L99 VVT / AFM Camshaft Dyno Results & Explanations - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

RedJewel2SS · 08-20-2010, 10:24 AM

Quote:

Originally Posted by markmass

What gains do you think you will see without replacing heads? I had a dyno pull the other day 346HP to the wheels. Kooks headers/CATS, MACH XL catback, and a CAI.
Thanks

sounds like you need a dyno tune... you should be pushing about 360hp with those mods and a tune.

Matt TuneTime · 08-20-2010, 10:45 AM

Fyi , AFM lifters belong in the garbage can , We have seen 5 sets Bone stock 5.3 afm lifters fail in soccer mom Suv's [ GM has no solution except to replace with the same afm lifter ] Every one we have removed has wear signs ... Some with less then 2k on them ... Once you get past 15-20k they all make noise on startup ... As per the engineer who developed them .525 is the max lift they will handle [ we have ran them higher ] ... We have tested [ on the road for 3-5k each ] 5 different cams for afm back in 2007-2008 all of them had accelerated wear ... Do your self a favor and just remove them they are junk ... VVT on the other hand is wonderfull ... We have been using Mast VVT cams for a while ... Thank you Texas Speed for also seeing that VVT works very well ... I look forward to using Some of your VVT grinds

toehead93 · 08-20-2010, 11:08 AM

Quote:

Originally Posted by RedJewel2SS

sounds like you need a dyno tune... you should be pushing about 360hp with those mods and a tune.

Every dyno is different, he might be making 385RWHP on another dyno.

*mlee* · 08-20-2010, 11:14 AM

Quote:

Originally Posted by Matt TuneTime

Fyi , AFM lifters belong in the garbage can , We have seen 5 sets Bone stock 5.3 afm lifters fail in soccer mom Suv's [ GM has no solution except to replace with the same afm lifter ] Every one we have removed has wear signs ... Some with less then 2k on them ... Once you get past 15-20k they all make noise on startup ...

Wonderful news... I just bought a Tahoe with the 5.3 and AFM...

Matt TuneTime · 08-20-2010, 11:40 AM

Quote:

Originally Posted by mlee

Wonderful news... I just bought a Tahoe with the 5.3 and AFM...

LOL so did a close friend of mine in 08 .... About a month ago he backed in his driveway and 3 of them failed ... He called me in a panic and I told him what happened ... 2 days later Dealer called and told him the afm lifters failed ...

trudawg660 · 08-20-2010, 11:43 AM

mine failed when i was leaving camaro fest. every time i pushed the gas a cloud of white smoke came of the exhaust.

*mlee* · 08-20-2010, 11:47 AM

Quote:

Originally Posted by Matt TuneTime

LOL so did a close friend of mine in 08 .... About a month ago he backed in his driveway and 3 of them failed ... He called me in a panic and I told him what happened ... 2 days later Dealer called and told him the afm lifters failed ...

Quote:

Originally Posted by trudawg660

mine failed when i was leaving camaro fest. every time i pushed the gas a cloud of white smoke came of the exhaust.

Well at least I'll be ready when it happens... only 3,500 miles on so far...

But they will be long gone before then in the Camaro....

383ss · 08-20-2010, 10:20 PM

Quote:

Originally Posted by Matt TuneTime

LOL so did a close friend of mine in 08 .... About a month ago he backed in his driveway and 3 of them failed ... He called me in a panic and I told him what happened ... 2 days later Dealer called and told him the afm lifters failed ...

damn... thats not good to hear. I had 40k miles on my AFM 6.0 in my truck and never had or heard a single issue. :shrug:

VADER SS L99 · 08-21-2010, 04:11 AM

I also dont trust the AFM lifters for performance use and will be tossing them with the new heads and cam. On a side note they are noisy and you can really hear their noise after a header install.

Jason 98 TA · 08-23-2010, 11:33 AM

Agreed the AFM lifters suck. :( :( That being said these lobes vvt/afm cams are designed to be just as safe on the lifters as a stock camshaft. The bad news is even stock cars & trucks have afm lifter failures from time to time.

Thats why I really like getting rid of AFM and getting the VVT TSP camshafts with more aggressive lobes!!

Darth_Emma · 08-23-2010, 11:44 AM

Quote:

Originally Posted by Jason 98 TA

Yes we will be doing supercharger specific camshafts for you Maggie guys!

and gals...

racrx451 · 08-23-2010, 01:05 PM

wow.. this is in my future plans! thanx for putting in all the work!

Silver Ice Man · 08-23-2010, 01:19 PM

Will there be a video in the near future to here what this monster is going to sound like??
At least at an idle.

woodside783 · 08-23-2010, 03:06 PM

is there a company that has a replacment for these lifters?

08-21-2010, 04:11 AM	#51
VADER SS L99 Drives: 2013 A6 GT 5.0 Join Date: Nov 2009 Location: Edmond, OK Posts: 2,909	I also dont trust the AFM lifters for performance use and will be tossing them with the new heads and cam. On a side note they are noisy and you can really hear their noise after a header install. __________________ BLK/BLK 1SS/RS Ordered 11-01-2009 Took delivery 12-22-2009. Heads/cam/converter/bolt ons. SOLD Feb 2015 to fund 6th gen LT1 SS with 8L90E.

08-23-2010, 01:19 PM	#55
Silver Ice Man Drives: 2014 2SS/RS Spring limited edition Join Date: Jul 2009 Location: Drayton Valley, Ab Posts: 492	Will there be a video in the near future to here what this monster is going to sound like?? At least at an idle. __________________ 2014 2SS/RS, Spring Limited Edition... Ask yourself.....when you turn on your car..... Does it return the favor..... MODS: CIA cold air intake, Oil catch can, Dynatech LT Headers, Dynatech Power cats, Dynatech Cat back exhaust, Janetty racing tune, Vitesse throttle controller, Headlight and marker tint, more to follow....

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08-20-2010, 10:45 AM	#44
Matt TuneTime Drives: 2008 G8 gt / 2010 Camaro L99 Join Date: Oct 2008 Location: Lakewood Posts: 193	Fyi , AFM lifters belong in the garbage can , We have seen 5 sets Bone stock 5.3 afm lifters fail in soccer mom Suv's [ GM has no solution except to replace with the same afm lifter ] Every one we have removed has wear signs ... Some with less then 2k on them ... Once you get past 15-20k they all make noise on startup ... As per the engineer who developed them .525 is the max lift they will handle [ we have ran them higher ] ... We have tested [ on the road for 3-5k each ] 5 different cams for afm back in 2007-2008 all of them had accelerated wear ... Do your self a favor and just remove them they are junk ... VVT on the other hand is wonderfull ... We have been using Mast VVT cams for a while ... Thank you Texas Speed for also seeing that VVT works very well ... I look forward to using Some of your VVT grinds

08-20-2010, 11:43 AM	#48
trudawg660 Drives: 2006 Dodge Charger / 2SS IOM Join Date: Dec 2008 Location: United Kingdom Posts: 1,640	mine failed when i was leaving camaro fest. every time i pushed the gas a cloud of white smoke came of the exhaust.

08-23-2010, 11:33 AM	#52
Jason 98 TA Drives: Camaro Join Date: Apr 2009 Location: Texas Posts: 1,669	Agreed the AFM lifters suck. :( :( That being said these lobes vvt/afm cams are designed to be just as safe on the lifters as a stock camshaft. The bad news is even stock cars & trucks have afm lifter failures from time to time. Thats why I really like getting rid of AFM and getting the VVT TSP camshafts with more aggressive lobes!!

08-23-2010, 01:05 PM	#54
racrx451 Drives: 2010 white SS Join Date: May 2010 Location: DMI Posts: 216	wow.. this is in my future plans! thanx for putting in all the work!

08-23-2010, 03:06 PM	#56
woodside783 Casey Woodside Drives: a very fun car Join Date: Jun 2010 Location: Tn Posts: 1,906	is there a company that has a replacment for these lifters?