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Old 05-23-2013, 09:35 PM   #1
brettsimons
 
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Cam Help in L99

Hey guys,
So I really want to do a cam and after talking to my brother and Joe at Powertech Performance, I was convinced that the best option for my scenario (don't have thousands of dollars to pay someone to replace lifters/remove afm) was to get one of the AFM/VVT cams from Texas Speed, Comp cams, or Mast. Now I basically just have these questions:
  1. Does anyone know how different the AFM 1, 2, and 3 cams are? Like how much more aggresive is 3 compared to 2 and 1?
  2. Does anyone know where to find any dyno numbers for each cam or what the general increase in HP and torque is? I looked everywhere and couldn't find anything and if I did, it was just the dreaded red x
  3. Do I need to replace the push rods? I figured I do but I just want to make sure...
  4. Lastly, do I need to replace the springs or anything else in the valve train?

As always I love this forum and thanks for the help
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Old 05-23-2013, 09:46 PM   #2
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Old 05-23-2013, 09:51 PM   #3
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vvt good afm bad. ditch the afm tune aaaannnnnddddd internals.
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Old 05-23-2013, 10:07 PM   #4
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Sorry but heads still need to come off bud. I wouldn't even bother doing a cam in an L99 unless it was a MAST SS cam or a vvt3 or wait for rhino79's cam coming out. And a matching TQ converter is a must.
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Old 05-23-2013, 10:11 PM   #5
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Quote:
Originally Posted by litle88 View Post
Sorry but heads still need to come off bud. I wouldn't even bother doing a cam in an L99 unless it was a MAST SS cam or a vvt3 or wait for rhino79's cam coming out. And a matching TQ converter is a must.
Little nows what he's talking about!

He helped me big time on doing an LS3 conversion and cam and components. Saved me big$ and it ended up right!
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Old 05-23-2013, 10:11 PM   #6
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You still have to replace 8 of the lifters along with all the valve train parts my build cost alil less than 5gs including l99 to ls3 conversion with a triple disk converter.
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Old 05-23-2013, 10:17 PM   #7
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Originally Posted by tys2010camaro View Post
Little nows what he's talking about!

He helped me big time on doing an LS3 conversion and cam and components. Saved me big$ and it ended up right!
Thanks TY! So how's the car?
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Old 05-23-2013, 10:19 PM   #8
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I have vvt2 if you want to check it out.

Stay far away from arm cams and replace the arm lifters. Tsp is coming out with a vvt4 and if I was doing it now I'd go with that.

As far as replacing parts, you can get the kit from tsp that replaces most the stuff you mentioned and you will want to replace stuff. It's basically the ls3 conversion with most the parts you change out but still leaving vvt
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Old 05-23-2013, 11:54 PM   #9
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Thanks for the help guys! I know AFM sucks :( but I at least have it tuned out! The only thing is I'm getting 3.91 differential gears installed next week and so it's setting me back a pretty penny since I can't do it myself with my brother. I looked at the DIY Cam install and that is something me and my brother can do pretty easily but replacing the lifters is supposed to be hard and there is not DIY guide that I've seen to help keep us on track :( I really wish I could replace the lifters but unless I can do it myself, the cost of labor is just too much. But a VVT Cam is definitely what I'm aiming for if I can convince my brother to help me replace the lifters

Anyone know of a good lifter replacement guide or AFM removal guide?
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Old 05-24-2013, 01:36 AM   #10
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The lifters come off fairly easily just take off the heads and walla there they are.
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Old 05-24-2013, 06:12 AM   #11
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Quote:
Originally Posted by brettsimons View Post
Hey guys,
So I really want to do a cam and after talking to my brother and Joe at Powertech Performance, I was convinced that the best option for my scenario (don't have thousands of dollars to pay someone to replace lifters/remove afm) was to get one of the AFM/VVT cams from Texas Speed, Comp cams, or Mast. Now I basically just have these questions:
  1. Does anyone know how different the AFM 1, 2, and 3 cams are? Like how much more aggresive is 3 compared to 2 and 1?
    Yes 3 is the more aggressive one, the rest are not worth it IMHO.
  2. Does anyone know where to find any dyno numbers for each cam or what the general increase in HP and torque is? I looked everywhere and couldn't find anything and if I did, it was just the dreaded red x
    Look in the L99 dyno sticky and search there.
  3. Do I need to replace the push rods? I figured I do but I just want to make sure...
    YES, with the correct length and you'll know what size when you choose the cam, the company will let you know what the correct length is with their cam (as long as you don't mill the heads)
  4. Lastly, do I need to replace the springs or anything else in the valve train?
Of course you do, a set of Brian Tooley platinum springs, and do the comp trunnions upgrade along with a katech C5r timing chain and deleting the chain tensioner with an Ls2 dampner.

As always I love this forum and thanks for the help
Your welcome.
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Old 05-24-2013, 01:25 PM   #12
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I also forgot tsp list Dyno numbers on their website but its tricky to find. There is a very small icon you can't really make out what it's supposed to be above the description of each cam. Click that
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Old 05-24-2013, 01:43 PM   #13
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Quote:
Originally Posted by Nightmare2012 View Post
You still have to replace 8 of the lifters along with all the valve train parts my build cost alil less than 5gs including l99 to ls3 conversion with a triple disk converter.
Under 5k? Thats nice man.
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Old 05-24-2013, 02:02 PM   #14
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Why not do the LS7 or LS9 cams? GMHTP did a low buck swap of am LS9 cam on an AFM 6.2 with the LS3 springs,chain and cover and got 50hp 39tq.
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