Jump to content
SAU Community

Recommended Posts

Hey guys took car out for a spin tonight and under full boost I get s spluttering sound and notice that I'm hitting 100% duty cycle around 2/3 of the time ?

Forged rb25det

Gt3582r @ 20 psi

Sard 550cc

Sard FPR (new)

Walbro 255 pump

Z32 afm

Power fc pro

Link to comment
https://www.sau.com.au/forums/topic/358384-spark-issues/
Share on other sites

A 35R should be making a LOT more than 290rwkw @ 20psi. You'd expect around 340rwkw.

Clearly you have issues going on, probably a combination.

I suggest you go back to whoever tuned it and get it on the dyno to diagnose the problems. Could be a number of issues.

Link to comment
https://www.sau.com.au/forums/topic/358384-spark-issues/#findComment-5726227
Share on other sites

Well maybe it's the fact my car was slipping on dyno and I've fitted new clutch on saturday and now it's getting all the power to the ground ? Shouldn't 555cc injectors support 350rwkw like everyone on forum states they can

Link to comment
https://www.sau.com.au/forums/topic/358384-spark-issues/#findComment-5726235
Share on other sites

They will support 330-350rwkw. But who knows whats going on.

You've fitted an aftermarket reg, it could be set wrong.

Fuel pump might be having issues, fuel filter even

As for the power you might have exhaust restrictions, timing could be wrong

Who knows mate. I think there is more to your problem and it's not coil packs at this stage.

Either way you must take it and get it looked at on a dyno, see what the fuel pressure, AFR's, boost etc is all doing.

Link to comment
https://www.sau.com.au/forums/topic/358384-spark-issues/#findComment-5726238
Share on other sites

  On 22/03/2011 at 1:42 PM, R31Nismoid said:

Especially with your threads the past month, certainly issues

I may be barking up the wrong tree here, but does it pain you to talk/type in a friendly/non-threatening tone?

Yes, your posts are very informative, but you almost always talk down to everyone who has less knowledge than you, sorry just pointing it out.

Link to comment
https://www.sau.com.au/forums/topic/358384-spark-issues/#findComment-5726252
Share on other sites

Well no - it's still down on 50rwkw for the boost/setup you have.

So whilst you had bung plug, it doesn't explain the rest. Or why the plug was fouled in the first place.

  On 22/03/2011 at 1:49 PM, turbo x-trail said:

I may be barking up the wrong tree here, but does it pain you to talk/type in a friendly/non-threatening tone?

Yes, your posts are very informative, but you almost always talk down to everyone who has less knowledge than you, sorry just pointing it out.

I was stating a fact - It was totally neutral.

Have a look at his post history. He's had a number of issues with the car of late.

If stating fact is a non friendly tone, well stuffed if i know what your talking about.

Link to comment
https://www.sau.com.au/forums/topic/358384-spark-issues/#findComment-5726270
Share on other sites

  On 22/03/2011 at 1:57 PM, gL3nJaMiN88 said:

And yeh she is running 44 psi is that ok?

That is the factory psi, since it is adjustable you may as well up it a little on your next tune to give your self more headroom and keep it safe.

  On 22/03/2011 at 2:22 PM, gL3nJaMiN88 said:

Yeh well I'm not sure maybe the fact im running a stock exhaust manifold and intake manifold ?

  On 22/03/2011 at 1:42 PM, gL3nJaMiN88 said:

Yeh I have a good exhaust setup 3.5 inch cat back and it's only a new FPR and pump , what fuel pressure is recomended ?

So judging by those 2 comments im assuming that you have factory manifold, dump, front dump and cat?

If so there is your problem, upgrade the dumps and cat first and see how it goes then do the manifold if needed.

Link to comment
https://www.sau.com.au/forums/topic/358384-spark-issues/#findComment-5731451
Share on other sites

  On 22/03/2011 at 1:49 PM, Pork Hunt said:

I may be barking up the wrong tree here, but does it pain you to talk/type in a friendly/non-threatening tone?

Yes, your posts are very informative, but you almost always talk down to everyone who has less knowledge than you, sorry just pointing it out.

I agree with your post 1000% because you are CORRECT 74 thousand posts that would Drive me stoopid also he does not think he talks down to members but he prooves it in his reply to ohwell

ive just wasted another 5 minutes of my time Grrrrrr

Link to comment
https://www.sau.com.au/forums/topic/358384-spark-issues/#findComment-5733194
Share on other sites

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...