blade7

Never had working air con in my car, think I'll remove the compressor and evaporator when I fit the bigger turbo. Never turn the radio on either, prefer to listen to the exhaust.

Droops83

I have a customer with a Euro/RoW-spec 964 RS with one of those UK-made electric A/C kits. It's a slick setup, but I decided to check the current draw with the electric compressor running: it draws a full 60 amps! This car had an upgraded alternator installed, but the 964 RS also uses a larger under-drive pulley for the alternator, which meant that the system was actually discharging the battery at idle! I warned the customer to not make a habit of sitting in LA traffic with the A/C running . . . .

Penguinracer

If Jon Mitchell was reporting 417 fwhp & 398 lb/ft with the following, I think should be doing better than that:

https://forums.tipec.net/viewtopic.p...=14653&p=95352

(1) Ball bearing turbos (KKK type hotside);
(2) 3 inch exhaust system (modified Fabspeed);
(3) dual port wastegate;
(4) electronic boost controller;
(5) 72 lbs injectors;
(6) Vitesse MAF;
(7) Piggyback fuel computer;
(8) 3 bar fuel pressure reg;
(9) one of our intercoolers.

Everything else bone stock (cam, intake, cylinder head & crossover).

Chris that electric a/c wouldn't be viable for me - we tried FOUR different alternators before we found a tiny one which worked with the dry-sump system & power steering (Mitsu 120A).
That's a huge current draw.
Racing cars use small electric a/c systems - ok they're not to luxury car standard, but I wonder if there is an electric a/c system from the motorsport world which could be adapted for road & track sports car?
​​​​​​​I seem to recall that the C6 Corvettes at Le Mans had a very lightweight electric a/c system.

Penguinracer

...Jon Mitchell's 417 flywheel hp & 398 lb/ft were from an Alusil 2.5 litre...I'm hoping for better...

blade7

Well I did say 440 bhp, and I don't know if Jon said how much boost was being run. I think some people used to run 20-22 lbs boost back in the day, but that was probably for a good time rather than a long time. Interesting reading that old thread though.

Penguinracer

333pg333

Lol...you noted my 'signature'...

...having said that, if I had my time again what would I do differently...lots!

blade7

I'd buy the turbo with a 3.2 engine, that I was offered. After other people had sunk a load of money into it.

JustinL

My stock 8v was old and leaking so badly that I knew I'd have to take it out to rebuild it... then I came up with a hilarious idea to do a 16v turbo engine on a budget! I tried to keep it reasonable and it wasn't brutal, but still expensive. I made do with used parts when I could and did all the work myself. I also have a couple other track cars that kept me driving during the build. I'm not really interested in testing the limits of what it can do as I'm pretty entertained with the 370rwhp that it dyno'd at, and I think that power level is sustainable without breaking too much. 10 years ago, I could keep up with a lot of the new cars at the track, but modern stuff is so fast that it's not worth trying to keep up in the arms race. 951s are really old now and it's ok for me to just go have fun and drive it home.

· Refreshed Stock S2 block and head

· 9products engine mounts

· A/C delete

· Lindsey racing pan baffle

· Pauter rods

· Custom Arias 9:1 compression pistons

· Racing cam chain and new tensioner pads

· Precision 6062 with tangential T4 .58 A/R

· SFR Stage 2 header system w/crossover 321SS and ceramic coated

· Lindsey racing modified 3” downpipe

· Lindsey racing 3” exhaust to the tail pipe

· Tial 38mm wastegate

· 2.5” custom hard pipes with HKS SSQV

· 4” inlet pipe

· Custom hacked up 968 intake manifold

· LS truck coils

· 968 fuel rail and Siemens 830cc/min fuel injectors (110324)

· 044 Fuel pump

· Lindsey racing fuel lines (AN fittings)

· SFR front mount intercooler

· Wizard radiator

· SFR nose mount oil cooler

· Fidanza lightweight 951 flywheel

· California clutch 6 puck spring centred disc

· Blaszak pressure plate

Suspension and brakes:

· KLA strut tower brace

· High strung control arms with bolt on ball joint option.

· Leda adjustable shocks

· Racer’s edge lower rear shock mount

· Hypercoil springs 375 front, 600 rear

· Delrin and Elephant aluminum torsion bar mounts

· Square tube torsion bar delete (the Bruce Bar)

· Elephant spherical bearings in rear trailing arms

· Adjustable camber plates

· Manual rack + associated gear

· Big Red 928 GTS front brakes

· Stock 951 rear brakes

· 2 sets forged TRmotorsports F2 18X10 wheels

· Forged Kinesis K27 17X8 and 17X10 wheels

Exterior

· AIR front splitter

· Clear lenses for signal and side markers

· LED bulbs in brake lights

· LED tube in front blinker for running light and indicator

· Slow flash relay to turn off hyperflashing with LED

· Rear light bar and license plate relocation

· Headlight motor delete (replaced with manual brackets)

· GE nighthawk LED retrofit LED headlights

Interior

· Sparco steering wheel

· Manual windows

· Sparco ergo seats

· Autopower bolt in roll bar

· Manual sunroof

· Cup car center console

· Android double DIN head unit (megasquirt gauges)

· Speaker delete except for door speakers.

Monterrey

Penguinracer,

I don't think may car ever looked at nice as yore's looks. All these beautiful parts, all brand new. I wish you the best. I think we may share the same original color, Zermatt Silver.

Rob 3

Penguinracer,
Breathtaking and clearly thought out.
Thank you for sharing so much detail as well as the list of all involved.....just amazing, along with your perspective/philosophy of your desired end result.
Hopefully all will go to plan!

bergerac

Has anyone managed to get a response out of Ferrea lately? I'm interested set of their super alloy valves for a 968 head as they are potentially cheaper than the Porsche items but cannot get a response out of them, its almost time to sit up and call them in the middle of the night.

Penguinracer

I don’t know if he’s still there, but try Emmanuel Garcia.
emmanuel@Ferrea.com

bergerac

Thanks, I heard back today but Ill mentioned Emmanuels name, hopefully they still have the dimensions on record

bergerac

$110/valve now! Supposedly approx $60 back in 2019, still cheaper than Porsche valves I guess.