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Hello,

I currently own a R33 GTR in relatively stock form but with a 3inch exhaust (turbo back), chipped ECU and Nismo GMax clutch. After a year & a half the performance bug has bitten me and doing an upgrade - HKS GT-SS turbos & dumps, PowerFC, blitz BC, 260° Tomei poncams & cam gears but also the required fuel pump, injector & intercooler upgrade. Now as the radiator hose recently split and resulted in a blow headgasket I'm looking at performing all the work here in Bundaberg (4hrs north of Brisbane).

I was originally going to have all the work done in GC but as they are taking the head off & doing the VRS gasket replacements it would be easier just to install turbos, timing belt, cams & cam gears then. Going to get the head acid bathed & examined too. With a rough road tune I'll drive it to the Gold Coast to get tuned appropriately (no 4wd dynos in Bundy).

I was wondering how much adjusting would be required to the base tune. The injectors would be replaced (444cc to the 700cc Sard injectors) so if anyone has an idea on the correction values for this, that would be great.

Also, I currently have the stock 65mm GTR adapters connected via the HKS metal reducing pipe set to a carbon fibre cold air intake setup. So what I need is some similar 80mm piping from the 80mm Z32 afms to the 80mm pod filters.

Heres the current setup without CF air box:

http://home.austarnet.com.au/myra/filtersmall.jpg

and the HKS kit off:

http://home.austarnet.com.au/myra/hks%20pods.jpg

I was just wondering what the easiest wasy to do this was - have them fabricated or purchase them from somewhere (but I have no idea who would stock them).

Otherwise I guess I could leave standard AFM's until I take it to the Gold Coast - I'm assuming the car will be running fairly rich & shouldnt be hitting the limit as I'll be driving it fairly gently.

Thanks for your help and time,

Geoff

P.S. It will be interesting to see what response and power we can achieve from these turbos.

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These are the parts I'm about to have installed. Does anyone forsee any problems??

- 700cc Sard Injectors

- PowerFC + handcontroller

- Blitz ID3 dual boost controller

- 2 x Z32 AFM’s with plugs

- 2 x GT-SS HKS turbos

- 2 x HKS split dumps

- Tomei Fuel Pump

- 260° Tomei Poncams

- HKS Cam Gears

- Trust 600 x 300 x 115 Intercooler

- Trust Timing Belt

- Cusco Catch Can

Cheers,

Penfold

Ditch the cam gears and put the $ towards bigger cams and valve springs.

When you change cams make sure:

1) It's a big enough difference ie. 272 degrees +

2) You use a matching set of upgraded valve springs.

Otherwise looks like a good combo which should set the 4 doughnuts ablaze :rofl:

For the sake of your sanity, I'd get the car towed to your preferred mechanic and get all the work done at the same time. If there happens to be any problems in the future, you have one party to deal with. You are about to spend a substantial amount of money in modifications, another $4-500 should not be an issue. If it is, hire a tandem trailer and transport the car yourself.

Your list of mods to be performed read spot on. They are pretty much customary these days.

300+ rwkw should not be an issue.

Enjoy.

As for ustasa sying go for somthing big light 272 just letting you know i have both the same cams and same turbo's and i make 290 awkw at only 18 PSI at 8000 RPM with it still pulling like a steam train at 8000.

yes i'm going to raise the limiter to 9000 as we have jun vlave springs and put around 21 psi and see what happens.

As for ustasa sying go for somthing big light 272 just letting you know i have both the same cams and same turbo's and i make 290 awkw at only 18 PSI at 8000 RPM with it still pulling like a steam train at 8000.

yes i'm going to raise the limiter to 9000 as we have jun vlave springs and put around 21 psi and see what happens.

Hey dude, sounds like the car is going good. I was at CAS about a month ago and didn't see your car there so I presumed everything was sweet. :)

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