howarmat

40 HP from NSR cams on a N/A car

not going to happen, most cams with springs dont get that many!

SirKnightTG

Hmm, the Comp Camp XFI VSR stage 2 (what brenspeed is calling stage 3) gets 34 (brenspeed got a little more but their test car had a few more bolt ons than the comp test car) ...so I'm pretty skeptical about those hotrod numbers. If that is true then sweet. I would want to see a dyno chart before buying to make sure they don't lose power on the low end. I'm very paranoid about that.

Comp Cams provides three dyno charts for NSR, VSR and SPR. The SPR are the only ones that don't lose on the low and gain 48 high-end. But I'm sure they're the most expensive option.

Right now I'm personally almost completely convinced on getting the SPR. Probably stage 2 since they have a "very rough idle" according to comp and gain more than stage 1 I'd reckon. But I'm not looking to do this anytime soon so it's likely I'll change my mind yet again (seems to be a never ending trend ).

howarmat

I think cost wise they are all about the same from comps site, 742 MSRP, and i think install would be the same basic cost with them all except the NSR cams. I didnt see where it said the SPR dont lose any low end, i did see where stage 1 was gains for torque and stage 2 is focused on the higher RPM HP.

I dont know, I am still completely undecided at this point

jmose77

I know how it sounds howarmat, but don't you worry I'm going to find that SOB tomorrow and slap him and call him a liar.

SirKnightTG

Look here: http://www.compcams.com/3valve/dynoresults.asp

Those dyno graphs show the SPR does not lose any low end, unlike the others. Jim D'Amore also talks about on that page how he did not lose any low end power. He didn't say exactly that he used the SPR, but going by that dyno chart I'd assume he was using the SPRs.

howarmat

I agree those look very nice, i might dig into those a bit further, much more on the install and parts though though....hmmm

jwgroovin

It is confusing, I had to read Comp's updated website from your link to figure it out. My how things are changing.

My Stage IIIs XE261-Hare part number 127300, now a year later called Stage II. I got the Comp springs part number 26113-24 and steel retainers part number 700-24. Hope that helps.

John

jwgroovin

A lot of the gains seen are very dependent on mods, and more specifically, the tune. You have to be careful about tunes because you can tune for max hp/trq and have a quirky car on the street. There are compromises for the street and track.

When I added the cams I went from 300/319 (hp/trq) to 323/309. That's with a C&L cold air kit, BBK shorties, Bassani catted x-pipe, and Mac mufflers already installed. It got me a 12.87 at the track, but the car was just a dog out of the hole, at least at the track. It felt fine on the street compared to othercars.

I came across a real sweet deal on JBA LTs and o/r h-pipe, and installed those and had it retuned recently. I went from 323/309 to my present 348/332. Think about it--had Iput the LTs on the car prior to the cams and new tune, I would have probably seen 30+ HP gain, which is what they are showing on their chart, and note the similar mods. So draw your own conclusions.

For me, the car is more than a handful on the street, and tomorrow I see if I can start working my ETs down towards the magic 12.00 NA...

howarmat

well i think since i already have LTs, CMDP, etc that hopefully any cams i would get will not lose that much down low but who knows.

SONICBOOST3

Hey boss, did you only notice a difference in sound at idle or at crusing or wot speeds as well? Any louder at Wot or Crusin speeds?