Jump to content
SAU Community

Recommended Posts

i reply to you cos no-one has one or any experience with it.

i didn't want to fork over money just for a simple plug and play procedure.

my daily driving is @0.7bar ~10.2psi otb @ratio of 30% or 13.3psi as the profec a has a tendency to spike whilst the B version is a better unit but I'm not complaining. Much better torque in midrange and overall response than my bleed valve @12psi.

offset is if you want to align the profec a boost reading with a boost gauge as per manual. Not much use for me.

have you connected all your hoses up?

cheers

nathan

Link to comment
https://www.sau.com.au/forums/topic/5472-profec-a-wiring/#findComment-84242
Share on other sites

  • 4 weeks later...

I only just got back from my first run after fitting the profec A. Like yourself I cant get it to go to P1 mode on its own. It goes straight to normal operation. However i did the alternate mode as per info from Greddy site. After power is on hold down power button for 5sec and you get P1 do what you have to and push button twice for P2. After only a quick tune the boost seems a little unstable. In lower gears at 1bar it reaches 10psi (4psi short) and reaches the required 14psi in 3rd and 4th.

I have two questions for you.

1 - Did you leave the back nipple with no hose to atmosphere?

2 - What pwr supply did you use? I connected to accessories which is anoying as the solenoid operates when accessories are on. I need a ignition supply. I thought of the pwr window supply. Also how did you earth it? To chasy, batt, or a nearby earth to something else.

Let me know how stable you get your boost any any tricks you discover. I am off for a good drive tomorrow. I will see how I go.

Hope this helps!!

Greg.

Link to comment
https://www.sau.com.au/forums/topic/5472-profec-a-wiring/#findComment-104534
Share on other sites

I will try the manual way to set it up but I thought it best to do it the normal way(whatever that is no-one knows apprently!!!!). I left the back hose free(once again the manual say's nothing about it). Pull the cigarette lighter out and use the PWR and Earth from that, its ignition pwr and would probably work better in the long run, in case you sit in the car using acc for the stereo etc.

Steve

Link to comment
https://www.sau.com.au/forums/topic/5472-profec-a-wiring/#findComment-105215
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Change the subframe bushes, transforms the car.
    • For something a little more serious, Davinci Resolve is about the best there is for free video editors. No expiration dates or watermarks, completely free.
    • Well, it's taken me until the last week of 2024 to actually do something on the Skyline but I consider it a good head start to 2025's efforts! I managed to justify (to myself anyway...) my purchase of the lift table. It made taking the rear subframe out a lot easier than it would have been without anyway! Everything is out and stripped down ready for a clean then powdercoating.  She's pretty grubby under there but pretty good condition for a 38 year old Japanese tin bucket. 12 years of zero street time have obviously helped that... I need to decide which of the factory suspension arms I will keep and replace so I only get what I'm keeping powdercoated.  Baby steps but it's a start!  
    • Turbo gods, some assistance and recommendations please I'm looking into a turbo kit for my 2.5 from MX5 Mania >>>>> https://mx5mania.com.au/products/copy-of-mx-5-nc-2-5-litre-engine-conversion-turbo-2005-2013 Power wise I would like about 200kw atw, and of course dose noises, apparently if you keep a stock 2.5 under around 200kwatw the engine and drivetrain will not hate life even when ragging on it a bit Max RPM on the 2.5 is around 6500rpm The turbo MX5 use is something around the disco potato size as  packaging room for the turbo is pretty limited, which will, I believe, give me my power goals I want and not have the turbo either under, or oversized, but the rear housing bit is confusing  It comes with either a 0.64 or 0.86 From my understanding, which so far is based off googling, so make of that what you will 0.64: spools faster = good Makes more EGT heat on boost = bad Less topend power than 0.86 = I'm only looking for 200 atw so that point may be mute????, I don't know, hence my questions  0.86: Spools a "little" slower = how much slower??? remembering 6500 is my max rpm Makes less EGT heat = good Makes a little more power up top = again, power goals is only around 200 Also, this is a street car, so there will not really be any long track sessions, in saying this I would want it so it was happy with at least 3 hot laps at Wakefield Park if the need arises  I already have a fancy pants triple pass radiator, and a oil cooler with thermostat will be getting installed as well Thanks for any information or recommendations you have 👍, and of course, the comments about me wasting money on drive in drive out modifications, or any other snide remarks about my manhood for owning a MX5 🤣    
    • Tape some wool onto the vent then take it for a drive I did this to my reverse cowl and was instantly unhappy, as anything over about 60kph would have the wool enter the engine bay, thus just adding underbonnet pressure and stooging my coolant stack, it did let alot of heat out when stationary though, which really didn't help once the car was moving, with the reverse cowl you could watch the coolant temps cheap up the faster you went on the hwy, I assume it would be alot worse doing track day speed With the vented bonnet (just after the radiator and about 1/3 up the bonnet) on my old R33 the wool on the leading edge sat at about a 45° angle as air poured out of it From looking where your vents are, and their size, I believe you should be fine at speed and air should be evacuated from the engine bay, I think it will be a night and day difference when stuck in traffic though for removing the trapped heat, and not sitting there cooking when parked up after driving around... #convection  Post wool tuft pics and data for science  This beastie is one nice and unique rig, enjoy
×
×
  • Create New...