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Comp Cams: New LSR Series Cams - 27 new grinds

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Old 11-11-2008, 11:08 PM
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Default Comp Cams: New LSR Series Cams - 27 new grinds

I'm sure those attending SEMA may have seen these or perhaps have more information. Anyway, Comp has released 27 new cam grinds based on custom grinds they have done in the past. They also released a LS series "Thumper" camshaft line. Curious to know what lobes they are using, or maybe it's a new lobe series. They also show the LSR 102mm intake for the LS3/L92 heads and a new set of rockers.

Here's a link to an interview with a Comp rep at SEMA:

http://video.aol.com/video-detail/20...v8tv/442748449
Old 11-18-2008, 04:12 AM
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Anyone got any info on these?

I can't see the Comp Store for some reason

Are these different to the new ThumpR cams?
Old 11-18-2008, 08:04 AM
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The 102mm FAST for L92 motors is going to be a very popular item since the stock L76 manifold is such a pooch!
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Old 11-18-2008, 08:05 AM
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Originally Posted by DrkPhx
They also show the LSR 102mm intake for the LS3/L92 heads and a new set of rockers.

Here's a link to an interview with a Comp rep at SEMA:

http://video.aol.com/video-detail/20...v8tv/442748449
I believe they said it will be available for cathedral ports as well. Should be a cool intake. Put it this way, I'm not going to buy a FAST92 right now until I see what options are available with this intake. Interchangeable runners would be interesting.
Old 11-21-2008, 08:32 AM
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Comp have these cams listed on their website but NO specs


54-455-11 LSR™, 265LR HR12
Very Strong Torque & Excellent Response

54-456-11 LSR™, 269LR HR12
Street Performance, Excellent Torque

54-457-11 LSR™, 273LR HR12
Steady Power Throughout Broad Range.

54-458-11 LSR™, 277LR HR12
Good Street/Strip Camshaft w/ Wide Range

54-459-11 LSR™ Cathedral Port, 281LR HR13
Very Wide Power Range & Excellent Mid-Range

54-460-11 LSR™ Cathedral Port, 285LR HR13
Very Strong from Mid-Range to High End Torque

54-461-11 LSR™ Cathedral Port, 289LR HR14
Broad Top End Power Range for High RPM

54-462-11 LSR™ Cathedral Port, 293LR HR14
Excellent Top End & High RPM Power

54-463-11 LSR™ Cathedral Port, 297LRx HR14
400+c.i., High RPM Range Applications

54-464-11 LSR™ Cathedral Port, 301LRx HR15
420+c.i., High Compression, High RPM

Thumpr™, 275THR7
High Performance Street, Stock, Choppy/Thumping Idle

***** Thumpr™, 283THR7
High Performance Street/Strip, Rough Idle

Big ***** Thumpr™, 291THR7
Street/Strip, Very Rough Idle



Surely someone has the specs? Sponsors?
One of them is the 219/227 I want to order
Old 11-21-2008, 10:48 AM
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Thumper GM LS cams

Thumpr 219/233 @ 50 .553/.536 109LSA

***** Thumpr 227/241 @50 .563/.546 109LSA

Big ***** Thumpr 235/249 @50 .573/.558 109LSA
Old 11-21-2008, 10:52 AM
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LSr cathedral port cams (small displacement or max torque 4.8-5.3)

54-455-11 215/223 .604/.610 112LSA

54-456-11 219/227 .607/.614 112LSA

54-457-11 223/231 .610/.617 112LSA

54-458-11 227/235 .614/.621 113LSA
Old 11-21-2008, 10:55 AM
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LSr Cathedral Port (All out power 5.7-6.2)

54-459-11 231/239 .617/.624 113LSA

54-460-11 235/243 .621/.624 113LSA

54-461-11 239/247 .624/.624 114LSA

54-462-11 243/251 .624/.624 114LSA
Old 11-21-2008, 10:58 AM
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LSr Cathedral Port (large displacement only 6.2-7.4)

54-463-11 247/255 .624/.624 114LSA

54-463-11 251/259 .624/.624 115LSA

54-464-11 255/263 .624/.624 115LSA

54-465-11 259/267 .624/.624 115LSA
Old 11-21-2008, 11:01 AM
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LSr Rectangular Port (all out power 5.7-6.2)

54-469-11 231/247 .617/.624 113LSA

54-470-11 235/251 .621/.624 113LSA

54-471-11 239/255 .624/.624 114LSA

54-472-11 243/259 .624/.624 114LSA
Old 11-21-2008, 11:04 AM
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LSr Rectangular port (large displacement 6.2-7.4)

54-473-11 247/263 .624/.624 114LSA

54-474-11 251/267 .624/.624 115LSA

54-475-11 255/271 .624/.624 115LSA

54-476-11 259/275 .624/.624 115LSA
Old 11-21-2008, 11:06 AM
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LSr Centrifugal Blower

54-477-11 227/243 .614/.624 114LSA

54-478-11 235/251 .621/.624 115LSA

54-479-11 243/259 .624/.624 116LSA
Old 11-21-2008, 11:08 AM
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LSr roots blower

54-467-11 239/243 .624/.624 114LSA

54-468-11 247/251 .624/.624 114LSA
Old 11-21-2008, 11:09 AM
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LSr Turbo (remote mount)

54-480-11 227/223 .614/.610 115LSA

54-481-11 235/231 .621/.617 115LSA
Old 11-21-2008, 11:11 AM
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XFI Broad Power Band Excellent Torque (single bolt cam)

146-426-11 222/234 .566/.576 113LSA

146-428-11 228/240 .571/.590 113LSA
Old 11-21-2008, 11:13 AM
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LSr Broad Power Excellent Torque (single bolt)

146-456-11 219/235 .607/.621 113LSA

146-458-11 227/243 .614/.624 113LSA
Old 11-21-2008, 11:15 AM
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LRs All Out Power (single bolt cam)

146-460-11 235/251 .621/.624 113LSA

146-461-11 239/255 .624/.624 114LSA

146-461-11 243/259 .624/.624 114LSA
Old 11-21-2008, 11:19 AM
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XFI SPR Cams and Phase Limiter Kit for Gen IV VVT engines

Cam Phase Limiter # 5456

Beehive Spring #26918

156-400-13 210/224 .556/.568 114LSA

156-401-13 214/228 .559/.571 114LSA

156-402-13 218/232 .563/.575 114LSA

156-403-13 222/236 .566/.578 114LSA
Old 11-21-2008, 11:23 AM
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Short Travel Race Hydraulic Lifters

SBC/LS1 part# 15850-16
LS1/Warhawk/LSX 15956-16

Ultra Gold Bolt Down Rockers
19024-16 1.72 ratio
19025-16 1.82 ratio

Off-set 1.7 Shaft Rockers for LS3/L92
#1521
Old 11-21-2008, 11:24 AM
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my comp rep dropped off all that info yesterday. I didn't type out the application data for each part number but if anyone wants that info for a particular number just let me know and I will post it when i get a chance


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