Cam selection help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

softballnrd27 · 02-02-2011, 10:58 AM

I am trying to nail down a good cam for my build. I am looking at the Texas Speed Torquer V2 (232/234 @.050" .595/.598) and I have a choice of 112, 113, or 114 lobe seperation. What seperation should I go with? Does this sound like a good cam? I am going to keep the stock Truck intake for the time being and upgrade it later on down the line to a Vic Jr w/elbow or Pro-Flo XT. Help me Please!!

Notch1988 · 02-02-2011, 08:30 PM

It's a very good cam with supporting mods (headers, gears, convertor). Personally, I'd go 112 lsa for the idle.

swb85 · 02-02-2011, 10:55 PM

The lower lsa will produce:
more overlap, rougher idle
narrower power band but higher peaks at lower rpm
decreased piston to valve clearance

The higher lsa will produce:
less overlap, smoother idle
broader power band with slightly lower peaks but carry further past peak
increased piston to valve clearance

I personally like tight lobe separations on my n/a motors for the torque curve they produce.
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matthew20061 · 02-03-2011, 04:07 AM

It sounds like a pretty good cam to me, but I don't know the specifics of your engine, ect. I would personally go with the 112 LSA like swb85 said, that way you get a nice sounding idle!!

softballnrd27 · 02-03-2011, 08:06 AM

The motor is going to be stock internally(rebuilt), Stock 317s, aftermarket intake, and headers with the supporting converter and gears. I will more than likely throw a 150 shot of funny gas on it when I go to the strip.

BR3W CITY · 02-03-2011, 05:59 PM

I called TSP when I was looking at the torquer and a few other cams. I asked pretty flat out; "I've got a stock 6.0, with larger injectors, and I'd like the most cam I can get without PTVC problems" After a few minutes discussing my goals (similar to yours, stock mostly with some juice possible in the future), and they suggested the Tsunami, in 111 LSA. Given, it may hump more than some like for street manners but its a hefty cam.

Notch1988 · 02-03-2011, 08:06 PM

Quote:

Originally Posted by BR3W CITY

I called TSP when I was looking at the torquer and a few other cams. I asked pretty flat out; "I've got a stock 6.0, with larger injectors, and I'd like the most cam I can get without PTVC problems" After a few minutes discussing my goals (similar to yours, stock mostly with some juice possible in the future), and they suggested the Tsunami, in 111 LSA. Given, it may hump more than some like for street manners but its a hefty cam.

Do you have this cam in yet? Experience with it?

BR3W CITY · 02-04-2011, 01:33 PM

The cam is in the engine, but the engine is not yet in the truck. Its -3 WC here and we just got 20" of snow...haven't been to the garage in a bit lol.

85burb · 02-04-2011, 09:37 PM

Got a 111LSA in mine and boy let me tell you it sounds great. Power comes in very fast. Cam is listed in my sig. It will idle at 600 RPM in gear at 22 degres outside.

Notch1988 · 02-04-2011, 09:48 PM

Quote:

Originally Posted by BR3W CITY

The cam is in the engine, but the engine is not yet in the truck. Its -3 WC here and we just got 20" of snow...haven't been to the garage in a bit lol.

LOL, when it's cold and snowing here the only place you'll find me is in the garage.

Did you check piston to valve?

02-02-2011, 10:58 AM	#1
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Cam selection help I am trying to nail down a good cam for my build. I am looking at the Texas Speed Torquer V2 (232/234 @.050" .595/.598) and I have a choice of 112, 113, or 114 lobe seperation. What seperation should I go with? Does this sound like a good cam? I am going to keep the stock Truck intake for the time being and upgrade it later on down the line to a Vic Jr w/elbow or Pro-Flo XT. Help me Please!! __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

02-02-2011, 08:30 PM	#2
Notch1988 Registered User Join Date: Aug 2009 Location: Lacombe, Alberta Posts: 335	Re: Cam selection help It's a very good cam with supporting mods (headers, gears, convertor). Personally, I'd go 112 lsa for the idle.

02-02-2011, 10:55 PM	#3
swb85 On a budget like Fred Sanford Join Date: Oct 2005 Location: Topeka, KS Posts: 2,031	Re: Cam selection help The lower lsa will produce: more overlap, rougher idle narrower power band but higher peaks at lower rpm decreased piston to valve clearance The higher lsa will produce: less overlap, smoother idle broader power band with slightly lower peaks but carry further past peak increased piston to valve clearance I personally like tight lobe separations on my n/a motors for the torque curve they produce. Posted via Mobile Device __________________ '85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD

02-03-2011, 04:07 AM	#4
matthew20061 69' Chevy Stepside Join Date: Mar 2008 Location: Anchorage, Ak Posts: 526	Re: Cam selection help It sounds like a pretty good cam to me, but I don't know the specifics of your engine, ect. I would personally go with the 112 LSA like swb85 said, that way you get a nice sounding idle!! __________________ -Matthew -69' Chevy Custom/10 Shortbed Stepside 2WD "Copperhead" - Restored, 6.0L LQ9 Built. L92 Heads and LS3 Intake with Comp Cam 223/231 .610/.617 112 LSA, 4L60E with Shift Kit and Circle-D 3200 Stall Converter ~Build Thread -1957 Chevy BelAir 2 Door Post Sedan, Full Frame off Restoration done myself - 6.0L with T56 six speed -1957 Chevy BelAir 2 Door Post Sedan - Nearly rust free AK car, Project in the waiting -2003' Chevy Silverado SS AWD 6.0L! - Daily Driver

02-03-2011, 08:06 AM	#5
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: Cam selection help The motor is going to be stock internally(rebuilt), Stock 317s, aftermarket intake, and headers with the supporting converter and gears. I will more than likely throw a 150 shot of funny gas on it when I go to the strip. __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

02-03-2011, 05:59 PM	#6
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Cam selection help I called TSP when I was looking at the torquer and a few other cams. I asked pretty flat out; "I've got a stock 6.0, with larger injectors, and I'd like the most cam I can get without PTVC problems" After a few minutes discussing my goals (similar to yours, stock mostly with some juice possible in the future), and they suggested the Tsunami, in 111 LSA. Given, it may hump more than some like for street manners but its a hefty cam. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

02-04-2011, 01:33 PM	#8
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Cam selection help The cam is in the engine, but the engine is not yet in the truck. Its -3 WC here and we just got 20" of snow...haven't been to the garage in a bit lol. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

02-04-2011, 09:37 PM	#9
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: Cam selection help Got a 111LSA in mine and boy let me tell you it sounds great. Power comes in very fast. Cam is listed in my sig. It will idle at 600 RPM in gear at 22 degres outside. __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

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