[YOSLVR442]

are the SVT cams any different from the stock cougar 2.5 cams??
If so, should i buy them??
thanks

 

[DanG]

Yes, and maybe. The SVT cams are a "hotter" grind than the stock Duratecs. More duration, specifically. They're good through till 7000RPMs and slightly beyond before the max out- The stock cams are good until 6250 before they fall off significantly in very short order.

However, the SVT cams don't respond as well to F/I as the stock cams do. If you have no other mods but simple bolt-ons, then if you can get a set, go for it. I would also recommend the SVT ECU in that case (the computer that's mapped for the hotter cam), but that forces you to go to premium fuel. Only with both will you realize any significant gain in power.

 

[Kinger]

Originally posted by: DanGHowever, the SVT cams don't respond as well to F/I as the stock cams do.

Mmm I have yet to see ANY FI cougar or non-SVT contour with FI out do a SVT engine set up the same. SF also found that with the lower compression, less overlap of the non-svt cams that they should have been able to pull out more power but it wasn't the case. Project cougar made 280+FWHP on race fuel before the stock clutch blew but I wouldn't count that as a everyday tune set-up. IMO SVT cams are a rare breed that work well in ANY situation.

Not worth it for a 2.5 as a upgrade alone, but if your doing a engine build then try to source some.

 

[DanG]

:ugh: Hmmm... Good to know? The info I had came from bnoon & buckshot77 over at CEG a while back. Maybe they've gotten better/more info since then...

 

[sonza68]

Originally posted by: DanG
The stock cams are good until 6250 before they fall off significantly in very short order.

I wouldn't say they fall off significantly after 6250. At least on the dynos of my car, hp peaked at about 6400 and I was making as much power at 7000 as I was at 6000.

 

[eurocrisp]

Originally posted by: sonza68

Originally posted by: DanG
The stock cams are good until 6250 before they fall off significantly in very short order.

I wouldn't say they fall off significantly after 6250. At least on the dynos of my car, hp peaked at about 6400 and I was making as much power at 7000 as I was at 6000.

hitting that part of the band, where its producing the same power from 6000-7000Rpm's feels like a fall off to the driver