I've been searching for about an hour without any definitive numbers.. So, what are the gains exactly for 280, 272, and 264 cams with minor bolt ons?

 

It all depends on the tune. And there really isn't much difference between all three while running the stock turbo. Once you go with a bigger turbo, then the 272 & 280's will get you some better numbers than the 264's.

I like the 264's because you don't need to get cam gears and there is virtually no difference in the idle compared to the stock cams.

 

You dont need camgears for any good cams... assuming they are close to the correct 'degree' from the factory. The only real reason you would NEED the cam gears is for a cam that needs to be degreed badly.

On low HP and stock rev limit you wont see any gains really. They will hold the power longer but it moves the power band much higher... so if your powerband is currently say from 4k to 6k aggressive cams could move it to 5k+... but if your turbo still produces power much lower and drops off up high it is pointless... you open the car up to more air in an area that the turbo isnt pushing efficiently anyways.

 

I run 272's on stock cam gears, stock turbo, and a flash. I kind of want 280's now. I started with 264/272s.

 

Yes, adding cams moves the power band higher, but saying it won't provide any gains... come on.

Look at the Buschur Stage 2 and Stage 3 numbers. Stage3 adds a FMIC and 264 cams.

320whp 329wtq for Stage2
348whp 329wtq for Stage3

Are you saying Buschur gained 28whp with just the intercooler? Doubtful.

 

I guess I worded it wrong... you wont see any power increase overall... you lose a whole bunch at the bottom and gain some up high. Think about it... the IC & piping gives 10 and cams gave 18... the IC didnt lose any power so the only power loss down low would be from cams. You need to look at alot more than peak power On top of that... if I do 4 pulls in 4 days... my HP will flucuate around 15-20hp. So what parts accounts for those gains/losses

 

wow so we're looking at 20 whp for cams?

I was thinking like somewhere in the 40!

 

TrinaBabe... huh?

Not only will cams allow you to rev higher, they also increase power. Moral of the store = get cams!

 

Yah, you worded wrong. Good cover...

It is apparent that the cams lose power down low. Lets also look at the track times...

12.42@111 - stock cams (Stage2)
12.09@115 - add 264 cams and FMIC (Stage3)

Bottom line, cams help despite the gains on the top end only. GET CAMS!!!

 

I got HKS 264's and i love them! Definately get cams!

 

My best friend Sergio(Evofunk) just had his car dynoed and gained 31WHP with Cams and LICP.

This was done at Precision Dyno. This is the thread:

https://www.evolutionm.net/forums/sh...d.php?t=167223

Definately you need cams. By the way, I gained 1.5-2mph higher steady tra speed on the 1/4 mile by just adding the Buschur Upper IC pipe and the AMS Lower IC pipe.

The one thing though is that his cams 264/272 sometimes gives him some erratic iddle issues(rpm fluctuations), something that the 264/264 would not give you.

I have 264/264 and the response is nuts. The car has absolutely no boost lag at all.
When I go from a roll at 50MPH I punch it in 4th gear, never in 3rd, I do the same in 5th gear at 70MPH instead of third gear..

 

thanks for the quick response guys.. i just bought 272's.. now about the idle issues, will the crappy idle affect driveability (stalls easier, etc)?

 

Drivablility shouldn't be affected by 272's. The idle is lopey, but can be fixed with a good tune. I personally don't mind the idle, but others might.

I've never had any stalling issues with the cams, even b4 I had them tuned, but its a fact that all Evos are not created equal.