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Retrofitting Turbo brakes to an '84 NA?
What would be involved in retrofitting a set of 951/S2 brake calipers to an '84 NA car? Thanks!
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Michael Sans Porsche...for now 2009 Mazdaspeed 3 Grand Touring daily driver / DS autocross toy 2010 Subaru Forester X Limited - wife's daily driver |
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10-13-2005, 06:46 AM
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least common denominator
Join Date: Aug 2001
Location: San Pedro,CA
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It can be done but you will have to change out some of the parts (more than just disks and calipers). Someone more knowledgeable than me will post a parts list for you.
The stock brakes on the 1984 944 are pretty good.
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Gary Fisher 29er 2019 Kia Stinger 2.0t gone  1995 Miata Sold 1984 944 Sold I am not lost for I know where I am, however where I am is lost. - Winnie the poo. |
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10-13-2005, 07:09 AM
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There's a pretty recent thread about this, I think it was CJF's post about upgrading brakes. Anyway... there seems to be a lot more to it than you'd think. That $750 bolt-on caliper upgrade is looking really good to me...
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1983 944 - Sable Brown Metallic / Saratoga / LSD : IceShark Light Kit |
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10-13-2005, 07:20 AM
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Struts, spindles, hubs, rotors... basically replacing the entire front suspension assembly.
The consensus seems to be that the best upgrade for 944 brakes is the Wilwood/Rennbay 4-piston caliper bolt-in set.
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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10-13-2005, 07:22 AM
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Thanks guys, that's exactly what I needed to know. I'm buying an '84 944 in the next couple of weeks and plan on making it a track car that will be driven on the street as well.
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Michael Sans Porsche...for now 2009 Mazdaspeed 3 Grand Touring daily driver / DS autocross toy 2010 Subaru Forester X Limited - wife's daily driver |
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10-13-2005, 07:29 AM
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What is wrong with your 911T that makes it so cheap?
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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10-13-2005, 08:42 AM
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probably lacks a motor and tranny
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'91 Jeep Cherokee 4.0L HO - Daily driver '83 Callaway 944 2.5L turbo - Soon to be daily driver '83 Porsche 944 NA - sold '78 Porsche 924 NA- RIP '89 Porsche 944 S2 - Parted Looking for a nice 944S for a daily driver. |
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10-13-2005, 08:44 AM
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least common denominator
Join Date: Aug 2001
Location: San Pedro,CA
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Quote:
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Gary Fisher 29er 2019 Kia Stinger 2.0t gone 1995 Miata Sold 1984 944 Sold I am not lost for I know where I am, however where I am is lost. - Winnie the poo. |
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10-13-2005, 09:25 AM
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Quote:
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Michael Sans Porsche...for now 2009 Mazdaspeed 3 Grand Touring daily driver / DS autocross toy 2010 Subaru Forester X Limited - wife's daily driver |
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10-13-2005, 10:52 AM
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least common denominator
Join Date: Aug 2001
Location: San Pedro,CA
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You may want to try the brakes before you do any upgrading, I can almost dislocate my eyeballs with my stock brakes.
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Gary Fisher 29er 2019 Kia Stinger 2.0t gone 1995 Miata Sold 1984 944 Sold I am not lost for I know where I am, however where I am is lost. - Winnie the poo. |
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10-13-2005, 12:48 PM
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Scott makes a good point. Try changing the a more aggressive pad before switching the brakes.
If you can lock the wheels up at speed, your brakes are more than adequete for the car. Unless your doing serious track duty with your car, the stock brakes (Assuming they are in good working order) are more than adequete. But i can understand wanting those 4-piston's from Rennbay...hell i am tempted to purchase them and the most my car see's is autocross.
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Jon 1988 Granite Green 911 3.4L 2005 Arctic Silver 996 GT3 Past worth mentioning - 1987 924S, 1987 944, 1988 944T with 5.7L LS1 |
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10-13-2005, 02:01 PM
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Thanks for the advice guys, I think that's what I'll do, probably switch to a quality crossdrilled rotor and more aggressive pads for track use only.
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Michael Sans Porsche...for now 2009 Mazdaspeed 3 Grand Touring daily driver / DS autocross toy 2010 Subaru Forester X Limited - wife's daily driver |
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10-13-2005, 02:08 PM
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Quote:
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keep the dream alive! 1988 944 NA (purple) |
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10-13-2005, 02:31 PM
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not necessarily... you can get turbo struts without changing the assembly, non?
I don't know, I'm still learning this stuff too.
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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10-13-2005, 06:39 PM
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If anyone is intersted in doing the conversion on a 84 or 83, I have a set of front spindles, bubs, and decent rotors from a 86 951 for sale.
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86 944 daughters 88 944 step-sons 07 Ranger 4x4 I have tons of spare parts, let me know what you need. |
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10-13-2005, 07:43 PM
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Won't there be speedometer issues? IIRC, early 944's pickup at the front brake, late 944's at the tranny. I don't believe the turbos (all with the late speedo design) are equipped to measure the car's speed upfront.
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'86na, 5-spd, turbo front brakes, bad paint, poor turbo nose bolt-on, early sunroof switch set-up that doesn't work. Malo periculosam, libertatem quam quietam servitutem. |
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10-14-2005, 03:24 AM
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That Guy
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That is a good point. The speedo cable sticks through the dust cover on the front left hub and roates with it. I doubt the turbo hubs have the same hole to stick the cable through.
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Jon 1988 Granite Green 911 3.4L 2005 Arctic Silver 996 GT3 Past worth mentioning - 1987 924S, 1987 944, 1988 944T with 5.7L LS1 |
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10-14-2005, 08:00 AM
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Man, if you would do a search, some guy named "tifosiman" has posted ad naseum about the parts needed to do the swap.
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1985.5 944 Club Sport My P-caronline Profile "A good time to keep your mouth shut is when you're in deep water. "-- Sidney Goff |
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10-14-2005, 08:57 AM
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he sounds like a shady character and I don't believe i would trust him! 
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keep the dream alive! 1988 944 NA (purple) |
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10-14-2005, 09:55 AM
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Join Date: Oct 2002
Location: Miami
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Hey-
Why upgrade the brakes? What you really need is to bolt on a turbo for mad track speeds. |
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10-14-2005, 01:11 PM
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1983 Porsche 944 2.5 NA
2007 Porsche Cayman S
The Viridian Falcon
SOLD! -- The Purple Pig
SOLD! -- Mighty Mouse
SOLD!! -- Alpine Wolf
The Kraut Burner
The Bratwurst Burner
Das Boost
85.5 Porsche 944 2.5 
