I know this has been brought up before but...

navyman8903 · May 30th, 2009, 05:03 AM

Livernois lock outs, BBR lockouts, or comp cam phaser limiters. Which will work better?
I like the construction of the comp cams limiters better, but the livernois and the BBR are cheaper. Do the limit the same ammount? And will they have the same effect on the 127500 cams????

Anthony05GT · May 30th, 2009, 08:32 AM

If you go with the 127500 cams you should consider using limiters that are intended to limit the VCT to the same degree. I would go with the Livernois limiters though because they are spring loaded which really does cut out the phaser clicking noise. Some guys have installed the Comp limiters only to be pissed off about all of the noise.

The VCT system really is more for emission control than performance and using lockouts doesn't rob you of any noticable power.

Mickey · May 30th, 2009, 10:02 AM

comp limiters ftw

psycho bob · May 30th, 2009, 01:32 PM

i like the construction of comps also, but i'd like to hear some of the livernoise to see if the clicking really would be gone due to the use of a spring.

silverstang · May 30th, 2009, 02:04 PM

I had no extra engine noise after the comp limiter install........what are the sounds coming from these other cars like??

usafimj · May 30th, 2009, 02:45 PM

What are the limiters used for

kraigster · May 30th, 2009, 02:50 PM

They limit the amount camshaft retarding or advancing to 20 deg. so you don't have valve to piston problems with high lift cams etc..

usafimj · May 30th, 2009, 02:53 PM

Gotcha. Thanks. And how does that come into affect with making power. Will you gain more or less depending on what you set it at

kraigster · May 30th, 2009, 03:07 PM

You want to keep the VCT still functiong, some companies totally lock out the VCT but it has been proven on the dyno that there is 10-15 hp gain if you retain VCT and have cam timing properly tuned.

silverstang · May 30th, 2009, 04:04 PM

I think that is how I gained so much power with a set of thumpr cams maybe. They spent a long time getting the VCT tuned right on my car, besides just turning it off like alot of shops will do to you.

usafimj · May 30th, 2009, 04:23 PM

So its best to tune w/out limiters and just use the vct

navyman8903 · May 30th, 2009, 05:26 PM

Anyone know about the BBR's?

navyman8903 · May 31st, 2009, 10:26 PM

Originally Posted by kraigster

You want to keep the VCT still functiong, some companies totally lock out the VCT but it has been proven on the dyno that there is 10-15 hp gain if you retain VCT and have cam timing properly tuned.

With what cams and what was the total HP gained?

07stanggt · May 31st, 2009, 10:35 PM

Originally Posted by navyman8903

With what cams and what was the total HP gained?

With any cams the vct is good for 10hp like he said.

May 30th, 2009, 08:32 AM	#2
Anthony05GT Hardcore Enthusiast Join Date: Feb 2009 Posts: 1,462 iTrader: 1 reviews	If you go with the 127500 cams you should consider using limiters that are intended to limit the VCT to the same degree. I would go with the Livernois limiters though because they are spring loaded which really does cut out the phaser clicking noise. Some guys have installed the Comp limiters only to be pissed off about all of the noise. The VCT system really is more for emission control than performance and using lockouts doesn't rob you of any noticable power. __________________ JDM 302 Stroker, Whipple 10 rib 12 psi, L&M, JBA, J&M, LFP, Corsa, BBR Stage II cams, Manley, MGW, McLeod RST, Metco, Steeda, Autometer, CDC, Street Scene, SOS, Tuned at JPC Racing by Kevin MacDonald Last edited by Anthony05GT; May 30th, 2009 at 08:34 AM.

May 30th, 2009, 10:02 AM	#3
Mickey I Post Entirely Way Too Much Join Date: Nov 2007 Posts: 6,391 iTrader: 0 reviews	comp limiters ftw __________________ Under Construction

May 30th, 2009, 02:04 PM	#5
silverstang Hardcore Enthusiast 2007 Mustang GT Join Date: Mar 2008 Location: BFE Posts: 2,821 iTrader: 0 reviews	I had no extra engine noise after the comp limiter install........what are the sounds coming from these other cars like?? __________________ Bassani Crew Member #3

May 30th, 2009, 02:45 PM	#6
usafimj I Post Entirely Way Too Much 2007 Ford Mustang GT 12.847 @ 114.12mph Join Date: Sep 2007 Location: Oklahoma City, Ok. Posts: 5,084 iTrader: 1 reviews	What are the limiters used for __________________ 07 GT-- Gone But Not Forgotten Military Crew E-5

May 30th, 2009, 02:50 PM	#7
kraigster Enthusiast 2007 Mustang GT Join Date: Mar 2009 Location: St.Petersburg, Fl Posts: 570 iTrader: 0 reviews	They limit the amount camshaft retarding or advancing to 20 deg. so you don't have valve to piston problems with high lift cams etc.. __________________ Saleen rear fascia with center exhaust, MAC longtubes with o/r Prochamber, Steeda CAI w/carbon fiber elbow, SCT X3, Steeda UDPs, Hurst shifter, modified delete plates, Comp Cams and 4.10s.

May 30th, 2009, 02:53 PM	#8
usafimj I Post Entirely Way Too Much 2007 Ford Mustang GT 12.847 @ 114.12mph Join Date: Sep 2007 Location: Oklahoma City, Ok. Posts: 5,084 iTrader: 1 reviews	Gotcha. Thanks. And how does that come into affect with making power. Will you gain more or less depending on what you set it at __________________ 07 GT-- Gone But Not Forgotten Military Crew E-5

May 30th, 2009, 03:07 PM	#9
kraigster Enthusiast 2007 Mustang GT Join Date: Mar 2009 Location: St.Petersburg, Fl Posts: 570 iTrader: 0 reviews	You want to keep the VCT still functiong, some companies totally lock out the VCT but it has been proven on the dyno that there is 10-15 hp gain if you retain VCT and have cam timing properly tuned. __________________ Saleen rear fascia with center exhaust, MAC longtubes with o/r Prochamber, Steeda CAI w/carbon fiber elbow, SCT X3, Steeda UDPs, Hurst shifter, modified delete plates, Comp Cams and 4.10s.

May 30th, 2009, 04:04 PM	#10
silverstang Hardcore Enthusiast 2007 Mustang GT Join Date: Mar 2008 Location: BFE Posts: 2,821 iTrader: 0 reviews	I think that is how I gained so much power with a set of thumpr cams maybe. They spent a long time getting the VCT tuned right on my car, besides just turning it off like alot of shops will do to you. __________________ Bassani Crew Member #3

May 30th, 2009, 04:23 PM	#11
usafimj I Post Entirely Way Too Much 2007 Ford Mustang GT 12.847 @ 114.12mph Join Date: Sep 2007 Location: Oklahoma City, Ok. Posts: 5,084 iTrader: 1 reviews	So its best to tune w/out limiters and just use the vct __________________ 07 GT-- Gone But Not Forgotten Military Crew E-5

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