Cam Choice?

[booba32]

What type of cam is suitable to put in my r32gtr with -9 turbos?

[Ben C34]

For an rb26 will fit

[Matvei27]

For an rb26 will fit

Pick something Tomei. We don't know anything about your car though so it's hard to say which ones.

[booba32]

Has -9 turbos, adjustable cam gears, r34 dumps, trust front pipes

im going bigger injectors,fuel pump,fuel rail and either haltech or microtech ecu

[Matvei27]

That's not very specific. You haven't told us how much power this car is making and how you intend to use it.

[75coupe]

What colour is it?

[booba32]

Car is making 240rwkw, i dont know how much it will make with those improvements

it will be a weekender, wouldnt mind doing some track days, the car is fluro pink with eye candy door banners

[GTR_JOEY]

Lol... Yea waste ya money on tomei cams

Spend the money on an oil coil or drive train/exhaust/brake Improvements. You will actually notice the difference that way

[Piggaz]

Stock cams and get them dialled in!

Spend the money on a front diff.

[Piggaz]

Pick something Tomei. We don't know anything about your car though so it's hard to say which ones.

Is that because what you've seen everyone else choosing the same or because it's in a catalogue?

[Matvei27]

Is that because what you've seen everyone else choosing the same or because it's in a catalogue?

No, it's because it made a worthwhile difference on my car.

Certainly worth the $700 USD they cost WITH the adjustable cam gears.

[breaker1845]

Keep stock cams and dial them in properly and profit from not buying shafts and spend it on something better.

Also out of those two ecu options I'd pick Haltech.

Edited April 26, 2015 by breaker1845

[GTR_JOEY]

No, it's because it made a worthwhile difference on my car.

Certainly worth the $700 USD they cost WITH the adjustable cam gears.

I assure you the cam gears made up for what ever those piece of crap cams lost you

[booba32]

When would you need to drop different cams in?

Looks like il be dialing them in then, also can r34 gtr brembos bolt straight onto the 32gtr?

[Piggaz]

When would you need to drop different cams in?

Looks like il be dialing them in then, also can r34

gtr brembos bolt straight onto the 32gtr?

R34 brakes have a bigger bolts than the earlier models.

[HarrisRacing]

I can't believe that there aren't gains available from larger cams...call me crazy, but here are the factory specs:

BNR32 RB26DETT Solid

Intake duration 240°

Exhaust duration 236°

Intake lift 8.58

Exhaust lift 8.28

Preset valve timing INTAKE 113°

Preset valve timing EXHAUST 125°

And here are some Tomei "drop-in" examples:

Type A

Intake duration 260

Exhaust duration 252

Intake lift 9.15

Exhaust lift 9.15

Type B

Intake duration 260 (same intake as type A)

Exhaust duration 260

Intake lift 9.15

Exhaust lift 9.15

* Type A
Designed to best suit the stock & N1 turbos for optimum performance balance of low to mid range torque.
The Exhaust cams duration was reduced to maintain best idling.
* Type B
By extending the duration timing compared to the Type A Poncams, both response and peak power was raised and these camshafts best compliment the mid to large size turbo charged applications.

How can one say that they won't make more horsepower with more duaration and lift? surely this is a myth?! Perhaps the gains aren't there with some turbo / valvetrain setups, but I assure you there will be a powerband difference between STOCK, A and B in nothing more than lift alone.

Now, does everyone have the mods to support the flow / overlap? Who knows.

My experience with streetcars with turbos and cams, stay on the small side of duration. I chose Poncam A's for my 2.75L stroker motor with ported head, +0.5mm SS valves, retainers, springs, etc. Just wanted a touch more duration and lift than factory. I won't be able to tell you what they do different, but then again, I'm pretty extreme on setup with BW 8374EFR turbo and all.

Edited April 26, 2015 by HarrisRacing

[r32-25t]

Change the cams when you change the capacity of the engine or you are going for a hell of a lot more power then the -9 will ever make

R34 brembos can be made to fit you just need to drill out the holes on the r32 front hub so that the bolts fit thru

[r32-25t]

You are right there will be a power band difference it all move to the left and causes the car to drive worse then it needs to for the power they give, the other issue with all these "drop in" cams is they never have enough lift for the increased duration, which causes them to lower dynamic compression even more then a properly designed cam shaft

We have made the mistakes of using all these parts and know first hand what their benefits/flaws are, a lot of people get caught up in the fact they fitted these pieces of junk and made 5-10kw but forget they lost 20kw out of the bottom end of the rev range where you spend most of your time actually driving the car

[niZmO_Man]

R34 brembos can be made to fit you just need to drill out the holes on the r32 front hub so that the bolts fit thru

Alternatively, you can put helicoils in and use 12x1.5mm/R33 Brembo bolts.

[r32-25t]

Alternatively, you can put helicoils in and use 12x1.5mm/R33 Brembo bolts.

just goes to show there is always more then one way to skin a cat