torlak_t

Hello guys i was recommended this cam, springs and pushroads? is anyone running this combination or what do you think about them in general? also can anybody explain me what plus 2 advance means?
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Cam recommendation: (5.7L F-body stealth cam with stock heads heads, A4 with stock converter, future supercharger, long tube headers)
218/224 .605/.600” 115LSA +2 advance
Comp Cams XFI/XFI lobes
3014R/3035R HR115LSA +2 advance (113 installed intake centerline)

Cam Valve Events 0.006 0.050 0.200
Intake Duration - ID 268 218 143 3014 XFI lobe .605"
Exhaust Duration - ED 276 224 147 3035 XFI lobe .600"
Lobe Center Angle - LSA 115 115 115
Intake Centerline - ICL 113 113 113

Intake Valve opens - IVO 21 -4 -41.5 BTDC (- indicates ATDC)
Intake Valve closes - IVC 67 42 4.5 ABDC
Exhaust Valve Opens - EVO 75 49 10.5 BBDC
Exhaust Valve Closes - EVC 21 -5 -43.5 ATDC (- indicates BTDC)
Exhaust Centerline - ECL 117 117 117
Overlap 42 -9 -85 degrees

• Static/Dynamic Compression with 66.67cc head .054” gasket: 10.30:1/ 8.03:1
• Recommended springs: Patriot Gold Dual valve springs.
• Recommended pushrod length: 7.450” assuming stock heads and stock head gasket.

YankeeVert.

I just installed that cam in my C5. I used the XE-R lobe on the exhaust and the cam has a +3 advance.I installed PP Stage II heads along with it.The car idles like stock at 600 rpm and pulls strong all the way to 6500rpm.I have a SS3600 TC and the car pulls strong from any gear. I have the TC locking up at 32 mph and I have no surging/bucking even at 1200/1400 rpm. I am running 11.1 CR and I am sure that helps a lot.No dyno numbers but I did pick up 6 mph in trap speed(113 vs 119).

torlak_t

what is this "advance" thing? for example urs have 3, the one they recommend me has 2 advance.

YankeeVert.

Advance is the difference between the intake centerline (ICL) and the lobe seperation angle (LSA). When you advance the cam you move the point the intake valve closes.Closing the valve sooner will lower the rpm that peak power occurs at.Most off the self cams have a 4* advance. This is to make sure that the power peaks at a usable rpm.

torlak_t

anyone else??

torlak_t

ttt...

torlak_t

come on guys, please write down, if you know anything about this cam?

Patrick G

iTrader: (14)

The recommended cam advance (+2) was based on you running a supercharger in the future. The 113 intake centerline will keep your overlap centered over TDC and allow you to make balanced power down low and up high. Basically, the amount of advance puts the cam timing exactly where the motor needs it.

torlak_t

how much hp do you think i will gain?

Patrick G

iTrader: (14)

40-45 additional RWHP over what you're making now. On a manual trans, the gains would be slightly higher.