Kat's R33 Gtst Project

[savage1987]

wow keen eyes. So keen you picked up the corps even though there's nothing whatsoever in the photos that would tell you that

stalker?

lol

seriously though I'm confused now. also the 270 went wayy over my head.

introductions are in order

[EeLeYe]

so I'm having trouble chasing down the source of a misfire / spark breakdown..

Idles fine

Coasting down in gear misfires

Under part or full throttle misfires at random so hard the R&R must kick in or something because it's like the power just drops away for a moment now and then

I've changed the O2 sensor just behind the turbo, there looks to be another one in the rear of the catalytic convertor but I don't know what the deal is with that..? Is this a common issue?

There's also an earth strap just hanging free from the floorpan right next to the catalytic convertor... where is this supposed to go?

The earth strap in the engine bay from the motor to the strut tower is a piece of shit, I need to replace this because it's rubbish and I'm not happy with it at all.

Other than this issue the car's going alright

The sensor from the cat converter is a temperature sensor. As for the misfire, could be anything, from shit fuel to needing a new coil set. I say take it to a mechanic and get it checked. Might just need some new spark plugs.

When's this game getting released? Can I pre-order?

[oweban]

RB25DET Simulator (in the style of all the other -simulator games)?

[savage1987]

Have already changed the plugs out for new ones, found out at the same time that the coil packs are splitfires that look pretty well brand new.

Really wish mods would move this thread to the correct section of the forum.... I reported it the moment I posted the thread lol. Maybe I'll try reporting it again.

[zebra]

sigh.... as mark said bloody AJs

Wait....Bloody Engineers

Signed

Ex Tanky

Brings back memories of trying to work on my 33 in the carpark at f**kapunyal

[savage1987]

I replaced the shitty factory earth strap from the exhaust manifold to the strut tower with a nice 2GA cable. I also found that the FPR's vacuum/boost line from the inlet manifold had blown itself off so I cranked a couple of cable ties onto it pretty damn tight as a temporary solution.

It seems to have helped a little, it builds power a lot stronger now but still doesn't feel quite right, and the stalling issue has come back stronger than it was before (guessing because the mixture is leaning out properly with the vacuum input adjusting the pressure properly but whatever it is I need to fix it. I read somewhere that the pumps are designed to adjust their voltage at low demand (idle conditions) by means of a switching earth and that this can be circumvented by giving the pump a fixed earth right near the tank. I'll investigate this. Otherwise I'm starting to suspect the pump may need replacing because I'm sure this is a fuelling issue and I don't think it's high enough to be hitting the Nissan ECU's 7.5PSI fuel cut..

Getting somewhere, anyway. It's nice to get a step in the right direction every so often.

[MUZT3K]

Where do I pre-order, plus is there a collectors edition?

[zebra]

I played this game 5 years ago...Always fatal Errored...

Had to re-install the game engine several times

[savage1987]

I've no idea what this is still doing in this section. I should just start a new thread.

The car seems to have become more sensible since I dialled the boost right down so I think Nissan's R&R (or 7.5psi fuel cut or whatever the fk happens in the factory ECU) may have been a contributing factor. I don't know where standard boost sits on the factory gauge, we bought the car like this

I have a new fuel pump to throw in (Walbro GSS342) and I want to find an injector rebuild kit for it as well. I have replaced the filter and all engine bay lines for peace of mind, and I will do the rear lines when the pump goes in.

[zebra]

yeah just start a new thread

[EeLeYe]

Version 2.0 update? What's changed?

Have all known bugs been removed?

[babyskyline]

I dont think so....was playing this game earlier in the week and still some gliches and bugs. You would think they would have been fixed in the 2.0 upgrade but obviously they are have been masked and lower overall performance is never a good thing

[savage1987]

Got the Walbro in today. I set up a new relay right next to the battery with a feed directly from the positive terminal, using the previously existing fuel pump power feed as the signal for the relay. This means the new pump won't be subject to Nissan's fuel pump voltage drop at idle, which can only be a good thing, while retaining the ECU control to switch the pump off in case of an accident. I also gave the pump wiring a nice direct earth so it doesn't have to earth back through the loom.

I'll get some pictures up eventually.

While I was in the tank I removed and cleaned the fuel level sender assembly because I figured I'd be stupid not to do it while I was in there anyway. It's also worth noting that I used the pre-existing Nissan pump filter rather than the new one Walbro supplied because it (the Nissan item) afforded the pickup a little over an inch more reach downward and I didn't want to reduce my useable fuel volume.

[EeLeYe]

Probably a bit late now but generally it's better to use a newer pickup, even if it is a bit shorter. The older ones can be full of crap from dirty fuel over the years.

I had also used the original Nissan pickup and after switching it to the newer one that came with my pump, the priming noise at startup sounded a lot healthier.

Good to see the car is coming along nicely. Best to start a new thread though; in the correct location this time...