Hey, i talked to this guy that had a supercharged ls motor in a civic and i told him that i plan to supercharge my car also. He said to email vortech and ask if they could do a custom supercharger for my car since "the prelude intake is somewhat like the gsr intake" and they have vortech superchargers for gsr's. So i just wanted your input on whether or not it would be a good idea to try and get a custom supercharger made or just go with a JRSC? Do you know if this is possible anyway?
Please help!
Thanks!

 

Is jackson or vortech the roots-type blower? One of them uses a design that gives instant boost from idle, the other one must "spool". I think Jackson is the best of the two...stay w/ Jackson, unless I'm wrong

 

Jackson Racing is the roots style, but isnt the best for big gains. JRSC will never make over 275whp. But if your looking for 225whp, then the JRSC is exactly what you want. That is unless you would like to go the nitrous route.

 

Never Say never bud

But yeah man just got with the JRSC if your dead set on a supercharger. Its not worth the extra money to get Vortec to custom make you a SC.


[Modified by NCH22driver, 3:29 AM 12/2/2002]

 

it seems to me that the vortech is like a half turbo/ half SC. It is a SC in design but it has to spool up. wtf?? i mean if you have to wait for boost get a damn turbo or get the instantaneous( albeit weaker) power of the Jackson.

 

Is that true though about the vortech having to spool up? Would i get any more power with the vortech compared to the JRSC? Do vortech superchargers usually generate more power than Jackson Racing? I think i will be happy with a supercharger, I hope. Oh yea just thought i would add, another reason i was thinking about a custom vortech is because i could have a blow off valve with the vortech and im kinda hooked on that sound, yet i dont want a turbo...


[Modified by rluder21, 4:36 AM 12/2/2002]

 

If you look at the Vortech SC just like every other SC they are ran with a pully, which if run off the crank, which is always spinning from the minute you turn your car on. So the SC is no wait for boost cause its ran off the crank, Turbo is wait for boost cause the exhuast gases have to turn the turbo so that it can spool up.

 

Yes Vortech superchargers require spool up time. They provide peak powerband much like turbo. JRSC's are Eaton blowers and provide full boost at full-throttal.

 

the Vortech supercharger is a centrifugal type supercharger, which is only efficient at high RPMs....so you have to rev your engine to get the good power. Its power curve is very "peaky"

JRSC is a roots blower, which is better at lower RPM's

 

Ok so now that is straightened out, which supercharger do u think is better? Which would give more gains?
Thanks!

 

If you are going to supercharge.... don't forget to get forged pistons, have the block resleeved, and get new rods.

50% of all super charged / turbo'ed H22A4's blow the engine the first year.

Oh, and you'll need to heavy duty clutch as well.

-Gerhard

 

You only have one choice. JRSC. Unless you want to spend tons of $$$ to get a custom Vortech setup.

Personally, I'm partial to turbo. More HP potential, and it's very streetable if you properly size the turbo. Plus, the "cool" BOV sound...

 

Vortech supercharged hondas are dyno queens.

If you are set on an SC'd lude go with a JRSC.

Do you have anything against turbocharging?

 

Why do you need the do all that just to SC your motor. There are people here who have boosted with a turbo with stock internals. Its all about moderation how much you want of one thing.

 

Vortech takes the worst of both worlds (SC and turbo) and combines them into one package. Power lost though the crank, along with spooling time and no low end. This is what makes the Vortech what it is. Compare the JRSC and the Vortech SC dyno's the JRSC doesn't make anywhere near as much power but if you threw them on a road course most likely the JRSC would win.

 

Its not that i have anything against turbocharging, I just thought it would be too expensive to build up and all. Also i like the reliablility that comes with a supercharger. There is a greater chance of blowing the motor with a turbo than a supercharger. Everyone keeps telling me that once i get a supercharger that i will want to get more power and i will go turbo. If i want more power i can jus get a 9 psi pully right? I think and hope i will be happy with a supercharger because i plan to do i/h/e, pulleys, cam gears, high flow cat, lightened flywheel... maybe some other stuff not too sure right now. But with that setup i think i will be happy because im not tryin to make a drag car or nothing jus a fast car i can daily drive and maybe do some racing.

 

Does anyone know how to fit a JRSC in a 4th gen prelude?

 

Not true. Assuming the same amount of boost--let's say 6 psi since that is what the stock JRSC provides--and for the moment fuel/ignition management aside, a turbo with an intercooler is going to be more reliable than the nonintercooled boost provided by the JRSC. Factor in stock injectors and the poor engine management used with the JRSC compared to a well thought out turbo setup with good engine management and fuel delivery, and the turbo becomes even more reliable than the JRSC. Of course, anything above 7 psi on stock internals, regardless of the source, is going to increase the risks.


[Modified by sharkcohen, 4:42 AM 12/18/2002]

 

"CAZ" from the old HP.com has a JRSC installed on his 4th gen. I believe he custom made an adapter kit for it, and was working with JR to mass produce one. I believe there were issues with firewall clearance. The last time I talked to Vortech, they said there would be a S/C available for H22s in early 2003 which to me means late 2003 or early 2004.
As someone else said, JRSC is great if you're going to be happy with a subtle power increase. If you want almost unlimited boost upgrade possibilities Vortech is the way to go.

 

i think a sc that kicks in a little later would be good for the h22 since its so hard to get traction as it is

 

If you are looking for the most power from a s/c, and have the money, go with the vortech. The JR s/c can't even come close to the output of the vortech. So what if its peaky, that will aid in launching.

I just wish they made a kit for the Prelude. Custom work gets expensive.

 

haha it can be done, look at tossing down 6 grand for it. i have look into this item myself. with my luck i have a 3 party shop of votech very my house. i went in ther talk to the guys, i have a h23 BTW. And i chit chat with them. the basic idea was it will cost me 6k, i will lose my car for 2 months, they ahve to built custom mount. and i look inside the car, they would have to move or change the battery sides in the prelude. just l;ook not that much clearance near the battery. but i also believe that the shop would Dyno tune it too, so 6k install and dyno tune. seem decent, but ack more money then it was worth. I do know that the shop i went to have a vortech SC adpater made for the h22, but you will lose the a/c, i dindt' wanna lose that, so that why it you take me a while, but i am sure it would cost less for a a/c-less SC.

 

If you think about it a custom Vortech setup may end up costing more than a pre-fabbed turbo kit. The Greddy Lude kit is probably the least expensive turbo right now @$2500-2700(new) without the intercooler, but you may be able to get a used DRAG, FMAX or custom kit for $1500-$2250.

Just install and tune the turbo correctly, and dont boost higher than 8 PSI.


[Modified by BlueShadow, 10:33 PM 12/18/2002]

 

Here's another way to see it...

Vortech SC takes the best of both worlds (SC and Turbo)
- No Turbo lag (instant boost like any SC)
- High Adiabatic efficiency. Assuming an Adiabatic Eff. of 60% for a roots blower and 75% for the Vortech at B.E.P., the roots blower will generate 60% more heat to the compressed air than a Vortech Blower.
- No risk of boost spike at WOT (no need for a boost controller)
- Who needs boost at 2000RPM?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TimeRacer &raquo;</TD></TR><TR><TD CLASS="quote">Vortech takes the worst of both worlds (SC and turbo) and combines them into one package. Power lost though the crank, along with spooling time and no low end. This is what makes the Vortech what it is. Compare the JRSC and the Vortech SC dyno's the JRSC doesn't make anywhere near as much power but if you threw them on a road course most likely the JRSC would win.</TD></TR></TABLE>

 

Wow, talk about BFTD!