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Forced Induction Turbochargers and Superchargers..Got Boost?

SC question

Old Mar 24, 2004 | 06:55 AM
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Default SC question

Can you pull the sc belt? For example for long distance travel, and not do any harm? Or is ok just to drive it...long distance travel as in a 5hr drive?
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Old Mar 24, 2004 | 09:08 AM
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Default Re: SC question

Originally posted by myGthang
Can you pull the sc belt? For example for long distance travel, and not do any harm? Or is ok just to drive it...long distance travel as in a 5hr drive?
What system...ATI,Vortech,Stillen?
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Old Mar 24, 2004 | 09:08 AM
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I asked Vortech that exact question earlier and they said you can but the SC itself would create a severe airflow restriction. I would just leave it on during the trip since the cruising RPM should not be high enough to create any real boost and cause any effect on MPG.
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Old Mar 24, 2004 | 10:01 AM
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I've left my belt off my blower for 2 weeks once, no problems at all. Even had a few runs with the lack of air.
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Old Mar 24, 2004 | 12:00 PM
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Depends on the belt you are talking about. The serpentine belt on the Vortech supercharger also runs some other stuff.

--Steve
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Old Mar 24, 2004 | 03:27 PM
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Default Re: SC question

If your car is tuned for a supercharger and you take the belt off, your car will run really rich. So you performance will be waaay worse than stock and MPG will suck anyway. It would be better and safer for the engine to keep it on.

Originally posted by myGthang
Can you pull the sc belt? For example for long distance travel, and not do any harm? Or is ok just to drive it...long distance travel as in a 5hr drive?
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Old Mar 24, 2004 | 06:45 PM
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Default Re: Re: SC question

Originally posted by basam350z
If your car is tuned for a supercharger and you take the belt off, your car will run really rich. So you performance will be waaay worse than stock and MPG will suck anyway. It would be better and safer for the engine to keep it on.
Thats not true on the ATI kit and im sure its not true for the Vortech kit either. The ATI kit will only add the extra fuel if it detects boost.
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Old Mar 24, 2004 | 07:16 PM
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Default Re: Re: Re: SC question

Sorry dude, you are off. The Vortech is tuned by a piggyback computer called the splitsecond box. This has fuel and ignition maps that are not boost dependent.

ATI adds fuel only for boost? I wasn't aware the Aeromotive unit did this. It would still run a little rich because of the HUGE SUPERCHARGER IN THE WAY OF THE INTAKE!


Originally posted by Enron Exec
Thats not true on the ATI kit and im sure its not true for the Vortech kit either. The ATI kit will only add the extra fuel if it detects boost.
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Old Mar 24, 2004 | 07:21 PM
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Default Re: Re: Re: Re: SC question

Originally posted by basam350z
Sorry dude, you are off. The Vortech is tuned by a piggyback computer called the splitsecond box. This has fuel and ignition maps that are not boost dependent.

ATI adds fuel only for boost? I wasn't aware the Aeromotive unit did this. It would still run a little rich because of the HUGE SUPERCHARGER IN THE WAY OF THE INTAKE!
Yes, the Aeromotive box adds fuel depending on boost. No, the ATI kit doesn't run rich, the MAF knows how much air is going in so the ECU only adds the appropriate fuel. I have a wideband O2 and I checked it out. Plus there is a bypass valve that allows air to be sucked through bypassing the supercharger and the intercooler. It is a small diameter though so top end sucks.

I take my belt off occasionally for long trips because it seems like a waste of wear on the supercharger etc.
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Old Mar 24, 2004 | 07:32 PM
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Default Re: Re: Re: Re: SC question

Originally posted by basam350z
Sorry dude, you are off. The Vortech is tuned by a piggyback computer called the splitsecond box. This has fuel and ignition maps that are not boost dependent.

ATI adds fuel only for boost? I wasn't aware the Aeromotive unit did this. It would still run a little rich because of the HUGE SUPERCHARGER IN THE WAY OF THE INTAKE!

I was told the Split second box does read off boost?
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Old Mar 24, 2004 | 07:48 PM
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Default Re: Re: Re: Re: SC question

Originally posted by basam350z
Sorry dude, you are off. The Vortech is tuned by a piggyback computer called the splitsecond box. This has fuel and ignition maps that are not boost dependent.
FALSE FALSE FALSE. Both of those maps are based on RPMs versus Boost.

Again... the SplitSecond box maps ARE INDEED BOOST DEPENDENT. Do I need to send you a screen shot?

--Steve
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Old Mar 24, 2004 | 08:04 PM
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Default Re: Re: Re: Re: Re: SC question

From Splite seconds website.
I stand corrected:

"Two three-dimensional map tables defined by absolute pressure and RPM"

Zimbo, how do you like this thing?


Originally posted by zimbo
FALSE FALSE FALSE. Both of those maps are based on RPMs versus Boost.

Again... the SplitSecond box maps ARE INDEED BOOST DEPENDENT. Do I need to send you a screen shot?

--Steve
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Old Mar 25, 2004 | 01:26 AM
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Just to hammer a point down I have ran both cogs off at different times (front and rear) while waiting on belts and it ran fine, just as mentioned you need the serpantine.

I sure am glad I resolved that belt nightmare man what a long road that was.
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Old Mar 25, 2004 | 01:39 AM
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Nice to see you in the 12s, Max. Nice to also know that those SCs are that fast.

How hard is it to remove the belt for like a long drive or something and how long does it take??
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Old Mar 25, 2004 | 04:37 AM
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Literally takes me 30 seconds to remove the belt. It will probably take longer if you use your tensioner jack screw (I don't), like maybe 2 minutes.
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Old Mar 25, 2004 | 09:03 AM
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Originally posted by jesseenglish
Literally takes me 30 seconds to remove the belt. It will probably take longer if you use your tensioner jack screw (I don't), like maybe 2 minutes.
I know you are doing it to decrease wear on the SC, but do you think it helps mpg any?? And also, how long are SCs supposed to last til an overhaul or rebuild??
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Old Mar 25, 2004 | 09:45 AM
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It might help MPG a little bit, but probably not much more than you'd lose from using the A/C. That's a good question. I should call ATI about that. If I had to guess, I'd say 50,000 miles, but it's just a guess, could be 1 million miles as far as I know.
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Old Mar 25, 2004 | 02:58 PM
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All this talk about taking off the belt for trip is meaningless, because you know the second you take it off a EVO 8 will pull up on you left side and a Z06 will pull up on the right side. Than what. "Wait, I gotta put my belt on!"



Originally posted by jesseenglish
Literally takes me 30 seconds to remove the belt. It will probably take longer if you use your tensioner jack screw (I don't), like maybe 2 minutes.
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Old Mar 26, 2004 | 05:05 AM
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Originally posted by basam350z
All this talk about taking off the belt for trip is meaningless, because you know the second you take it off a EVO 8 will pull up on you left side and a Z06 will pull up on the right side. Than what. "Wait, I gotta put my belt on!"



Yeah, that happened to me this weekend. I was heading to Phoenix and I stopped in Tucson. I was at a stoplight and what pulls up next to me? An SRT-4, He was revving me and I soooo wanted to smoke him, but I probably couldn't even smoke a Civic with my SC belt disconnected.
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Old Mar 26, 2004 | 08:01 AM
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The STILLEN Supercharger Systems all have bypass valves that open when boost is not needed. IE highway cruising or non-acceleration situations. This lets the motor run as a normally aspirated motor would and uses little (if any) additional fuel.
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