Hey guys well i have had the HKS 272/272 combo the Tomei 260 Procam combo and now the HKS 280/280 combo.

I wont go into my finding becouse i dont want to steal the thread. BUt here is a link to another thread of mine that i have made some videos showing the differences in vacuum and idle between these cams. For some reason the way cams are going to idle is a big part of someone's decision when they purchase cams so i figured i would start a thread showing how they sound.

David sorry if you feel i high jacked just thought maybe you would be interested also.

Chris

https://www.evolutionm.net/forums/sh...34#post1666334

 

It will be interesting to see what all of the cronies say about the above statement... Since it seems everyone has been convinced the the sole deciding factor of cam choice is "turbo size". Seems everyone has forgotten how much "other variables" have to do with the big picture.

 

It would be nice if you did test the 264's out being I won't be changing them out once I get the 20G slapped on my car.

 

I know that going with 272's made a great improvement on my car on the stock turbo, and Dave has proven that you can get great results with the 280's on the stock turbo.... I think that you would see a BIGGER gain on a cam swap on a car that already has an upgraded turbo though..... this is where people missunderstand and think that the ONLY time you see a benefit with big cams is if you have an upgraded turbo.

Later,

Keith

 

i would seriously love to find out this is true and i guess i'm just waiting for it to be plopped down on the table with the bottom line and proof or justification to boot.

like... someone sayin'... i've tested this and this... the only downside to cams is idle... this is how you tune out idle probs this is how you tune out overlap probs with cam gears etc. and the boost still comes on the same... the torque is same or better on the entire curve.

i mean is that a whole lot of gaining without any giving up? i'd like to know for sure! cuz why spend the same money on 264 if you can get 280s... aside from lope.... which i'm a fan of. cuz what's the downside of the idle? is it so bad that you stall?

 

The lopping gets annoying. Mine only does it every so often and I can't wait til it stops. I've got the "stock idle" flash from DynoFlash and it works nicely, but every so often it'll cam.

Stalling would get annoying as well. I'd hate to be driving a nice car just to have it stall in a parking lot in front of people and have to restart it again. It's happened to me a couple times. Seems to do it more when I'm in reverse. I'm not stalling it myself so I'm assuming it has something to do with the cams. TO each their own though.

I like having a stock idle so that no one really knows that I have cams, but that's just me.

 

I have dyno sheets posted (search for my user name as thread originator, and the word dyno) showing my car bone stock vs now including 272 HKS cams. For the entire rev range from 2000 RPM up to 8000 RPM I have more power than I had stock.

Keith

 

I like the way this man thinks

 

not to start any real trouble, but a friend gave a call to buschur and someone told him that you guys were scrapping the entire project? could you please shed some light on this? (project as in the 20g)

 

anyone?

 

20G is on hold for a new wheel.

 

The project is not dead. The wheels are still be produced but are going to be cast as they were intended to be in the first place.

David Buschur
www.buschurracing.com

 

any updates as of yet? Still have hope for the 20g.

 

Wouldn't the lag get less and less as the duration of the cams increased. My understanding is the more air you push out thru the ext. manifold the more air hits the compressor wheel, right?

 

The air, exhaust, would actually be hitting the turbine wheel, not the compressor.

Anyway, generally with a larger cam you loose some low end.

David Buschur
www.buschurracing.com