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  #16  
Old 02-01-2002, 10:35 AM
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huck369 huck369 is offline
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Quote:
Originally posted by SVXMAN2001
huck369,
So it is possible to make a high performance 5 speed? how much hp/torque do you think the car could handle if the the 5 speed was made more high performance oriented?

ob btw, is a short throw kit a possibility?
I think the Subaru Manual Tranny's will hold up much better than the Autos do, plus they're cheaper & easier to come by, if they do go bad.

As for the short throw shifter, I Modified a stock Impreza Shifter for my SVX by lengthening the rods, so one of the aftermarket Impreza shifters could be modified the same way.
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Subaru Ambassador
92 SVX LS-Tour Magnaflow Exhaust, 5-Spd-AWD
88 XT6 AWD 5-Speed "Bride of FrankenWedge"
15 Impreza Premium Sedan
15 Crosstrek XV 5-Speed
My 5-Speed "How-To" Write-up
1976 Pontiac Firebird Formula
Current Count of Subaru's Owned.... "70"
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  #17  
Old 02-01-2002, 11:55 AM
cdigerlando cdigerlando is offline
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Who knows as far as how long the 5 speed will last. As a note the only manual transmission that can handle more power than the SVX engine is the WRX STi. Also don't forget that the SVX is much heavier. That will stress the tranny more as well.

I'm not trying to be pessimistic. I would run good synthetic gear oil in the tranny and not beat on it too much. As I said before, quaife makes hardened gearsets for many of the subaru transmissions. You have the backbone, you would just need to rebuilt it with one of these gearsets.

As for the auto being weak.....yep. Weaker than the manual....I doubt it. Level 10 tranny, much stronger! Level 10 vs. Quaife doggear set.....who knows.

Personally I would not go with the doggear set. I think it would make the car miserable to drive. I would do this only if I were creating a strict race car. Quaife also makes syncros. They are, of course not as strong.
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1992 Subaru SVX LS-L - Heavily modded turbo
2002 Subaru Impreza WRX- Turboxs stg3 & Susp. Mods
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  #18  
Old 02-16-2002, 08:43 AM
svxed
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xt 4turbo trans

Will a 87 xt turbo manual trans and diff make a good swap for a 92 svx? I have the hole xt car but don't know if they are strong enough to handle the power or if they would fit? Thanks for the info. Rob
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  #19  
Old 02-16-2002, 03:28 PM
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huck369 huck369 is offline
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Re: xt 4turbo trans

Quote:
Originally posted by svxed
Will a 87 xt turbo manual trans and diff make a good swap for a 92 svx? I have the hole xt car but don't know if they are strong enough to handle the power or if they would fit? Thanks for the info. Rob
Nope won't work, the XT's and GL had a different bell housing than the SVX,Legacy,Impreza does, even the XT6 has the old bell housing.
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92 SVX LS-Tour Magnaflow Exhaust, 5-Spd-AWD
88 XT6 AWD 5-Speed "Bride of FrankenWedge"
15 Impreza Premium Sedan
15 Crosstrek XV 5-Speed
My 5-Speed "How-To" Write-up
1976 Pontiac Firebird Formula
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  #20  
Old 02-16-2002, 09:11 PM
cdigerlando cdigerlando is offline
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Another Option

Chalek par-engineering has come up with a syncrynous gearset for the new WRX and the RS type 1 and type 2 transmissions. This gearset is supposed to handle 450 HP and 400 ft/lbs of torque. Enough for even a modified EG33 motor.

http://www.i-club.com/

Do a search on this site look under Chalek. Sorry I could not do a direct link. I am not sure if this will work with a 1999 RS transmission? Maybe someone else will know. I am sure that the older model RS would bolt up. Then you just have to go through all of the other crap that Huck went through to make it fit. I might have done this if this was available when my tranny went, but I did the Level 10 instead. It would be great to see one of you guys try this though. Oh yea, the RS has a hydraulic clutch too. I would suggest an ACT street clutch and a chromoly lightened flywheel. Check out the site and let me know what you think.
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  #21  
Old 02-17-2002, 08:56 AM
svxed
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Question how about a 96 impreza auto

Is the 96 impreza 4sp auto the same as the svx. Will the 4.11 diffs fit the svx trans. My trans seems to be ok but the diff is cracked. I am trying to decide what is the best fix and of course the most fun in the end.
Rob
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  #22  
Old 02-17-2002, 10:11 AM
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huck369 huck369 is offline
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Re: how about a 96 impreza auto

Quote:
Originally posted by svxed
Is the 96 impreza 4sp auto the same as the svx. Will the 4.11 diffs fit the svx trans. My trans seems to be ok but the diff is cracked. I am trying to decide what is the best fix and of course the most fun in the end.
Rob
The Impreza Front diff will work, but be sure to get the matching rear diff.
The 4:11's will make it a lot funner at the stoplights, at the cost of a little less top end (130MPH instead af 150mph-like I ever go that fast anyway )
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92 SVX LS-Tour Magnaflow Exhaust, 5-Spd-AWD
88 XT6 AWD 5-Speed "Bride of FrankenWedge"
15 Impreza Premium Sedan
15 Crosstrek XV 5-Speed
My 5-Speed "How-To" Write-up
1976 Pontiac Firebird Formula
Current Count of Subaru's Owned.... "70"
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  #23  
Old 02-17-2002, 01:27 PM
cdigerlando cdigerlando is offline
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Auto conversion

Why would you go through the expense of retrofitting to a RS auto? Seems like a lot of work just to shorten the gears. Plus it will probably not be built as strong. I happen to like the SVX gears. One thing about the SVX is it is a midrange monster with a decent launch due to the AWD system. I raced an older model z28 (1992 or so at the track) and pulled him the whole way, really pulling away in the midrange. Don't forget, the SVX has a whole hell of a lot less drag than an RS or even the new model WRX. The SVX is a great GT car with a real flat torque curve (especially when turbocharged). I don't think these gears will gain you that much bang for your buck. Now do a standard trans conversion.....well that is a different story.

BTW huck any milage data yet on the SVX 5 speed?
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  #24  
Old 02-18-2002, 05:24 AM
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huck369 huck369 is offline
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Re: Auto conversion

Quote:
Originally posted by cdigerlando


BTW huck any milage data yet on the SVX 5 speed?
I guess you mean Gas Mileage? if so it's been getting about 19MPG City driving, but It sets running for 10-15 minutes every morning while we wait on the school bus, haven't really checked the Highway mileage, but guessing on the short trips I've taken probably in the 25-27 range.

Not to bad for a car with 150k on it, still no 0-60 or 1/4 mile times as I'm still running the weak clutch.
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92 SVX LS-Tour Magnaflow Exhaust, 5-Spd-AWD
88 XT6 AWD 5-Speed "Bride of FrankenWedge"
15 Impreza Premium Sedan
15 Crosstrek XV 5-Speed
My 5-Speed "How-To" Write-up
1976 Pontiac Firebird Formula
Current Count of Subaru's Owned.... "70"
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  #25  
Old 02-18-2002, 02:22 PM
cdigerlando cdigerlando is offline
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Gas Milage

My milage went from about 22 to 19 with the conversion from the OEM automatic to the Level 10 with the modified stall speed and HP torque converter. I would expect the same numbers as you (if you are tuned up well with new plugs and timing belt). Let me know when you can verify this.

BTW, what do you think about the Chalak gearset I posted? Any thoughts on using this when yours breaks? I wonder if the RS has the same dimentions as your legacy transmission. If so this would be easy to retrofit. I'm talking way in the future though.

Have you ever considered standardizing your process and putting together kits. It seems like you have licked a lot of the little details associated with this conversion. I think the Chalak rebuild of the RS transmission would suit even the most modified SVXs yet done on this site. You could even do staged advances for those that cannot afford the gearset, and just want to have the conversion done. Heck, if you could do a kit with illustrated instructions, a real good subaru mechanic could put this together.

I may do some instructions with drawings on the Tec II when it is completed to my satisfaction.

I think a low level of modifications including porting and polishing with used 300 ZX turbo injectors, Tec II, intake, exhaust, headers, and a standard transmission would produce a 300 - 350 HP stage of the SVX that would be incredibly fun to drive and very streetable.
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  #26  
Old 01-18-2006, 04:33 AM
suby_fam suby_fam is offline
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subscribed!!
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  #27  
Old 01-18-2006, 05:29 AM
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huck369 huck369 is offline
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Wow, I hadn't seen this thread at the top for a couple years!
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Huck
Subaru Ambassador
92 SVX LS-Tour Magnaflow Exhaust, 5-Spd-AWD
88 XT6 AWD 5-Speed "Bride of FrankenWedge"
15 Impreza Premium Sedan
15 Crosstrek XV 5-Speed
My 5-Speed "How-To" Write-up
1976 Pontiac Firebird Formula
Current Count of Subaru's Owned.... "70"
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  #28  
Old 01-18-2006, 05:58 AM
suby_fam suby_fam is offline
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Quote:
Originally Posted by huck369
Wow, I hadn't seen this thread at the top for a couple years!


You're welcome .. Hehehe!!
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  #29  
Old 01-18-2006, 06:55 PM
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TomsSVX TomsSVX is offline
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wow we have come a long way since 02...damn

Tom
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  #30  
Old 01-19-2006, 01:39 PM
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Conn SVX Conn SVX is offline
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I didn't se any explanation on how to fab the mounting of the TRANY. what do u need . I see people mention small car kit. u didn't use one?
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