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My R34 GT Skyline Build


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#601
Ten Four

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Call Andrew and ask???

#602
Hanaldo

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Yeh I did, he said he would have to put it on the dyno to check :confused:

#603
Tiddy

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how bout a catch can?
When you run higher boost than standard misted oil gets dragged into the inlet tract, the catch can removes the oil. The oil can reduce the octane level of the fuel and can lead to detonation.
might be worthwhile for you.
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#604
Hanaldo

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Yeh I have a catch can, haven't been able to find hose for it. Found some on the weekend, it should be here any day. But I've never heard of blow-by giving you terrible fuel efficiency, it would have to be pretty bad...

#605
Tiddy

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if u want fuel efficiency then put ur old motor back in!
You can use high pressure vacuum hose, half inch :)
Looks sorta original, wont stand out too much
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#606
Hanaldo

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Lol the old motor only got 300kms a tank, wasn't efficient at all. I'm not hating on my car because of the fuel efficiency, I still love it. It's just disappointing that I only have 243rwhp and there are plenty of people out there getting way better fuel efficiency than me with much more power

#607
Ten Four

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You keep saying 243rwhp, thats on high boost!

You could get andrew to retune high boost at 12psi? (At a discount of course..!)

#608
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Even worse :( lol

High boost doesn't really matter, I don't use it.

#609
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Have your O2 sensor tested as well. This can cause poor fuel economy.

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#610
Hanaldo

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Yeh I was thinking that, I just thought it would be strange seeing that it was brand new and fine before it went in to Hyperdrive...

#611
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Did KYP install the one from the front cut, or did they keep the original one in? They may have swapped it out.

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#612
Hanaldo

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Nah they used a brand new one, all the major service things like water pump, timing belt, o2 sensor, etc. is all brand new.

#613
Hanaldo

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Right, well in an effort to distract myself from my shock, I have decided I am going to get my turbo timer working tomorrow. Nothing to take your mind off things like messing with a cars ignition system.

#614
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13.5 is a bit high for a nylon turbo dude. I wouldn't push one past 12.

Reminds me of when you said to me to not push my RB20's stock turbo past 14psi but she cranked to 16 - 18psi all day long with copping a floging. Just a fluke i guess.

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#615
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#616
Hanaldo

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Haha yeh Brett, there isn't really a magic number where the turbo all of a sudden goes bang... We pushed my mates stock RB20 turbo to 32psi and it didn't blow. They just don't like the excessive heat, so if you drive around all day at that boost level then it going to get weaker and weaker and then eventually give up.

There also just really isn't much point pushing them past a certain point, the gains you get are negligible as the turbo just can't flow that much air. So you could see a 30hp gain from 8psi to 12psi, but then only see a 2hp gain from 14psi to 20psi.

#617
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Reminds me of when you said to me to not push my RB20's stock turbo past 14psi but she cranked to 16 - 18psi all day long with copping a floging. Just a fluke i guess.

Exactly that - a fluke.

Nylon wheels don't take shit like ceramics though.

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#618
Hanaldo

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Nylon wheel is the compressor wheel, turbine is ceramic.

#619
Tiddy

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Titanium FTW
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#620
Hanaldo

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What turbos use titanium!?