The V8 Owners Forum -

ive read about the phantom, some like it others dont, ive sent one the dealers an e-mail to see if they do one for the rover sd1 axle, does anyone know how much the grips are, rich And thought i better ask, with the phantom in a m.g they work fine ,but what about a heavy car like a rover sd1, .

BTW my axel is a shortened SD1 and not the standard MGB or MGB V8 axel, so they do one for sure.

I was wondering how progressive the Phantom Grips are, and whether they lock the diff suddenly when grip on one wheel is lost, this can have you off the road very quickly.

Perry had one in his BV8 but has now welded the diff I believe.

Kevin.

i thought Perry didn't use one in the end and welded it up first because that was the cheapest option?? IIRC the phantom grip is less than £300 so half the price of Quaife, although with quaife you are getting the best of the best.

less than £300, sounds good to me ,uness i snap it quick, rich

I'm sure he can tell you himself, but Perry still has the phantom.
He just welded up a spare diff to see how it'd behave.

Apparently, it doesn't go round corners very well...

They were a lot cheaper than that, about £180 but last one i saw was I think £225.

Remember compared to a Quaife it is a pretty crude bit of kit.

http://www.importperformanceparts.net/i ... p-all.html

For a SD1 axle look under Triumph TR7/8

Kevin.

Crude it may be but it stood up with ease when i drove it, and the torrent of abuse a certain engine builder gave it. The new engine let go before the diff did

I think it depends what car it goes in. Mine is a stripped MG with SD1 axel + grip witha fair amount of torque/power, but in an SD1 which weighs about twice as much, I wouldn't be so sure

I've got a quaiffe.

No idea how it handles though, i've never actually seen it!

The PG in my Salibury axle was fine until I munched some cogs and bent it. The fault was due to one of the small pinion cogs welding itself to the main pin and snapping it in half.
The PG is still ok apart from some shrapnel damage which can be smoothed out.

If you talk nicley to Jon Savage at Cambridge Motor Sports he may get Peter in the workshop to alter the angle of the hole in the PG to make it hook faster. I know the PG is a simple bit of kit, but it can actually be tuned a little.

Its not a harsh lockup either. If I burnout at 5000 rpm it locks up well. But if I just keep the revs down around 1800 it wont actually lock as its not getting enough resistance. But when you pull onto amain road and give it the beans the PG would hook up and do me a nice drift with fast acceleration.
I rang Quaiffe to ask if their unit in my MGB axle would handle over 400 ft/lbs of torque and they said they would not guarantee it.

JC!
I'll test your quaiffe diff in 2009 if you want me to. Should only take me about 4 hours to swap it out for my welded axle

will find out about them then, they use them in dodges and chevy so weight should be ok ,i hope, im having a new crown wheel and that fitted next year so would like to have it done then, how much are they rich