Cam Duration And Vacuum Lose Rb26

[NXTIME]

Don't need 280's, Danny. Stick with the ones you have. Will spool better and can easily make 500rwkw. The 280's will make power delivery worse especially for the power you are chasing.

Nothing wrong with a T51R - plenty enough for the power you want.

As mentioned above, its been done plenty of times before.

I agree that you should get a 5 bar map sensor and give it whatever boost it needs to make 500rwkw.

[Piggaz]

^ simple and cheap answer.

Listen to this guy.

Reply back with an extra 4-5 psi and map sensor + tune.

[DannyzGTR]

8.5k -9k max.. Im sayin i wont buy the map sensor, im just asking is worth my gettin bigger cams?? And finding out how much vacuum would i lose? Like i said before doing things once (engine wise) and thats it...

[r32-25t]

The cams would be a waste of money and won't make the difference you're after

[Ben C34]

But how much vacuum lost! That's the big issue......

[GTSBoy]

All of it! Take all of the vacuum out. And what are you left with? NOTHING!

[Piggaz]

Better go to Godfrey's for a vac pump.

[Piggaz]

Racepace can spin to 8000 on stockers, I, personally have spun to over 9000 on 270's without falling over, the went back to aggressive 260's (custom grind and still think they're too big).

I don't understand this huge duration rubbish where you're rpm is sub 10,000 rpm. Unless you like a peaky powerband, you're going backwards!

[NXTIME]

I spin my completely stock RB26 to 8K no problem.

[DannyzGTR]

Charlie we're about to find out if ur old stroker kit is gonna make decent power lol

[Lithium]

Racepace can spin to 8000 on stockers, I, personally have spun to over 9000 on 270's without falling over, the went back to aggressive 260's (custom grind and still think they're too big).

I don't understand this huge duration rubbish where you're rpm is sub 10,000 rpm. Unless you like a peaky powerband, you're going backwards!

Bah, it's not the cams are too big - it's the bottom end is too small

[Piggaz]

Bah, it's not the cams are too big - it's the bottom end is too small

Then it won't rev/accelerate/sound good.... Or something

[Lithium]

[zebra]

Lol

[MJTru]

Funny I'm trying to get the same goal as well. What turbo would you guys recommend for 500 kw. PT.

[MJTru]

After I read all this I want to drop my hks 272 cams for my build.

[MJTru]

A very long time ago I was reading up on cams for a rb series engine. I can remember that most people that used that wasn't happy at all right here on this site. Then ended up swapping therr cams out for the stock set. Some made way more power using the stock ones.

[MJTru]

Here is a shot of all my parts lined off. It's a new head.