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View Poll Results: LT1 SWAP ON AN SVX | |||
do it! | 30 | 83.33% | |
don't do it! | 6 | 16.67% | |
Voters: 36. You may not vote on this poll |
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09-10-2008, 11:09 AM | #1 |
Scooby Newbie
Member#: 54260
Join Date: Feb 2004
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LT1 SVX, thoughts opinions
Ok so here is the back story.
I was at a local soobie meet the other night and up rolls this dude w/an LS1 swapped 240sx. It was ridiculously mean sounding and was crazy fast. That got me thinking and for me that's a dangerous habit. I have an SVX w/a blown motor. It's got 200k on the tranny and it's pretty much going to take a lot of work to get it back in decent shape. been pricing LS1 and they are pretty high. LT1 on the other hand are pretty affordable. I would be looking to do a complete LT1 engine and tranny swap with this project. Make the SVX RWD w/that mean V8 growl. Thoughts on this project? *zips up flame suit* |
09-10-2008, 11:53 AM | #2 |
Scooby Guru
Member#: 177
Join Date: Aug 1999
Chapter/Region:
NWIC
Location: Austin, Texas, USA
Vehicle:The 93 W/EJ20K-sold Subaru-less :( |
sounds fun should be feasible ..
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09-10-2008, 03:15 PM | #3 |
Scooby Specialist
Member#: 71658
Join Date: Oct 2004
Chapter/Region:
MWSOC
Location: Duluth, MN
Vehicle:'84 Brat 4" lift and 29" tires |
I think that'd be awesome. yea yea, abomination or whatever blah blah.....
it wouldn't be a subaru any more, but it would be sexy, quick, and fun to drive. now, my concerns. fitting it. is there enough space in the engine bay/trans tunnel? I'm thinking you'll want to have the whole setup as far back as possible. which I think might help with the length (I'm just assuming the V8 would be longer than the H6). but how about height? the EG33 is a pretty low motor, and doesn't have any extra room between it and the hood. might have to put in a cowl (not all bad ). rear diff.....SVXs still had the r160. and AFAIK a substantially different rear suspension setup than EJ subarus. I would look into a full r180 STi rear suspension swap, but I don't know what all that would require. head over to subaru-svx.net for that. |
09-10-2008, 04:37 PM | #4 |
Scooby Newbie
Member#: 54260
Join Date: Feb 2004
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I have a co-worker w/a LT1 Camaro. I am going to take a look at it when he leaves. hope to get an idea of what it looks like in terms of length and height.
The EG33 is a beast of an engine. I have yet to find measurements for the LT1 but I figure if I remove the AC and get a new radiator it should fit ok. Besides, making it RWD will also allow for more freedom with placement of the tranny. Ultimately I am going to have to drop the engine & tranny from the SVX to get some space to mock things up. I agree with the rear diff needing replacement. BTW I found some HP info. SVX stock is 230 hp and 228 lb of torque. Depending on where I get the LT1 from, I am looking at 70 hp to 30 hp increase. The torque would be roughly 102-97 lbs. The best LT1 motor would be from a 1992-1995 Corvette C4, 300 HP and 330 lb torque. BW |
09-10-2008, 06:41 PM | #5 |
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Member#: 15543
Join Date: Feb 2002
Vehicle:555 Having a Subaru shop means too many cars |
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09-10-2008, 08:01 PM | #6 | |
Scooby Specialist
Member#: 113036
Join Date: Apr 2006
Chapter/Region:
BAIC
Location: Bay Area
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Quote:
You might make an SVX a legitimate terror with this build. |
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09-10-2008, 09:03 PM | #7 | |
Scooby Specialist
Member#: 150922
Join Date: Jun 2007
Chapter/Region:
NESIC
Location: Fremont, NH
Vehicle:97 OBS EZ30R 94SVX LSi Bourduex Pearl |
Quote:
-Gaddis |
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09-10-2008, 09:41 PM | #8 |
Scooby Specialist
Member#: 113036
Join Date: Apr 2006
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Location: Bay Area
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You're talking to s'ko, dude, he's kind of more of a guru than everyone here. He shoehorned an EJ18 into a lifted Brat with handtools and then turbocharged it. He knows exactly what he wants and what he's doing.
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09-11-2008, 10:46 AM | #9 | |
Scooby Newbie
Member#: 54260
Join Date: Feb 2004
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Quote:
might be another back burner project. I can't really afford to have a long term project right now. Landlord is getting upset at all of the oil stains near my area Anyways will be poking around a junkyard on the 20th will see if I can find a LT1 to take some measurements out of. BW |
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09-10-2008, 08:00 PM | #10 |
Scooby Specialist
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Join Date: Apr 2006
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Sounds like a really interesting build. Big V8 in an SVX would slay.
Do it. |
09-10-2008, 08:09 PM | #11 |
Scooby Specialist
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Join Date: Apr 2006
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The chassis flex sucks on the SVX. Didn't they have a bad habit of blowing out windshields on sharp turns?
Which means you should seam weld it, foam the chassis rails and weld in a rollcage. RWD SVX sounds so nice...do it, s'ko. "Take a look at what I am wearing people! Do you think anybody wants a roundhouse kick to the face while I'm wearing these bad boys? Forget about it!" |
09-11-2008, 10:53 AM | #12 |
Scooby Specialist
Member#: 183497
Join Date: Jun 2008
Chapter/Region:
International
Location: In the Desert
Vehicle:1998 V4 RHD STi White |
Well I have built many high performance LT1 engines. You want to get one out of an F body (camaro, firebird) or a vette as they are all aluminum headed. GM rated the hp of the vette higher than the fbody but they have everything else the same down to the cam. The only diffrence is that all vettes had 4bolt mains vs 2 bolt, and on anything under 700hp wont make a diffrence. While you are doing the swap I would recomend putting in a comp cams cc305 cam or the crane 224. Or an LT4 Hotcam setup. You can easly put down 330rwhp with that combo, drive it every day, and have a bit of chop to the idle. Give me a pm if you need any help with making it run or picking parts with compatability. Also an LT1 for measurments is physicaly the same as a regular Small block chevy but you have more clearance on the back due to the optispark.
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09-12-2008, 01:01 PM | #13 |
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Join Date: May 2007
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RMIC
Location: Boulder-ish
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Boo opti-spark! I like my Camaro and all(95 Z28) but I've paid more trying to maintain the damn thing than I did for the car. Even with that, the car's been sitting for over a year not being driven because the head gaskets are bad and something in the valvetrain is broken.
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09-12-2008, 01:14 PM | #14 | |
Scooby Guru
Member#: 131347
Join Date: Nov 2006
Chapter/Region:
MAIC
Location: Richmond Va
Vehicle:2007 Legacy 2.5i SE |
Quote:
LS1 engines make anywhere from 295-325 rwhp stock depending on what year the engine is. |
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09-12-2008, 01:12 PM | #15 |
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Vehicle:2007 Legacy 2.5i SE |
You can get a LS1 for $1500-2500 and they make 50-70 more hp in stock form and respond great to mods.
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09-12-2008, 02:02 PM | #16 |
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I have never once had any issues with the optispark. And for best performance results get a 95 LT1 as it has OBD1 and a vented opti. Yes the LS1 is better in every way exept the price is much higher. But LT1's do build torque at lower rpms.
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09-12-2008, 02:28 PM | #17 |
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Vehicle:2007 Legacy 2.5i SE |
Very true. Personally, I would prefer the 70 extra hp and over a little low end torque.
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09-12-2008, 11:13 PM | #18 |
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Location: Maine
Vehicle:1995 WRX 2015 F150 |
I think the biggest problem will be that the starter and oil pan are where the steering rack needs to be on the SVX.
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09-13-2008, 12:52 AM | #19 |
Scooby Newbie
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09-12-2008, 11:34 PM | #20 |
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Location: Land of No Turn Signals
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I voted "yes" to this swap. I know for a fact that an SVX will handle any twisty road you can throw at it (PM Porter) and to add some V8 power to the car would be sweet.
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09-13-2008, 03:19 PM | #21 |
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South East
Location: Pitkin County, COLORADO
Vehicle:Ver. 2 WRX STi wagon BRetty green |
I'm all about a GM swap, but don't do it with an LT1.
Wait it out 'til you can find a sweet LS motor to put in there. As for the extra torque, meh. Anyway, you're going to want more than an R180 if you're gonna put it all to the rear wheels. |
09-13-2008, 03:30 PM | #22 |
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Join Date: Oct 2007
Vehicle:1 07 sti 08 wrx |
do it your just looking at the wrong ls series motor they did make a 5.3l iron motor that are a dime a dozen look in later model gm trucks or you may get lucky and find a 6.0l iron motor there all good and respond well to forced induction
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09-15-2008, 12:49 PM | #23 |
Scooby Newbie
Member#: 54260
Join Date: Feb 2004
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Thanks for the input about the iron block LS motor definately something to keep in mind.
pulled out the EG33. Eye ball guestimation is that it's about 2 feet long. The engine was a good foot from the firewall so depending on how it's all mounted I have about 3 feet or so to play with before I have to relocate my radiator. The best thing is that I might have secured a place to work on the car w plenty of room. I usually work on my cars in my puny 1 car garage and my landlord is getting a little ticked at me wrenching all the time. Does anyone know the external dimensions of a Chevy small block. Tried to google it and did not get firm figures. THanks BW |
09-15-2008, 03:22 PM | #24 |
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Have you tried www.ls1tech.com ? They have a ton of info for the LSx motors
Edit- Here is what I found 26" Bellhousing flange to crank pulley 28" Bellhousing flange to front of water pump 25" Bottom oil pan to top of manifold 12.5" Bellhousing flange to center of motor mount 15" Bottom of oil pan to bottom of exhaust ports 26" Wide to outside of exhaust manifolds http://www.hpsalvage.com/ http://www.fuelinjection.com/ Last edited by blackfang; 09-15-2008 at 03:33 PM. |
09-16-2008, 12:38 PM | #25 | |
Scooby Newbie
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Join Date: Feb 2004
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Quote:
Here are some of the figures for the SVX. 22' from the Bellhousing to crank pulley. 23' from the bottom of the oil pan to the top of the manifold. 31" is the width of the motor. I couldn't get to the measurements underneath for the motor mounts b/c I have to remove the torque converter to get to engine on the stand. Looks like the overall length of the engine is 6 inches shorter than the LS motors. From looking at the LS motors, it looks like the throttle bodies are facing forward. The SVX motor's back most portion is the throttle bodies. I would say that it's about 4 inches for the plastic intake assembly. Well see about placement. BW |
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