are the kelfords 272 b etter than the m2

 

Is boost taper a side effect of being internally gated? Is there a way to hold boost up top such as an external gate and would it be beneficial to actually hold boost to redline(more power)?

 

I would be inclined to say yes.

It very well could, but the form of EBC can also make a difference. AEM uses a fixed WG duty cycle which I like, but means its more like an MBC really.

 

I'm definitely going to look into the new S2s now. Thanks for the testing and information Aaron!

 

thanks Aaron!

but believe me you don't want me anywhere near your shop there would be a continuous supply of alcohol and loose women

 

I like many have been waiting to see how the two produce on the same setup. Thank you for you time and great work.

 

Doesnt sound like a mon-thurs visit, friday then?

 

^werd! Sorry I missed you today, Aaron as there might have been some of the latter if not the former! I really thought you were going to call before you left the muddy banks.

I'm on the list for S2's me-self! A little post-holiday present to my car, if you will!

 

Aaron, this is a copy of the cam card that came with the S2 Mivec cams I recently purchased a few days ago. Can you tell me if they are the tweaked versions?

 

everyday except sunday. sunday is to rest and get ready to do it again on Monday

 

I'm not sure the lift numbers are correct Aaron we made a 278/274 11.2/11.0 for a run of 10-20. The S2 cams have been revised over 10 times sense we brought them out in 06 and 3 times in the last 12months. at current the 274 11.2/11 with the 226/230 @1mm lift is the current number and with the use of E85 or Even the 10% Ethanol mix most gas stations have will be better for the stock frame turbo's.

 

Very cool comparison!

 

My bad thanks for clarifying that Greg.

 

So, I guess I did get the latest S2 cams, as these specs matched my camcard a few posts back..... that Aaron never responded to. Thanks Greg!!

 

Nope they are the latest version but not the version that was in the Red car that was posted apparently. Centerline changes and obviously the overall duration of the intake cam have been altered. I went back through my engine simulation where I also keep track of everyones motors that we have personally built and compare my sim to real life.

It quite clearly lists the lift much as Greg had posted at 11.2/11. I think him and I had talked about an S2 that might have had an S3 in the woodpile and this is where I got confused. To be clear I was holding off on responding if in fact I had totally barked up a wrong tree. Greg clarified the point for us before I could respond.