924Board.org

turbobob9242 · Joined: 08 Feb 2003 Posts: 138 Location: Hinckely Ohio

HI everyone.

I sent an email to the Phantom grip LSD people ad it looks like a nice alternative to the more expensive Quaiffe or Guard units.

Here is copy of the email and reply:

dear sir
the phantom grip 944 units have been tested over 500 whp and torque.

thank you
phantom grip
> This is a multipart message in MIME format.
>
> I have a hybrid car making way more than stock horsepower and
torque.
>
> How much torque can your LSD unit support??
>
> My application has a 86 944 turbo transmission.
>
> I estimate I have around 400 ft lbs of torque!
>
> I look forward to hearing back from you as I am very interested in
adding
> LSD to my car!
>
> WOW, 500 HP and or Torque!!!!
_________________
Bob Ward
80 9214 turbo, w 5.3 LS V8

Alex Roy · Posted: Thu Aug 21, 2003 7:09 am Post subject:

They said it has been tested at 500 hp and torque.......they never said it didn't fail with that much power

Just kidding.

Lizard · Posted: Thu Aug 21, 2003 7:56 am Post subject:

you pay for what you get the Quaiffe is a much better designed unit and will not destroy the internals of the tranny, not saying that the Phantom grip LSD unit will though
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3 928s,

924RACR · Posted: Thu Aug 21, 2003 10:18 pm Post subject: Diff options

Yeah, works great till it trashes the spider gears. A 951LSD is a cheaper alternative and will bolt into the 5-speed 924 trans (or the 931 trans), excluding the snailshells (which should use a 911 diff). They can sometimes be had for $500, though you can pay retail up to $1000USD. Quaifes are available new retail for $1200 or so from OG Racing (www.ogracing.com IIRC).
_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

CBass · Joined: 03 Nov 2002 Posts: 2807 Location: Vancouver, Canada

Has anyone actually used a 911 differential in a snailshell, or is this just theory?

I've read that the snailshell was based off the 915 tranny, but are the differentials interchangeable? Maybe we should start comparing part numbers

keith · Joined: 21 Sep 2003 Posts: 24 Location: Charlotte, NC

I know for a FACT that the phantom grip is ineffective in a 340rwhp 951.

I know because we installed it in a customer's car and tested it.
_________________
keith
86/9 951
the RUNT.

Lizard · Posted: Mon Sep 22, 2003 7:25 am Post subject:

the 930 lsd Diff will work in the G31
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3 928s,

CBass · Joined: 03 Nov 2002 Posts: 2807 Location: Vancouver, Canada

Has this been documented? If so, great, if not, I don't want to be the guy who spends $1200 on a GT or Quiafe diff and find out I'm gonna get soaked for a few hundred if it doesn't work and I need to resell it...

Also, I'd be looking for a lower ratio than the stock 4.7:1... My goal is to use a 9000rpm engine, so I'd want a lower final drive ratio.
_________________
'81 931 in various states of assembly

Joes924Racer · Posted: Tue Sep 23, 2003 8:01 am Post subject:

So like can we usea 911 diff and
would we want to is it a reaping
upgrade if so what years the same
years as the snailshell.
_________________
1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

turbobob9242 · Joined: 08 Feb 2003 Posts: 138 Location: Hinckely Ohio

Are you using a motor cycle engine??

Never head of anything other than Mazdo Wankle engine or motor cycle engines reving to 9000 on the street.
_________________
Bob Ward
80 9214 turbo, w 5.3 LS V8

Lizard · Posted: Tue Sep 30, 2003 10:02 am Post subject: Re: 9000 RPM engine??

Porschephile · Joined: 04 Nov 2002 Posts: 825 Location: Denver, Colorado

the S2000 uses a motorcycle engine.
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werd B.