| [ Total Views: 944 | Total Replies: 3 | Thread Id: 1200 ] |
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 speedster356
A.k.a.: Peter Mcleod
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| posted on October 13th, 2002 at 09:36 PM |
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Off topic question, Subaru gearbox strength?
I'm planning for an engine swap for the Spyder over winter. I'm going from the EA82T Subaru engine/gearbox (mid mounted) to EJ20T
engine/gearbox. But I have heard that when I convert the gearbox to 2WD or use a stock 2WD gearbox I will have problems with the gearbox strength...or
lack of it. Anyone have any dealings with these gearboxs?
Spyder-WISD 07-09-05 11.6s @ 125 MPH
Speedster-WISD Nats 05 14.4s @ 89 MPH
Jet cruiser-Coogee 22-09-05 900 deg C @ 110,000 rpm
Weaseling out of things is what separates us from the animals....................Except the Weasel.
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1303Steve
A.k.a.: Steve Carter
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| posted on October 13th, 2002 at 11:46 PM |
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Hi
I have heard that they are not very strong, check this link out http://www.gt40club.clara.net/technics.htm#Transaxles
1302Steve
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555bug
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| posted on October 14th, 2002 at 11:28 AM |
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I have several friends with turbo 4wheel drives and I can say that these box's are pretty strong when driven normaly. Problems arise when
dumping the clutch at 6000 rpm, however this should be no problem for your car as I imagine its a load lighter than the porky 1200kg wrx. I've
helped a mate put a vr4 engine gearbox into his first gen Hyundi excel, a few mods with a tig and now its a 2wheel drive box. No problems  I'm sure all the bad things you hear about the rex box are simply
related to the amount of traction and torque avaliable. Oh and later box's are said to be stronger although I really can say personaly.
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speedster356
A.k.a.: Peter Mcleod
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Plastic not Classic Racing
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| posted on October 14th, 2002 at 03:34 PM |
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ahhhh
yeah My Spyder only weighs 585kgs with the EA82, so there is not much weight to get rolling.
And I promise not to give it a bootfull off the line.......yeah sure!
Steve, tell me about corner weighting?what is it? How do you do it? Does it set the same spring rate at each corner of the vehicle? I've still
got torsion bar on the front with 914 and coilovers on the rear so I guess corner weighting is not much use except for the rear...true?
Spyder-WISD 07-09-05 11.6s @ 125 MPH
Speedster-WISD Nats 05 14.4s @ 89 MPH
Jet cruiser-Coogee 22-09-05 900 deg C @ 110,000 rpm
Weaseling out of things is what separates us from the animals....................Except the Weasel.
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1303Steve
A.k.a.: Steve Carter
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| posted on October 14th, 2002 at 11:12 PM |
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Hi Peter
http://www.renaissance-racing.com/GRTechtips/cornerweight.html Visit this site to find out more about corner weight
testing. You will be limited in the amount off adjustment you can do with your car, but getting it as close as you can will be better than doing
nothing at all. In a street car situation you will get varying loads from fuel being used carrying passengers etc. Im going to make my own test unit
using hydraulics to lift the each wheel, I will then measure the pressure in the system on each wheel to find out the weight of each wheel. This will
compare apples with apples.
1302Steve
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speedster356
A.k.a.: Peter Mcleod
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| posted on October 15th, 2002 at 07:59 AM |
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Yes there must be an advantage to having front corners spring rate (weight)the same and the rear corners the same. Todays project at work will be to
make a hyd corner weighting system, I think we'll bolt up to a couple of wheel studs and use a calibrated test gauge on the jack. This is
probably your method as well.
Thanks for the tips.
[Edited on 14-10-2002 by speedster356]
Spyder-WISD 07-09-05 11.6s @ 125 MPH
Speedster-WISD Nats 05 14.4s @ 89 MPH
Jet cruiser-Coogee 22-09-05 900 deg C @ 110,000 rpm
Weaseling out of things is what separates us from the animals....................Except the Weasel.
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1303Steve
A.k.a.: Steve Carter
Scirocco Rare
Posts: 8621
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| posted on October 15th, 2002 at 11:50 PM |
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Hi
I was going to use an L shaped bracket, the top part of the L would fit into the centre of the wheel, my wheels have a fairly large hole in the
middle, the bottom part of the L would touch the ground, then you would apply force in the middle of L to just lift the wheel enough to move a piece
of paper under it. Did you understand this, OK its late and I just finished work, get my number of your partner in crime at work and give me a call.
You can buy a machine off the shelf to do this but I think they are about $300. I have already bought a few bits to use on my setup maybe we could
combine forces?
1302Steve
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speedster356
A.k.a.: Peter Mcleod
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Plastic not Classic Racing
Posts: 1624
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Mood: Producing boost again in NZ
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| posted on October 16th, 2002 at 08:07 AM |
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No problem Steve I'll arrange the calibrated gauge. What units and range do you think? I might be at the meeting on Thursday night so we can talk
then.
Cross training an Instrument Tech at work in the fine art of engine installation, and he seems pretty happy about it.....
[Edited on 15-10-2002 by speedster356]
[Edited on 15-10-2002 by speedster356]
Spyder-WISD 07-09-05 11.6s @ 125 MPH
Speedster-WISD Nats 05 14.4s @ 89 MPH
Jet cruiser-Coogee 22-09-05 900 deg C @ 110,000 rpm
Weaseling out of things is what separates us from the animals....................Except the Weasel.
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