944 NA budget brake upgrade option
08-25-2022, 04:43 PM
#16
Race Car
Should be comparable in brake torque for a given line pressure which is nice. Those have really big pistons so even using a stock 944 NA brake rotor will make a lot of clamping force.
Downside is you would most likely need a bigger master cylinder to move enough fluid - which means the pedal will be harder. Not a big deal on a 944 with power brakes though.
Cost works out about the same as what I have here. I don't know if the Wilwoods will fit under a 15" wheel though?
Downside is you would most likely need a bigger master cylinder to move enough fluid - which means the pedal will be harder. Not a big deal on a 944 with power brakes though.
Cost works out about the same as what I have here. I don't know if the Wilwoods will fit under a 15" wheel though?
Since mine is an 87 I can run the 87 turbo rotors and the GTO calipers, correct? Would the master need upgrading with this setup? Running manual brake currently, stock stuff does well currently.
08-26-2022, 08:23 AM
#17
Rainman
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Thread Starter
Yes you could use the 87+ T rotors with the GTO calipers. You likely would need to adjust the shim/spacing of the caliper over the rotor though.
I also am running these un-boosted using the stock 944 MC.
I also am running these un-boosted using the stock 944 MC.
08-27-2022, 04:39 AM
#18
RL Community Team
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I haven't been on RL in a long time. Nice to see you still fighting the good fight! Someday I'll get my 944 running again and install Volvo 240 GTO brakes.
11-09-2022, 10:36 PM
#19
Race Car
I am currently upgrading to these on my 87… man these calipers are huge especially compared to the stock NA ones lol. I am still waiting on the 87 turbo rotors but have the GTO lines and calipers. I did a test for today with the stock NA rotor and sure enough it bolted right up. Only modification needed so far was to trim the brake dust shield and as mentioned a washer between the caliper and the knuckle to center the caliper.
Wondering if I should paint the calipers or run them in standard silver? If I paint them I would do bronze or gold to stand out with the red car.
It’s a shame the M030 rotor is 32mm thick otherwise it would probably work as well. Apparently
GTO owners couldn’t fit passed 29-30mm as the pads interfere.
Wondering if I should paint the calipers or run them in standard silver? If I paint them I would do bronze or gold to stand out with the red car.
It’s a shame the M030 rotor is 32mm thick otherwise it would probably work as well. Apparently
GTO owners couldn’t fit passed 29-30mm as the pads interfere.
Last edited by CyCloNe!; 11-09-2022 at 10:39 PM.
11-18-2022, 05:44 PM
#21
Race Car
I am in the process of installing these and if you are running an 87+ car with the 87 951 rotors and 04 GTO calipers it appears you need to shave off material from the inside of the mounting bracket, probably around 1/16 to 1/8in to center it with the rotor. With the NA rotors I needed a washer as a spacer to center. I think the turbo rotor thickness was added to more of the face than distributed.
Last edited by CyCloNe!; 11-18-2022 at 05:52 PM.
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V2Rocket (11-19-2022)
11-18-2022, 06:32 PM
#22
Race Car
After taking some measurements the caliper holes need to be milled about 1/8 inward for the pad to sit full face on the rotor (same as Spencer mentioned earlier). The caliper bracket face that mounts to the spindle needs to be filed down 1/16 as the 87 turbo rotor face goes outward more. Reminder this is for 87 NA cars doing the GTO Calipers with 951 rotors.
Last edited by CyCloNe!; 11-18-2022 at 06:34 PM.
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V2Rocket (11-19-2022)
11-19-2022, 06:44 AM
#23
Rainman
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Thread Starter
I am in the process of installing these and if you are running an 87+ car with the 87 951 rotors and 04 GTO calipers it appears you need to shave off material from the inside of the mounting bracket, probably around 1/16 to 1/8in to center it with the rotor. With the NA rotors I needed a washer as a spacer to center. I think the turbo rotor thickness was added to more of the face than distributed.
11-19-2022, 06:45 AM
#24
Rainman
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Thread Starter
After taking some measurements the caliper holes need to be milled about 1/8 inward for the pad to sit full face on the rotor (same as Spencer mentioned earlier). The caliper bracket face that mounts to the spindle needs to be filed down 1/16 as the 87 turbo rotor face goes outward more. Reminder this is for 87 NA cars doing the GTO Calipers with 951 rotors.
since the 951 rotor is 298mm then another 1/16" is about right (1/8" total)
11-19-2022, 02:14 PM
#25
Race Car
Well finally got these babies on. Sorry some reason I can’t get the system fully bled correctly but my new one man bleeder is trash.
using the 951 rotors you have to grind the bracket about 1/16 but you also have to grind that vane in back about 1/8 as well or you can’t move the bracket forward enough.
These pics were from the first side once I got them figured out second side went way easier
Last edited by CyCloNe!; 11-19-2022 at 02:20 PM.
11-19-2022, 04:06 PM
#27
Race Car
cut off wheel used like an angle grinder (couldn’t find my disk) these pics were taken before I finished just giving a rough idea. I leveled them out and checked the clearances with and without pads.
05-15-2023, 06:53 PM
#30
Rennlist Member
Great, my set that is coming has the originals that I can use for fitting. They are some nice SS lines on eBay, I will swap to them if all goes well. Found a shop that will cut the Caravan rotors before they ship them. A set of speed bleeders and fresh DOT 4 and it will be ready for my first trip to Road Atlanta and the PCA track day.
will post a photo of them on the car.
will post a photo of them on the car.