crxsi1

So im trying to find info on a supercharger for my d15b8 mini me... its in a 97' civic dx... I dont want to turbo it so out of the question... please dont tell me too... I cant really seem to find any company that makes something for my car but I've seen it... like a side mount... small boost maybe around 8-10lb. Can anyone give me some info on companies that would have a setup? Thanks in advance

bkuehl

Kraftwerks just came out with a kit for the D series.

Freemananana

iTrader: (3)

That's the only one I know of too. And a supercharging is much like a turbo charger. I don't see the difference in the systems. One has a belt, one is exhaust fed. That's all.

Muckman

iTrader: (2)

Freemanana research roots vs centrifugal superchargers.

Dark_Teg

My Lightning has a Roots blower, boost is instant but falls off up top.

My Mustang had a Vortech Centrifugal blower, boost comes on later and has a peaky high rpm power band.

My CRX with the turbo is a compromise between the two.

92cxyd

Or fab your own setup, easy to do, I use a SC14/TX15 from a '95 to '97 Previa.

If you have any fab skills you should be able to build for < $500 w/o intercooler or <$700 with intercooler (you want intercooler b/c of you high compression mini-me)

Insta-boost from 1k to 8k revs depending on the engine setup you can get 10-18pisg.

And yes it is that cheap if you are resourceful enough, if you are not you can still do it for <$1000. Roots style compressor 84cid/rev you can buy off of egay for <$300. Has an a/c style clutch so you can turn it off for decent mileage, and turn it on to beat on some v-8s.

Been rocking mine for 5yrs. as part of a twincharge setup 2yrs now.

crxsi1

For real that's awesome

crxsi1

Thanks I will look at this... but the reason I rather have a supercharger is a couple of reasons. You would get a little less heat stress. My acceleration would be a little more responsive which is key as I am road racing the car. For tuning purposes and in my experience less hassle or more reliable. Once its tuned I wont really have to mess with anything. And if its setup correctly I should reach about maximum boost about half way through the rpms. Which is nice through turns. The car has a complete y8 head on a d15b8 w/a p&p and slight mill and b16a TB. So my compression is high and with a turbo I dont want the complications of boost creep and blowning hg left and right or even worse a rod. If I want more boost from the supercharger I simply change out the pulley and adjust the timing slightly. I'm sure there might be a little more to it. I haven't been around forced induction in awhile. Thanks again though, I will look at all the info.

crxsi1

I would like to think I have some decent fab skills. Lol! But ya I've had to do some fab work before with most success. I do have some good sources for parts and what not. I am extremely interested in this previa setup. Could you maybe pm me or share on here as im sure other people would like to hear. Like as in what would I exactly need for this setup. Fuel pump I'm guessing. It is a 97' dx with this setup just so you know the chassi. Would I have to upgrade anything on the fuel side, ect... give me all of it... I am kinda interested In the one that turns on and off. Very cool...

Freemananana

iTrader: (3)

Okay. The Roots supercharger, the one everything thinks of when they think muscle car, is similar to the twin-screw superchargers, right? The roots supercharger is generally what I think of when I think supercharger. They are very efficient at low boost. This generally means a bigger blower running slower to increase the compressor efficiency. They are good for instant power but fall off at the top end.

On the other hand, centrifugal superchargers kind of look like turbos. Except on one side there is the belt instead of the exhaust header. This is what I see on a lot of cars now days. I saw a honda supercharger kit recently and it was a centrifugal supercharger. These are very easy to run with intercoolers like a turbo, from my understanding. These superchargers build boost with RPM. Much like a turbo.

I know there are differences between the types of superchargers and turbos. But if you have a goal, you can plan to get there. There are plenty of turbo chargers that can offer low end power like a supercharger. The problem is they end up like the roots superchargers and lack top end. But if you are doing autocross this doesn't matter, you just want a thick low powerband.

I would go with a correctly sized turbo over a supercharger. But that's just me.

This is my basic understanding of the difference between the two major supercharging systems. There is always a compromise when building a motor. So you should be able to set goals for the car and decide based on that.

From this I guess you want a roots blower then. I wouldn't say tuning is any less of a hassle nor would I say a supercharger is more reliable. It's all in the parts. You can have either as a set it and forget it set up. Pretty sure you can set up either system to hit full boost at a reasonable RPM. I didn't think tuning a supercharger was that easy.

This all reminds me of the drifting scene. The V8s vs. Forced induction. V8s have instant power all the time, forced induction has a power band that requires 'skill' (that's what the drivers said) to stay in. It's all preference. For your supercharger system, definitely look into fabricating your own. That way you can get exactly what you want.

crxsi1

So I've been reading ahout this previa setup and really like it... i realized you were talking about that one being able to turn on and off which i like. And yes I know there is wear and tear with either turbo or supercharger but for some reason people that I've witnessed with both setups, the people with superchargers generally had less problems through a race... idk... IMO I guess. But at the end of the day I will either supercharge it or leave it N/A.

crxsi1

Is what I really really wanna to do is stroke my d15b8... with it suoercharged I think it will be an awesome little combo... I want the most badass mini me ever using pretty much oem parts whether it's from a Honda or not... really the only thing aftermarket would be an e/I/h and maybe a pulley or something. I'll call it the monster mini me or the triple M. Lol!

crxsi1

Im going to have to use a crank from a d15a3 crxsi (a2) hf I believe... get the rods shot peened and use p29 pistons. Get that all fitted to correct tolerances and walla you have an oem stroked d15b8 at about 1523 cc and will bump my compression slightly more to around 11:1. Help bring that tq up a little more along w/some hp and add a supercharger. Man I really am antsy to put this together and see some numbers.

92cxyd

I have a build thread on this: http://www.realhomemadeturbo.com/for...pic,651.0.html

Keep in mind that the SC14 was made for CW rotation engine originally but when you CCW it still work perfect for our Hondas.

On ebay right now there is one at the best price I've seen in a long while.
http://www.ebay.com/itm/JDM-95-96-97-TOYOTA-PREVIA-2-4L-SUPERCHARGER-UNIT-/251363287423?pt=Motors_Car_Truck_Parts_Accessories&hash=item3a866b617f&vxp=mtr
Or if you have a junkyard connection you may get lucky and find one in a Previa.
When you pop the hood the battery will be on the passenger side. If not than you are looking at a n/a model.

You will need the inlet and outlet manifolds the rest like the TB and solenoids get rid of.
If you have a/c in your car get rid it you will mounting the S/C using an extra D-series Alt. bracket and with a large flat pulley (100mm+) from a parts store.
Like this or if you can make spacers:


Then take a IM to block bracket/brace and us it for you rigid mount on the top half of the S/C. Ignore the turbo could not find w/o turbo.


Then take inlet and outlet manifolds off the S/C cut them to suit the way you are going route your piping. Cut the extra parts of manifolds you do not need. Weld some aluminum pipe.
Roll a bead on the pipe, I use a fence plier like this.





Ok for the tensioner for the S/C belt I used the A/C tensioner Pulley. The S/C comes with a 8 rib pulley, but the d16 crank has a 4rib pulley this all you have to work with.
Start with a 5040410 (dayco number) and go as tight as you can before the tensioner comes into play.
Should look something like this, ignore the upper crappy bracket, this was before the rigid on eI use now.


With piping connected to inlet manifold.


With piping connected to outlet manifold, do not use these type of couplers, get fiber reinforced silicone. I get mine from http://www.siliconeintakes.com/ good prices and fast shipping.


The belt routing should look something like this. Keep in mind this is during initial mockup phase, cut up that inlet pipe and he upper s/c mount is different.


If you wan to us the existing a/c harness make sure you jump the pressure switch plug that normally plugs in the back of a/c compressor.

Hook up a/c clutch harness that went to your original a/c compressor to the a/c clutch on the s/c.

To activate the S/C you turn the interior heater fan on 1 or higher and hit the a/c switch on dash.

For fuel I originally used DSM 1g Blue top 450cc injector w/ resistor box, but you can buy larger injectors to hook up to existing inj. harness for a little more and not have to use resistor box.

You can use stock fuel pump but it be pushing your luck, better off getting a 225lph pump.
Get a OBD1 to OBD2a ecu adapter harness and get a chipped P28 or clone. I use Crome 1.5.5 with Pro license. Or spend a little extra and get Neptune if you plan on going further.
You will want to start with 200% turbo eff. and 2deg/psi in the boost adjent tables.
You can use stock MAP sensor (good for upto 11.7psi) but I perfer to use a 2bar or 2.5bar MAP like these:
http://www.ebay.com/itm/NEW-3-BAR-MAP-Manifold-Absolute-Pressure-Sensor-For-HONDA-ACURA-Integra-TURBO-/221213988699?pt=Motors_Car_Truck_Parts_Accessories&fits=Make%3AHonda&hash=item338161975b&vxp=mtr
I use to make my own, but now these are getting way cheap.

I use a DSM 1g BOV anywhere between S/C and TB. But you can use what ever BOV your heart desires.


The big concern on this setup is you will have traction control issues in first and part of second gear. Good tires will be helpful along with an LSD trans. makes for fun driving in snow.

Also if you use stock bottom end be very conservative on your ignition timing and keep the revs below 7k as much as possible b/c bearing the stock pencils thin rods do not like high revs.

crxsi1

Ya I saw that one too... was gonna ask if it were the right one and a good price. I gotta tend to my children at the moment so ill have to come back on later. I will have more q's. Lol...

89LSED

This is soooooooooo what im going to do!!!!

Will this charger flow enough CFM for a B20?

89LSED

Never mind, lol
95-97 TOYOTA PREVIA 2.4L SUPERCHARGER
2.4...

crxsi1

Would it not work w b series? Just curious...

Freemananana

iTrader: (3)

I think it will work with a B-series. HASport makes a mount to use your factory AC on a B-series in an EF civic. So I am assuming you can fabricate a mount for this supercharger using the same mounting points. The question of CFM can still be raised. The toyota previa made 20 HP and 40 FT-lbs using this supercharger, from the factory compared to the non-supercharged version.

crxsi1

Thats not to bad I think... I guess it depends how much I can get everything. I would have a couple of other mods that I would have to do like fuel pump and some engine management that should net me at least a little more then 20hp. Im working on finding out how much everything together would cost... all the little things... belts, oil, ect...

crxsi1

Im wondering when its not engaged does it effect the air flow to where I may lose performance while not on? I imagine maybe a slight bit but not really noticeable. Could I build a by-pass? Near the top by tb like a check valve or something. Lol my ideas are flowin.

92cxyd

Yeah there is an Aussie who makes kits for b-series who posts on here and other places.

This guy made his own:
http://nzhondas.com/forced-induction...sing-sc14.html


Simple and basic, there is other builds who over think about puting the TB before the S/C and using a bypass valve.
Do not follow that path it will be a unnecessary tuning headache.

crxsi1

I am a little confused on the pictures. One of them the first one, theres a pulley setup. Is that used instead of the lower picture were you're using that top stock pulley. Or do I need both? And the one with the turbo is kinda hard to see. Is any d series alt. Bracket the same or do I need my yr motor? Im trying to visualize what it will look like. The pics are good but its a little hard to see the whole thing.

92cxyd

Both, one is an idler pulley mounted with lower s/c mount going thru it. The other pulley is a tensioner which it the stock a/c tensioner.
As for the year of motor I have used the same bracket setup from 88-00 D-series w/ no issues.
The idler pulley I used is from a parts store shelf. Pulley is flat no raised edges 17mm center with a bushing in the kit for a 10mm or 3/8 bolt to go thru.

Freemananana

iTrader: (3)

Do you know what kind of gains you got from this supercharger?