Jump to content
SAU Community

Recommended Posts

G day people I have a 98 gtt only owned it 2 months so I know nothing about these things starts fine idles fine but when I put the hammer down any where from 3500 to 5000 the power will drop out completely.. I thought it blew up .. But still is running... If I drive around just normally it's ok will only drop out when it feels like it have changed the fuel filter thought I might ask before I take it to the shop .. Standard intercooler and turbo 3 inch exhaust k&n air filter cheers

Link to comment
https://www.sau.com.au/forums/topic/457364-gtt-r34-engine-miss/
Share on other sites

Hmmmm... I don't think anyone has ever tried anything other than oem coilpacks.

You know modification of r34's never really took off so I don't think there would be very strong aftermarket support for these cars.

Same on why there isn't much info about squeezing power out of them on the net.

great stuff. it's good practice to gap your plugs down to 0.8mm as well. Fresh coil packs should be firing no problem but reducing the gap makes it a bit easier on the ignition system.

you can buy pregapped plugs - BKR6E or BCPR6ES. Don't get the ones with -11 suffix, those are 1.1mm gap (and unfortunately more common). The ones without the suffix are 0.8mm.

you can put platinums/iridiums in if you get a good price but copper plugs are cheap and although you have to change them a bit more often it's good to have a look at them now and then (spark plugs tell a story about how your engine is running.. rich? lean? detonating? you'll see it on the plugs).

  • Like 1

Say what?!

if they have -11 at the end then all you have to do is gap them down to 0.8.

If they are the same heat range as what is required then it makes zero difference!

I have gotten spark plugs that were meant to be gapped at 0.8 but were all over the shop, 0.7 - 1.0 on a batch of six

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

    • Boot is going to be replaced eventually. I just wire brushed what I could and rust converted. Then painted in rust kill primer. the spoiler also got repainted and plugs replaced on the ends. The under side of the bonnet is going to be black also, currently white. But red on the top side, same colour code as the silo to begin.
    • Hi guys, has anyone either purchased or built themselves a rotisserie for their car before? I can only just justify the need for one hence why I should just make one but at the same time, if I make one I can kiss another 4 weeks of potentially productive car working time goodbye because I'm building a bloody rotisserie....  I mainly want it for the application of the body deadener.  Cleaning the old stuff off, priming and then colour over the deadener doesn't worry me, it's just the application using the Schutz Gun that I feel would achieve a significantly better finish painting it side on and keeping the Schutz Gun upright.  I don't think they would work well on the side let alone almost upside down for some areas.  If the product I use (Terosun, etc) could work through a HVLP ok then it might be ok to apply without the rotisserie.   I can get one of these style ones for about $1200 which is pretty good value-     I reckon if I made one it would cost around $500 but it's more the time that it would take is more of a killer than the cost.  They look to hold their value pretty well second hand so I could always sell it after using it and realistically only lose $200-$300 at worst.  Or keep it and buy another project when this one finally sees the light of day... Anyone selling one...? Cheers!  
    • While it is a very nice idea to put card style AFMs into the charge pipe (post intercooler, obviously), the position of the AFM and the recirc valve relative to each other starts to become something that you really have to consider. The situation: The stock AFM is located upstream the turbo, and the recirc valve return is located between the AFM and the turbo inlet, aimed at the turbo inlet, so that it flows away from and not through the AFM. Thus, once metered air is not metered again, neither flowing forwards, or backwards, when vented out of the charge pipe. When you put the AFM between the turbo outlet and the TB, there is a volume of pressurised charge pipe upstream of the AFM and there is a volume of pressurised pipe downstream of the AFM. When the recirc valve opens and vents the charge pipe, air is going to flow from both ends of the charge pipe towards the recirc valve. If the recirc valve is in the stock location, then the section between it and the TB doesn't really matter here - you're not going to try to put the AFM in that piece of pipe. But the AFM will likely be somewhere between the intercooler and the recirc valve, So the entire charge pipe volume from that position (upstream of the AFM, back through the intercooler, to the turbo outlet) is going to flow through the AFM, get registered as combustion air, cause the ECU to fuel for it, but get dumped out of the recirc valve and you will end up with a typical BOV related rich spike. So ideally you want to put the AFM as close to the TB as possible (so, just upstream of the crossover pipe, assuming that the stock crossover is still in use, or, just before the TB if an FFP is being used) and locate the recirc valve at the turbo outlet. Recirc valve at the turbo outlet is the new normal for things like EFRs anyway. In the even of a recirc valve opening dumping all the air in the charge pipe, pretty much all of it is going to go backwards, from the TB to the recirc valve near the turbo outlet. But only a small portion of it (that between the TB and the AFM) will pass through the AFM, and it will pass through going backwards. The card style AFMs are somewhat more immune to reading flow that passes through them in reverse than older AFMs are, so you should absolutely minimise the rich pulse behaviour associated with the unavoidable outcome of having both a recirc valve and an AFM in the charge pipe.
    • Yep, in my case as soon as I started hearing weird noises I backed off the tension until it sounded normal again. Delicate balance between enough tension to avoid that cold start slip and too much damaging things.
×
×
  • Create New...