Comp LSR rectangle cams, opinions?
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Launching!
Joined: Nov 2010
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Comp LSR rectangle cams, opinions? Does anyone here have any experience with the Comp LSR Rectangle Port cams? There are 3 that seem to fit my catagory of "hot street, limited strip" car". I want to be able to hold my own, but not to the point where its kicking and suring bad / being annoying when I'm in the parking lot and similar situations.
As with many, with all the voices and choices its hard to finalize the combo. How do they measure up again the popular XE-R Lobes?
I was looking at these three cams for my car:
Comp LSr Rectangle Cams
269LRR HR13 ADV 269/285* @.050"219/235* .607 .621 113° 1500-6700RPM
277LRR HR13 ADV 277/293* @.050"227/243* .614 .624 113° 1900-7000RPM
281LRR HR13 ADV 281/297* @.050"231/247* .617 .624 113° 2000-7000RPM
This is all for a 2006 GTO 6.0 M6. Cam will go in along with TEA stg1 CNCed LS3 heads, LS3 manifold/LS3 injectors, 1 7/8" LT headers, CAI inc intake, 160* thermostate yada yada....
Thanks guys, I appreciate your opinions
As with many, with all the voices and choices its hard to finalize the combo. How do they measure up again the popular XE-R Lobes?
I was looking at these three cams for my car:
Comp LSr Rectangle Cams
269LRR HR13 ADV 269/285* @.050"219/235* .607 .621 113° 1500-6700RPM
277LRR HR13 ADV 277/293* @.050"227/243* .614 .624 113° 1900-7000RPM
281LRR HR13 ADV 281/297* @.050"231/247* .617 .624 113° 2000-7000RPM
This is all for a 2006 GTO 6.0 M6. Cam will go in along with TEA stg1 CNCed LS3 heads, LS3 manifold/LS3 injectors, 1 7/8" LT headers, CAI inc intake, 160* thermostate yada yada....
Thanks guys, I appreciate your opinions
LS3 heads are very sensitive to cam timing and don't like a lot of overlap. A cam that has shown to work really well with those heads is a 231/235 from comp cams on lsl lobes. You could order it directly from comp or I'm sure one of the vendors to the right---> could help you out.
281/285* @.050" 231/235* .617 .624 114+2
Ask for lobe# 13018 and 13019 on a 114+2
281/285* @.050" 231/235* .617 .624 114+2
Ask for lobe# 13018 and 13019 on a 114+2
Teching In
Joined: Aug 2010
Posts: 1
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Does anyone here have any experience with the Comp LSR Rectangle Port cams? There are 3 that seem to fit my catagory of "hot street, limited strip" car". I want to be able to hold my own, but not to the point where its kicking and suring bad / being annoying when I'm in the parking lot and similar situations.
As with many, with all the voices and choices its hard to finalize the combo. How do they measure up again the popular XE-R Lobes?
I was looking at these three cams for my car:
Comp LSr Rectangle Cams
269LRR HR13 ADV 269/285* @.050"219/235* .607 .621 113° 1500-6700RPM
277LRR HR13 ADV 277/293* @.050"227/243* .614 .624 113° 1900-7000RPM
281LRR HR13 ADV 281/297* @.050"231/247* .617 .624 113° 2000-7000RPM
This is all for a 2006 GTO 6.0 M6. Cam will go in along with TEA stg1 CNCed LS3 heads, LS3 manifold/LS3 injectors, 1 7/8" LT headers, CAI inc intake, 160* thermostate yada yada....
Thanks guys, I appreciate your opinions
As with many, with all the voices and choices its hard to finalize the combo. How do they measure up again the popular XE-R Lobes?
I was looking at these three cams for my car:
Comp LSr Rectangle Cams
269LRR HR13 ADV 269/285* @.050"219/235* .607 .621 113° 1500-6700RPM
277LRR HR13 ADV 277/293* @.050"227/243* .614 .624 113° 1900-7000RPM
281LRR HR13 ADV 281/297* @.050"231/247* .617 .624 113° 2000-7000RPM
This is all for a 2006 GTO 6.0 M6. Cam will go in along with TEA stg1 CNCed LS3 heads, LS3 manifold/LS3 injectors, 1 7/8" LT headers, CAI inc intake, 160* thermostate yada yada....
Thanks guys, I appreciate your opinions
One of my buddys has the 277Lrr, it made 470ish hp with 430ish torque starting at 4000 to 7000, it had some low speed drivabilty issues as well as in six gear.
My other buddy has the 281Lrr it makes about the same power but has bad drivabilty at low speeds, "I beleave he said under 2000rpm" however its not tuned correctly, I beleave drivabilty and perfromance could improve, it really shines at the track, we were at the track last week and it ran a best of 12.27
It really all depends on how your going to use the car, if you want great torque in the rpm range that you spend most of you time in "on the street" you won't regreat the 269Lrr
If your going to spend a lot of time at the track and in the higher rpm range the other two will work great.
Good luck, hope this helps it was the toughest choice I had to make.
Regards Htown
TECH Fanatic
Joined: Aug 2005
Posts: 1,691
Likes: 1
From: Sunny London, UK
Ive got the 2nd in your list. Very flat tq in a 440...
Over 500ftlb from start of pull through to redline with a peak over 600ftlb
BHP doesnt drop off it pulls right to redline (6500).. well a very slight decline.
That was running 0.60bsfc (ie) Ultra Rich, so I think there is another 5% in there with a decent tune.
Oh thats also with WCCH CNC LS7 heads..
Over 500ftlb from start of pull through to redline with a peak over 600ftlb
BHP doesnt drop off it pulls right to redline (6500).. well a very slight decline.
That was running 0.60bsfc (ie) Ultra Rich, so I think there is another 5% in there with a decent tune.
Oh thats also with WCCH CNC LS7 heads..
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Teching In
Joined: Nov 2010
Posts: 29
Likes: 0
From: California
I just spoke with a comp rep on the phone. He said the 269 was a great street cam. It has power in all the right places if you want to drive the car around town and terrorize the place. After spending a great deal of time giving him all my specs, that's what he came up with. Ill be buying one as well.
FWIW: Those cams would work much better in LS7 heads than L92/LS3 heads. Even though they are both rectangular intake port heads the cam requirements are different for each.
Just my $.02
Just my $.02
Last edited by WKMCD; Jan 17, 2011 at 05:09 PM.
Does anyone here have any experience with the Comp LSR Rectangle Port cams? There are 3 that seem to fit my catagory of "hot street, limited strip" car". I want to be able to hold my own, but not to the point where its kicking and suring bad / being annoying when I'm in the parking lot and similar situations.
As with many, with all the voices and choices its hard to finalize the combo. How do they measure up again the popular XE-R Lobes?
I was looking at these three cams for my car:
Comp LSr Rectangle Cams
269LRR HR13 ADV 269/285* @.050"219/235* .607 .621 113° 1500-6700RPM
277LRR HR13 ADV 277/293* @.050"227/243* .614 .624 113° 1900-7000RPM
281LRR HR13 ADV 281/297* @.050"231/247* .617 .624 113° 2000-7000RPM
This is all for a 2006 GTO 6.0 M6. Cam will go in along with TEA stg1 CNCed LS3 heads, LS3 manifold/LS3 injectors, 1 7/8" LT headers, CAI inc intake, 160* thermostate yada yada....
Thanks guys, I appreciate your opinions
As with many, with all the voices and choices its hard to finalize the combo. How do they measure up again the popular XE-R Lobes?
I was looking at these three cams for my car:
Comp LSr Rectangle Cams
269LRR HR13 ADV 269/285* @.050"219/235* .607 .621 113° 1500-6700RPM
277LRR HR13 ADV 277/293* @.050"227/243* .614 .624 113° 1900-7000RPM
281LRR HR13 ADV 281/297* @.050"231/247* .617 .624 113° 2000-7000RPM
This is all for a 2006 GTO 6.0 M6. Cam will go in along with TEA stg1 CNCed LS3 heads, LS3 manifold/LS3 injectors, 1 7/8" LT headers, CAI inc intake, 160* thermostate yada yada....
Thanks guys, I appreciate your opinions
Christian
Hot Rod tested four cams on a 6.0 with LS3/L92 heads, I thought it was a good article. Well, except for the last two pages that are missing. At least it has all of the dyno charts!
http://www.hotrod.com/techarticles/e...est/index.html
http://www.hotrod.com/techarticles/e...est/index.html
I see a LOT of happy LS3/L92 cam owners in the 220-4 intake range and the 228-234 exhaust range. LOTS of them. I see lots of other threads with some bigger cams that they brag up are going to make big numbers and then magically they stop posting....
Lobes also seem happy with EPS, LSL, and not so much XER but the odd one here and there
All I can say for certain is am I ever pleased that I ordered a PatG custom grind EPS cam. Its installed now... numbers coming soon
Lobes also seem happy with EPS, LSL, and not so much XER but the odd one here and there
All I can say for certain is am I ever pleased that I ordered a PatG custom grind EPS cam. Its installed now... numbers coming soon
I see a LOT of happy LS3/L92 cam owners in the 220-4 intake range and the 228-234 exhaust range. LOTS of them. I see lots of other threads with some bigger cams that they brag up are going to make big numbers and then magically they stop posting....
Lobes also seem happy with EPS, LSL, and not so much XER but the odd one here and there
Lobes also seem happy with EPS, LSL, and not so much XER but the odd one here and there
I'd bet on the second cam, that you could cut the exhaust duration to 235* and only loose a few HP, most of it being above 6500, while gaining better low end drivability.
Hot Rod tested four cams on a 6.0 with LS3/L92 heads, I thought it was a good article. Well, except for the last two pages that are missing. At least it has all of the dyno charts!
http://www.hotrod.com/techarticles/e...est/index.html
http://www.hotrod.com/techarticles/e...est/index.html
One thing that intrigued me is the flat torque tables that all the cams Hot Rod did versus all the high rpm spiking tables that gmhtp did?
http://hotrod.automotive.com/115281/...est/index.html
