Jump to content
SAU Community

Recommended Posts

Hi guy's im new to this site, I have had a search but can't really find an answer to my problem.

So I got myself an r33 series 1 sedan, manual turbo.

I got it with a missfire on boost.

I have fitted new spitfire coil packs and tried different igniter and cas.

I have even replaced the cas plug as the wiring at the plug were exposed.

I took it into a tuner as the miss was still present, they checked over everything and said there is a earth missing at the rear of the intake.

I started stripping back the wiring to find the wire but thought I would check on another series 1 and see which direcrion the wire comes from.

I only checked 1 other car and it did not have the earth there either but series 2 do.

Mods are 550cc injectors, z32 afm, hypergear atr43, front mout and turbo back exhaust.

Was ran by a dr drift remap but I have fitted a brand new power fc due to a change in tuners.

The tuner told me he had the exact same miss with this earth missing but do series 1 have it?

what? so if the tuner knows what earth is missing why can't they just fix it? Normally the head f**k with issues is finding them, so what's the problem here?

Edited by superben

It has a miss/popping on boost.

I have replaced the coilpacks and tried a good cas and igniter.

All with no change to this issue.

Basically from 4500rpm on it misses but feels strange as soon as it starts making boost 3400ish rpm.

Strange as in it feels like it has more pull before it starts to make boost like it is pulling a ton of timing.

Im new to skylines so this issue has me scratching my head.

Does anyone have a series 1 in the west suburbs of melb that I could look at?

  On 19/05/2013 at 11:10 AM, Charles89 said:

Is it a copper earth strap that gets bolted onto the intake manifold heat shield?

Hey, im interested in this too being an s1 owner.

I'm not sure about an intake manifold heat shield though, pics??

Joshman, i bought my car about a year ago and it already had an earthing kit on there so keep us informed please, :yes:

Nah I got it cheap because it had this issue and I thought it would be an easy fix haha.

It has bcpr7es in it which are factory gaped to .8mm.

The problem started since the intake manifold was removed and refitted so I will rip the intake off again this weekend to make sure it is sealed.

The vacuum was good but it has gone a bit crap lately.

Was 20inhg now its around 12-15inhg.

  On 22/05/2013 at 11:11 AM, JoshMan said:

Nah I got it cheap because it had this issue and I thought it would be an easy fix haha.

It has bcpr7es in it which are factory gaped to .8mm.

The problem started since the intake manifold was removed and refitted so I will rip the intake off again this weekend to make sure it is sealed.

The vacuum was good but it has gone a bit crap lately.

Was 20inhg now its around 12-15inhg.

So you bought it with an existing issue that started once the inlet manifold was removed, and rather than check that straight away you create a vague thread about the issue.... Seriously dude, why start the thread, check the f**king inlet manifold like you thought was the problem all along.

I started the thread to find out if this earth at the rear of the intake manifold should be there, which from what I have seen is only on series 2.

If vacuum is good and you can't find a leak would yiu remove the intake manifold on an rb25?

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

    • I'm hoping I just don't have to do an engine rebuild NOW. Doesn't mean I won't do it at some point. I think a plus point is that the car presumably ran on or close to stock power nearly all it's life so far. Only the Owner I bought it from actually increased power with a standalone ECU and blew the OEM turbos. And after it got thee 2860s it wasn't driven an awful lot either.   That is what I meant. With the twins coming on so late (4500-5000rpm) I hope the rods won't want to exit the block prematurely. And it still being a 26 means the torque curve isn't gonna hike up all that much.   It didn't blow up on the dyno when they tuned it to 500ish crank. So I suppose it'll be okay for now. They did put a Tomei head gasket on first though which did not seal at all, and they redid it with a Cometic one. Which I hope won't be my water leak.   Mainly anything oil. So far all it has is the N1 pump, oil restrictor and a filter relocation kit with a cooler.
    • 15000? ish? Something like that anyway. It wasn;t so much a wear as a tear that then spread. Might have lasted a lot longer if not bothered by just one incident, whatever it was. I took a punt. They are really comfortable and do a good job of holding. My daughter HATED it when I first put them in, and probably still does now. She has sensory issues and hates the way they are all up your business. I'm 197cm and 95kg. Not fat or particularly wide, and the XL size seat is the rigth fit. If I was any fatter it would start to get too snug. Any skinnier and you'd possibly want the smaller width.
    • Mrs rs focus came factory with recaro cs  sportsters in it and they a pain in the ass to get in and out of with the really high bolsters, once you were in them they were one of the most comfortable seats I have ever sat in
    • The NA 2.5 has very little torque. You won't feel much. Those trannies are also a million years old now and it could well be f**ked. First generation electronically controlled autos will often refuse to kick down, ete, etc, depending on what's wrong with them.
    • Yes, but no but yes but no. Those "it's fine up to 500HP" rules and everything else like it were all determined back when the cars were 10 years old. As they are now 30 years old.....what do you reckon the chances of something shitting the bed are? I'd say they are much higher now than they used to be. You might be lucky. You might be unlucky. Spin the wheel and find out. Yeah, nah. It's actually exactly the opposite. Making boost early and having heaps of torque able to be generated right in the middle of the rev range will do more to damage an engine than having to rev it high to make the power. Think about the load on the conrods, bearings, etc, to make 400HP at 4000 rpm, vs 400 HP at 6500 rpm. So someone has already "let the Nissan out" which is how we describe the increased chance of a fiddled with engine to have had something done wrongly. Many more engines that have been opened die than stock ones do - even if you into consideration how they are treated wrt power levels and the like. Again, not saying that yours will definitely have been put back together by a moron. But the possibility does exist. It's still a lottery. Spin the wheel. What weakspots?
×
×
  • Create New...