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I know I have been quiet, but thats how you know i've been to busy having fun :icon17: |
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I'm trying to get my interior put back together (lazyness on my part) and i'll hit the dyno soon and give results. I have about -2.0 camber in the rear and I know the cold weather (30-40's) doesnt help at all, but man...2nd and 3rd gear is just brutal! Just from the manner in which I pull on my friends 335i who ran a 12.4 @ 112 tells me I'm probably trapping around 115-118. The car is quick and with some sticky rubber its going to be fun! Contemplating on getting RaceLogic... |
sorry to hear about the family issues danny
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I am glade to hear about the performance part of your car and please keep us updated. Frank |
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Forgot a couple of times just how tight I have to get these couplers, blew a couple of them open at WOT and that hasnt happen since my scooby days...YAYAYAY forced induction! I do have the ports drilled out for meth, but I just havent activated it yet. Probably wont until after the dyno. Make sure everything is 100%, which seems to be that way already. |
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MAF sensors have really strange readings when there is a bend just before the sensor. |
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That should shed some light. By the way, the only difference with the setup then what the picture depicts is that actual supercharger location (driver's side, not passenger) and the fact the intake has a Y-pipe for two air filters and that's where the MAF sensors plug in. |
I wonder if the mixing of two different intake streams measured by two different MAFs in the Stillen system is causing any of the idling issues that a few people are reporting.
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^^^hehehehehehehehe
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Frank |
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like someone said, get a dyno already! I gotta go get mine too now that it makes 2 more psi than it when I dynoed last. |
I think i may be getting a dyno this monday. Lets keep our fingers crossed
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Cataylitic fondue
Just a short update: I melted my Stillen HFC's during a track session. The cats had about 8k miles on them, 3k with supercharger. about 10 minutes into second session, after a redline shift, back to 5k, then off the throttle and "pop!" like a backfire, then the engine note changed and power was way down. I shut it off, called it a day, talked to the guys at Stillen (it threw a cataylst insufficiency code) then took it to a local mechanic. He took it apart. Both cats were melted. One core broke loose and was serving as a cork in the HFC's outlet.
I put the stock cats back on it and it runs fine. Maybe a little down on power, but not a lot. Has a less macho engine note too. :-( Why do I post this? Because leaning out the a/f ratio is the most likley reason to get a cat hot enough to melt. Granted, I had prolonged, high rpm, full throttle use... but add the lean condition and it's gonna get real hot. The concerning part to this is that on the dyno, my car is pretty rich under boost all the way to redline. Is there something in real world driving - like fuel washout under high lateral g load - thats causing a lean condition? Just throwing it out there..... |
Depending on how rich it is, that can cause the cat to melt as well. The unburned fuel hits the hot core and it causes the fuel to combust. Having this happen for a prolonged period of time makes the cat hot enough to melt.
This happened to a lot of guys running Berk and other brand's HFC's on the 350, now most people just run test pipes on FI applications. |
You can get test pipes for like $180 now. Let Stillen know and tell them you want replacement TP's :D
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i smell new tune and smaller pulley's with TP's
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Stillensuper cat killer!
Just kidding hahaha! Talking about cat's. My car exhaust smells so bad and funky in the morning start up's. Like it's super super rich so bad that i have to get out of the car till it warms up. |
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Test pipes are not really an option for me. I live in the city with the worst air pollution in the US. I'm a professional and the city I live in is not that large, so I'm relatively high profile. All it takes is one angry person driving behind me with burning eyes from lack of cats to make a call to CHP and my supercharger fun is all over. The 10 hp loss is worth the 30x reduction in emissions. |
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Frank |
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On a side note you probably won't have to smog till the year of 2012-2013 depending on the year of your car. |
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The most difficult thing about CARB inspections is the visual section: most of these FI cars with a good tune and functioning cats will pass the sniffer just fine however the visual inspection will bite you. I found someone who "forgot" the visual on my big turbo '96 Saab and the car passed the sniffer but it is a bit of a pain to worry about finding someone who won't do visual.
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About my tune: It is a "custom" tune. Stillen tuned it, but then that tune is probably being used as their canned tune for anyone who's running the 9 lb pulley, using 93 octane and has headers and cats. It's definitely different than their 91 octane, 8 lb pulley, stock exhaust tune. |
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Frank |
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On the flip side, with stock cats back on it, it's not eye watering from exhaust fumes anymore, even though the A/F ratio is the same. I've never owned hi-flow cats before, but now I 'get it'. Stock cats have like 2" diameter inlet/outlet and 10 pounds of catalyst material in them. The hi-flow cats have like 2 1/4" diameter with 2 pounds of catalyst in them. The "hi-flow" part is more that there's not really much catalyst in them rather than being a better design with less resistance, but same catalytic efficiency. |
with the stock cats back on with a really rich mixture will kill those cats.
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wow, that was a lot of reading. i really wish most of the bs was not in there. i learned to skip over it at about page 100 or so. It seems that most of the issues have been resolved and the cars are running good. Are there any cars with custom tunes that are having any problems? it all seems that the canned tunes were having problems and that was so you can keep you warranty so if you dont care about the warranty and went with a custom tune how are the cars doing?
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As far as I know the guy's that has a full custom tune is running good and making very decent power. Osiris was having some issues even on a custom tune, he probably got that taken care of already. |
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My car is running strong still. Only issue I have is with the crazy temperature swings we're having here in Miami. One day I drive at 40deg then the next time I start the car its almost 70deg. I think the car freaks out and thinks theres something wrong so it throws a cel right when the car first turns on. I drive it a little while and the light goes away. Only happens when weather goes from cold to hot and not the other way around. Very punctual. If the temp difference isn't big then no problem, its only when there's a good 30deg diff.
Happening to anyone else? SC'd or not? |
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Frank |
This kit is the biggest regret in my life!
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I would like to add my two cents to this thread I am new to the forum and just picked up a 370z. I have be paying attention to this thread and the dyno numbers that people have been getting from this kit. I had a vortech V3 supercharged 03 350z that made more power than most people with this kit so far. I am not trying to start a war here but I know this blower can make more power,because its no where near being maxed out.
Im just waiting for stillen or someone to push this kit Here is my dyno of my 350 3.12 pulley all bolt ons |
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