GPI VVT Camshafts - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Rhino79 · 10-08-2013, 06:51 PM

I have been getting a lot of pms with questions about our cams, so I figure I'd post up some basic info on them.

VVT grinds:
SS1, Power range idle to 6500
SS2, Power range 2000 to 6700 (works with stock converter or 2800+ converter)
SS3 Power range 3000 to 6800+ (3200+ converter required)
SS4 Power range 4000 to 7000+ (3600 minimum converter, best with 4000+) (flycutting required)

All these cams can be altered for different specific setups and also for forced induction, and/or nitrous applications.

For cam selection, just message me with your setup and goals, what kind of idle you are looking for and we can go from there!

62nalide · 10-08-2013, 07:11 PM

Is there something between the SS3 and SS4???? No shop around me wants to fly cut my pistons :(. Anyways Ordering mine this Fall!!!!!!

Rhino79 · 10-08-2013, 07:15 PM

Yes we can tailor one for u without cutting to work with ur converter.

Camarojt · 10-08-2013, 07:34 PM

How much difference is there between the SS3 and SS4? Also where does your old Mast cam fall in comparison to these?

62nalide · 10-08-2013, 07:37 PM

Quote:

Originally Posted by Camarojt

How much difference is there between the SS3 and SS4? Also where does your old Mast cam fall in comparison to these?

Good question!

Rhino79 · 10-08-2013, 08:44 PM

The mast is slightly larger in duration than the 3. The 4 is very aggressive. Personally, the 3 may be lesser in duration than the mast ss but it will make more tq and rival it's hp.

Camarojt · 10-08-2013, 08:56 PM

Quote:

Originally Posted by Rhino79

The mast is slightly larger in duration than the 3. The 4 is very aggressive. Personally, the 3 may be lesser in duration than the mast ss but it will make more tq and rival it's hp.

Good info. Thx.

grocerygetter · 10-08-2013, 10:52 PM

What's mine? Lol
Ss3 or ss3.5?

Rhino79 · 10-09-2013, 06:25 AM

Yours would be the ss3.

Denis · 10-09-2013, 07:31 AM

As far as idle goes, if you want a rough idle it would mean increasing duration correct? Or overlap? I forget. Does that have a negative effect anywhere else? Like are you sacrificing anything to get that lope?

I'd really like to start sourcing parts for a cam swap.

Rhino79 · 10-09-2013, 08:03 AM

The lobe separation will change idle characteristics, and a tighter lsa (111 vs a 114) will lope more aggressively. But with that, overlap increases and drive-ability can decrease some on larger cam profiles. BUT, a lot of that falls on the hands of the person calibrating the car, as I have done several cammed ls setups, from 108 and up on lsa. You make a tight lsa drive good, but it is more work, and the rest of the setup needs to be right.
Obviously changing duration is going to have some effect as well but when someone is looking for a specific idle and or power range, it isn't going to just come down to one thing like lsa, or duration....its the profile as a whole.

Denis · 10-09-2013, 08:47 AM

got ya, thanks for clearing that up. shot ya a PM

Unobtainium · 10-12-2013, 07:58 PM

Got my order in for a turbo stock converter cam. Going to install and tune before building TT set-up.
Thanks Rhino!

jkof08 · 11-26-2013, 04:40 PM

so what if i dont want a very lopy sound i like it clean, can i get a cam like that, but still produce good hp?

10-08-2013, 06:51 PM	#1
Rhino79 Drives: 2010 Camaro SS L99/Auto Join Date: Jul 2011 Location: Cabot, AR Posts: 2,827 View My Garage	GPI VVT Camshafts I have been getting a lot of pms with questions about our cams, so I figure I'd post up some basic info on them. VVT grinds: SS1, Power range idle to 6500 SS2, Power range 2000 to 6700 (works with stock converter or 2800+ converter) SS3 Power range 3000 to 6800+ (3200+ converter required) SS4 Power range 4000 to 7000+ (3600 minimum converter, best with 4000+) (flycutting required) All these cams can be altered for different specific setups and also for forced induction, and/or nitrous applications. For cam selection, just message me with your setup and goals, what kind of idle you are looking for and we can go from there!

10-08-2013, 07:11 PM	#2
62nalide Drives: 2013 SS Join Date: May 2013 Location: DFW Posts: 4,102	Is there something between the SS3 and SS4???? No shop around me wants to fly cut my pistons :(. Anyways Ordering mine this Fall!!!!!! __________________ https://frankensteined.net/ Martin@Frankensteined.net

10-08-2013, 10:52 PM	#8
grocerygetter instigator Drives: 2020 6.2 Trail Boss, 2022 XC90 Join Date: Jan 2010 Location: 72034 Posts: 3,979 View My Garage	What's mine? Lol Ss3 or ss3.5? __________________ -John S.

10-09-2013, 07:31 AM	#10
Denis Drives: 2010 SS Join Date: May 2012 Location: Yorktown Heights, NY Posts: 7,695 View My Garage	As far as idle goes, if you want a rough idle it would mean increasing duration correct? Or overlap? I forget. Does that have a negative effect anywhere else? Like are you sacrificing anything to get that lope? I'd really like to start sourcing parts for a cam swap. __________________

10-09-2013, 08:47 AM	#12
Denis Drives: 2010 SS Join Date: May 2012 Location: Yorktown Heights, NY Posts: 7,695 View My Garage	got ya, thanks for clearing that up. shot ya a PM __________________

10-08-2013, 07:15 PM	#3
Rhino79 Drives: 2010 Camaro SS L99/Auto Join Date: Jul 2011 Location: Cabot, AR Posts: 2,827 View My Garage	Yes we can tailor one for u without cutting to work with ur converter.

10-08-2013, 07:34 PM	#4
Camarojt Drives: 2011camaro SS Join Date: Nov 2012 Location: Allen, Tx Posts: 2,202	How much difference is there between the SS3 and SS4? Also where does your old Mast cam fall in comparison to these?

10-08-2013, 08:44 PM	#6
Rhino79 Drives: 2010 Camaro SS L99/Auto Join Date: Jul 2011 Location: Cabot, AR Posts: 2,827 View My Garage	The mast is slightly larger in duration than the 3. The 4 is very aggressive. Personally, the 3 may be lesser in duration than the mast ss but it will make more tq and rival it's hp.

10-09-2013, 06:25 AM	#9
Rhino79 Drives: 2010 Camaro SS L99/Auto Join Date: Jul 2011 Location: Cabot, AR Posts: 2,827 View My Garage	Yours would be the ss3.

10-09-2013, 08:03 AM	#11
Rhino79 Drives: 2010 Camaro SS L99/Auto Join Date: Jul 2011 Location: Cabot, AR Posts: 2,827 View My Garage	The lobe separation will change idle characteristics, and a tighter lsa (111 vs a 114) will lope more aggressively. But with that, overlap increases and drive-ability can decrease some on larger cam profiles. BUT, a lot of that falls on the hands of the person calibrating the car, as I have done several cammed ls setups, from 108 and up on lsa. You make a tight lsa drive good, but it is more work, and the rest of the setup needs to be right. Obviously changing duration is going to have some effect as well but when someone is looking for a specific idle and or power range, it isn't going to just come down to one thing like lsa, or duration....its the profile as a whole.

10-12-2013, 07:58 PM	#13
Unobtainium Fabricator Drives: 2011 2SS Summit White Join Date: Jun 2011 Location: Langdon, AB Posts: 505	Got my order in for a turbo stock converter cam. Going to install and tune before building TT set-up. Thanks Rhino! __________________ Roto-fab CAI Unobtainium Welding Exhaust ARH LT's 393whp L99 GPI VVT Turbo Cam-in

11-26-2013, 04:40 PM	#14
jkof08 Drives: Black 2SS/RS Join Date: Mar 2013 Location: Valdosta Posts: 294	so what if i dont want a very lopy sound i like it clean, can i get a cam like that, but still produce good hp? __________________ C.A.I. CAI, FlowMaster Pro Series, 1LE Strut Brace, Ported Throttle Body, Vengeance Tune, JRE Scoop, MSD Wires, 3.70 Gears, Stainless Works LT Headers and Hi Flow Cats, Pro Torque 3500 stall, LS3 Conversion Stage 2 TSP Port & Polished Heads, Kaotik CAM. 18x10 Forgestar F14 wrapped in 305/45/18 MT Street ET II's 12.068 @ 119.9 1.9 60ft (on 20' DR's with a VVT CAM)