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Old 08-20-2004, 06:09 PM   #51
JC
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Hell if you make a kit that works, I'd be REAL tempted to just go buy a cheap older Legacy wagon and S/C it. This is one of the best threads ever.
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Old 08-20-2004, 11:01 PM   #52
reddevil
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I installed my custom crank pulley and altenator pulley today. Tomorrow the right size belt shows up and I will finally actually see if the power (IT WILL BE THERE) is too much. I am running a low 4 lbs of boost at max rpm now. I suspect it will be up to 7 lbs tommorrow.

The custom pulley cost more than the supercharger! $240 versus $230. However if the setup works, I will be doing a step pulley instead of a larger crank pulley in the kit.
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Old 08-21-2004, 05:18 AM   #53
Kevin Thomas
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Quote:
Originally Posted by reddevil
Ran the supercharger tonight finally at the track. Without nitrous, I only ran a 16.45 but it was first run of the night and I launched bad. Then worked my way up to a 55 shot of nitrous and the supercharger loved it. I ran consistant 14.8-15.1's 6 times in a row. Best was 14.853 @ 93.22. The top end was completely different than with NA plus nitrous 80 shot. Compare a 14.967 @ 90 (NA w/nitrous 80 shot) to a 14.853 @ 93.22 (supercharger w/ nitrous 55 shot).
Just saw this post. Very nice! What does a legacy like yours run stock at the track? What was your trap speed(s) when you ran without nitrous? Could you post up your 60ft times so we can play the 'what-if' game with it? Like what if you launched a 1.8 60ft time vs the 2.7 one you did, then you'd run a ??.? time.

Man, you need to put this on my old school scooby. Yeeaahh!
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Old 08-21-2004, 08:46 PM   #54
reddevil
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Well, all the final pulley install went well. Since I am going bigger on the crank I had problems finding a correct size belt and ended up having to add another idler pulley but it does work about 90% ok.

I rearranged all the nitrous and fuel solenoids and installed a second fogger nozzle for the fuel solenoid that kicks in when the supercharger turns on. It looks pretty clean, still alot of wires and such, and I have the top of a fuel line rubbing the hood which is annoying and will have to be dealt with.

So what about the power you ask?

9 lbs of boost baby. Give or take a few pounds since by boost guage is questionable at best.

Floor it (only way for the supercharger to run as it is hooked to a WOT switch) and it kicks right in, no lag. I would compare it to a 60 shot of nitrous. My AF ratio is running about .82 on average. My EGT guage is still sitting on the shelf.

I am taking it out to PIR tonight and expect it to be in the low 15's with just the supercharger. If it gives me an addtional 50 hp at the crank, I should turn a 15.3 et @ 89 mph. This is an estimated 190 hp at the crank in a vehicle that weighs 3015 lbs with me in the car.

With a 55 shot of nitrous I should run 14.2 @ 96 mph.

And If I dont blow the motor up, I might even put in an 80 shot and go for a 13.99 second et!
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Old 08-21-2004, 09:23 PM   #55
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nice work.
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Old 08-22-2004, 12:32 AM   #56
reddevil
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Durned rain! Rained out for the races tonight. Have to wait till next week.
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Old 08-26-2004, 07:54 PM   #57
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Well, belt tension is a sloppy way of controlling max boost, but it does work.

I noticed that my boost had dropped from 8-10 to 4-5 so I tightened up the belt, and then went just a bit more for measure. I had to run an errand and on a section of highway of course floored it. Started knocking real bad so I started fluttering the clutch to see if it would go away but it wouldnt. Then I glanced down at the boost gauge.

12 psi!

I let go of the gas to say the least.

It turns out, and makes sense, that the higher the boost, the harder it is to turn the compressor. So while I may have been making 8-10 lbs of boost for the last 6 days, the belt was always slipping a little. So the moment I tightened it up to where it really should be ie no slipping, FULL boost occurred.

I think I will "detune" it by loosening the belt. Better low boost than blown engine.
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Old 08-27-2004, 01:18 AM   #58
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You know, they are making a Supercharger for the Saturn Ion now (it's available on the 2.2l inline Ions, sold under the 'Saturn Ion Redline' name). It's good for 12 psi. Might want to see about giving that a try. (Note that the Ion Reline is FWD, so the engine is oriented differently. Probably be tricky to rig it into an AWD oriented engine. )
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Old 08-27-2004, 04:00 AM   #59
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Quote:
Originally Posted by Chi_San
You know, they are making a Supercharger for the Saturn Ion now (it's available on the 2.2l inline Ions, sold under the 'Saturn Ion Redline' name). It's good for 12 psi. Might want to see about giving that a try. (Note that the Ion Reline is FWD, so the engine is oriented differently. Probably be tricky to rig it into an AWD oriented engine. )
totally differen eaton roots housing, i tried to do what he did to an RS, there just isn't the room for it, the best kit(and i can't believe i am going to say this) was the rimmer top mount, unfortunately he screwed a whole lot of people over, there's no room between the strut tower/hood/abs modulator to do this on any impreza w/ ABS, MAYBE one w/o but it's a much tigther engine bay on that side. Believe me i wish i could make a Supercharger for this car
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Old 08-27-2004, 09:21 AM   #60
jamesfacts
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Wow. I've followed your threads in N/A, but I hadn't heard much in a while.

Congratulations! And, keep us updated!
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Old 08-27-2004, 11:00 AM   #61
reddevil
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finally going to the track tonight PIR. Rain Rain, Stay Away! Then off to Hood River for the subie show on saterday
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Old 09-17-2004, 02:54 AM   #62
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those are some sorry ass times for a supercharger/nos. i rather boost
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Old 09-17-2004, 06:56 AM   #63
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Default um why?

You ever hear the expression if you don't have anything nice to say, don't say anything. Plus I don't see how you can say those are bad time for such a heavy car that's running an old 2.2L When I had a turbo 2.2 NA engine it was in my impreza at 7psi running 14.5 consistantly but the impreza is much lighter.
Joshua
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Old 09-17-2004, 08:38 AM   #64
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Quote:
Originally Posted by ownnij
those are some sorry ass times for a supercharger/nos. i rather boost
Sounds like you really know what you're talking about.
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Old 09-23-2004, 02:14 AM   #65
ownnij
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Quote:
Originally Posted by bennettsweb
Sounds like you really know what you're talking about.
im sorry i read the forum wrong, i thought he said 15s.
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Old 09-23-2004, 02:32 AM   #66
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I did say 15's. 5 psi on a 130 hp stock motor is only about 160 chp. Obviously that is nothing compared to major hp engines. When I get engine management and can safely run 10 psi I should break into the 14's. As is, I already "broke" a piston and had to do a rebuild and am back to the safe 5 psi.
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Old 09-23-2004, 09:13 AM   #67
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subscribe...
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Old 10-17-2004, 09:14 PM   #68
reddevil
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A little update.

Since I rebuilt the engine due to a blown piston I have installed a Walbro fuel pump, MSD rrfpr AND an a stock JDM AWIC. Now I should be able to run higher boost (not gobs higher, just higher) without detonation.

I have run for about a month now at 4-5 psi with no problems. When I installed the AWIC, the boost dropped down to 3 psi because of the restrictive airflow into the manifold. So I got gutsy (some would call it stupid) yesterday and reinstalled the large 7.5" crank pulley that had caused me to run 10 psi and detonate the first time. I was hoping that the combination of better fueling and the AWIC reduction in boost would give me a lower psi level that didnt detonate.

I got my wish. I am boosting at up to 8 psi now with no detonation. How do I know? Well last time I had detonation, it was LOUD like a rock in the exhaust. The car is feeling fast now, although enough is never achievable!

I have probably boosted my stock 130 hp engine to about 190-200 at this stage. Can't wait to "prove" some numbers either at the track, or the next rallycross.
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Old 10-17-2004, 10:25 PM   #69
AcquaCow
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I'm gonna put you and Baldturbofreak together in a room for a few hours with some spare parts and see what you two come up with =P I'd personally be frightened of the result.

-- Dave

[Edited to fix typo]

Last edited by AcquaCow; 10-18-2004 at 12:05 AM.
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Old 10-17-2004, 11:29 PM   #70
reddevil
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Just imagine if I actually had money! Everything i have done so far is done on the supercheap. I admit I have spent about $4000 total in the past year and 6 months but that includes everthing from purchasing the car, new tires and minor misc. It also includes two engine rebuilds, head rebuild, new clutch lots of nitrous crap ($750 ?) and what not. Actual cost of the supercharging project including the AWIC is about $1500.

Imagine if I had the money for a real aluminium mandrel bent intake. Or the money for a clean resistance free intake into the SC. Or, dream and dream some more, aftermarket timing and fuel management!!!! Oh to dream!
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Old 10-18-2004, 12:06 AM   #71
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you could do a wrx swap for that price...
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Old 10-18-2004, 12:37 AM   #72
reddevil
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$1500?
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Old 10-19-2004, 12:06 AM   #73
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If I wasn't planning on really playing with an EZ30 in the future, I'd be looking for an EJ22 and one of the Saturn Superchargers I mentioned before.
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Old 10-19-2004, 12:38 AM   #74
reddevil
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I doubt the Saturn SC would be as easy to fit as the M62 is. Also, the M62 is totally capably of the same boost, it all comes down to pulley ratios. And most importantly, the cost is probably about a grand cheaper as I supect there are not too many "used" Saturn SC's out there yet.
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Old 10-19-2004, 12:57 AM   #75
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Quote:
Originally Posted by reddevil
$1500?

You should be able to source the parts for about 1500 to 2k.
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