L99 VVT / AFM Camshaft Dyno Results & Explanations - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

cam- · 08-18-2010, 11:02 AM

Nice work

kaler · 08-18-2010, 11:12 AM

Very nice TSP I cant wait to see what the C/H gains are!!!! It looks like I have the same goals as RedJewel2ss(450rwhp) and 383ss(11.5et's)I don't want a cage

Jason as soon as you can can you post some idle video's,this car is my wifes daily driver and she wants the most radical idle possible

some guys have all the luck!

Jason 98 TA · 08-18-2010, 11:19 AM

Ok here we go guys. This is the perfect comparison for you guys.

This is comparing the exact same camshaft with VVT & without VVT (camshaft left at +3)
This easily shows how the VVT allows us to advance additional down low & then pull the advance out in upper rpm making a much better powerband.

kaler · 08-18-2010, 11:24 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.

I think the major problem (excluding PVC) is that oil pressure is what is used to move (phase) the cam and when you get too aggressive with the spring pressure,ramp rate,lift etc. at some point there is just not enough oil pressure too control the cam.

trudawg660 · 08-18-2010, 11:40 AM

Cant wait to see what Livernois says. because they have been promoting the LS3 conversion.

Silver Ice Man · 08-18-2010, 11:43 AM

Quote:

Originally Posted by kaler

Very nice TSP I cant wait to see what the C/H gains are!!!! It looks like I have the same goals as RedJewel2ss(450rwhp) and 383ss(11.5et's)I don't want a cage

Jason as soon as you can can you post some idle video's,this car is my wifes daily driver and she wants the most radical idle possible

some guys have all the luck!

X2, this is exactly what I was looking for, hope she has a mean idle sound.

Great job guys

I am watching this one closely

Hesh · 08-19-2010, 01:18 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.

Reason the aftermarket hasnt made anything yet is becasue GM still has the patent(sp) on those lifters. So will be some time before the aftermarket gets around to those.

VADER SS L99 · 08-19-2010, 02:18 AM

Quote:

Originally Posted by Silver Ice Man

X2, this is exactly what I was looking for, hope she has a mean idle sound.

Great job guys

I am watching this one closely

I am hoping the small cam has a stock sleeper idle and stock like driveability so I hope they make different ones for all our needs. I for one will be deleting AFM and puting the ported heads on at the same time. Have you guys figured out how much the heads can be milled with each cam. I think this would be very important for those of us who are opting for the VVT non AFM cam because the majority of those who get that cam will be doing heads too and it would be nice to get the same compression as the LS3.

toehead93 · 08-19-2010, 08:40 AM

Vader, I'm 100% on the same page as you.

thesnoopster · 08-19-2010, 10:01 AM

Hey this is some good information and results! Good Job Guys!

I will be keeping my eye on this stuff

*mlee* · 08-19-2010, 12:36 PM

Quote:

Originally Posted by toehead93

Vader, I'm 100% on the same page as you.

+1 except for the sleeper idle... I'll need a little higher lift for a nice lope... :updown:

markmass · 08-19-2010, 06:32 PM

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

cam- · 08-19-2010, 08:50 PM

Quote:

Originally Posted by Jason 98 TA

Ok here we go guys. This is the perfect comparison for you guys.

This is comparing the exact same camshaft with VVT & without VVT (camshaft left at +3)
This easily shows how the VVT allows us to advance additional down low & then pull the advance out in upper rpm making a much better powerband.

Whats the specs on that cam? Duration numbers are fine of you want to keep it under wraps

383ss · 08-20-2010, 08:10 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

did you actually read this thread? there are multiple dyno graphs showing gains

08-19-2010, 08:40 AM	#37
toehead93 Drives: 2014 2SS/1LE Join Date: Feb 2007 Location: wpb fl Posts: 3,136 View My Garage	Vader, I'm 100% on the same page as you. __________________ Used Racing Brake 2 Peice Rotors for sale: http://www.camaro5.com/forums/showthread.php?t=344754 Summit White 2014 2SS 1LE Recaros, NPP exhaust, Nav 2010 2SS A6 - sold.

08-19-2010, 10:01 AM	#38
thesnoopster Drives: '17 Fifty SS - '18 Traverse Redline Join Date: Jul 2009 Location: Northern Virginia Posts: 3,616	Hey this is some good information and results! Good Job Guys! I will be keeping my eye on this stuff __________________ 2017 Camaro SS -"FIFTY" Mods: "93 Octane"

08-19-2010, 06:32 PM	#40
markmass TRI-COUNTY CAMAROS Drives: 2SS/RS Oct 2009 Join Date: Oct 2009 Location: Coral Springs Florida Posts: 448 View My Garage	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 __________________ GET-TORQ custom CAM 223/243 LSA113, Full LS3 conversion, 3200 stall Multi-Disk TC from Circle-D, B&M Supercooler to cool that tranny down....1 7/8" Kooks Headers and High flowCats. MACH XL Catbacks. Eibach springs, R2C Performance CAI, powdercoated calipers, Footwell lighting in tune with dome lights, tints, ABL Lighting, ACS T3 ports and ACS Eagle T3 triple LED lighting kit. Heritage grill, Hex vents, ZL1 rockers, ZL1 Diffuser, Quad tips...the list keeps getting longer - whats next??

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08-18-2010, 11:02 AM	#29
cam- Drives: Camaro Join Date: Feb 2010 Location: Toronto Posts: 69	Nice work

08-18-2010, 11:12 AM	#30
kaler Drives: 2011 Dodge 3500 dually Mega Cab Join Date: Jul 2009 Location: discovery bay,ca Posts: 667	Very nice TSP I cant wait to see what the C/H gains are!!!! It looks like I have the same goals as RedJewel2ss(450rwhp) and 383ss(11.5et's)I don't want a cage Jason as soon as you can can you post some idle video's,this car is my wifes daily driver and she wants the most radical idle possible some guys have all the luck!

08-18-2010, 11:19 AM	#31
Jason 98 TA Drives: Camaro Join Date: Apr 2009 Location: Texas Posts: 1,669	Ok here we go guys. This is the perfect comparison for you guys. This is comparing the exact same camshaft with VVT & without VVT (camshaft left at +3) This easily shows how the VVT allows us to advance additional down low & then pull the advance out in upper rpm making a much better powerband.

08-18-2010, 11:40 AM	#33
trudawg660 Drives: 2006 Dodge Charger / 2SS IOM Join Date: Dec 2008 Location: United Kingdom Posts: 1,640	Cant wait to see what Livernois says. because they have been promoting the LS3 conversion.