What would you pay for a Supercharger kit?

[240Knightrider]

Hey everyone, im working on a supercharger kit for the 240's.

I just want in idea on what everyone would actually pay for a working Supercharger kit. Thanks

Roots Blower with 6-71/2lb pulleyAll mounting brakets, screws, nuts, bolts, washersIntercooler, Piping or aftercoolerBeltFMUFuel Pump

Upgrades would include Injectors, fuel pump.. etc
Modified by 240Knightrider at 12:02 AM 12/17/2005

[masticatingcow]

What type of charger are we talking about? What would be included in the kit?

[240Knightrider]

Roots style blower, intercooled, all hardware included (ex. mouting brakets, pulley, etc.)

[95lstegman]

if it's like an average Jackson Racing kit (but more reliable), with the ability to crank it up to 10-12psi (with varying pullies) and intercool it with water injection, and comes with EVERYTHING needed, including brackets, bolts, nuts, washers, belts, pullies, and FUEL MANAGEMENT, then i think a similar price to Jackson Racing would be fair, as long as you offer a warranty on the product. i think $2500 would be very fair, not to mention worthwhile, for a kit that comes at 7psi with no water injection. water injection and higher boost pullies could be optioned for ~$300-400 something and ~$100-150, respectively. perhaps a full high-boost kit could come with pullies for 10psi, a fuel pressure regulator to up the pressure a specified amount, and a different program on the ECU. perhaps $500 or so for that.

i think any kit sold MUST come with appropriate fuel management; at minimum, a set of 370cc SR injectors and a chipped, pre-tuned ECU designed to work with an engine that has s/c, header, and exhaust. i know it's pretty easy to chip SR ECU's. i've never busted open a KA ECU, but it seems most japanese ECU's can be chipped, and it would be a powerful, cheap method for providing fuel management, and far better than the piggy-back e-manage versions and such that come with some turbo kits.

[240Knightrider]

I didnt think about injectors being include but thats a good idea.

Im thinking I will start the base kit being

Roots Blower with 7lb pulleyAll mounting brakets, screws, nuts, bolts, washersIntercooler, Piping.Belt

I would step up from that.
Modified by 240Knightrider at 1:10 PM 12/16/2005

[95lstegman]

please add injectors and ECU. it won't add that much, and will really help it be a bolt-on deal. contact a decent nearby tuner once you have a kit ready and have them make a chipped ECU for you for a few hundred bucks, then maybe $100 each after that with the same program. then you just buy used SR injectors and you've got a fuel system that costs you ~$200 and would be damned good and dead reliable.

[AeonTorpor]

Yeah, I deffinately agree with 95lstegman about how depends on how advanced the kit is. I already know 2 or 3 people that would probably be interested in getting a supercharger setup for the 240. And $1000-1500 for a base kit would be great, but i'd bet they'd push for the higher kit because of the extra time and money for injectors and ecu/tuning.

[Chezedik]

+1, w/o Fuel Management, it isn't worth doing.

[chrislis]

give me one for free and i'll wear your stickers on the inside of my hood. sounds like a sponsor, eh?

[240Knightrider]

Doing some quick research I will be donig some fuel management. Not to sure im gonna use SR injectors though. As for the ECU tuned im still looking into that.

[chrislis]

would the fuel management for a supercharger be pretty similiar to that of a turbo? im not too informed on superchargers... just wonderin.

[Chezedik]

Yes, you just need to match a mass of fuel to a mass of air.

[MS180SX]

id pay about 2000 for a supercharger kit.. One would be real nice for our 2.4's.... so hurry up before i finish my turbo kit...

[240Knightrider]

im estimating it will be done, tested and being sold to NICO club members six months from now. I will start with nico and expand. I guess ill have to become a sponsor

[95lstegman]

would the fuel management for a supercharger be pretty similiar to that of a turbo? im not too informed on superchargers... just wonderin.

Yes, you just need to match a mass of fuel to a mass of air.

mostly the same, yes. it wouldn't be dead on b/c the supercharger will create boost down low where a turbo really won't, and a supercharger will also more than likely heat the intake charge more than a turbo unless there is a really efficient intercooler. but pretty much there differences would be minimal. i think what you were trying to get at was "would i be able to use my turbo setup's fuel management for a s/c at the same boost level," and the answer to that is no. if you're asking if it would be about the same tuning level, then the answer is "yes."

[Kouks]

2000 is fair. Proof of it working and quality parts, i have a ca, or otherwise i would have done it. This is only going to be for a dohc right? SOHC manifold is totally different.

[97ka-t]

I'd pay a $2.5k for a full kit w/ fuel management and intercooler.

[A34D4ME]

I thought of removing the exhaust side from a turbo and gearing it up. I think that's how the Vortec type work anyway. Problem is, where to put it?

Anyway, I can't see how you could make a cost efficient roots type unless you sell a whole lot of them. Given that companies that are already set up for this don't make one, I highly doubt its feasible.

[240Knightrider]

I thought of removing the exhaust side from a turbo and gearing it up. I think that's how the Vortec type work anyway. Problem is, where to put it?

Anyway, I can't see how you could make a cost efficient roots type unless you sell a whole lot of them. Given that companies that are already set up for this don't make one, I highly doubt its feasible.

Not feasible, watch and learn buddy.

not feasible, thats funny

[DjPantsSpecR]

roots or centrifugal?

either way i wont throw down any more than 1300 without an intercooler or and fuel management

[GrilledCheese33]

id sya around 2k, maybe more after I hear your power results and maybe some videos of one You might have one hell of an idea going here. I know i'll be a customer if all works out for you.

[gepeto]

Let's see the results and parts list but I'd be ready to spend 2000$us easily.

[A34D4ME]

What, did I misspell feasible?

Anyway, I'm glad you're so confident. Do you have access to a machine shop? Why a roots type blower and not a screw type?

Do you have something in mind? If I had the equipment, I would go for a centrfugal type - just add a gear box to a big turbo.

[InsanityInc]

Whatever you do, could you do us folks in CA a favor and get it CARB approved? The process is extremely simple and I think it costs like 50 bucks.

[BomexS13]

Id like to see this. Do you have the finished product?

[TheOne]

Why a roots type blower and not a screw type?

a twin-screw supercharger is more expensive than a roots, and as far as i know lynsolm only makes so many screw type rotors, i believe they own the patents or whatever to those, and kennebell/whipple/saleen and other supercharger companies buy'em off of lynsolm, thats why the 07 shelby cobra GT500 wont have a twin-screw(because of supply issues of twin-screw superchargers).

i'd pay $2k for it, maybe even $2500 for it + some form of fuel upgrade.

[hybrid_flyer]

Doing some quick research I will be donig some fuel management. Not to sure im gonna use SR injectors though. As for the ECU tuned im still looking into that.

contact JWT, they reprogram ka ecu's for turbos, i dont think it would be that much different for a blower. But I would def. be in for one, about 12-15 lbs is what I am lookin for.

[hybrid_flyer]

[QUOTE

Anyway, I'm glad you're so confident. Do you have access to a machine shop? Why a roots type blower and not a screw type?

Do you have something in mind? If I had the equipment, I would go for a centrfugal type - just add a gear box to a big turbo.[/QUOTE]

centrifugal blowers can suffer from lag like turbos do under high psi applications. roots aare power from idle to redline (as I understand it)

[InsanityInc]

centrifugal blowers can suffer from lag like turbos do under high psi applications. roots aare power from idle to redline (as I understand it)

Centrifugal blowers don't really suffer from lag the same way as a turbo, but due to reduction gearing their power delivery as compared to RPM will be noticably non-linear. However, there is never a spool time as the blower is belt-driven off the engine so lag with a centrifugal supercharger does not occur with throttle position changes, which is the main problem with turbos and road racing.

[95lstegman]

exactly what i was going to say. centrifugals don't have lag per se, but boost does build with engine speed, so if you're making 8psi at redline, you'll much less in the midrange and practically nothing at 2000rpm, maybe 3psi at 3000rpm. not useful, not fun. more power thanks to better efficiency at the huge cost of tiny boost at low engine speeds.

and don't get JWT to do your ECU unless you don't mind spending a ton on it. they charge $500+ each.

and BTW, i don't think you'll be seeing 12-15psi out of a roots-type s/c kit unless it's specifically made to supply that much. one designed for 7psi won't cut it at all.