Summit ls turbo cams?
03-02-2019, 10:06 AM
#6
No, Summit started grinding their own LS cams with their own "specs". There is a guy on Facebook that says he's the engineer in charge of designing these cams. The "stage 2" turbo cam is nearly identical to the LJMS stage 2 cam in spec. I put one of the summit cams in a 6L in my c10 but it's only NA right now. Will get a pair of BW S359's this summer but it's making 375 wheel hp on my dyno right now.
Last edited by kbracing96; 03-17-2019 at 10:46 AM.
03-02-2019, 02:32 PM
#7
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03-02-2019, 02:34 PM
#8
TECH Apprentice
03-02-2019, 06:46 PM
#9
Yes the summit cams are ground by comp cams, it was a big secret until they started advertising cut by comp. Im looking at the exact same one.
I talked to a tech guy at summit today trying to find out what lobes are used but either they are not saying or honestly don't know. I personally would like to know before i purchase one.
I talked to a tech guy at summit today trying to find out what lobes are used but either they are not saying or honestly don't know. I personally would like to know before i purchase one.
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69-chvl (07-13-2019)
03-07-2019, 10:39 AM
#10
Launching!
I just had the stage 1 installed in my C6 LS3 (with an APS kit) right now. It fell right in place as far as location, and was able to start, run and drive immediately on my previous calibration (Virtual VE, MAF, and fuel injector models were within 2% before). I will dial in the part throttle VVE stuff for the cam change next week on the dyno. The plan is to have a sleeper that also passes actual tailpipe emissions testing.
03-08-2019, 09:33 AM
#12
I just had the stage 1 installed in my C6 LS3 (with an APS kit) right now. It fell right in place as far as location, and was able to start, run and drive immediately on my previous calibration (Virtual VE, MAF, and fuel injector models were within 2% before). I will dial in the part throttle VVE stuff for the cam change next week on the dyno. The plan is to have a sleeper that also passes actual tailpipe emissions testing.
03-08-2019, 10:12 PM
#13
Some of the Summit Truck cams look pretty good as well.
Stage 1 Truck High Lift: SUM-8719: 550/550 - 209/217 112+1
Stage 2 Truck: SUM-8701: 523/524 - 218/227 112+2
Stage 3 Truck: SUM-8713: .545/.545 - 222/231 112+5
Stage 1 Truck High Lift: SUM-8719: 550/550 - 209/217 112+1
Stage 2 Truck: SUM-8701: 523/524 - 218/227 112+2
Stage 3 Truck: SUM-8713: .545/.545 - 222/231 112+5
Last edited by topbrent; 03-08-2019 at 10:38 PM.
03-16-2019, 09:29 PM
#15
Looks like they pulled it however if you do a search at summit the last cam on the page comes up as a turbo cam stg one but its not and has a different part number. I assume they reverted to a NA cam as their new stg one unless they never had one and we never noticed.
03-19-2019, 09:35 AM
#16
Launching!
03-19-2019, 09:39 AM
#17
Launching!
I changed from the stock LS3 camshaft. Like I said, my goal is not max power, but rather emissions compliance (with tailpipe numbers to back it up) with perfect street manners and a modest power bump. I mapped all the part throttle and high load changes on the dyno last week (tire slip, so no WOT curve yet) and can confirm that it idles fine at 700rpm. Throttle response even below 1500rpm is excellent. Power now carries to 6400 where it used to peak at 6000.
03-19-2019, 03:04 PM
#19
TECH Apprentice
