Thanks for the help, mang!

I wish I could see some performance differences between the two, but it appears that very few have tested the K280s and the S3s. The S3 appears to be a better cam than the K280 in terms of maintaining down low power and still unleashing up top.

 

I was blown away when I switched from Comp 280's to the s3's. There was VERY little difference in spool up and HUGE gains out the top with less boost. Very impressive.

 

I went with S3s.

Thanks for the help, mang.

 

Glad you went with the S3's. I picked up huge power from going from kelford 272 to GSC S3

 

Kelfords do not have as aggressive a ramp rate as GSC products. The other option would be R2s which I have recieved 2 sets for Evo 8s but they have already been installed for testing. One set is going to Dubai and the other was just dyno'd on a 2.0L with a 3794. They made 75whp over Kelford 272s on a STOCK cylinder head no less.

 

Gah, the R2s were the ones I wanted but I didn't think they would be available in time!!

 

Bob,

The R2s showing up were a surprise actually. I wasnt planning on seeing any until November

Per the car-

I should qualify the statement a little I guess. Stock port head with 1mm over valves. This amounts to about dick really and therefore is more or less a stock head. I will get the dyno sheets up later. They did lose down low vs the Kelfords but there are 2 reasons I think this happened.

1- AMS VSR intake manifold

2- Stock head

What we found with Andrew's motor going from S2s to R2s it picked up globally so I dont think its a case of cams are so huge it lost, its combination differences. Throwing a Magnus on the car will make a difference I feel. Comparing the car in question to an S2/Magnus car it was definitely spooling later as it was and the R2s just compounded it.

Funny how that works when things are all engineered to work together and then remove one key piece.

Aaron

 

I definitely see how that makes sense. It's crazy how parts all work off of each other, and like you said, when one part is removed/added, the whole dynamic of the combo is thrown off.

 

Awesome feedback in this thread about these cams! Definitely is interesting to see how a certain combo of parts works well over others, great stuff!

 

Based upon your sig it looks like you have a 9 turbo and stock manifold. That setup will have a very high exhaust backpressure with a 2.4L and you might do yourself more harm than good going to a bigger cam with more duration. The cams you have now would probably be best for your setup. The 280's and cams with alot of duration will make much better power on cars with larger turbines, turbine housings and manifolds with more runner volume to prevent reversion at valve overlap.

 

O2 dump goes A LONG way in helping this combo work. Bigger is better but you can get away with alot before it really hurts you.

 

That's all temporary, mang, although I hear what you're saying. Quite a few people run the S3s on the small turbo to help pick up where the turbo falls off.

The EM has been honed out to its max by Curt Brown so it also flows a ton more than your average stocker.

I understand how it all works, however, I'm installing a ported head, a bigger IM, an HLA, and wanted to do the S3s so I don't have anything else to upgrade but a turbo in the future ......and so I can make the IX turbo scream for the time being .

And, as JB said below, the dump helps a lot too.

 

Were you finally able to receive more cores? Are these the same as the ones on mine?

-Acree

 

Just curious but what turbo do you have in mind for the future?

 

The sky is the limit. I'm graduating from college this year, so I won't be upgrading until that happens.

Ideally I would love to do the ETS TS T3 Kit with a 3586, however, I may choose to stay stock frame and go with a DBB Red.

Honestly I can't say for sure as I know I'll change my mind, and by then, there will most likely be other options out there.

I would just like a turbo that will compliment the rest of my setup.