Stillen SC Build 500 WHP?

jezeka777

I was doing some research and thought of an explanation why reducing timing would gain more horsepower .

Naturally aspirated versus force induction

A normally aspirated engine doesn't use a compressor or nitrous oxide to enhance combustion. Since the fuel-air mixture in its combustion chamber is less dense, it takes longer to ignite. Vehicle manufacturers typically set the timing at a default that will lower engine temperatures and reduce emissions. Advancing this setting increases the engine's horsepower by firing the plugs earlier in the compression cycle. If your plugs fire too early in this cycle, you get so much pressure and heat in the cylinder that the fuel-air mixture can auto-ignite and damage your engine. Turbocharged, supercharged and nitrous-injected engines are already running higher pressures and temperatures than normally aspirated engines, so the consequences of advancing your timing can be more severe. Retarding the timing on these engines compensates for the denser fuel-air mixtures by firing the plugs later in the compression cycle. This prevents premature combustion and allows the engine to run at peak performance without destroying itself in the process.

ANMVQ

Count down begins, The SC is on a UPS truck on its way back to me, Just made my APT for my return for the 25th, Hope 11 days is long enough to get everything together, So excited,

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

jezeka777

How much are the cog pulleys and how hard are they to install?? will stillen ever know you have had them installed if you send back the blower for warranty repair??

Are there links the the exact pulleys I would need to order??

Sorry for 21 questions. Just trying to educate myself.

Thanks in advance.

Mr.Squeeze

Yes Stillen know that you switched to the cog pulleys and void your warranty.

ANMVQ can pass on the cog part numbers and information I gave him .

You can also read this for more information
Custom Stillen 370z supercharged

Keep in mind if your a person that is real worried about warranty then doing the cog set up is not for you . It is something that is complicated.

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Driven Motorsports Single Turbo 7675 T4 1.32 A/R 995WHP 780TQ

ANMVQ

The pulleys are not hard to install, But you will need a tune or retune.. I got all my parts from Auto Anything- Which came strait from Vortech, An my Stillen Warrenty is up in DEC but now is VOID, Becasue I upgraded the SC, But Vortech warrties it for 1 year from now. I Blew Stillens warrenty with custom tune anyway.. But really I only pick up 40 WHP on Stillens tune and pick up 72 more with the custom tune, Total was 114 WHP total is what I picked up from my NA bolt on # of 298 WHP !

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

jezeka777

I'm not worried about warranty sense I'm supercharging my car. Just like to know my options when **** happens. Lol
Please Pm the info. Thanks. Well appreciate.

ANMVQ

Pm'd man

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

shaun66

lololol

jezeka777

i was just counting down the time till some one brought up GTM.. your products are good BUT YOUR STILL NOT CARB APPROVED...Plus I don't have to bribe the nearest auto shop pass inspection... just saying.. thats the only reason i didn't go for GTM...

jezeka777

SAM if you can sell me a CARB approved kit with those high numbers then you got yourself a deal..

SAM@GTM

Even if our kit was CARB approved, I still would not be able to offer you what you are looking for. The minute you buy any CARB approved kit and you make any changes to it whatsoever (Custom tune, different pulley, etc.) that approval is void along with the warranty. In order for you to keep the CARB approved status and warranty, you cannot mod the kit. From your previous post in another thread, you are already talking about modding the kit so your point is moot.

I'm not really sure what the regulations are in New York, but if the regulations are like a lot of other states that only check the OBD II or even a sniffer test, then our kit will pass with flying colors. Even in California, they are talking about new regulations that will be testing cars through OBD II only and doing away with the sniffer test altogether.

The bottom line is that you can either buy a kit that makes 500whp out of the box, or buy a different kit that you have to mod further to maybe (and that's a big maybe) make 500whp.

Sam

ANMVQ

Agreed with Sam on this, Again the GTM kit or Stillen kit should pass the inspecting Sniffer test as long and as long as you have you cats you should be fine( ALL THO there was a goofy thread here that said it you have tune you would FAIL).. GTM's kits are proven OTB to make high 4'-500WHP, An again I almost went this way but the "Dealer offered my Factory warranty stay- if they installed it and I used Stillen's kit- The dealer is a Vendor for them). Yes I have this in Writing- But to stay on topic, GTM and Sam's kit's are proven 500WHP kits, Mine will be a UM lets see. But this something I did to be differnt and really wanted the Factory warranty,- Especially casue I have a 2011 and when this started it was under 9k miles.

But if I had the choice , I proably would have went GTM- But the had no X kit whem I went FI also..

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

Rusty

You did what you wanted and needed to do. You had your reasons. Nobody can fault you for that. Enough said. I'm waiting to see how this turns out. Because I may follow the same route, or wait for the twin SC's from GTM.

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浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
http://www.the370z.com/members-370z-...o-journal.html

WILD370Z

Sorry but my car is in the shop getting the automatic rebuilt were do the maf's sit at the moment and were is the suggested spot that they need to go i have to install my bov soon and was thinking about getting it all done then

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Custom yellow respray-custom interior-lights-20 inch wheels-x force full exaust-stillen sc-928 impeller-carbonetics 2.0 differential-34 row oil cooler-auto cooler-2.8 pulley up grade

ANMVQ

Funny cause I was waiting for same also, But what dyno do they use? Dynojet? So my 412 would have been more like 450ish WHP and 330's WTRQ.


Also let say?? 1 psi will get you approx 6.8% extra hp over a naturally aspirated setup (again, theoretical).

330HP VQ ( 6.8 %) is 22.4*9 PSI =201.96 HP over stock- 531HP so 412-430 Dyno depending and some other Var's WHP. So adding 4 PSI( 13 PSI) to my set up should net me 621HP /20% drive loss Should be 497 WHP , (again, theoretical).

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,