NS Dev
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| posted on 27/7/06 at 12:08 PM |
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daft but interesting question
Quick question, any ideas how it might be possible to arrange an external hydraulic pressure feed to an automatic gearbox such as a vauxhall cavalier
one for example??
I have been toying with the idea of removing the torque convertor from one and altering it to drive through a conventional clutch, but this then also
removes the hydraulic pump, which is obviously required for the shift hydraulics.
The idea is obviously to get a hydraulic clutchless powershift box but with a normal clutch for the startline and to avoid the parasitic losses of the
convertor.
Problem is I have no idea what pressure and flow requirements the clutch packs in the box have!
The idea is to have a play with the old grasser once I have built the new one, and sorting out a powershift box was one idea that might be cheap and
effective!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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ned
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| posted on 27/7/06 at 12:10 PM |
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no idea really but would a hydraulic power steering pump be able to be rigged up in any useful way?
beware, I've got yellow skin
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3GEComponents
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| posted on 27/7/06 at 12:23 PM |
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I remember reading somewhere about 4x4 racers (land rover/range rover specials) using small torque converters for racing, they gave fantastic
acceleration but tended to overheat on long stints.
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MustangSix
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| posted on 27/7/06 at 01:29 PM |
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If you do a google for B&M Clutchflite or B&M hydro stick transmissions, you'll find some info.
Basically, you add a clutch in place of the torque converter and you're left with a planetary transmission that can be shifted without a clutch
after launch. It's primary application was in drag racing where you are more concerned with upshifts during the 1/4 mile run.
Also do a Google for the Wilson preselector transmission, another planetary that was popular in racing in the 30's thru the 50's.
[Edited on 27/7/06 by MustangSix]
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paulf
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| posted on 27/7/06 at 08:42 PM |
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Isnt the hydraulic pump seperate to the torque converter? If so you just need to arrange an input shaft and clutch some how.
Paul.
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