Calling Stillen SC Owners with upgraded kits

ANMVQ

agreed with above, I was seeing 9+ a little more on the 8 PSI pulley I did the impeller upgrade only and was just over 12 PSI BOOM . 3 days

Stillen Kit is good for only Stock pulley and PSI 8-9 if you go over that you asking for trouble.

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JWillis72

The 7AT is rated for 300trq, mine is at 311 at the wheels with no signs of trouble but I don't think that will last forever.

brucelidat

Where did you get the info that our trannys are rated for 300trq?

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JWillis72

It's in one of the threads that are at the top of this section. I think it was dreamer who found it from the manufacturer of the 7AT.


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theDreamer

RE7R01A: 400Nm (295lb)
RE7R01B: 600Nm (442lb)

The 1A is what we have in the 370z, the 1B is in a couple of the infiniti models.

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JWillis72

I hope they went on the safe side by 30-40lb!

theDreamer

One of the things that I never found was, in what gear is this rating for.
We already know 5/6/7 gears are very weak under boost so it is advised to stay out of boost with those, but 1-4 what are the true thresholds for each.

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JWillis72

I go in to 5th 2 time a lap at Sebring at WOT and while the shift is slower it hasn't broke yet. I'm not saying it's a good idea if you are worried about braking it but I'm really not, I kind of want to try the Level 10.

gussyturbo z

Hey man after viewing all of these would you run hfc? I run test pipes but I feel like I need to go back to hfc.....

octet

Hi guys,

Can anyone please give me a direct link to the 928 impeller and the 9lb pulley for the Stillen kit?

Is the impeller this one?

928 Motorsports - Porsche® 928 Performance Parts - High-Performance Impeller for Vortech® S-Trim Superchargers

If so, do we need a CCW or CW version?

Can the 9lb pulley be found on superchargersonline?

Thanks a lot!

ANMVQ

I looked at he 928 one also but the Vorteh upgrade was the same and less $$ at the time and the upgrade was to the SI . If you use this with the 9LB pulley I HOPE you have extra $$$ laying around for a motor. :/

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octet

I can see many people are using the 928 upgraded impeller with the 9lb pulley. Can you post a link to the Vortech impeller please?

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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ANMVQ

Theres no link to the upgrade you have to call them. An if you see many people running 13 PSI on the Stillen SC and on a stock motor your lucky. All the ones I have seen have popped including mine.

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JWillis72

Good luck with that combo, your playing with fire.