Stillen supercharger long term reports

Sh0velMan

Oh, and you'll probably need a re-tune, because likely your tuner has used fuel compensation to get around weird readings from your MAF sensors, so they'll need to kinda start over once you stabilize MAF response.

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Osiris

Actually, when we were doing some data logging....he mentioned that all the AFR settings were correct, it just gets all wacky when its fluctuating up and down. But when it is not fluctuating, all settings are where they need to be. Now i just need to measure the inlets....ugh, have to take off bumper

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irondoc

Gotta take off the d*mn bumper to make any changes anyway. Please post your tube ID/OD dimensions when you have them.

Osiris

i'm terrible with acronyms...ID/OD? But yes, i'll post them...just not sure when i'll get around to taking bumper off.

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Sh0velMan

Inside and Outside Diameter.

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irondoc

Thanks for answering for me.

Sh0velMan

Your MAF may report different voltages after the air has been straightened, though, and those voltages may change differently through the RPM range.

That's why he would have used fuel compensation to even it out.

Or it may be identical, who can say without trying? haha

Edit:
To clarify what I mean, lets say that @ WOT you start at 1.2v around 2k RPM and by redline you're reading 4.6v.

Then you straighten out your airflow and now you're getting 0.9v at 2k RPM and by redline you're at 4.8v. Because the turbulence compressed your delta V over the rev range, and now that the turbulence isn't there, you're getting accurate flow numbers.

But because your tuner set up your fueling tables based on that 1.2v-4.6v spread, you've got inaccurate fueling data throughout the rev range. See what I mean?

(this is all theoretical, numbers picked at random)

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Osiris

also, if you are communicating with Stillen...can you see if they have the dimensions off hand?

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Nut_N_Much

Okay, here it is. My SC is on the table, wiating for boost pulley.
2 Inlets on the Y:
Inside Dia 2 1/2
Outside Dia 2 7/8

Single outlet on the Y
Inside Dia 2 5/8
Outside Dia 3

Reducer Boot from Y to SC intake:
2 1/2

SC outlet:
Inside 2 3/8
Outside 2 7/8

Intake tube from SC to Throttle Bodies:
From SC side 2 5/8
From (2) throttle body side 2 1/2

Of note, the center of the MAF Mount is 2 inched from the K&N filter. If you need more let me know! Hope this helps..

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irondoc

Thanks for the info I decided to contact saxonpc the website for the honeycomb to get their advice on the right size to order. I will let the forum know when I have a response.

irondoc

Just noticed this photo of the AEM ETI Intake System. It has the same proximity of the MAF socket to the airfilter as in our Stillen SC kit.
Gotta wonder if any one with the ETI Intake System can comment on whether it has the same troubles as in our kit.

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ETI Intake System.jpg (10.4 KB, 39 views)

Osiris

i've already ordered a pair...64mm 3/4 inch thick. They should be arriving this week.

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irondoc

Nut_N_Much -
So, is your kit brand new? If the kit is just out of the car for mods, what year did you order it

Nut_N_Much

Mine was used and sat around for 2 years on some guys shelf.. It is a V3 SC the older ones are V2's. My Y pip is completely open.

I have looked at some cast aluminum 8 inch tubing. I was thinking of chopping it in half and welding 4 inches to each side to extend the intake side of the Y. KellyeFields made a nice shield our of some flat sheet Aluminum, I might do that to if the factory shield isn't working. Will bring it to the Dyno.. I cut out the fins inside of the front bumper. I got nice access into the that area.

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