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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 05-01-2010, 08:24 AM   #1
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Another L99 cam question....VVT!

It seems most people are going with the L99 - LS3 conversion. However, I am intrigued about the supposed wider torque curves with VVT.

About a month or so ago it was a wait and see approach as more companies were, supposedly, working on vvt cams. Are there any new updates about when more cams or info will be available on vvt cams for the L99?

Also, I've decided to go the cam route later this summer. Are there any reputable places to get it installed and tuned near the Florida panhandle( Ft Walton Beach) area?


Thanks before hand!
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Old 05-01-2010, 11:49 AM   #2
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I believe I read that Mast Mototsport had stage 1 and 2 VVT cams available. However, the reason so many go LS-3 conversion is with VVT you always deal with a cam that must compromise. Not so much with LS-3 aftermarket cams. Good hunting.
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Old 05-01-2010, 11:55 AM   #3
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Same thing a lot of us with a L99 are thinking.

Kinda hard to decide to go with the LS3 conversion or wait and see what can be done with VVT Cams.
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Old 05-01-2010, 11:57 AM   #4
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Sitting on the fence with this one as well.
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Old 05-01-2010, 01:07 PM   #5
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Going the LS3 route looks to be simpler and the easiest to install (less chance of it being done wrong). It may also be a more reliable(?) option. I don't want to give up reliability when doing a cam since my warranty is trashed.
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Old 05-01-2010, 03:32 PM   #6
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Quote:
Originally Posted by SS-screamer View Post
Going the LS3 route looks to be simpler and the easiest to install (less chance of it being done wrong). It may also be a more reliable(?) option. I don't want to give up reliability when doing a cam since my warranty is trashed.
I dunno about easiest, it is sure a large cost of $$ though.
My estimate is running about $4k-$5k counting labor to do the full LS3 conversion. At that rate I could just slap a Super charger on for more power.
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Old 05-01-2010, 03:43 PM   #7
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I'm pretty sure Mast has had VVT cams for a while now.
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Old 05-01-2010, 04:01 PM   #8
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I wanted to add the cam to my L99 but Ject hit it right on the head. Its like 4 or 5k to swap to the LS3 style. And for what 50 hp. At that point it said f'it and got a tvs2300 which was only 2k more and netted 550/550 at the wheels. Much more than 50. I keep asking Jannetty about a vvt cam but he keeps telling me that its not worth it unless you go LS3.
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Old 05-01-2010, 04:34 PM   #9
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Mast Motorsports

http://www.byunspeed.com/product_inf...ducts_id=12439

http://www.byunspeed.com/product_inf...ducts_id=12440
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Old 05-01-2010, 04:38 PM   #10
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Fastlane has a good one... Keeps DOD and all.... Sounds nasty too.
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Old 05-01-2010, 05:20 PM   #11
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A local bone stock L99 did a base of 320 rwhp. He did the usual CAI, headers, exhaust, and tune. Now at about 352rwhp. He did the LS-3 conversion and went to 438rwhp as I recall. That is a 118 rwhp bump from stock and plus 86 rwhp bump from bolt ons. Also on a cam that idles calmly at 650 rpm and drives stock. Guys, that is very significant IMHO. If you would be interested call ADM Perf for his cost as I think it is about $3400. He has done several other L99 to LS-3 conversions with Magnason TVS 2300 blowers. rwhp has ranged from 545 to 590 rwhp depending on owners specs regarding heads and cam choice. I know it is not cheap but believe me you get much more than 50 HP as was mentioned in posts above. Now, ask ALL these L99 owners if they miss the VVT and AFM? Hell no.
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Old 05-01-2010, 05:59 PM   #12
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Quote:
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My estimate is running about $4k-$5k counting labor to do the full LS3 conversion. At that rate I could just slap a Super charger on for more power.
Hey Ject, would you do the conversion for $3400 and spend a night or two in DFW area while it takes place?? Yes, I am just trying to tempt you a little. It is great to have choices with regard to our cars. And, I am pleased that none posting in this thread have mentioned "Will I lose my Warranty"?
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Old 05-01-2010, 06:22 PM   #13
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SC is nice but you gotta love that muscle car lope from a cam.
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Old 05-01-2010, 07:04 PM   #14
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Quote:
Originally Posted by Sack Rat 2SS View Post
A local bone stock L99 did a base of 320 rwhp. He did the usual CAI, headers, exhaust, and tune. Now at about 352rwhp. He did the LS-3 conversion and went to 438rwhp as I recall. That is a 118 rwhp bump from stock and plus 86 rwhp bump from bolt ons. Also on a cam that idles calmly at 650 rpm and drives stock. Guys, that is very significant IMHO. If you would be interested call ADM Perf for his cost as I think it is about $3400. He has done several other L99 to LS-3 conversions with Magnason TVS 2300 blowers. rwhp has ranged from 545 to 590 rwhp depending on owners specs regarding heads and cam choice. I know it is not cheap but believe me you get much more than 50 HP as was mentioned in posts above. Now, ask ALL these L99 owners if they miss the VVT and AFM? Hell no.
Will agree that it is more than just a 50hp bump, but $3400 is a little low. Also add in the other parts that were done to get 438hp and you are creeping in on the blower price. 438rwhp is nice, but for around $1000 you can go over the 500rwhp mark. Trust me when I say I have been looking at all the options and for the money the blower route is the best bang for the buck. The best for that nasty hot rod sound tho is always going to be the lope of a good cam. Nothing IMHO beats that sound that I so love, but hp is the name of the game and the blower route looks to be where I am heading.
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Old 05-01-2010, 07:58 PM   #15
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That lope is like music to a car lover's ears. People hear it and automatically know what's up.......but, the blower definately gives you the biggest bang but for alot of bucks.

I already have kooks LTs and a Roto-fab cai so I could probably get close to 500 hp with a blower but for around 7 Gs. Or drop $3500 to 4000 and get close to 450hp with the lope to boot. It's a tough decision.

Which one would last the longest may factor into it.
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Old 05-01-2010, 08:02 PM   #16
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I agree with you guys with the lope of a nice cam but that lope isn't going to get you a 10 second slip. The blower will.
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Old 05-02-2010, 04:56 AM   #17
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Quote:
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I agree with you guys with the lope of a nice cam but that lope isn't going to get you a 10 second slip. The blower will.
We'll see ls3s in the 10s cam only.
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Old 05-02-2010, 10:04 AM   #18
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Originally Posted by Sack Rat 2SS View Post
A local bone stock L99 did a base of 320 rwhp. He did the usual CAI, headers, exhaust, and tune. Now at about 352rwhp. He did the LS-3 conversion and went to 438rwhp as I recall. That is a 118 rwhp bump from stock and plus 86 rwhp bump from bolt ons. Also on a cam that idles calmly at 650 rpm and drives stock. Guys, that is very significant IMHO. If you would be interested call ADM Perf for his cost as I think it is about $3400. He has done several other L99 to LS-3 conversions with Magnason TVS 2300 blowers. rwhp has ranged from 545 to 590 rwhp depending on owners specs regarding heads and cam choice. I know it is not cheap but believe me you get much more than 50 HP as was mentioned in posts above. Now, ask ALL these L99 owners if they miss the VVT and AFM? Hell no.
Wow i think at $3400 the L99-Ls3 Conversion would definitely be worth it because I live in California and I havent seen a decent Cam that will let me come even close to passing a smog test!
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Old 05-02-2010, 10:07 AM   #19
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That lope is like music to a car lover's ears. People hear it and automatically know what's up.......but, the blower definately gives you the biggest bang but for alot of bucks.

I already have kooks LTs and a Roto-fab cai so I could probably get close to 500 hp with a blower but for around 7 Gs. Or drop $3500 to 4000 and get close to 450hp with the lope to boot. It's a tough decision.

Which one would last the longest may factor into it.
Might as well get the blower sir lol. It will give you the most bang for your buck and you could always save up for both and labor might be cheaper because they are already taking your engine apart???
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Old 05-02-2010, 06:34 PM   #20
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I ordered a custom spec VVT cam. 600 lift 222/230 with LSL lobes. Should work very well from everything I've been told and read about camming one of these up. Theres some really impressive builds over at tech on a few engines running L92 heads with cams in this range. So even though you can stuff a larger cam than Im running in without VVT once you cross the 230 duration threshold you really start to lose street driveability. Sure it will be faster and pull like a raped ape up top but it wont be very pleasant to cruise and will likely buck and surge at low speeds.

The main issue with the L99 and cam swaps isnt really the VVT its the AFM or DOD or whatever its called because of the dang lifters. They need to be changed which means the heads must come off and its a lot more work.
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Old 05-03-2010, 08:22 AM   #21
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The main issue with the L99 and cam swaps isnt really the VVT its the AFM or DOD or whatever its called because of the dang lifters. They need to be changed which means the heads must come off and its a lot more work.

So even with cam phasers you still need to change out the dod lifters and such?
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Old 05-03-2010, 08:41 AM   #22
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So even with cam phasers you still need to change out the dod lifters and such?
Yep, the lifters are part of the problem. After conversion you can up your redline to LS-3 along with tranny shift points depending on where your replacement cam and valve springs makes power. Easy to change valve springs with the heads off.
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Old 05-03-2010, 08:46 AM   #23
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I made 58rwhp with L99 to LS3 conversion Cam install....
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Old 05-03-2010, 09:10 AM   #24
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I went with mast stage 2 and kooks headers/exhaust on an l99 w/o DOD elim
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Old 05-03-2010, 10:37 AM   #25
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I went with mast stage 2 and kooks headers/exhaust on an l99 w/o DOD elim

What kind of numbers did you come out with?
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