CAM specs/flow numbers

[coppertop_01]

Looking to build a header, but todo the math for primary dimensions and lengths I need to know the flow number on the head and the exhuast cams durations and lift.............anybody know where to get it?

Jer

Answered my own question

Cam specs, if a mod wants to sticky this

ECOtec CAMSHAFT INFO SHEET
This sheet provides basic information regarding production camshafts used in the ECOtec engines listed
below. This information is accurate as of November, 2006. GM reserves the right to change
specifications and part numbers without notice.

Engine (usage) L61 (Saturn ION & VUE; Chevy Cobalt & HHR, Pontiac G5)
Displacement 2.2L
Bore x Stroke 86 x 94.6mm
CR:1 10.0
Fuel SFI
Induction Naturally aspirated
Hp @ rpm 148 @ 5600
Tq @ rpm 152 @ 4200

Engine (usage) LE5 (Saturn ION & Sky, Chevy Cobalt SS & HHR, Pontiac G5
GT, G6, & Solstice)
Displacement 2.4L
Bore x Stroke 86 x 98mm
CR:1 10.4
Fuel SFI
Induction Naturally aspirated
Hp @ rpm 173 @ 6200
Tq @ rpm 163 @ 4800

Engine (usage) LSJ (Saturn ION Redline, Chevy Cobalt SS SC)
Displacement 2.0L
Bore x Stroke 86 x 86mm
CR:1 9.5
Fuel SFI
Induction Supercharged
Hp @ rpm 205 @ 5600
Tq @ rpm 200 @ 4400

Engine (usage) LNF (Pontiac Solstice GXP, Saturn Sky Redline)
Displacement 2.0L
Bore x Stroke 86 x 86mm
CR:1 9.2
Fuel DI
Induction Turbocharged
Hp @ rpm 260 @ 5300
Tq @ rpm 260 @ 2500

Production ECOtec Camshaft Specifications:

INTAKE Cam Valve Valve Duration Valve area
Part Peak Lift Peak Lift Timing @1mm lash @1mm lash
12587985 - LSJ 5.9557 10.03790354 100 196.50 1117.70
12590699 - L61 5.9804 10.07953361 116 198.40 1112.90
12578511 - LE5 6.2551 10.54252068 135 210.30 1253.30
12589335 - LNF 6.111207 10.29999939 126 203.60 1171.30

EXHAUST Cam Valve Valve Duration Valve area
Part Peak Lift Peak Lift Timing @1mm lash @1mm lash
12584363 - LSJ 5.9543 10.04392819 -115 191.70 1076.40
12590700 - L61 5.9752 10.07918306 -108 193.30 1078.00
12578512 - LE5 5.95143 10.03908697 -125 195.40 1092.70
12589340 - LNF 6.106106 10.30000003 -120 194.00 1106.00

Just need some flow numbers on the LSJ heads now

Jer

[Paulumbo]

Good deal-I've seen that info before.
When getting flow numbers, don't forget to see how "real world" they are. In NA applications I've always gotten my flow numbers from flowing the head with intake and carb or throttlebody in place as it would be in the car. Then I do the same on the exhaust side-typically using some baseline piece to start with-manifold or reputable header. Just some food for thought-attaining flow numbers can be deceiving sometimes. Good work on chasing down the specs-I think it's worthy of a sticky, but I'm not a mod in this section

[bc3tech]

stuck!

[Area47]

poke around css.net to find the flow numbers on the head. i believe jmc did them