Ceramic Turbos And Fcd

[GTScotT]

Are you tired of waiting for your stock ceramic wheeled turbo to die?

Do you want that peice of ceramic wheel in you cat now?

tired of seeing other peoples engine failure threads and want one yourself?

need an excuse for a turbo upgrade?

or just plain love destroying things?

if you answered yes to any of the above then you need 8 1n4004 diodes and a boost tap.

so how do you it you ask?

simple, install the boost tap, then for the diodes

if you strip back the wiring on the afm, you will notice 4 wires( series 1 r33 gtst and r32 gtst)

there colours are Black,black/silver,White,black/white

what you do is conect the diodes anode to cathode in series then the anode end of the chain goes to the black wire on the afm plug, and the cathode end goes to the white wire.

this will stop the ecu going into RnR mode,

now to kill the turbo, increading boost past 1.3 bar (r32 with stock r33 turbo) will still cut badly as the fuel system will be more than maxxed out, this will definatly kill the turbo and motor.

however, if you put the boost to 1.2 bar, with a fresh pump and working fuel pressure reg, this will max out the injectors and give you air fuel ratios of about 16:1 up high in the rev range, so no rich and retard, just lots of boost, not much fuel and a fair ammount of pinging.

Perfect recipy for a dead motor and tubo, all for the cost of 80c worth of diodes and some lecy tape, as most of you will already have a boost tap.

will be trying a rising rate reg and higher fuel pressure to see if i can work around the stupidly high air fuel ratios. this rb20 hates me...yet it what it deserves for burning a valve before i got it,

i am in no way responsible for any damage you do to your car following these instructions.

this is a cheap way to get around the rich and retard cut of exciding the max air flow limit set by the ecu, with a stock fuel pump and reg ect it is very dangerous as i have pointed out and will, not might, yet will kill your motor, this is ment for people who know the risks and have increased fuel pressure or somethign to compensate for the extra boost.

[R31Nismoid]

16:1 in the top end?

Are you honestly serious or just really REALLY stupid?

Awards for thread of the year should include this

[GTScotT]

16:1 in the top end?

Are you honestly serious or just really REALLY stupid?

Awards for thread of the year should include this

bit of both, only hit that once, lol, for like a few seconds if that, fixing it now. i wouldnt run it at that kind of setting

[paulr33]

there's a secret mode that nissan built into the std ecu to enable a secret hidden power mode in the ecu

its only valid for 26secs and 33milliseconds each time you enable so make sure your on race track when you try it

when you start the car put the left indicator on, then the right, then hold down demister button for 30 seconds

the ecu detects this secret combination and the engine light will flash - this indicates the special mode is on

the japs know about this hack and they use it in their 300km/h runs down the tunnels in tokyo

you will notice the duration of the secret mode represents the nissan GTR engine capacity and the more dominant skyline model, the R33 skyline

this is by no means a conincedence and it was a secret mode developed by one of the nissan tech's who was later made redundant, but his secret was still built into the ecu

[DRD-00F]

Oooohhh... is this secret in the PFCs too?

Nice write up Scott

[rb26s13]

[GTScotT]

ok a quick update.

do not increase base fuel pressure as the ecu learns around this very quickly,i ran 75 psi for the base pressure and within 5 min the car was running normaly again with stupid high af's at high boost,yet the first few min were awesome until it adjusted.

the only way i can see to safely get the required fuel up top, although yet to try, is with a 2:1 or 3:1 rising rate reg, and possibly a tap on the reg to let it start increasing fuel pressue above 5 psi so any closed loop cell isnt effected so the ecu wont learn to adjust to the new fuel pressure

[GTScotT]

hmm giving up so will just retune my ecu when i put the rb30 in,

everytime u fix an issue there is a new problem, for instance, rising rate reg to get more fuel ended up working when leaving the base pressure alone, however iginition timing is to advanced for boost that high and pining wont stop even with more fuel and the fmic and the engine not overheating, only fix for that is retard the timing heaps, that makes you lose power everywhere else

cheap massive boost mission : Epic Fail