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My Bf Xr6 Na Engine With Turbo


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It's alive! Reversed her out of the shed, powerglide works. Just need to finish putting a few things back together and it'll be ready for a test drive. Haltech ECU is amazing, so many options and ea

Got a few things done lately. Modified my power steering pump to relocate the reservoir, brought an FG XR8 res and bracket and mounted it near the booster. Decided I'd get a transmission builder to

Had a crack at fitting the shifter today, made some mounting brackets out of some 3mm thick aluminum right angle plate. Had to play around a little with the height to get the shifter to sit where I wa

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Got the diff back yesterday, Truetrac and 3.07:1 gears with the 1350 yoke on the pinion. Hopefully get it back together on the weekend, see how I go.

Also got the FG fuel tank in and set up. e1c108b4dc9ff619fc1f2b184eb330c4.jpgfcab74fd110486c82f498bbe194c43a0.jpg

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Because it’s a helical gear based mechanism vs a wet clutch type LSD the lash within the gears are probably designed by LG5 viscosity to bind up that gap and offer the correct interference there afterwards. It’s based around pure thickness and stability hence friction modifiers free

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Through a bit of testing I favour my above picture (85/140 penrite ) for the Trutrack as it’s the quietest yet maintains perfect engagement. 

 

You'll find that Trutracks are a fairly clunky style LSD and can actually really feel lacking in confidence with lower than 140 weight oil but this is purely my opinion from doing quite a few installations and services to come up with this. 
 

back when Harrop did the Trutrack they were brilliant, Today’s Eaton Trutrack is very average of a LSD but can take abuse well, wouldn’t recommend for a “nice” daily vehicle 

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Got the diff and cradle back in today. Still have to finish bolting up the other side but I've had enough today. Tailshaft finally fits perfectly now, the diff bushes just needed to be seated 7mm back as per Superpro instructions. a0fbb49818e71a38e10566d1e374100e.jpg2661f935be066cdf5ccfbca7087d6cfe.jpg08edf00e06e55aa50e50ca2664b0b819.jpg

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