How much would you pay for a 4 hour supercharger kit?

[douglas vincent]

All right kids, how much would you pay?

If I would offer a supercharger kit that is BOLT ON, with no engine upgrades needed that can be installed with basic tool box set, and in 4 hours and gives a 40-60 crank hp (could be more, I still have to Dyno for real number proof) increase, what is this worth to you? The kit will require you to cut out some of your fender well for air intake.

I know it will work on old legacies (90-94). If I get enough support, it WILL work on new imprezas. WILL NOT WORK IF YOU HAVE ABS

Available options would be:

1- Intercooler (inline, top mount style, would require you to cut your hood and install scoop. Guess what, this adds a little more time.)
2- Air water intercooler (inline, top mount style, would require you to cut your hood and install scoop. If requested enough, would offer with water pump and hardware) This will add more installation time.
3- Nitrous port.
4- Water injection port.
5- What else would you want as an option?


The base kit will include:
1- Supercharger
2- Mounting plate
3- All needed bolts
4- Supercharger intake
5- Supercharger to Throttle body intake pipe
6- MAF sensor adaptor plate for Cone Filter (Cone Filter not included)
7- WOT (wide open throttle) switch
8- New crank pulley or step pulley kit (needed to get Supercharger to correct RPMs.
9- Idler pulley and installation bars
10- New 5050 Dayco PolyCog belt.
11- ?

This kit will use an Eaton supercharger that gives power that grows as the rpms rise. This means that at low rpm, you have lower boost, as the rpms rise, the boost grows and thus your power grows, with the power maxing out near your redline. There is no hard spike of boost or power, just smooth and fast increase of power. Superchargers also do not give the huge power increase that turbochargers do. Superchargers are not the same as 20 psi turbochargers!




OK, to go over the facts again.

1 This kit is NOT AVAILABLE NOW
2 40-60 hp expected
3 4 hour install
4 Never going to equal a hopped up turbocharger engine!
5 Will this blow your engine? I don’t think so. I have run my 90 2.2 wagon with a 40 hp shot of nitrous and supercharger with a too small pulley and the thing pulled like crazy and NO Air Fuel problems. If I blow mine, I will stop making everyone wanting a kit by reporting my own problems.
6 So, do you want one!

Douglas Vincent
503-221-7452 leave message if you actually call. Thanks

[THAWA]

without fuel, timing, and boost control, not much

[douglas vincent]

Boost control - not needed. Boost maxes out at max rpm. Never a boost spike.
fuel and timing, if this is working like it is supposed to, also not needed.

And if needed, it would be just like a turbo kit, often sold separately.

[THAWA]

assuming your car is a manual with no revlimiter boost control is needed. If you accidentally downshift to where the revs go higher than 6500 rpms, you will need something to limit it. I find it hard to believe that our weak pumps and relatively weak injectors, I really doubt they'll hold up after repeated use with the increase of air coming in from the blower. Same goes for timing, though it might be alright depending on how little boost you're putting.

All in all, I think I'll wait for a "perfect" complete kit.

[evolutionmovement]

I've seen kits for over $3k for 2.5 RSs. Maybe a fuel pump upgrade could be a recommended option.

I think I've personally decided on turbo, but I'd say $1800-2200 or maybe even $2500 with the intercooler would be fair.

My car's manual and has a rev limiter.

Steve

[kelley]

assuming your car is a manual with no revlimiter boost control is needed. If you accidentally downshift to where the revs go higher than 6500 rpms, you will need something to limit it. I find it hard to believe that our weak pumps and relatively weak injectors, I really doubt they'll hold up after repeated use with the increase of air coming in from the blower. Same goes for timing, though it might be alright depending on how little boost you're putting.

All in all, I think I'll wait for a "perfect" complete kit.

[aspect]

assuming your car is a manual with no revlimiter boost control is needed. If you accidentally downshift to where the revs go higher than 6500 rpms, you will need something to limit it.

I think if you force-rev the car into the 8000+ range, a little extra boost is going to be the least of your problems. Who said turbo/supercharger kits have to come with something to keep you from blowing your engine up if you don't know what you're doing? When have you ever seen a turbo kit that includes a pop-off valve so you don't accidentally overboost?

I think it's a great idea as long as the price can be kept in a reasonable range...

If you want a *complete* kit, I'm sure he'd be willing to go down to the local speed shop, buy bigger injectors, a better fuel pump, and some engine management and then re-sell it to you!

[THAWA]

assuming your car is a manual with no revlimiter boost control is needed. If you accidentally downshift to where the revs go higher than 6500 rpms, you will need something to limit it.

I think if you force-rev the car into the 8000+ range, a little extra boost is going to be the least of your problems. Who said turbo/supercharger kits have to come with something to keep you from blowing your engine up if you don't know what you're doing? When have you ever seen a turbo kit that includes a pop-off valve so you don't accidentally overboost?

I think it's a great idea as long as the price can be kept in a reasonable range...

If you want a *complete* kit, I'm sure he'd be willing to go down to the local speed shop, buy bigger injectors, a better fuel pump, and some engine management and then re-sell it to you!

I totally agree, but why let the charger make things worse? I said they needed to have boost control simply because saftey is #1, otherwise I wouldnt buy it. I don't look at turbo kits much, but I wouldnt buy one without some sort of protection. Me personally I've got a revlimiter so that should solve the over-rev situation.

My feelings on the subject is, why sell an incomplete kit that you feel is complete? Your stock fuel system is inadequate for the job. You're telling me you want to use an 80lph pump and 280cc/min injectors on a system that requires about the same as a turbo car (about 150lph pump and 370/min injectors) and say "Will this blow your engine? I don’t think so." Somehow this doesnt equate to me. However, if you were to sell the kit as just the supercharger, and the brackets and pulley and all that stuff, and then note that you will still need at the very least fuel upgrades, then I can see the reasoning behind that.

Also lets not forget that you are going to be using an 8" crank pulley. You are going to overdrive peoples ps pumps, alternators and ac compressors. I somehow don't think that'll be too safe.

[douglas vincent]

Havent sold one yet! Thats why I like input.

[evolutionmovement]

That is a good point about the accessory pulleys. Could you build a stepped pulley (like bigger where the A/C section is normally) and run the charger off that side while keeping the accessories stock? I don't know if there's any way to relocate the A/C belt tensioner (and maybe double up an extra pulley on the same bracket) to the pass side and use that to keep the belt from interfering with the PS and to keep the belt tensioned.

Steve

[douglas vincent]

at this stage I am building up a larger crank but it would be much easier (and I plan to have this done if the kit gets built) to build up a power steering double pulley that would then drive the supercharger up to the correct rpm range (14,000)

[aspect]

I totally agree, but why let the charger make things worse? I said they needed to have boost control simply because saftey is #1, otherwise I wouldnt buy it. I don't look at turbo kits much, but I wouldnt buy one without some sort of protection....

My feelings on the subject is, why sell an incomplete kit that you feel is complete ... However, if you were to sell the kit as just the supercharger, and the brackets and pulley and all that stuff, and then note that you will still need at the very least fuel upgrades, then I can see the reasoning behind that.

You can get turbo kits with fuel bits and without...usually they do say "proper supporting upgrades needed" though! As for boost control, I've never seen a kit come with a boost controller, as there are so many options out there, or any sort of over boost protection (is that even a real thing?). Doesn't mean they arn't out there though...I don't look at turbo kits much either!

I agree with you on the second point. Kit should be labelled that *you* have not run into any problems with stock stuff, but at the very least a user should have their fuel system tested for any output problems (a low-output pump could result in serious engine damage), and larger injectors etc are definatly recommended. You WILL be running leaner than stock with this kind of setup, even if you havn't had any issues so far.

[ultrasonic]

I think most potential buyers would like to see some documentation. If I were looking for a kit like this, which I'm not, I'd want to see:

-dyno charts before and after addition of the s/c kit.
-EGT's and A/F ratios.
-very exact lists of what is included.
-very exact lists of what is required but not included.
-some independent third parties using the kit, reporting good results.

Even with all of the above, I'd consult other experts to evaluate the set up.

All that being said, I think there are plenty of people out there who would be willing to run such a kit even without evidence that it is totally "safe." There are always guys that will go for the power- to hell with reliability.

Finally, if you could make such a kit work on an SVX, I believe there are plenty of those guys who would drop over $2k to add some power. Things may have changed in the last few months, but last time I checked, there were very few options for engine performance upgrades on that engine (EG33, right?).

[NICO]

how much for just the charger and what does it look like.

me an my father tried putting on a thunder bird charger but its so big and there is no way it will fit under the intake manifold. i was going to get those extenders that come on the new subarus that way i could rase and add 4 more injectors on the intake manifold.

does it look like those little round ones like a turbo but belt driven.

[scottzg]

I'd like to know a lot more about this. Eaton supercharger- is that an m62?

Do you have any sort of protection for the extra lean condition the ecu does when you snap the throttle shut (this has killed other subaru sc setups)

Why not change the supercharger pulley size?

Are you running guages at least? Egt, boost, af ratio, etc. What are you seeing?

How does it connect to the intake manifold?

Without at least that, I wouldn't even be interested in buying parts i can tinker with.

I would enjoy a pic of your engine bay too.

Nico- the m62 is the tbird charger, it was used in the rimmer SC kit. That kit used a custom intake manifold with longer intake runners that made it so that the SC could fit between the intake and the block.

Cool.

[THAWA]

http://bbs.legacycentral.org/viewtopic.php?t=17551
slackers

[andrew.anderson]

What model year Legacy's will your kit work on? I own a MY99 Legacy SUS? EJ25D