So just ordered my Stillen SC

mikey1600

Been running Berk HFC's for about 2.5 years and never had a CEL, still get this disabled? as I'm guessing the HFC's will burn out eventually anyway?

Z&I

A word of caution ...

Upgrading the Vortech Impeller Upgrade to SI trim and then combining it with the Stillen 9 lb pulley can give you too much boost for a stock 11:1 motor.

Thats what I did ... it produced 11.9 lbs of boost @ 6900 RPM ... 483 whp : 378 tq.

The motor didn't hold together very long ... blew on the first 1/4 mile pass.

Am now in the process of having the long block built ... an expen$$ive le$$on

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future370zzz

What AFR were you tuned for? I'm assuming pretty aggressive and close to 12.0. What was the temp at the track during the run? What octane gas used?

When the temps heat up or heatsoak, detonation plus the location of the MAF sensors = no good.

Either run higher octane than when you dyno'd to prevent detonation or keep it out of WOT during hot conditions.

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Z&I

There were probably a few factors involved causing my motor to grenade.

AFR target was tuned for 14.7 as per Vortech specs ... AFR guage showed more towards 14.4 at idle ...
Track temp was 55 degrees ... car was tuned on and for 93 octane.
MAF sensors were upgraded but still in the same location as the initial Stillen install.
Wasn't able to get a clear answer as to the MAF sensor tube size (uh-oh) ... was experiencing some cold start hiccups and some throttle hunting attributed to the 1000 lph injectors, but was assured the car was good to go and these were only 'minor' glitches and would be tweaked out.

Too late now ... not happy, but planned to do the internals next year when the wallet recovered.

The motor is now at Import Parts Pro (Kyle Puckett)
Kyle is extremely pleasant, super helpful, and a 1/4 mile racer himself.

Planning on taking advantage of the premature re-build to eek out some more performance.

Hopefully will get to get'r back to the track this fall ...

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mikey1600

not upgrading the impeller, it's too expensive here in Aus for the gains. Maybe down the track when I change to E85, might be an option to do at the same time.

Thanks for the heads up though, appreciate it.

Z&I

oops ... sorry

Went back and read the thread again ... somehow I got the idea that you were upgrading the impeller as well.
Hope I didn't steer the thread off topic too much.

I was real happy with my Stillen SC'r and drove the car daily for 3 years (even thru the winters here in NJ).
Tracked it a few times too.

Now I'm intersted in getting it in to the mid 11's.

Have a great time with yours !

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mikey1600

All good! keep us updated with your build as well, would be interesting to see the extra boost through the unit or even the upgrade to the V7.

I'll be going e85 eventually, have 3 stations ranging from 5-15 mins from my home, it is my daily but having stations that close and the 370z tank is quite big shouldn't be a problem really.

mikey1600

btw Z&I, when the motor is built, are you going to take it even further with the kit or just run it as you had it when your motor died?

gussyturbo z

What about nitrous? Anybody run nitrous with this kit yet? How does it perform with it?

ANMVQ

Stock block sure BOOM . You can't even run the impeller and pulleys on the stock block too much PSI

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

Z&I

aaarrrggghhh ... you did tell me so !!!
I did try to express my concerns about the 9 lb pulley ...

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Z&I

Will be taking advantage of the unplanned re-build for sure ...
The motor is now at Import Parts Pro in Texas (Kyle Puckett)
Have had some very informative and pleasant conversations & emails with him.
Going with their Stage 2 Long Block and the 9:1 Wiseco pistons ... will probably max out the Vortech V3 with the upgraded impeller for now.
Might need to upgrade to the V7 later.
Most supporting work is done - just waiting on the motor.

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jwick

Didn't realize they built motors. they doing the install too?

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'10 G37T 6MT Graphite/Graphite - BP - G37T Build

Z&I

IPP isn't doing the install, just the rebuild ... However, my motor is getting the grand tour of the countryside courtesy of the trucking company !

My car is now sitting in my driveway with it's intestines strewn about the interior.

With a 5 week wait for the motor to make it's way back to NJ ... the shop elected to flat bed it back to me to conserve shop space until the motor gets back from Texas ...

I sure hope it doesn't develop a southern drawl down there in Texas ...

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Pro4Jackster

Do you think 9:1 pistons are the best choice for a supercharged motor? I'm no engine builder, but the ones I've seen built at JTran with lower CRs lose a lot of power. And with a supercharger, you cannot just turn up the boost to compensate like on a turbo. You are almost maxed out on CFMs with the Stillen Kit as is. Just something to think about. You could be giving up a substantial amount of power.

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Jtranbuilt '08 Z [Jtran PT7075 Single - Fujitsubo - Transgo - Wilwood - TE37SL - BC Racing]