Calling Stillen SC Owners with upgraded kits

Z&I

Hey Octet !
We're all your friends here ...

Check out the thread started by Mikey1600 "So I just ordered my Stillen SC'r" read it thru to the end.
(Problem with the Stillen kit is that it is not really upgradable to any great extent).

Would be happy to sell you my upgraded and Vortech rebuilt Stillen Vortech V3 with the SI impeller (makes 12 lbs of boost with the 9 lb pulley... less than 200 miles on it ... paid $1795 for the upgrade and installation ... make an offer ... it will work but with the following cautions. PM me if interested.

The upgraded Vortech Impeller is more than enough by itself - but don't do it in conjuction with the 9 lb pulley on a stock motor ... stick with the 8 lb one.
You'll be making between 10~11 lbs of boost.
Even that is pushing it with the stock motor @11:1 CR.

With the 9 lb pulley it will produce too much boost...Ka-Boom.

You will also need to upgrade your fuel system and re-Tune as well.

And then - don't plan on racing it hard...you might be OK with some spirited bursts of speed enough to satisfy, but you won't be able to push the envelope for any length of time.
Definitely add an A/F/R gauge and an IAT gauge as well.

The Stillen design (combining the MAF's before the SC'r and placing the IC after the TB's) greatly limits reliability once you start to add power and heat.

Be careful my friend ...

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octet

Thanks a lot, much appreciated!

ANMVQ

Hey Bob, Don't forget about my chase for 500 WHP and the thread on here. BTW we all know I blew up @ 457 WHP with every upgrade you can do ( Stock motor) ,

Stillens kit is great but no room at ALL for improvement. I even talked to them about a STG2 kit when I was building mine. There were thinking off following me. They might bit only with the Frozen Boost heat exchanger. But the impeller with the 9LBS = bad news :/

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

bullitt5897

For all you modified Stillen Kit owners... I have a few improvements to their kit design that you can do to help make power and be more reliable. I will list them below:

1. Remove the dual intake and replace it with a single 3.5" or 4" cone intake like the G3. Locate this intake filter in the standard G3 location under the cooling plate. Use a 3.5" 45* silicone coupler to get the intake though and into the correct location...

2. Your Charge pipe needs a BOV behind the Charger unit. Followed by your MAF sensors (4" apart and atleast 2-3" from a bend). I would also recommend upgrading the Charge pipe Diameter to 3".

3. Frozen boost Intercooler

4. Coolant upgrade

5. Upgrade your coolant tank to a larger unit.


By doing these things we can negate a lot of the issues with the kit and make the kit more reliable for higher power.

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Shop Cars: 2013 318whp Nismo VspecII 370z *SOLD*, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054

ANMVQ

Yea but for that, I look for a GTM kit :/.. To do all that isn't that bad but you'd have to convince Stillen to sell you their kit with out the manifold. An they wont do that as I couldn't even get them to sell me a kit with out that "joke" of a heat exchanger.

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

Z&I

Yeah Mike ! --- 'The Quest' for 500 ! .::. --- Somehow it just didn't work out how we thought it would!
I talked with Stillen a few times and they were pretty tight lipped tho they did hint that they may be entertaining the thought of an upgraded kit.
But then again, they want to maintain that 50 State Carb Legal status.

You can order that 9lb pulley straight from Stillen but you need to sign a waiver ... last I heard they were also working on a tune for that pulley.

The Frozen Boost heat exchanger was a good tip ... but still needs an upgraded circulating pump to go with it.

Seems never ending ... BTW : My car is STILL in the shop

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bullitt5897

There are several good condition used G37 GTM kits on myg37!!! and for less than $5k!!!

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Shop Cars: 2013 318whp Nismo VspecII 370z *SOLD*, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054

Z&I

These are SC'r kits ?

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bullitt5897

Yes stage 1 kits go for ~$3500-3800. Stage 2 kits go for $3800-$4000. They sell pretty fast though... Just keep an eye out!

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Shop Cars: 2013 318whp Nismo VspecII 370z *SOLD*, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054

nomodsjk

This is a great thread

TheTripleC

So here's a question which I haven't really seen any specific info about on here: If you want to get the most out of the Stillen kit by upgrading the impeller and pulley, would upgrading the internals be enough to handle the extra boost or would you need to pull the motor and do some serious machine work..?

Z&I

Building the motor (internals : rods, pistons, head bolts, etc) should be #1 on your list if you plan on making some serious power... It's your money well spent.

I speak with 100% Perfect Hindsight.
.....

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TheTripleC

Cool man, thanks! That's kinda what I figured. The next question would be: Once the internals are upgraded, what's the threshhold for PSI then? From what I've read, 11psi is the somewhat risky limit on a stock motor. Curious how much more PSI the engine could safely handle once upgraded. I'd love to do both the impeller and pulley upgrade on mines. I would obviously upgrade the cooling system as well..

TheTripleC

Okay, looked around a bit more and it sounds like once the internals are upgraded, the stock engine can handle way more psi. I guess that means even more boost upgrades

Z&I

Hey TripleC,

Check out the .: "Forced Induction Finished Builds" :. thread here on this forum.
It will give you an idea as to what others have done.
It can get costly and time consuming though, so set yourself a target goal for performance and also a budget.
Once you start pumping up the power you may also find that you will need to upgrade other things as well.

Good to ask questions - Good Luck on your build !!!

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