jdn902

i know i've read/heard the lsj exhaust cam is a good upgrade in the 2.2 but....can't remember if it was the l61 or lap engines. or if it was year specific.
my car is an 06, anybody have any info

JapEatr

iTrader: (9)

You will need to block off the last bearing as the lsj cams are shorter.

Also the 2.2 has more lift than lsj cams i believe

mrbelvedere

iTrader: (3)

you got it backwards the 2.2 l61 has the short exhaust the lsj uses 2 l61 intake cams for intake and exhaust

jdn902

alright answer my question enough to hold off until i build the motor down the road and get better cams haha.

Axelthered05

iTrader: (9)

this is incorect also check the gm build book the cams for the lsj and l61 are not the same for both lift and duration, the LSJ intake cam will fit into the L61 however the LSJ exhaust cam will have to be shortened before it will fit into the L61 cylinderhead

mrbelvedere

iTrader: (3)

you wanna bet

the lsj intake and exhaust cams are ground from l61 intake blanks my2006

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) Displace- ment
Bore x Stroke
CR:1 Fuel Induction Hp @ rpm
Tq @ rpm
L61 (Saturn ION & VUE; Chevy Cobalt & HHR, Pontiac G5)
2.2L 86 x 94.6mm 10.0 SFI Naturally aspirated
148 @ 5600
152 @ 4200
LE5 (Saturn ION & Sky, Chevy Cobalt SS & HHR, Pontiac G5 GT, G6, & Solstice)
2.4L 86 x 98mm 10.4 SFI Naturally aspirated
173 @ 6200
163 @ 4800
LSJ (Saturn ION Redline, Chevy Cobalt SS SC)
2.0L 86 x 86mm 9.5 SFI Supercharged 205 @ 5600
200 @ 4400
LNF (Pontiac Solstice GXP, Saturn Sky Redline)
2.0L 86 x 86mm 9.2 DI Turbocharged 260 @ 5300 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 - ’07 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 - ’07 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

Notes regarding camshaft interchangeability: The L61 (2.2L ECOtec) camshaft changed from the 2006MY to 2007MY. This change was to go to a less aggressive cam profile with less noise, less jerk, less impact load, and better valve dynamics.
The 2007MY L61 intake cam cannot interchange with any other production ECOtec cam.
The 2007MY L61 exhaust cam is interchangeable backwards into the ‘06 L61 and with the LSJ exhaust cam.
The 2006MY L61 cams can interchange with LSJ cams, both intake and exhaust. These cams are the exact same profile, only at different timings.
The 2006MY L61 timings are 116 intake, -103 exhaust. The LSJ timings are 100 intake, -115 exhaust.
The LNF and LE5 exhaust cams could interchange. The LNF and LE5 cams are not interchangeable in any other way or with any other ECOtec cams.
Valve springs are the same across all variants, and should be upgraded for high-rpm operation or increased lift.

The GM Performance Parts ECOtec cam set (88958648 set or 88958636/7 individually) is an aggressive race cam. They are not stock-replacement cams; they require upgraded valve springs and retainers. These cams were designed for a race motor, using the ‘06 L61 as the starting point. The cams will not fit the 2.4L LE5 head and will not work with the stock ECM or lifters. They physically fit the 2.0L LSJ head,

2.0L LSJ

 Intake and exhaust cams are the same casting as each other. 
Both cams have a pressed-in hex. The hex on the exhaust cam drives a cam location sensor.  Compatible with GM Performance Parts adjustable cam gears. 
Cannot be replaced by the GM Performance Parts cam set.

This cam casting. . . . . . . . . . .also fits here (refers to fit only, does not refer to operable cam profile)

GMPP Adj Cam gears L61 and LSJ
GMPP Intake, cast L61 Intake thru ‟06 , LSJ Intake
GMPP Exhaust, cast L61 Exhaust
GMPP Intake blank, cast LSJ Intake, L61 Intake thru „06
GMPP Exhaust blank, cast L61 Exhaust
Comp Cams Intake, billet LSJ Intake, LSJ Exhaust, L61 Intake thru „06
Comp Cams Exhaust, billet L61 Exhaust
L61 Intake thru‟06 LSJ Intake
L61 Exhaust thru‟06 none
07&later L61 Intake none
„07&later L61 Exhaust L61 Exhaust thru „06
LSJ Intake L61 Intake thru „06
LSJ Exhaust L61 Intake thru ‟06, can be cut (shortened) to fit L61 Exhaust
LE5 Intake none
LE5 Exhaust LNF Exhaust
LNF Intake none
LNF Exhaust LE5 Exhaust

Axelthered05

iTrader: (9)

all im seeing from that is that the blanks are the same I will see if i can find the specs for the cams

Axelthered05

iTrader: (9)

this is from the GM SPORT COMPACT Performance Build Book page 84 the cams are machined to different specs you can hardly say they are the same
Intake Cam Peak Lift
L61 5.9804 mm
LSJ 5.9557 mm
Intake Valve Timing
L61 116°
LSJ 100°
Intake Duration @1mm lash
L61 198.4°
LSJ 196.5°
Exhaust Cam Peak Lift
L61 5.9752 mm
LSJ 5.9543 mm
Exhaust Valve Timing
L61 -108°
LSJ -115°
Exhaust Duration @1mm lash
L61 193.3°
LSJ 191.7°

mrbelvedere

iTrader: (3)

exactly pumpkin pants the lsj uses l61 intake blank for the int/exh

and I am right once again

Axelthered05

iTrader: (9)

no you said the cams are the same. you did not say the cam blanks are the same which is the case here. two blanks that are machined to different specs cannot be considered the same cam and that's all I'm trying to say

jdn902

so am i reading that the lsj exhaust cam can interchange with my 06. length is good timing is different as is duration?
i was wanting to do it when i put my sc kit on

Axelthered05

iTrader: (9)

if its 05-06 L61 you need to trim it down im not sure about the 2007 L61

mrbelvedere

iTrader: (3)

I don't care about the specs and never referd to them the lsj cams are made out of the l61 int cam blanks

so again I am right

Axelthered05

iTrader: (9)

who cares if your right what your saying is misleading and im not trying to attack you or anything, you said something that although vaguely correct can be miss interpreted by someone who does not know the cams have different specs, the way you said it would lead any unknowing individual to believe they can go to the junk yard and get 2 L61 intake cams and use them as LSJ cams which is not the case. do you understand what I'm saying, I'm not saying the cams are made from different blanks I'm just saying the cam specs are very different and one cannot expect to use 2 L61 intake cams and expect the performance of Cams that are of LSJ spec and thats how the way you stated it made it sound. and I want it to be clear for anyone who want to try LSJ cam in the L61 to know they are different so this is not about you being right or wrong this is about representing the information in a more clear and acurate way

mrbelvedere

iTrader: (3)

a blank is a camshaft