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Lynn · 09-08-03, 10:28 PM

[ QUOTE ]

Ultima use the Porsche G50/60 'box and or the 996 (getrag) 'box, both inverted. There is a breather mod they use but other than that I'm not sure exactly if there are any internal mods.

[/ QUOTE ]

There are a few things that can be done. First is to install a new input shaft seal. When the transmission oil level is brought up enough to provide adequate oiling, the oil level is above the input shaft. A compromised seal will lead to obvious problems. The other, I just thought of, is to relocate the speed sensor up out of the oil. Not that the oil will attenuate the induced voltage, but that the magnet will be exposed to any suspended ferrous filings. Build up of this would attenuate the magnetic field. Lastly, one can relocate the full plug. However, I just made a dip stick out of a tie strap that is put into the old fill hole and held against the threads at the bottom of the hole to read the oil level. (Oil should be at least to the level of lower shaft in transmission.)

09-08-03, 10:28 PM	#15 (permalink)
Lynn llarsen Admin Join Date: Jun 2003 Location: Raleigh, NC GT40: Sabre Posts: 2,070 Rep Power: 29	Re: Low Engine C of G / Inverted Gearboxes [ QUOTE ] Ultima use the Porsche G50/60 'box and or the 996 (getrag) 'box, both inverted. There is a breather mod they use but other than that I'm not sure exactly if there are any internal mods. [/ QUOTE ] There are a few things that can be done. First is to install a new input shaft seal. When the transmission oil level is brought up enough to provide adequate oiling, the oil level is above the input shaft. A compromised seal will lead to obvious problems. The other, I just thought of, is to relocate the speed sensor up out of the oil. Not that the oil will attenuate the induced voltage, but that the magnet will be exposed to any suspended ferrous filings. Build up of this would attenuate the magnetic field. Lastly, one can relocate the full plug. However, I just made a dip stick out of a tie strap that is put into the old fill hole and held against the threads at the bottom of the hole to read the oil level. (Oil should be at least to the level of lower shaft in transmission.)