Which is the best sleeper FI setup??? I was thinking about getting a C5 and putting some kind of sleeper forced induction setup along with full exhaust/intake/tuning/etc...Which is the quietest along with retaining the stock hood??? let me hear your suggestions.

 

TTiX twin turbo or LPE twin turbo are the front runners if you're looking for a sleeper, in my opinion. You can retain the stock hood, and both kits have the turbo slung low to the most you'll notice is aftermarket headers/manifolds. Both setups also look stock or nearly stock when you pop the hood.

 

I heard those TT kits are real expensive and arent really meant for stock bottom ends....what is the best setup for a stock bottom end?

 

Depends how you look at it. There are *many* people who run TT's on stock bottom end cars without issue.

Cost is relative. Is $11-13K expensive?

Mark

 

If you want a true sleeper, build a stroker/heads/mild cam motor. With high flow cats and Z06 Ti exhaust, they won't know till it's too late.

 

I built my car with the goal of keeping it a sleeper. I think I've done a good job, IMO. My car visually looks stock with the exception of the chrome Z06 rims and Borla cat-back......and it's as quiet as a normal Vette until under boost. I think all ProChargers sound a little different on different cars....my D1 is very quiet....barely a whisper. I've hid all of my gauges as well.....I can roll around with the windows down and when the average squirrel in his "Slobra" peeps over and sees no gauges, he assumes it's a stocker........ may the fun begin.

I've raised more than one eyebrow, most recently with an MTI 427 ZO7 car......he was absolutely speechless.

See sig for mods.

-Jason-

 

Mark's post above is right... figure about $11-$13k for a TTiX kit installed. The LPE kit is substantially more but includes more (heads, cam, etc.). Both kits are fine for a stock bottom end, as long as you don't get greedy with the boost.

You'll be hard pressed to find other FI kits that have as much stealth and power potential. Again, the PTK kit appears to be making good power, but it's obvious once you pop the hood. May not be an issue if you're only worried about what the average person would see from outside of the car.

Busa, out of the 10 or so Procharged cars I've heard, only one of them was quiet. It was a D1 -- you could still tell the car was supercharged, but the whine was substantially quieter than the whine on my D1. Procharger builds these blowers differently somehow, but they won't admit to it. When I asked them in the past why some units were quieter than others, they claimed ignorance. At a minimum they have to be sourcing some of their internals from different shops but they wouldn't indicate one way or another. The point is, going with a Procharger is short of a crap-shoot in terms of how much noise you'll get. Maybe the Paxtons will be different?

I guess the other avenue you could go is to look into a Vortech supercharger. They are quite a bit less expensive than turbos and I think they have a few different trims that are relatively quiet. Maybe some of the Vortech guys on here can chime in?

 

Absolutely - just don't turn the boost up too high - oh, and good luck with that one!

For reference - the LPE TT Stage I is 18K installed. If that is too much - go TTi or even cheaper, go with and ECS or A&A blower.

 

ProChargers definitely don't qualify as sleeper material.

Mark

 

Yep, I've heard a lot of other D1's and P1's....and they all seem to be significantly louder than mine- I've always wondered why? In any case, I'm glad I got a "quiet" one. There's no way you could ever hear mine at a stop light.....and if you don't hear it then, it's too late because 9/10 of em will be behind me

 

I'm only speaking from my personal experience. I agree that not all ProChargers are quiet

 

Even the quiet ones wouldn't qualify as a sleeper. That isn't a criticism. Centrifugal blowers have a very recognizable sound. Kinda like turbo BOV's - there is no mistaking them.

Mark

 

Remember A&A and ECS are switching head unit vendors. Vortech owns Paxton and allot of their helical gear technology has migrated to Paxton. So quite running superchargers can be expected.

If you want stealth opt for Vortech, they are very quite and barely audible at idle, then noise goes away through midrange. After that you start hearing compressor impeller.

Mike

 

Only if you get the st ( ?? ) series. The other ones are loud as hell.

Mark

 

Sorry forgot to say SQ (super quite) series.

Mike

 

When i first fired my D1, i thought it was to loud and started freaking that I got a bad one. Before I completly lost my mind, I had a D1 Mustang on the dyno and it was just as loud if not more. Personally, i love the noise, worth every penny becuase it keeps me out of light to light racing. Also my "boost inside" decal fends off many would be racers. My insurance thanked me for a loud head.

Brian

 

The TT route is a good choice and keeping in the 500RWHP+ can be had quite easily, but can be pricier than a supecharged package when done properly with a good set of turbo's. The LPE packages are the best for sure as far as a readily available package. The TTiX is a decent kit which can be modified to the LPE standards, but will in the end rival it in cost to do so.

On the supercharger side of things, we built a 2004 Z06 with an A&A Procharger kit with a P1SC 4 rib setup making 10-11 pounds of boost. The package included a small blower cam (218/226 115), stock heads w/ dual springs, Forged flat tops pistons, forged connecting rods, stock fuel system with BAP, stock exhaust manifolds, stock cats & H-pipe, stock titanium exhaust. She put down 606RWHP and 517RWT and with the stock exhaust setup and small cam is very identical to stock. The P1SC has a slight sound at idle and is quiet cruising. This package runs $15,995 and includes the above components plus a gauge package, SPEC Stage 3 clutch w/ aluminum flywheel, install and full in house tuning. This car with the stock wheels, tires and brakes is about as stealthy and lethal as it gets. This car will be in Corvette Enthusiast magazine next month or the one after also. Go to a D1SC and the stealthy component kind of goes away.

Hope this info helps.

Mike Norris

 

A Vortech SQ is Quite......if it is not SQ...I don't think you'll fool too many people. Check my Vid Links in my sig!

 

Sounds like you're wanting a TTi Stage I. There should be some, a buddy of mine for one, that'll be moving up and willing to let it go for around the mid $4000's. You'd never know it wasn't stock except for the BOV inbetween shifts.. which, is just as hell.

 

what kinda power can u put out on a stock bottom end, on a TTi Stage I kit?


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