LS9 cam not good with turbos???
07-17-2012, 07:48 PM
#1
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LS9 cam not good with turbos??? Seems I have heard more negative reviews with the LS9 cam and turbos. I am looking for something for my 5.3 that will have good low to mid range torque and pull like hell up top. Would the GT2-3 be a better option or TU1?
Or should I just go with a LS6 cam and be done.
Which of these would most likely produce more torque out of boost?
Or should I just go with a LS6 cam and be done.
Which of these would most likely produce more torque out of boost?
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07-18-2012, 04:29 PM
#9
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Horrible cam... I have like NO TRACTION anymore! Damn!
So bad, Lingenfelter discontinued one of their cams.
"This is the GM factory 2009-2012 LS9 ZR1 camshaft that works excellent in many supercharged or turbocharged applications. The LS9 camshaft is 211/230 @.050 valve lift and .558/.552 lift with 1.7 rockers and a 122.5 centerline.
Before the LS9 was introduced LPE used the GT7 camshaft that John Lingenfelter designed in 2001 to be the perfect camshaft for boosted LSx applications. The GT7 was 208/230 @.050 valve lift and .554/.546 and 121 center line this camshaft produced excellent power and still had great street driveablity. In 2009 GM introduced the LS9 in the C6 ZR1 supercharged Corvette engine. After comparing specifications on the camshaft and finding out how economical this is due to it being mass produced Lingenfelter discontinued the GT7 and started using the LS9 in supercharged or turbocharged applications.
The LS9 camshaft is a 3 bolt design and will use the Lingenfelter 3 bolt cam conversion kit if you are installing it in a single bolt application like the 2007 – 2010 LS2 or LS3. If you are installing it in an earlier LS1 or LS6 engine with the cam sensor at the back of the engine you will need a 2005 LS2 front cover, 2005 1x cam sprocket, camshaft extension harness, 2005 LS2 chain dampner."
http://www.lingenfelter.com/mm5/merc...w=&range_high=
So bad, Lingenfelter discontinued one of their cams.
"This is the GM factory 2009-2012 LS9 ZR1 camshaft that works excellent in many supercharged or turbocharged applications. The LS9 camshaft is 211/230 @.050 valve lift and .558/.552 lift with 1.7 rockers and a 122.5 centerline.
Before the LS9 was introduced LPE used the GT7 camshaft that John Lingenfelter designed in 2001 to be the perfect camshaft for boosted LSx applications. The GT7 was 208/230 @.050 valve lift and .554/.546 and 121 center line this camshaft produced excellent power and still had great street driveablity. In 2009 GM introduced the LS9 in the C6 ZR1 supercharged Corvette engine. After comparing specifications on the camshaft and finding out how economical this is due to it being mass produced Lingenfelter discontinued the GT7 and started using the LS9 in supercharged or turbocharged applications.
The LS9 camshaft is a 3 bolt design and will use the Lingenfelter 3 bolt cam conversion kit if you are installing it in a single bolt application like the 2007 – 2010 LS2 or LS3. If you are installing it in an earlier LS1 or LS6 engine with the cam sensor at the back of the engine you will need a 2005 LS2 front cover, 2005 1x cam sprocket, camshaft extension harness, 2005 LS2 chain dampner."
http://www.lingenfelter.com/mm5/merc...w=&range_high=
Last edited by HRHohio; 07-18-2012 at 04:35 PM. Reason: Added Lingenfelter info
07-18-2012, 05:54 PM
#11
TECH Resident
It is a good budget turbo cam... you won't be upset... easilly 50 hp more than a stock cam will get you, overall.
Don't get me wrong... if you were doing competitive racing, you might think about having someone professionally spec a cam for your exact setup. But for what it sounds like you're shooting for, great cam.
Don't get me wrong... if you were doing competitive racing, you might think about having someone professionally spec a cam for your exact setup. But for what it sounds like you're shooting for, great cam.
07-18-2012, 10:27 PM
#14
TECH Resident
Better than the LS6.
Here are some Cam Specs:
LS6 Cam (’01): 204/211 @ 0.050; 0.525/0.525; 116 LSA
LS6 Cam (’02+): 204/218 @ 0.050; 0.555/0.551; 117.5 LSA
LS9 Cam ---->: 211/230 @ 0.050; 0.562/0.558; 122.5 LSA
Interestingly the LS7 Cam is VERY similar to the LS9 Cam but has a tighter LSA and a little more lift:
LS7 Cam---->: 211/230 @ 0.050; 0.591/0.591; 120.5
I'm thinking that the tighter LSA on the LS7 cam will help with the low end (not in boost) torque and be a bit more aggressive down low.
http://www.chevyhiperformance.com/te...n/viewall.html
Just my thoughts...
Note: The GT7 camshaft by Lingenfelter had a 121 LSA, but a little less lift.
.
Here are some Cam Specs:
LS6 Cam (’01): 204/211 @ 0.050; 0.525/0.525; 116 LSA
LS6 Cam (’02+): 204/218 @ 0.050; 0.555/0.551; 117.5 LSA
LS9 Cam ---->: 211/230 @ 0.050; 0.562/0.558; 122.5 LSA
Interestingly the LS7 Cam is VERY similar to the LS9 Cam but has a tighter LSA and a little more lift:
LS7 Cam---->: 211/230 @ 0.050; 0.591/0.591; 120.5
I'm thinking that the tighter LSA on the LS7 cam will help with the low end (not in boost) torque and be a bit more aggressive down low.
http://www.chevyhiperformance.com/te...n/viewall.html
Just my thoughts...
Note: The GT7 camshaft by Lingenfelter had a 121 LSA, but a little less lift.
.
07-19-2012, 11:09 AM
#18
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Its a good boost cam period for the money. Its got a stock sounding idle though. If you want a small cam with a Pro-Charger just do like a 224 cam or something.
