L99 VVT / AFM Camshaft Dyno Results & Explanations - Page 5 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

trudawg660 · 08-23-2010, 04:11 PM

Quote:

Originally Posted by woodside783

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

u can use the ls7 lifters

VADER SS L99 · 08-23-2010, 08:58 PM

Quote:

Originally Posted by trudawg660

u can use the ls7 lifters

+1 just use factory LS7 lifters. Only 8 are needed. We currenty have 8 LS7 lifters in the motor right now with 8 AFM(POS) lifters.

woodside783 · 08-24-2010, 08:13 AM

why did you only put 8 in

trudawg660 · 08-24-2010, 11:34 AM

because the other 8 lifter are already the LS7 lifters so you only need to change 8. one engine has 16 lifters

woodside783 · 08-24-2010, 04:06 PM

oh good this is something i want to do and get ride of the afm.

PatrickfromMD · 08-25-2010, 09:00 AM

Quote:

Originally Posted by Duke

Back in my day there was no such thing as AFM. So I'm wondering if the lower compression ratio in the L99 is also to keep the AFM lifters happy?

Seems like one of the aftermarket guys would design some AFM lifters that could take the higher lift, higher compression ratio, stiffer springs, etc.

The L99s pistons have valve reliefs. I’m told that the reason for the slightly lower compression. The valve reliefs provide more clearance when you start moving the cam around with the VVT.

Jason 98 TA · 08-25-2010, 10:09 AM

We will offer the L99 guys LS7 replacement lifters for the 8 they need to replace! They are $140 a set (or $70 for 8 lifters)

racrx451 · 08-25-2010, 10:34 AM

good to know. so basically we have to be pretty stupid not to do this mod? ha

Silver Ice Man · 08-25-2010, 10:36 AM

Quote:

Originally Posted by Jason 98 TA

We will offer the L99 guys LS7 replacement lifters for the 8 they need to replace! They are $140 a set (or $70 for 8 lifters)

Isn't it better to replace all lifters when doing a new cam anyway??
Thought I heard that somewhere, something about new surfaces mating to each other

RedJewel2SS · 08-25-2010, 11:34 AM

Quote:

Originally Posted by Silver Ice Man

Isn't it better to replace all lifters when doing a new cam anyway??
Thought I heard that somewhere, something about new surfaces mating to each other

better safe than sorry, especially over $70!!! install costs should be the same, i believe it will take all of 5 minutes to remove and install the other 8 lifters, if your already going to replace the AFM ones

racrx451 · 08-25-2010, 11:51 AM

when can we expect these to be available?

duffmobile · 08-25-2010, 12:12 PM

What is the checklist of items needed to do a VVT cam swap? (AFM disabled)

VVT camshaft (duh!) = ??
LS7 lifters = $140
Labor = ??

What else do you need parts wise. I wonder what the ballpark cost will be.

Kyle2k · 08-25-2010, 12:53 PM

The dyno you posted was of a small cam if I'm understanding this correctly. Can we see some graphs of the bigger ones

RedJewel2SS · 08-25-2010, 01:22 PM

Quote:

Originally Posted by duffmobile

What is the checklist of items needed to do a VVT cam swap? (AFM disabled)

VVT camshaft (duh!) = ??
LS7 lifters = $140
Labor = ??

What else do you need parts wise. I wonder what the ballpark cost will be.

valley cover
lifter trays
head bolts
head gasket

08-25-2010, 12:12 PM	#68
duffmobile Drives: 2010 Camaro 2SS/RS - IOM/IOM Join Date: Mar 2009 Location: Frankfort, IL Posts: 374	What is the checklist of items needed to do a VVT cam swap? (AFM disabled) VVT camshaft (duh!) = ?? LS7 lifters = $140 Labor = ?? What else do you need parts wise. I wonder what the ballpark cost will be. __________________ L99 with 2.8 LC Kenne Bell, Kooks 1 7/8 headers, Corsa Catback, R2C CAI, 491 RWHP / 500 RWTQ ---- 2010 MY #7539

08-25-2010, 12:53 PM	#69
Kyle2k LVL 50 Troll Stomper Drives: 2010 Camaro Join Date: Feb 2008 Location: Indianapolis Posts: 3,463	The dyno you posted was of a small cam if I'm understanding this correctly. Can we see some graphs of the bigger ones __________________

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08-24-2010, 08:13 AM	#59
woodside783 Casey Woodside Drives: a very fun car Join Date: Jun 2010 Location: Tn Posts: 1,906	why did you only put 8 in

08-24-2010, 11:34 AM	#60
trudawg660 Drives: 2006 Dodge Charger / 2SS IOM Join Date: Dec 2008 Location: United Kingdom Posts: 1,640	because the other 8 lifter are already the LS7 lifters so you only need to change 8. one engine has 16 lifters

08-24-2010, 04:06 PM	#61
woodside783 Casey Woodside Drives: a very fun car Join Date: Jun 2010 Location: Tn Posts: 1,906	oh good this is something i want to do and get ride of the afm.

08-25-2010, 10:09 AM	#63
Jason 98 TA Drives: Camaro Join Date: Apr 2009 Location: Texas Posts: 1,670	We will offer the L99 guys LS7 replacement lifters for the 8 they need to replace! They are $140 a set (or $70 for 8 lifters)

08-25-2010, 10:34 AM	#64
racrx451 Drives: 2010 white SS Join Date: May 2010 Location: DMI Posts: 216	good to know. so basically we have to be pretty stupid not to do this mod? ha

08-25-2010, 11:51 AM	#67
racrx451 Drives: 2010 white SS Join Date: May 2010 Location: DMI Posts: 216	when can we expect these to be available?