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All rebuilt...runnin in...finally get a few k's on er and give it a bit.

Doesn't really splutter, more of a hesitation

Feels like it wants to go, but mellow's out.

Goin at 0.6 bar steady..so I don't think its leaking.

I have a nisdat..timings ok, oxygen and af sensors seem fine.

It doesn't seem to retard as though the knock sensors are kicking in.

New battery, newly flowed infectors, new plugs...like I said it doesn't splutter like a lack of fuel or spark.

At a guess its electrical...any thoughts

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Mine feels exactly the same.. Basically no notisable problems just no power..

Id get it on the dyno and see how much power shes putting down and check the af's.. PM me if you find the problem .. :spank:

  ricknismo said:
All rebuilt...runnin in...finally get a few k's on er and give it a bit.

Doesn't really splutter, more of a hesitation

Feels like it wants to go, but mellow's out.

Goin at 0.6 bar steady..so I don't think its leaking.

I have a nisdat..timings ok, oxygen and af sensors seem fine.

It doesn't seem to retard as though the knock sensors are kicking in.

New battery, newly flowed infectors, new plugs...like I said it doesn't splutter like a lack of fuel or spark.

At a guess its electrical...any thoughts

yeah about 600..but I still would have thought as revs pickup power would too.

Another strange thing...my boost controller doesn't work now...but electrically does.

Something is cutting, I'm sure of it..fuel,boost??

Weekend will reveal I hope. Got a new fuel pump happenin and another gtr to swap stuff.

If I'm game, i'll free boost it in 3rd and take my foot off as soon as it goes over 0.7 as it only does 0.6 now.

sounds like boost leak or boost control issue, are all inlet hose fitted correctly??

very easy to miss a hose!! i have recently fitted a brand new engine to gtr and

tight will very little effect on boost achievable.

i also doubt fuel is issue.

it really does sound like leak or control issue, maybe turbo actuators partially open.

also check that you blo off valves are not leaking.

cheers russell

  cameron said:
Has the engine been run in properly?

 

I wouldn't be reving upto 6k inless you have done atleast 1,000k's.... Before then you should be reving to 3k.

Lots and lots and lots of theorys on how to run an engine in...

But yeah, Id say how all your little hoses are hooked up, just if stuff was working before, and isnt now, its more than likey going to be something small that would be easy missed. Such as forgetting to put a piston in, thats big stuff, it just wouldnt happen. Putting a little hose on the wrong nipple, thats easy as to miss.

  cameron said:
Has the engine been run in properly?

 

I wouldn't be reving upto 6k inless you have done atleast 1,000k's.... Before then you should be reving to 3k.

thats a myth

My car, bedded in on the dyno, and been runnning 16psi ever since, 7800rpm limiter no probs

nearly 6000km's and i have no problems. car runs fine, makes the same power as it did from day one.

  R31Nismoid said:
thats a myth

My car, bedded in on the dyno, and been runnning 16psi ever since, 7800rpm limiter no probs

nearly 6000km's and i have no problems. car runs fine, makes the same power as it did from day one.

Didn't you have a turbo problem :cheers:

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