Thinking about adding a cam on my supercharged GS
#1
Pro
Thread Starter
Thinking about adding a cam on my supercharged GS
I’m thinking of adding a cam on my 2013 manual Grandsport. It has an A&A V3Si, Kooks long tube headers and running about 9-10# boost making over 600+rwhp. I don’t race the car at the track at all. Just spirited driving on open roads and highway pulls. Also long trips with the wife—thank goodness for NPP exhaust! Anyways, I’m looking for suggestions from anyone that have done them and using their car in my similar application, like how big a cam,etc. Please post vids of your cammed C6. Thank you, I appreciate it very much.
#2
Pro
I have a BTR LS3 Centri Blower cam in my Novi 1500 Supercharged 2013. It runs awesome. Makes great power and sounds great. I use my car very similar to your uses and it is completely driveable. It shakes a bit at idle and I may have to push the brake a little bit extra when coming to a stop, but it doesn't bother me at at all. Great cam for centri blower. I make just short of 800 rwhp with meth and headers.
#3
Burning Brakes
I have a 2010 base, LS3, A&A kit V-3 Si, 3.4" pulley, single nozzle meth, 3,200 stall converter, 1 7/8th long tube headers, X pipe, Borla S-Type. Makes 9 or so pounds of boost and 693 WHP on a hot day, pulling a little timing.
I have this cam;
I have this cam;
Last edited by SteveJewels; 09-07-2020 at 01:58 PM.
#4
Pro
Thread Starter
I have a BTR LS3 Centri Blower cam in my Novi 1500 Supercharged 2013. It runs awesome. Makes great power and sounds great. I use my car very similar to your uses and it is completely driveable. It shakes a bit at idle and I may have to push the brake a little bit extra when coming to a stop, but it doesn't bother me at at all. Great cam for centri blower. I make just short of 800 rwhp with meth and headers.
#5
Pro
Last edited by D-Dub2013; 09-07-2020 at 03:17 PM. Reason: Added link
#6
Pro
Thread Starter
Sounds great. Plan is to do this cam swap before the Holiday$ gets here. This will definitely be it in the horsepower mods. But then again we always say that, don’t we?lol
#7
Burning Brakes
I think the drivability is good but I am far more tolerant of lumpy cam behavior and loud exhaust than most.
#8
Le Mans Master
Absolutely no reason to over cam a supercharged LS engine. How fast you spin the blower is going to determine how much power you make...not how big and nasty the camshaft is. Unless you just like a nasty sounding LS3, I'd stick to negative overlap. You can have the smooth and efficient along with your fast. Get Pat G to spec you a cam that fits what you're trying to do. I can spec you one that I'm sure would make me happy. Get him to spec you one that makes YOU happy. The forty bucks or so that you pay him will be the best money you'll spend on your Vette.
The following 2 users liked this post by old motorhead:
Chiselchst (09-08-2020),
schpenxel (09-07-2020)
#9
Pro
Thread Starter
Absolutely correct. I’m not wanting a big cam and I’m not wanting a small cam either. I want a cam that will compliment the blower and make excellent power under the curve as opposed to peak rpm power. I also want that “cammed”sound as well!
#10
Pro
Last edited by D-Dub2013; 09-07-2020 at 10:01 PM. Reason: typo
#11
I have a BTR LS3 Centri Blower cam in my Novi 1500 Supercharged 2013. It runs awesome. Makes great power and sounds great. I use my car very similar to your uses and it is completely driveable. It shakes a bit at idle and I may have to push the brake a little bit extra when coming to a stop, but it doesn't bother me at at all. Great cam for centri blower. I make just short of 800 rwhp with meth and headers.
The following users liked this post:
D-Dub2013 (09-08-2020)
#13
Pro
#14
Drifting
Great advice as usual from OldMotorHead.
If you can afford an additional ~$750 to you budget, swap your heads out with a set of CNC ported LS3 heads from Texas Speed. They do a performance valve job, too. Many of them running around out there, they (PRC/TSP) do good work. Ads HP without effecting drive ability, and will help lower boost for slightly less load on blower/belt.
If you can afford an additional ~$750 to you budget, swap your heads out with a set of CNC ported LS3 heads from Texas Speed. They do a performance valve job, too. Many of them running around out there, they (PRC/TSP) do good work. Ads HP without effecting drive ability, and will help lower boost for slightly less load on blower/belt.
Absolutely no reason to over cam a supercharged LS engine. How fast you spin the blower is going to determine how much power you make...not how big and nasty the camshaft is. Unless you just like a nasty sounding LS3, I'd stick to negative overlap. You can have the smooth and efficient along with your fast. Get Pat G to spec you a cam that fits what you're trying to do. I can spec you one that I'm sure would make me happy. Get him to spec you one that makes YOU happy. The forty bucks or so that you pay him will be the best money you'll spend on your Vette.
The following users liked this post:
old motorhead (09-09-2020)
#15
#16
Le Mans Master
Another one for the 22x/24x duration cam. Car has an A&A V3 T-trim blower making 6 lbs of boost. Frankenstein-ported LS2 heads and 402 ci bottom end. Car makes 673 rwhp, idles about like D-dub's car, and has tons of midrange torque. I usually reverse out of parking spaces by just easing out the clutch, no gas needed.
#17
Race Director
Member Since: May 2004
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St. Jude Donor '15
I have a 220/240, 0.600/0.600 lift, 117+2, I think, in mine. It's been a while.. but overall feels like I picked up a decent amount with it. If I were doing it over I'd probably go a tad more aggressive on the LSA so it sounds an itty bit more cam'd but I don't drive mine that much any more so it's easier to say that. Something in that ballpark will do what you're wanting though. I use BTR 660 springs as well, should last a long time like that.
Last edited by schpenxel; 09-17-2020 at 10:04 AM.
#19
Pro
Thread Starter
Thanks for all your suggestions. I will be going to a different direction at this time. Instead of a cam swap, I am looking into utilizing E85 fuel. There seems to be great, amazing results with E85 especially in boosted application. So this is what I will do now. I will probably install a cam in the future. Thank you all, Corvette Forum!
#20
Le Mans Master
Thanks for all your suggestions. I will be going to a different direction at this time. Instead of a cam swap, I am looking into utilizing E85 fuel. There seems to be great, amazing results with E85 especially in boosted application. So this is what I will do now. I will probably install a cam in the future. Thank you all, Corvette Forum!