R34 Gtr Build

[bigmikespec]

Wow that is a full on turbocharger Bobby I just realised...76mm inducer and 102mm exducer that should be nearing a four figure hp output.

[NYTSKY]

Not with the rear housing he has chosen, more for response.

[bigmikespec]

Yes true... but that is a big comp wheel

[Roy]

Not with the rear housing he has chosen, more for response.

Be interesting...he has loads of gate an interesting manifold design.

[BOBBYr34]

Wow that is a full on turbocharger Bobby I just realised...76mm inducer and 102mm exducer that should be nearing a four figure hp output.

It's a 68.5mm inducer and a 102mm exducer trim 44 this comp wheel is for high pressure ratio I'd like people to copy this theory. Currently modifying a hks turbo for a friend I'll post some results I won't say for now what I'm doing to it once done I'll let people know a nice mod for hks Kai

[bigmikespec]

The compressor side is less sensitive to A/R changes than the turbine, what you got cooking Bobby? Better performance at higher boost levels...

[BOBBYr34]

The compressor side is less sensitive to A/R changes than the turbine, what you got cooking Bobby? Better performance at higher boost levels...

With this combo the turbo can be at a high pressure ratio with low volume to minimize surge

[BOBBYr34]

Finally got some pics on the motor been built see pics below

[BOBBYr34]

[BOBBYr34]

[BOBBYr34]

[BOBBYr34]

[BOBBYr34]

[BOBBYr34]

[BOBBYr34]

[GTRNUR]

Seriously thick walled wrist pins you've got there! They look to be at least 1-1.5 mm thicker than a standard pin.

I would have thought you would be using titanium rods too for the deck height you are running as well with this engine.

Is that a GT500 2.8lt crank?

Also, whats with the banjo fittings on the back of the head? External oil supply, rather than through a block restrictor?

[bigmikespec]

Bobby, are the photos that you had of the head showing the water/air reliefs still on this thread? If not, can you post them up again please?

Looks great, like the red is that a anti-oil friction coating or it just looks cool?

[BOBBYr34]

Seriously thick walled wrist pins you've got there! They look to be at least 1-1.5 mm thicker than a standard pin.

I would have thought you would be using titanium rods too for the deck height you are running as well with this engine.

Is that a GT500 2.8lt crank?

Also, whats with the banjo fittings on the back of the head? External oil supply, rather than through a block restrictor?

Hi Ian,

John wanted the thickest wrist pin.

The rods are crower and this should be fine, and wont stretch.

Banjo fitting are the external oil supply that we can control how much we want in the head. Trevor the motor builder has said he wants to see more then std in the head.

Yes the crank is a Gt500 2.8L

[BOBBYr34]

Bobby, are the photos that you had of the head showing the water/air reliefs still on this thread? If not, can you post them up again please?

Looks great, like the red is that a anti-oil friction coating or it just looks cool?

http://www.skylinesaustralia.com/forums/topic/355547-r34-gtr-build/page__st__360

Yes that red is the Anti oil friction coating

[r33_racer]

Like the external oil feeds bobby. Those banjo's wont foul on the back firewall?