Jump to content
SAU Community

Recommended Posts

i installed my fmic a few weeks back , i was reading today about something that questioned my opinion.

my piping for the cooler didnt come with a nipple so i taped into the vacume hose off the bov and hooked it to that = now i was reading that it can cause spiking?

what exactly is happening when it spikes if it does ? and am i running a risk having it working off the bov vacume hose?

help would be appreciated thanks

Link to comment
https://www.sau.com.au/forums/topic/144459-fmicboost-question/
Share on other sites

what happened when i had mine setup like that, when i grabbed 4th gear accelerating hard at highway speed, it would jump up to about 14psi for just a second.

then i put the nipple off the stock piping into the pipe from the turbo to the cooler and that solved the problem.

iv been driving a lot and watching my gauge . i noticed that slowly increasin speed during boost it will reach aroun 8 psi . if im close to hitting boost and slam my foot down - she will go to 10 psi - and hold , thats my peak . mind you im running stage 1 mods - fmic , pod , turbo back exhaust - twin split dump pipe , stock boost .

im looking to get a boost controller soon . how high do you recon is safe to go on stock turbo?

i installed my fmic a few weeks back , i was reading today about something that questioned my opinion.

my piping for the cooler didnt come with a nipple so i taped into the vacume hose off the bov and hooked it to that = now i was reading that it can cause spiking?

what exactly is happening when it spikes if it does ? and am i running a risk having it working off the bov vacume hose?

help would be appreciated thanks

hahah dodgy basturd :PPPP..

um might wanna fix that up man.. um, i got the nipple out of my kit, but could proabbly just steal antoehr, and get it welded onto corner of top pipe. i got mine done at TMR engines slacks creek for 50$ :spank: they did it while i waited in about 25 mins.

theres a thread in the forum with their contact details if ur in qld.

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

    • Nah its a server spammer thing  Although, now that I manually approve all the accounts I can probably loosen up some of the restrictions.  
    • Thread bump, again! Although, no bad news this time. Posting for the sake of possible root cause. Basically, I rebuilt it (mostly stock), installed Haltech + sensors, had it running fine on new ECU.  Still not really understanding why it cracked pistons last time. Got to tuners, and while checking timing, noticed +-10deg of timing scatter while revving. Changed CAS, and it was rock solid. While not definitive, can't imagine seeing 20+ psi with that amount of scatter would be a good thing. Also glad I found something.   Bit more of a run down; Carried out a stock rebuild, a set of stock pistons, out of a spare bottom end. Everything stock apart from head studs and oil restrictors. (so I can pretend I didn't let the Nissan out, ha.) Armed with the measuring gear and FSM, set about doing overhaul. Oil restrictors as per oil control thread for a RB25, stock oil pump, drifting. Head drain/vent from rear of head, to passenger side of sump above oil level. Two dash 10 vent lines from drivers side of sump (unused atm) Hi octane style cam cover breather kit Splash covers over last 2 cam caps. Both breather lines from cam covers to vented to atmosphere catch can, not plumbed back into sump (wanted to see what it was actually breathing). Got it run in (did about a 1000km) no to low boost scenario, As I had questions over old ECU setup. Installed haltech +sensors for flex Retune on E85 (finding CAS Issue along the way), made 300rwkw at 20psi, out of wastegate. Did a drift day the next day (yes, it was a big weekend!) and was checking catch can throughout the day, ZERO blowby. I mean nothing. Lines from cam covers are not even wet. Done a bunch of street driving, spirited and catch can is still dry. Early days I guess, but pretty happy so far. Also now run 10w60, up from the 10w40 that I used to run. Oil pressure is significantly better, especially when hot (as you would expect)      
    • Thanks buddy. I thought it was a server storage thing. 🤣
    • Perfect! Thanks for this, both look like great options!
×
×
  • Create New...