VVT/DOD engines in a 4th gen.
VVT/DOD engines in a 4th gen. Other than correcting the issue with the reluctor can I just run a L99 or an aluminum 6.0 with VVT with my stock computer without doing a cam swap? It seems like my computer would run it even though it doesn't have any way to operate the VVT/DOD. Also don't those motors have some kind of high pressure oil pump or something?
Teching In
Joined: Jun 2015
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So you are dropping an L99 in a vehicle that previously had another motor? L99 being a DOD type engine with a DOD valley, 8 DOD lifters, a DOD tune, and lastly a DOD cam.
If you are wanting to do a DOD delete on that motor the cam has to be replaced.
If you are wanting to do a DOD delete on that motor the cam has to be replaced.
I was basically wondering if I put a L99 in my 2000 camaro is ther anyway I could just leave it stock and just retune the ECU. If my ECU doesn't call for the DOD to be activated then it should just run as a normal stock motor correct?
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
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From: So.Cal.
He's asking if the Gen4 engine will run on his Gen3 PCM (which has no provision for DoD or VVT)...
other than taking care of the CKP and CMP reluctor differences (swap or run LPE converter), will it run...?
it probably would since DoD is not active unless the ECM activates it, and and the VVT parked position un-retards the cam (I'm not 100% sure on this point) which positions the cam close to straight up...
so it should run.
other than taking care of the CKP and CMP reluctor differences (swap or run LPE converter), will it run...?
it probably would since DoD is not active unless the ECM activates it, and and the VVT parked position un-retards the cam (I'm not 100% sure on this point) which positions the cam close to straight up...
so it should run.
This is exactly what me and a buddy are going to do on a 2000 SS, we are dropping a L99 and doing a DOD delete and putting a VVT cam with the 6spd auto. We are using the 2012 camaro PCM TCM on it though. Keep us posted on how it goes for you.
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Well, I was suppose to go pick up that motor a couple of days after this post but the guy came up with some lame excuse and said it was sold without him knowing. This is the second time this exact thing has happened when I've dealt with guys from this town. If you're from New Orleans I'm just gonna pass on dealing with you anymore. Too much BS!
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Man I swear I'd get rid of DOD. Too problematic in my opinion. Just save up and delete it. It's much easier while it's out of the car. VVT however, people are having great success with leaving that in. A few vendors on here have some great cam options. In my opinion, the issue is finding someone that can tune it.
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
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From: So.Cal.
Man I swear I'd get rid of DOD. Too problematic in my opinion. Just save up and delete it. It's much easier while it's out of the car. VVT however, people are having great success with leaving that in. A few vendors on here have some great cam options. In my opinion, the issue is finding someone that can tune it.
He wants to run a VVT/DOD engine from a PCM that does not support those... i.e. they will be deleted by virtue of PCM not supporting those.
I understand that. However, plenty of guys are running VVT on a 4th gen ECU. There is a difference between inactive and being deleted. DOD being inactive isn't necessarily going to get rid of the DOD lifters, which is why I said delete it.