostcontrol/
#21
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Can you just T it in with the boost guage line you already have run through the fire wall? At least I do because of my boost gauge. Is this wrong? In the instructions that came with the specII it said to T into the fuel pressure regulator! What up with that should I!
#22
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Originally posted by 7'sfalife
Can you just T it in with the boost guage line you already have run through the fire wall?
Can you just T it in with the boost guage line you already have run through the fire wall?
In the instructions that came with the specII it said to T into the fuel pressure regulator!
What up with that should I!
Last edited by NZConvertible; 05-03-04 at 02:56 AM.
#23
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Originally posted by eViLRotor
Where is the best nipple to take the pressure source from that goes into the NC port on the solenoid?
Where is the best nipple to take the pressure source from that goes into the NC port on the solenoid?
-Chris
#24
Brother of the Rotary
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Originally posted by carx7
I'm thinking that i fed off the middle nipple on the front side of the UIM by the TB... there is a row of three there and I think that middle one is the one that everyone should use... but I'll have to re look at my car tonight... that detail seems to be slipping my mind right now.
-Chris
I'm thinking that i fed off the middle nipple on the front side of the UIM by the TB... there is a row of three there and I think that middle one is the one that everyone should use... but I'll have to re look at my car tonight... that detail seems to be slipping my mind right now.
-Chris
Just FYI, it was planning on Teeing it off my BOV line: