i am looking into doing a custome s/c setup. i would like to know what supercharger would probably be the best for the 2.2 ohv. '96. i've heard that the RSM kit is a bit dissappointing but i don't know if it's because of the s/c they used or not. thanks
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http://www.helpelijah.com
Where did you hear that from?
The Vortec supercharger used on the RSM kits, puts out a nice boost number.
i heard that kit isent all that great. I think someone said that you have to drive up there to get it. they putt it on
slamcav wrote:i heard that kit isent all that great. I think someone said that you have to drive up there to get it. they putt it on
They're just like any other company, they want to make a sale so they'll listen to you. I bargained with them and had it shipped. Trust me, talk to them, ask questions about sales, and suck up, then see what they say. And RSM isn't a bad company; their customer service is great and Nelson is a good guy to deal with.
Blown.
Sean McAfee wrote:i am looking into doing a custome s/c setup. i would like to know what supercharger would probably be the best for the 2.2 ohv. '96. i've heard that the RSM kit is a bit dissappointing but i don't know if it's because of the s/c they used or not. thanks
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Well that depends on who has the car and what their expectations were. If their expectations were higher than what the outcome was, yeah, they are going to say it was dissapointing.
Now, as far as doing a "custom" supercharger setup, you can't really. First of all, there are 2 types of superchargers, centrifugal and roots. The centrifugal style supercharger is the one that Vortech makes and the roots style is what you would normally see on GM cars that are supercharged like the 3800 S/C motor for example. You wouldn't be able to do anything really custom because Vortech doesn't sell their superchargers seperately (atleast to the public). Even if they did, the only real thing that you could somewhat change up is maybe different injectors, bov or something little like that but I would hardly call that really doing custom work. You wouldn't be able to do a roots style supercharger because there isn't one available for the OHV motors.
You might have the wrong thinking going on like "The turbo guys do custom turbo kits, why can't I do a custom supercharger kit?". A turbo setup has much more parts and you have a ton of different options you could go with. Just in turbos alone you could get various types of turbos from big to small, that spool extremely fast to slower, ball bearing to non-ball bearing etc etc.
You wouldn't be able to do anything like that with a supercharger it is limited to running off a belt and you are limited to manufacturers that make superchargers. Also, atleast with roots styles, they have to be application/motor specific or atleast share the same specs in certain areas.
I hope this gives you a bit more insight. If you have any further questions, just ask.
www.kronosperformance.com / 732-742-8837
Actually you could have a sheetmetal intake fabbed up to bolt the roots style S/C but why?
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what i read was that the RSM kit doesn't really kick in until you hit peak RPM's. that's not what i'm looking for. i don't want to go turbo because i just did my whole exhaust system and i don't want to redo it again.
i was on Vortech's website and the way they had it set up it seemed like i could buy them right there. i think maybe i could order one either way because i work for toyota so i may be able to get one that way.
plus i can find them used on ebay and was wondering which ones i could look for. maybe like a used s/c kit from a honda or similar sized engine and get the mounts made here and stuff.
yeah i was looking for the centrifugal style supercharger not the roots. i was talking to one of the local chevy dealers and they were saying that their kit for the OHV engine when it comes out is gonna be $3500 or so. trying not to spend that much.
i think custom was a bad choice of word on my part. by custom i simply meant getting the fabrication work done locally as oppose to buying it premade.
i think the real basis for my orignal question was: RSM's kit - if it only reaches performance at peak RPM's is that because of the s/c they chose or the pulley or something else altogether.
http://www.helpelijah.com
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i think the real basis for my orignal question was: RSM's kit - if it only reaches performance at peak RPM's is that because of the s/c they chose or the pulley or something else altogether.
Well of course that's gonna seem that way. Remember how superchargers work...they are connected to your crank through a pulley. The more the crank spins, the more the pulley spins, which will turn the belt and spin the blades in the supercharger to create airflow. So think about it, the faster your crank is spinning, the higher the rpms you're going, the more and faster your supercharger is going to spin to create airflow. So if there is more airflow being created at 5000 RPMs than 3000 RPMs, you're going to have more power in the higher RPMs and depending on your powerband, you will peak in higher RPMs.
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what i read was that the RSM kit doesn't really kick in until you hit peak RPM's.
Well as far as "kicking" in at peak RPMs, I wouldn't say that. What I wrote just before explains why it may seem like that but you are actually building up power the higher the RPMs you reach but that's not saying that you have crap power till you reach 5000 RPMs, it's just continually building the higher you reach.
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i don't want to go turbo because i just did my whole exhaust system and i don't want to redo it again.
If you don't want a turbo setup cause you have to change your exhaust setup, than I think you're worrying more in the wrong places. Even if you got a supercharger, you need to have motor breath better on the exhaust side, so it would be suggested to upgrade your exhaust setup anyways.
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i was talking to one of the local chevy dealers and they were saying that their kit for the OHV engine when it comes out is gonna be $3500 or so.
I think that guy was confussed. If you said to him "the 2.2 motors" he probably thought you were talking about the 2.2 ECOTEC motors. GM is not releasing any OHV superchargers and right now GM is all about ECOTECs and that's it so even the 2.4 guys aren't getting any play anymore from them.
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i was on Vortech's website and the way they had it set up it seemed like i could buy them right there. i think maybe i could order one either way because i work for toyota so i may be able to get one that way.
plus i can find them used on ebay and was wondering which ones i could look for. maybe like a used s/c kit from a honda or similar sized engine and get the mounts made here and stuff.
Even if you could get the supercharger itself, you still need the pulley and the belt atleast, which unless you find someone selling a kit or something, you more than likely won't find seperate and won't get it from Vortech. If you go on Vortech's site and look up your application (Cavalier), they will refer you to RSM.
www.kronosperformance.com / 732-742-8837
yeah i know what you mean. i think what i was more concerned about was that i wouldn't feel any boost until the high RPM's.
i think i may end up just saving up and talking to RSM to send the kit to me.
thanks for answering my questions.
oh and my exhaust is upgraded to 2.25" with OBX 4-2-1 header , etc, etc. i know i should go closer to 3" but i only want to run about 6 psi boost. not sure how well 2.25" piping would work with a S/C tho. i don't know if i could bring myself to pay to have it done all over again after paying $700 for it the first time around. I would have waited and got a turbo but inspection was coming up and my old exhaust was in pieces.
i'm planning on building my internals either way so i hope to maybe be close to 150-160 hp by the time i get a S/C either way.
http://www.helpelijah.com
Sean McAfee wrote:i think the real basis for my orignal question was: RSM's kit - if it only reaches performance at peak RPM's is that because of the s/c they chose or the pulley or something else altogether.
That's actually the point. UNlike a supercharger, a turbo can begin to make nearly full boost at a very low rpm and continue to make that boost all the way to redline, but as a result the stress on the cylinders and such at that lower rpm, can be more than the engine can handle, especially stock. A supercharger is more linear in that it only makes as much power as it's designed to make at a given rpm, which allows the motor to use the boost it's given more efficiently. Look at a dyno chart of a stock motor, then the same motor with a suprcharger, and you'll notice that the trend is that the blower gradually increases power over the entire rpm band. It's a way to increase the output of the motor while also keeping cylinder pressures at a level that even a stock engine can handle. And here's something else to consider: A turbo kit can be had for a lot less than a supercharger, but the turbo will require even more parts and will, in the end, cost just as much if not more, than a supercharger capable of making the same power.
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thanks for answering my questions
It's no problem, that's why I'm here
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oh and my exhaust is upgraded to 2.25" with OBX 4-2-1 header , etc, etc. i know i should go closer to 3" but i only want to run about 6 psi boost.
3" isn't necessary...2 1/2" would be perfectly fine.
www.kronosperformance.com / 732-742-8837
The V9G Trim Vortech sold with the RSM kits is an awesome blower and their bracketry kit fits up perfectly. Get the RSM blower kit.
I was a retard, and now I'm permanently banned.
Spotabee Racing (The Fake Z24) wrote:The V9G Trim Vortech sold with the RSM kits is an awesome blower and their bracketry kit fits up perfectly. Get the RSM blower kit.
I'd have to second that. Its a great blower with a good amount of power. What everyone said above is pretty accurate and all I can do is say that I agree.
Blown.
