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964 TT build - Need help with gearbox choice/ratios

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Old 03-05-2018, 08:12 AM
  #751  
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Originally Posted by Penguinracer View Post
Guilty admission - I've been regularly loitering with intent on the 964 boards waiting to hear how this magnificent project is progressing!
It would be great to get updates on the running-in and tuning process.
Hey Tim,

Thanks for the kind words, really appreciate that. I have been on Rennlist for years and got so much solid advice here, I feel like I owe it to the community to give back and share my findings and progression.
This year has been slow, as I had to do a complete rebuild of the engine and ran into some unforeseen issues. And luck will have it that the moment I can pick up the car after a year not driving in it I broke my left foot during sports...
But the car runs amazing. I could already tell by driving it from Hamburg to Amsterdam that the last updates to the engine are quite special. The main things that changed are the new pistons, the large valve & flowed heads, new cams, GT3 crank, GT3 oil pump and larger stroke&bore to 4.0L. It feels like the character of the engine changed quite a bit as with the very conservative tune it feels just the same as it did in the full tune with the engine I had before! Of course you are in unknown territory when you do a project like this. You change things and hope it works better.
As soon as I get to drive a bit more I'll post some findings. I'm definitely curious how the final tune will turn out on 98 fuel, I'm hoping some number around 750hp, that would be incredible.
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Old 03-05-2018, 08:33 AM
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Originally Posted by Cazzo Super Velo View Post
Good to read it's back!
Must have been a long wait...
Please keep us informed on the brakes, must be the first 964 with carbon brakes?
So good to drive again!
The brakes are great, just cold feedback needs a bit more milage to improve. They told me between 200-500km when driven hard.
I haven't seen any other 964's with carbon brakes. Yeah Singer, but are those still 964's? I guess. Or not.
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Old 03-05-2018, 08:53 AM
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Here are some photos of the new brake system. Only thing I'm wondering is if I need to change the P/V, it is standard 964 C2. If anybody can share some ideas based on my configuration that would be great!

This is my brake system now:
-Front and rear 993TT caliper, front&rear 322mm rotors
-Pads are Pagid RSC1
-993 master cilinder (23,81mm)
-993 vacuum (9ö)
-Original PV (45bar)
-Castrol SRF brake fluid
-Race ABS from BMW E30 M3 Cup



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Old 03-11-2018, 07:46 PM
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Gorgeous day around Amsterdam. Went for a drive, did some photos.
Attached Images         
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Old 03-11-2018, 11:56 PM
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Beautiful shots. You definitely want a C4 m/c to help with those brakes.
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Old 03-12-2018, 04:47 AM
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Originally Posted by tjb616 View Post
Beautiful shots. You definitely want a C4 m/c to help with those brakes.
I'm not sure why. I'm with a 993 m/c and vacuum now.
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Old 03-12-2018, 06:33 AM
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Car looks awesome! Just read the first 12 pages will read more when I get time. Great thread
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Old 03-12-2018, 06:38 AM
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Only missing bit from your brake spec is what carbon ceramic discs you are using and where from...Could you share that information please?

I did a bit of work with Freno the other year but nothing came of it. I nearly pulled the trigger on a 997 cup set-up a couple of times but wasnt sure if I was going 17" rims, but your solution sounds like the dream!
https://rennlist.com/forums/964-foru...ith-freno.html

On the master cyclinder how about a modified 997GGT3RS - modified as per Snowmouse on here:
https://rennlist.com/forums/964-foru...s-maybe-4.html

This is my brake system now:
-Front and rear 993TT caliper, front&rear 322mm rotors - Which ones?
-Pads are Pagid RSC1
-993 master cilinder (23,81mm)
-993 vacuum (9”)
-Original PV (45bar)
-Castrol SRF brake fluid
-Race ABS from BMW E30 M3 Cup
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Old 03-12-2018, 10:36 AM
  #759  
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I'm intrigued regarding the rear brake setup...
993tt rear calipers require bigger discs that don't allow you to keep the park brake!
So what have you done here?
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Old 07-23-2018, 11:09 PM
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Whatever happened to the Volk wheels you were going to put on? I'd love to see a picture of them as I'm leaning towards buying them for mine. Thanks.
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