Stillen supercharger and engine fail. :(

ANMVQ · 09-22-2013, 12:48 PM

Will for sure glad you Stayed FI and with Stillen

Baer383 · 09-22-2013, 12:52 PM

Quote:

Originally Posted by ANMVQ

Will for sure glad you Stayed FI and with Stillen

elperuano · 09-22-2013, 08:30 PM

Built motor with a Stillen kit???? Lol dejavu.

370Zsteve · 09-30-2013, 06:48 PM

Quote:

Originally Posted by TopgunZ

Serious bummer. What #'s were you putting down?

See good in bad. Now you can take her up to 700+ whp!!

but on the other end you'll have to ditch that stillen if you want power your shortblock can handle.

Isn't this the second motor only that has let go?
Werent they both on stillens?

Kind of an odd question since the Stillen SC is not on the high end of the power equation. I'd understand if we were talking about a 600whp TT...

370Zsteve · 09-30-2013, 06:50 PM

Quote:

Originally Posted by Dantrag

Had upgraded pulley and belts, at 8lbs was making 409whp which is where the phail happened. Have previously dyno'd 490whp at 12lbs. Having z withdrawal already.

And there is the problem right there.

elperuano · 09-30-2013, 07:28 PM

Quote:

Originally Posted by 370Zsteve

And there is the problem right there.

I'm not seeing the problem. Plenty of people run high boost. Im at 12 lbs too. No problems at all.

370Zsteve · 09-30-2013, 07:42 PM

Quote:

Originally Posted by elperuano

I'm not seeing the problem. Plenty of people run high boost. Im at 12 lbs too. No problems at all.

My question is has the tune been altered when boost is varied between 8-12lbs

And 12, imo, is in the upper range of what I would consider a reliable setup with stock internals. Maybe you are lucky, who knows. All We know for sure is that someone else had rod failure at the same boost that you are running.

Someone also mentioned another failure, I wonder what boost he was running...

Chuck33079 · 09-30-2013, 07:48 PM

Quote:

Originally Posted by 370Zsteve

My question is has the tune been altered when boost is varied between 8-12lbs

And 12, imo, is in the upper range of what I would consider a reliable setup with stock internals. Maybe you are lucky, who knows. All We know for sure is that someone else had rod failure at the same boost that you are running.

Someone also mentioned another failure, I wonder what boost he was running...

The amount of boost that's safe to run varies based on what is making the boost, right? 12 psi on a Stillen sc isn't the same airflow as 12 psi on a turbo kit. Maybe we need to look at cfm rather than boost.

Driftomodachi · 09-30-2013, 07:51 PM

whatever boost keeps the a/f ratio in safe parameters?

beauz · 10-02-2013, 07:22 AM

12 psi is 12psi. Doesn't matter what form of induction u are running.

Chuck33079 · 10-02-2013, 07:25 AM

Quote:

Originally Posted by beauz

12 psi is 12psi. Doesn't matter what form of induction u are running.

No, 12 psi out of something that doesn't flow a lot of air is very different than 12 psi out of a huge compressor. If you blow 12 psi through a cocktail stirrer, you're moving a lot less air than 12 psi through a garden hose.

Mr&Mrs · 10-02-2013, 05:59 PM

Only if you can produce the air to fill that garden hose

Quote:

Originally Posted by Chuck33079

No, 12 psi out of something that doesn't flow a lot of air is very different than 12 psi out of a huge compressor. If you blow 12 psi through a cocktail stirrer, you're moving a lot less air than 12 psi through a garden hose.

Chuck33079 · 10-02-2013, 06:00 PM

Quote:

Originally Posted by Mr&Mrs

Only if you can produce the air to fill that garden hose

Don't worry about that. I'm in sales.

Mr&Mrs · 10-02-2013, 06:04 PM

Quote:

Originally Posted by Chuck33079

Don't worry about that. I'm in sales.

Mr&Mrs · 10-02-2013, 06:07 PM

To hopefully put some help into this talk about boost pressure. GTM told me it does not really matter what boost you run as long as you AFR and cylinder pressure is in check. Every motor is different so with that in mind if you are comfortable hitting your max cylinder pressure, do it.

It has been close to a year since I talked with them and don’t remember what their comfort zone is for the pressure. You would have to contact them or someone that knows more than I do.

09-22-2013, 12:48 PM	#31 (permalink)
ANMVQ A True Z Fanatic Join Date: Mar 2011 Location: Framingham MA Posts: 2,732 Drives: 2014 Q50 AWD Rep Power: 19	Will for sure glad you Stayed FI and with Stillen __________________ 14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

09-22-2013, 08:30 PM	#33 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 28	Built motor with a Stillen kit???? Lol dejavu. Mr.Squeeze, Baer383 and EVOHUNTER like this.

10-02-2013, 06:07 PM	#45 (permalink)
Mr&Mrs A True Z Fanatic Join Date: May 2010 Location: Tampa Posts: 4,194 Drives: RZ34 Rep Power: 21873	To hopefully put some help into this talk about boost pressure. GTM told me it does not really matter what boost you run as long as you AFR and cylinder pressure is in check. Every motor is different so with that in mind if you are comfortable hitting your max cylinder pressure, do it. It has been close to a year since I talked with them and don’t remember what their comfort zone is for the pressure. You would have to contact them or someone that knows more than I do. __________________ Project Z <--Click - Check out the link too many mods to list!

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