I swear i did search about this a lot but wasn't able to find and answer.

I'm doing an intake manifold and throttle body swap on my C5 Z06 (Ported Fast 92 with LS2 TB) to "unchoke" my stoker setup with improved heads and valvetrain. So apparently the stock C5 Z06 air bridge / air duct / air intake / can still be a restriction. Please correct me if i'm wrong. I would hate to get one of those aftermarket CAIs like Vararam or K&N. I want to keep my stock looking engine bay.

I catched a thread where someone installed a C6 Z06 air intake assembly in a C5 but it requires using the LS3 card style MAF. I don't want to mess with that so i'm wondering if anyone might know if the stock LS2 air intake assembly will fit in the C5.



I like it because it uses the same LS6 MAF and it even has PCV fitting in the acordeon so i don't have to drill or glue anything as required with the stock LS6 air bridge. Also it has the correct opening size for the LS2 TB and it is designed for a larger displacement engine than the LS6. And finally it will keep the stock looks i want.

Extra note: Some will tell me to just go for the Callaway's Honker but i have two problems with it: The MAF is located so close to the TB that i don't see a way to adapt the PCV hose. And as this is a cold air intake, it requires cutting the radiator shroud and in my city i see a lot of rain and large puddles sometimes. I don't want to take any chances of enjoying a hydrolock.

 

You're going to have to re-tune your MAF sensor any time you change your intake setup (location, tubing size, MAF replacement, or filter style). You shouldn't have any issue changing to a card style MAF. They're cheap, and MAF data exists a plenty (every LS3/7 C6), any tuner can plug the data in and get a great baseline.

 

You're going to need a retune adding a fast 92 and ported tb to a stroker as it is. A C6 Z06 intake is cheap, and all you need to run it is a cheap conversion harness. I ran one for 2 years and loved the benefit vs cost

 

Sounds like a lot of work to achieve 8 HP you'll only see on a dyno.

 

Yeah, you both are right. It looks like the C6 air cleaner is less of a hassle. And i just noticed that the acordeon for such intake already has the PCV fitting. Also it is a much more simple air box than the LS2. However the Z06 air cleaners available on ebay are not in good shape. I might have to get an LS3 air cleaner and just remove the resonator box and cap the hole.






The thing is that i have invested a lot in engine internals, and my dyno numbers and 1/4 mile numbers are still very low (below 400, and 14 sec.). So i'm doing all of this to make my last efforts to unleash whatever HPs are being held by my stock intake system. I expect to get from the Fast 92, LS2 TB and C6 Air Cleaner much more than 8 hp. At my altitude (8500 ft above sea level) it is hard and expensive to squeeze ponies from N/A engines.

 

How is the resonator box attached to the airbox... does it detach or all 1 piece?

 

To be honest, i don't know. I have read in several threads that people in base C6s eliminate this resonator box but it is not specified if it just comes out or is a single piece and they have to chop it. I think it might be an attachment because i guess a single mold for the whole assembly is very complex and expensive.