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R33 series 2 problem

SIR33

By SIR33,
in Engines & Forced Induction

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SIR33 Collaborator

SIR33

Posted
Posted

hey i have a strange hesitation when accelerating. it accelerates to about 3800/4000rpm then really struggles (big lack of power) then once it gets to 5000/5200rpm it kicks hard again at full boost. any ideas?? please!

only mods are turbo back exhaust, k and n pod and turbo smart bov. no boost controllers.

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https://www.sau.com.au/forums/topic/33599-r33-series-2-problem/
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Neil Grand Master

Neil

Posted
Posted

Lets do this by trail and error. Yes Just make sure they are gapped to .8mm. 1.1mm is great for modded cars but you have much the same as I had.

Yes try cleaning the air-flow meter with brake cleaner. Take it easy on the trigger,,,just a mist spray. Some say they are self cleaning but that is just not true.

Next get rid of that stupid bov and go back to the factory one. On standard boost the factory one is more than capable.

It can't be coils because they only ever fail at higher rpm.

If all this doesn't fix it you need to start talking to a Mechanic.

Neil.

JimX Grand Master

JimX

Posted
Posted

Neil, I thought 1.1 was good for standard cars but 0.8 for modded? :confused: Also, the factory bov is more than capable, but so is the turbo smart one. So why bother wasting time and effort pulling something off that already works properly?

Boj Newbie

Boj

Posted
Posted

Sir33-I had a similar issue but my car struggled from 4000rpm onwards, I changed spark plugs and gapped them to .8 but it didn't fix my problem.I then took it to a workshop and they fixed it.The guy on the counter said that it was my spark plugs and that the mechanic re-gapped them.I tried to find out at what gap he set them but the mechanic wasn't around.Car is going unreal now.

Neil Grand Master

Neil

Posted
Posted
  JimX said:
Neil, I thought 1.1 was good for standard cars but 0.8 for modded? :confused: Also, the factory bov is more than capable, but so is the turbo smart one. So why bother wasting time and effort pulling something off that already works properly?

Jimx sorry,,,Yes I got it around the wrong way. 1.1 for stock and .8 for the big boost boys. The reason I want him to go back to the factory bov is to see what happens. Maybe the Turbo-smart one he's using is faulty, Wouldn't be the 1st time a product straight out of the box was stuffed.

Neil.

Boj Newbie

Boj

Posted
Posted
  hooligan said:
boj, where u get this done?

i have the same prob.. same mods but hks ssqv.

i was told best to get a  aftermarket ecu like power fc or safc and it'll fix the prob.

Hooligan-I went and saw the guys at JustJap at Kirrawee.Worth getting it checked out before you splurge some money on something that might not fix your problem.

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