Stillen vs. Smoky: your take on intakes

Endgame

The thing I liked about the TS intakes is that they showed a nice gain across the powerband. The Stillen ones seemed to only produce top end gains.

Am I wrong?

Zsteve

nd for that amount of money I would wait for someone else to buy it and do some numbers for us. And it better have a money back garantee.

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2010 LS3 C6 Silver coupe corvette

semtex

I can't speak for anyone else's results, but my gains from the G3 appear to have been pretty even across the rpm range.

Before:



After:.



It's a little tough to tell because they're not overlaid. Plus it doesn't help that the increments on the y-axis aren't the same. But pick any point on the rpm band. Take 5k rpm, for instance. On the before graph, I was making around 210, maybe? Defn. less than 225 whp. On the after graph, at 5k I'm clearly above 225 whp, it looks somewhere around 233 whp. Even as low as 3500 rpm. On the before graph I'm making just a hair shy of 150 whp. On the after graph, I'm making around 165 whp at 3500 rpm.

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"There are no small accidents on this circuit." -- Ayrton Senna
316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10)
Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

Endgame

Good stuff. THX!

Endgame

is that not what baker nissan did??

JB-370z

I noticed my hks intakes had a funnel like device on the inside of the tubes, does anyone elses have this? Think it might create like a vortex like air flow but not sure. I got 281.72 whp with 231.56 tq on a dynojet with I/E/HFC's not sure if this sucks bad or not.

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ll Baker Tuning ll GTM ll Powerhouse Amuse ll HKS ll Up-Rev ll iForged ll AP Racing ll Pioneer ll SPL ll Bride ll Top Secret ll OS Giken ll
GTM Stage 2 Twin Turboed 370z (First in Texas, Thanks To Baker Tuning)

Zsteve

I think thats called a verturi (spelling?) affect. It is kinda like a funnel to help make the air have more force or something like that.

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2010 LS3 C6 Silver coupe corvette

1slow370

It's actually called an air horn, venturi's are what are used in carburetors and cause a pressure differential. air horns try to smooth the flow of air entering the pipe from the sides to reduce turbulence and increase flow. All the crappy JWT popcharger kits have one. You see them on ITB setups as well.

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Zsteve

Some companies are using venturi style intakes to help increase the velocity of the air as it comes in. Stillen has even used this design before. I dont know if its just another name for the air horn or a different design but they are using it in CAIs. Again just a way to try and increase the velocity of the air.

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2010 LS3 C6 Silver coupe corvette

1slow370

it's just a misnomer for an air horn as putting a venturii in an intake would be a bad idea as they only increase velocity within the are of the venturii once the air passes the venturii section and expands back out it is slower than it was before it entered due to the restriction upstream. It makes a good corporate buzz word though when selling an intake FEATURING PATENTED VENTURII VELOCITY ENHANCERS!!!! The only real place for a venturii is in a carb. Air horns just seek to guide the air's entry path into the pipe to reduce turbulence and increase flow so they don't cause restriction. It really isn't going to cause HUGE gains though. I'd wager that the top secret intake may have a different diameter MAF pipe and it is running much leaner than stock to account for it's power gains. That and foam filters aren't very restrictive because they don't filter well at all personally i fell that if you are running a foam filter you might as well just run a fine mesh stainless drag filter as they both just basically filter out the big chunks.

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JB-370z

I never got a reponse, I was wondering if this is a crappy number. Someone told me it was.

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ll Baker Tuning ll GTM ll Powerhouse Amuse ll HKS ll Up-Rev ll iForged ll AP Racing ll Pioneer ll SPL ll Bride ll Top Secret ll OS Giken ll
GTM Stage 2 Twin Turboed 370z (First in Texas, Thanks To Baker Tuning)

Zsteve

what were your numbers before? Dynos are only good for a before and after reading to see gains as they can be calibrated so many ways, Thats why one can show a high gain for a mod if they really wanted to, they tweek the dyno.

Also not all cars come from the factory with the same power, some more, some less, so you may have gain good amounts but you need the before numbers.

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2010 LS3 C6 Silver coupe corvette

Endgame

So are JB370z's good or not?

G37sHKS

^ why you dont want ur car to be so lean?? I heard that more lean = more power...
and tune will gain some hp while fixing the lean... and yes i love my car to go lean.. so i can tune it and fix the lean and get free more HP

Endgame

I hear ya!!!