STILLEN 370Z Supercharger System - Announcement!!!

LateralG'z

This is looking great, definitely sounds like a tune issue, would agree it sounds like a rich condition

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2010 Mag Black, 6MT,

Jordo!

Actually, if they didn't mess with accel enrichment, but added boost, my guess is it's probably skewing very lean on tip in...

Although ideally you want it to quickly arrive at the target AFR for the next map cell, as a general rule of thumb, skewing rich will tend to feel less laggy than skewing lean.

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Enjoy it. Destroy it.

Phimosis

You can see on the graph it is rich on tip in (sorry its hard to read, I snapped a photo of the dyno sheet with my iphone)....Around 11.0:1 then quickly leans to around 11.6:1 and hangs there throughout the rev range. At 5,000 rpm this tune is only making 30 hp more than my baseline run. How rich does it really need to be at those low rpms? The supercharger is not making much boost yet.

The stock curve (which makes great power) is at 15:1 at tip in and then quickly goes to 13.5:1, then trends down to 13:1 by 5,000 rpm, then 12.15 at redline. 14:1 is going to make the most power, but runs hot. Most sports cars run around 12.5:1 for power and economy. Tuners go into the 11:1 range for quench and to keep cylinder temps down. They use it for safety, but it hurts power output, fuel economy and emissions. Having an 11:1 A/F ratio at 3,000 rpm when the S/C is making 1-2 pounds boost is counter productive. Having 11:1 A/F ratio at 8,000 rpm and 10 pounds of boost is a really smart idea.

Chris@FsP

There is no acceleration enrichment adjustment on Osiris. Enrichment / enleanment is all controlled by the ECU in the background. If your K value is adjusted correctly, throttle tip in should not really be affected when going to larger injectors on a boosted setup.

RCZ

right, but is that tuner controlled or is it the ECU doing something beyond our control?

Sounds to me like it would happen at tip in even if the target was AFR was leaner...

JB-370z

How are the superchargers working out for the guys that got them??? Have not heard much, would love to see more videos for sure.

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ll Baker Tuning ll GTM ll Powerhouse Amuse ll HKS ll Up-Rev ll iForged ll AP Racing ll Pioneer ll SPL ll Bride ll Top Secret ll OS Giken ll
GTM Stage 2 Twin Turboed 370z (First in Texas, Thanks To Baker Tuning)

Kastley85891

Go green and run 12:5.1 flat job done,,, pity there is soo little flexability still with our ECU control

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Boosted V8 hunter
2850 lbs and 375WHP

LateralG'z

Just ordered mine today, will do a right up and vids when done.

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2010 Mag Black, 6MT,

Kastley85891

Noice man, another member to be jealous of

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Boosted V8 hunter
2850 lbs and 375WHP

LateralG'z

Hopefully will have it together by end of next week.

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2010 Mag Black, 6MT,

shumby

i really am surprised that there is a 50 lb-ft differeane in TQ between the still and the GTM kits plus I am only running 6 Psi

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Originally Posted by SAM@GTM
Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living .
Sam

Chris@FsP

Possibly because yours was tuned in house and has a little more aggressive timing than the Stillen's canned tune (which is always going to err on the safe side)?

shumby

ya i forgot that he had a canned tune. Good point.

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Originally Posted by SAM@GTM
Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living .
Sam

LateralG'z

Chris, Did you order mine today? kidding, when will it be here? and when can we start?

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2010 Mag Black, 6MT,

Chris@FsP

Going to order tomorrow