eg33 supercharged using eaton m90

[Sleepinsuby]

So I have a eg33 I'll be putting in a 91ss legacy. The motor is currently swapped in a92 legacy wagon using the factory svx harness merged with the wagon harness. Well I found a steal of a deal on Megasquirt2x this past weekend so I picked it up for the project. Now that I have em I'm realy pushing twords sc the eg33. Iv been looking into the eaton m90 it's a self contained oiling system so no oil lines to deal with and is rated by eaton for a 3.0L to 5.0L depending on the mods. The sc I plan to use comes off of the Pontiac gtp 3.8l v6. I feel it factory will be plenty for the eg33 and I can use the gm throttle body and sensors for the ms2x. I'll be running map on the car and possibly a Maf as well down the road. Figure with good tune on 6psi I think it could get 300hp out of the eg. The motor will be getting some cooling upgrades during the swap and also head gaskets, water pump, timing belt , oil pump. For head gaskets I'm still searching trying to find a thick one to help bump comp down a lil and oil pump still undetermined as I'd like to bump the flow rate/psi up for max efficiency.

[httrdd]

I have the perfect intake manifold for you in my part out thread. 1 of 6 hand made!

[Sleepinsuby]

Is it one of ecutunes manifolds for their sc kit? I think they used the eaton m62 on that set up. I wonder how diff the m62 is from the m90. I was thinking of a custom top manifold I'd like to intercool the set up as well to kill some of the heat the sc will make in the charge air. Also I'd like to delete the flap in the upper manifold.

[mike-tracy]

I've driven the car your SC is off, and that thing is VIOLENTLY fast off the line. with traction control off you just burn rubber at all lower speeds.

[Sleepinsuby]

I've driven the car your SC is off, and that thing is VIOLENTLY fast off the line. with traction control off you just burn rubber at all lower speeds.

You talking about the gtp or a sc svx?

The more I dig threw info the more I think I should keep the iris system. (flap inthe intake)it seams the iris system keeps good ballenced vac in the intake manifold giving the motor the tq spike from 2200rpm to 5000rpm. I'm also trying to figure out a way to run the sc with intercooler. I don't plan on going big crazy blow the motor power I'd be happy with 300awhp.for starters the boost would be 5-6psi then get it fine tuned and reliable then maybe push the power up a lil more.

[mike-tracy]

GTP is what I've driven. Never seen an s/c'd svx in person, though a friend of mine put a decent sized turbo on his eg33-swapped legacy, and it ate about a tranny a month, lol. RS, GT, WRX tranny it didn't matter. Prob the only thing that's going to hold that much torque reliably is the 6mt.

[Sleepinsuby]

GTP is what I've driven. Never seen an s/c'd svx in person, though a friend of mine put a decent sized turbo on his eg33-swapped legacy, and it ate about a tranny a month, lol. RS, GT, WRX tranny it didn't matter. Prob the only thing that's going to hold that much torque reliably is the 6mt.

Dang a trany a month is redic. The swaps had a 04 wrx trans behind it for a while now with a stage2 6puck clutch and it holding up even with the occasional hard launch. On your Buddys turbo set up did he keep stock upper intake on the eg33? I'm back and forth if it would be better to keep the iris system or completly do away with it and build a custom upper intake. I know it's there to balance out the vac in the intake to ensure to get plenty of air to the cylinders but the ? Is would it realy matter if your constantly shoving boost at it. If deleted I coul see it hurting the idle maybe as the sc will be bypassed and maybe the first 1200rpm but by 1500rpm or 2000rpm I want full smack ya in the seat boost of 6psi haha. If I make a upper manifold it will be tube and I'll measure cc in the stock intake with water and make the tubes equil length the measurements found in the stock manifold or slightly bigger.

[Kansei]

holy shit i'm subscribing to this.

[kay95]

Keep the IRIS valve. The purpose of that valve is for the natural supercharging effect at higher RPMs. It makes power in a similar way variable length runner intake manifolds.

[anothernord]

Superchargers will FUBAR Subaru 5MT's like nobody's business (if they're driven in a way that takes advantage of the SC). I know; I grenaded the input shaft bearing with my old M62 setup.

[Garrison]

Yeah m90 will push all the air you'd ever need in that engine. I'd advocate a low psi turbo application, maybe a Td05-18/20g and run whatever you can get away with with that megasquirt. The problem is the lower gears; the eg33 + any kind of forced induction is going to strain 1st and 2nd very hard.

[Tradewind]

M90 will be working fine, get some intercooling into it tho, nothing like an M90 to roast those air molecules :)