2012 ltz turbo 3.6l build - Page 2 - Chevy Impala Forums
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post #16 of (permalink) Old 02-26-2014
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Yeah I've been contemplating on just doing a front mount but I'm worried about having no access for tubing and having to cut into radiator support


I should be getting the manifolds made up on Sunday I'll take pics if I do
why not do a air to water intrecooler?
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post #17 of (permalink) Old 02-27-2014 Thread Starter
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I was saying that on V8s 2.5" crossover is too big. For a V6 it would be monstrous. 2.5" might be an OK size for after the merge, but probably a bit oversized even there unless looking to push the motor hard. Compressed gases are just the compressed and don't take up as much volume so a smaller pipe is appropriate.
Your talking about from the exhaust manifold up to the turbo correct? I'm gonna run 2 in pipe to a 2.5-3in into turbo then all my intercooler piping will be 2.5 in

Then turbo back I'm gonna run 3" out to the back
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post #18 of (permalink) Old 02-27-2014
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Originally Posted by MDLTZ View Post
Yeah I've been contemplating on just doing a front mount but I'm worried about having no access for tubing and having to cut into radiator support


I should be getting the manifolds made up on Sunday I'll take pics if I do

Yeah, some minor fab work may or may not be needed for the rad supports, but you'd be getting 3-5 times more air flow through the intercooler, so it would be well worth it.

BTW, when coming down to the key to making this whole turbo project work with your setup, what are your plans for the tuning? You doing it yourself or getting someone to do that for you? Stock tune is going to do nothing for you in a turbo setup except help blow it up faster... lol

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post #19 of (permalink) Old 02-27-2014
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Originally Posted by volume View Post
why not do a air to water intrecooler?
Likely just reduced cost and complexity issues, though A2W ICs do cool more effectively.

This is going to likely be a lower boost setup and the added complexities of a water pump, extra plumbing hoses and (for best effect if you want to go all out) a trunk mounted ice container may be beyond the scope of what the user looks to want for final results.

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post #20 of (permalink) Old 02-27-2014
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Couple of observations, the earlier aluminum IM is a different port design and bolt pattern, your plastic OEM one will be fine, we boost them to 12-14# no issues.

Intercooler where you have it will do little to cool IAT temps. You must have constant flow through it of unheated air from the front of the car, so really needs to be behind grill or could be remote mounted anywhere it can get cool fresh air forced through it. Even a cooling fan added.

The MAF needs to be at least 6-8" from the TB to prevent error's in the MAF flow readings as the TB blade shuts.

Tuning, Will at Overkill can master that for you...he is awesome and we just finished a 2014 LFX engine single turbo with AWD and mid 400's to the wheels. Owners goal was to spank new Porsche Turbo Cayenne and he did handily. Will made cold start, warm start, and drivability excellent as well.

How are you oiling and doing oil return?

PCV evacuation is critical when your boosting through the IM so ask if you want guidance.

We do all types of FI to the 3.6L DI GM engines and have learned all the nuances and modifications needed to make it work. Good luck and were willing to offer guidance if you want it.

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post #21 of (permalink) Old 02-27-2014
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Quote:
Originally Posted by MDLTZ View Post
Your talking about from the exhaust manifold up to the turbo correct? I'm gonna run 2 in pipe to a 2.5-3in into turbo then all my intercooler piping will be 2.5 in

Then turbo back I'm gonna run 3" out to the back
Stay small on the hotside of the exhaust, after the turbo 3" may be OK but would be wildly overkill for before the turbo.

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post #22 of (permalink) Old 02-28-2014 Thread Starter
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Yes any guidance would be helpful, there is a go tuning specialist near Philly that will tune it he said for about $400.

I most likely will be changing to a FMI

for oiling I was gonna run a sandwich plate and run feed and returns off of that

What do you suggest for pcv evacuation
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post #23 of (permalink) Old 02-28-2014 Thread Starter
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Where is Overkill located?
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post #24 of (permalink) Old 02-28-2014
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Where is Overkill located?
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post #25 of (permalink) Old 02-28-2014 Thread Starter
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Oh wow....they are up in Canada, that's a long drive to get a dyno tune
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post #26 of (permalink) Old 02-28-2014 Thread Starter
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Originally Posted by mdltz View Post
yes any guidance would be helpful, there is a go tuning specialist near philly that will tune it he said for about $400.

I most likely will be changing to a fmi

for oiling i was gonna run a sandwich plate and run feed and returns off of that

what do you suggest for pcv evacuation
GM tuning specialist*

Last edited by MDLTZ; 02-28-2014 at 04:04 PM. Reason: mistyped
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post #27 of (permalink) Old 02-28-2014 Thread Starter
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My goal is 500hp to the wheels but my only and main concern is the 6 speed transmission. ..

Will it hold up to 500hp or more?
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post #28 of (permalink) Old 03-01-2014 Thread Starter
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OK I found the turbo I'm gonna run its a precision 6766 67mm ball bearing turbo and I'm might possibly run up to 10psi not sure yet
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post #29 of (permalink) Old 03-01-2014 Thread Starter
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post #30 of (permalink) Old 03-03-2014 Thread Starter
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UPDATE:

Got everything for build but intercooler piping.

Didn't get exhaust done due to rain/snow. But should have it done this coming Friday or Saturday can't wait.kll have pics taken before it's put back to stock.
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