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Old 10-23-2000, 03:09 AM   #1
Kevin Thomas
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Lightbulb The new H6 is swapable.

Reading the latest SCC (Which has scores of articles on the Impreza) it states that the new H6 engine will bolt right up into the 2.5RS engine bay. The bolt pattern of the H6 has more bolts but some of those bolt holes are in the same places as the 2.5RS.

The engine is only 0.8 inches longer and should go right in, possibly on the stock engine mounts. The engine is only 100lbs more from what I remember (magazine is at work). Go out an buy it, NOW. Lots of Scoobies in the mag.

I'll save other scooby material for someone on here to report. Im too busy reading it again (for the 3rd time).
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Old 10-23-2000, 06:17 AM   #2
RidinLow
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I dunno man, 100 lbs is quite a bit to be putting on the nose of a light car that already has 57% of its weight up front...
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Old 10-23-2000, 06:27 AM   #3
boxerman
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The Al bumper crossmember and hood should get the nose weight back to a reasonable level. It only takes an hour to move your battery to the trunk.

Tim.
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Old 10-23-2000, 06:40 AM   #4
RidinLow
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But then you can't leave the car parallel parked anywhere & you'll have a dented hood. Or, looked at it another way, you could make those 2 mods without the H6, spend an equivalent amount of money on the H4 (probably a lot) & get quite a bit of power out of the 4 & lighten the car in the process.

Or, looked at it in yet another way, what other performance mod costs a couple of thousand bucks & adds 50 hp along with 100 pounds to your car?

[This message has been edited by RidinLow (edited October 23, 2000).]
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Old 10-23-2000, 09:02 AM   #5
ColinL
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Miatae have had aluminum hoods forever. Requires more care, surely does dent easier than sheet metal, but isn't that big of a deal.
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Old 10-23-2000, 09:23 AM   #6
Gambit
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I think with an H6, you're better off putting it on a wagon because the wagons has better weight distribution than the regular models.

Don't forget with an H6, you can prolly easily tune it to 250hp levels because it's quite restricted as it is right now. Sadly it is offered in auto only for now....
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Old 10-23-2000, 01:18 PM   #7
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RidinLow: "But then you can't leave the car parallel parked anywhere"

...huh? Don't understand.

J. Kent
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Old 10-23-2000, 02:50 PM   #8
Overtime
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Miatae?

Anyway, the H6 should be swappable, but I don't know how tunable it'll be. There are some issues with it that will need to be evened out after it's introduced.

And do you really want an engine the first year it's put out? It's not that big of a jump in my eyes from a tuned 2.5 or an EJ20T.

Just my opinion.
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Old 10-23-2000, 03:06 PM   #9
ColinL
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Yeah, plural of Miata.
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Old 10-23-2000, 04:25 PM   #10
RidinLow
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Jon, the lightweight aluminum bumper beam pretty much negates any bumping resistance, so if someone hits you while they're parallel parking, you get a crunched bumper.
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Old 10-23-2000, 07:07 PM   #11
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So SCC CLAIMS its swappable. Well have they actualy DONE it? I haven't claimed that my swap works even though I found the physical space to put it in. Thats because I don;t have it RUNNING yet. All kinds of wierd problems can pop up when running.

Don't believe anyone who claims it works until its PROVEN. To do otherwise is to invite loss of $$. My conversion is runnign in the thousnads range. The guy who is going to do the same but w/o turbo is going to hit maybe $1K. I have had to spend more figuring out solutions, and prototyping parts. I think the 3.0L H6 swap will be in the same boat, unless the motor is 100% compatible with ALL ej-25 related parts currently under the hood. That is NOT the case as anyone who has seen a diagram can tell.
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Old 10-23-2000, 07:22 PM   #12
10th Warrior
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and lets not forget the computer. you'd have to get a whole new system. probably a new fuel system as well. i'd rather have a turbo. besides, they sound cool
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Old 10-23-2000, 09:02 PM   #13
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Hey, There are some good points to having the first release of a certain engine. My 95 2.2 although not new came without a couple smog devices...
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Old 10-23-2000, 09:47 PM   #14
Geoff
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Hrm....H6...plus Minnam Stage-2...and BPM gearset...damnit Kevin, quit giving me more ideas!!!
-Geoff
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Old 10-23-2000, 10:38 PM   #15
HondasRslow
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the H6 swap would deffinately NOT be worth it. A hundred extra pounds, plus ALL the work doesn't quite add up as logical in my head. I work for Subaru and ive driven the H6, it makes 210 hp feel like alot less, and no its not just the wieght that brings it down, its just not tuned as a "sports car" it was designed as a old people car, luxury i guess you could call it. It revs no where near as quick as the RS. Plus you can only get it as a slushbox, no thanx ill settle for a turbo charged 4 banger.

-Alex
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Old 10-24-2000, 12:28 AM   #16
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Well, Kevin has a Wagon, as do i.

Has there ever been a forced-induction H6 from Subaru?
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Old 10-24-2000, 07:07 AM   #17
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yeah yeah enough about the H6, someone steal the manuals for the new WRX and see if that engine will fit in the RS, thats what I am interested in
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Old 10-24-2000, 07:17 AM   #18
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I agree, I wonder how easy it will be to swap the turbo H4 into the RS.
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Old 10-24-2000, 03:49 PM   #19
Kevin Thomas
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Question

What do you think would be faster: 1) a turbo H4 swapped into an RS, or 2) an H6 swapped into an RS?

The H6 may be faster in a straight line since it has slightly more hp, though it has a weight penalty. And just because the front end would be heavier in the H6, that doesn't mean an RS with an H4 turbo swap would be faster in the twisties. Let's not forget how the big, heavy, non-twisty performing Mustang GT whooped up on the Acura ITR at the track (SCC-Sport Compact Car) and in the straight line.

Just making an observation as usual. I don't take either side of the argument here.
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Old 10-24-2000, 04:01 PM   #20
eicbal18
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New H6 swappable? then new turbo engine that will come out in MY02 could be swappable too.
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Old 10-24-2000, 06:09 PM   #21
slim speedy
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Actually according to excite's auto guide the H6 only has 212 HP and the new impreza has either 215 or 227, depending on whose numbers you use. Plus I think having the extra weight in the front will mess up the handling. Regardless the turbo engine should be much easier than the H6 to get more horsepower out of(turbo engine, more aftermarket support, etc.) Anyway thats my take on it, so line me up for a WRX engine after someone takes a corner to fast

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Old 10-24-2000, 08:19 PM   #22
Dan_E
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...Or you could just Turbocharge the H6
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Old 10-24-2000, 08:24 PM   #23
Kevin Thomas
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Lightbulb

Or supercharge it, like JC Sports did on a Legacy with an SVX engine. Got Hybrid?
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