JV911

Hi all

Recently returned to Porsche ownership after a few years playing with Nissans and VWs.

I thought I would share my “RS-4” project, the details of which are below. The donor car was an incredibly clean, straight and rust free 1990 C4.

The skunk works at Auto-haus Hamilton have been entrusted to tackle the majority of the work. Auto-haus have 45 years’ experience in building some of Australia’s toughest circuit, rally and street cars. The car was purchased off another long term customer of theirs, so they knew the history of the car and what needed to be done.

We have taken some ideas (and lessons) from their Group 4 project, as well as the C2 RS, C4 Lightweight, even 918 Spyder, tweaked them and added plenty of our own.

Summary:

Mechanical
Engine blueprinted and balanced
Custom (undisclosed) grind Elgin cams
Titanium valve springs and retainers
Ported heads
Motec M84 ECU
993 RS valves
Mahle high compression, moly-coated pistons
Rothsport (Jenvey) ITBs and plenum
ARP rod bolts
993TT head studs
Heavy duty clutch
RS flywheel
Semi-solid engine and trans mounts
Fabspeed RSR headers and muffler kit (with cats)
Billet rocker covers
GT3 oil pump
Carbon RS heater pipe
Uprated fuel pump

Suspension, Brakes and wheels
Bilstein PSS10 coil overs and rear strut tops
Wheel alignment, corner balance and set ride heights
Brembo 355mm & 328mm brakes with 2 piece rotors
Braided lines
993 steering rack brace
Victor equipment "Zehn" wheels – 18x8 ET45 and 18x9.5 ET49
Pirelli P-Zero tyres - 225/40R18 and 265/35R18

Panel Work/Exterior
993 Cup mirrors
Rolled guards
Respray in GT3 RS Grey Black (7A1)
“Porsche” side decals
Ducktail
Engine lid hinge adaptors
Replace all rubbers and seals
Clear indicator lenses (front bar)
Brake ducts (front bar)
New tail lights
Rear reflector delete panel
Side indicators deleted
Headlight washers deleted
New headlight lenses and HID upgrade
New rear bumper for dual exhaust
New windscreen


Interior
½ cage
Sparco Evo seats
Sparco R-345 steering wheel
Rennline quick release
Rennline pedal pads
Rennline floor boards
Rennline billet gear **** & door locks
Wevo shift coupler
RS door trims
RS carpet
Dash, knee pads, door tops and centre console retrimmed in alcantara
Leather gearshift boot
Carbon fibre console inserts
New sun visors
New headlining
Schroth 6 point harnesses
Extinguisher
VDO headunit (CD9303UB)
Remove soundproofing

Miscellaneous
Oil hoses
Diff seals
Steering rack boots
Drive shafts
Drive shaft boots
Replace engine soundproofing
Overhaul air-con
New alternator
Alarm and 3 point immobiliser
And a few (i.e. a many!) other bits and pieces

Rendering of the finished project. Still to decide on whether the decals will be green or black.

JV911

As delivered:

One could have simply fixed up the miscellaneous bits and pieces, done a top end rebuild to address a broken head stud and driven it quite happily…but we had other ideas.

JV911

Trial fitting the wheels









Going to look mental with these Brembos behind them…

JV911

Goodies

Fabspeed RSR exhaust



355 & 328mm Brembos



Bilstein PSS10



ITBs



Rennline quick release

JV911

Engine teardown











Pitted rockers will be binned



Clean as a whistle

JV911

Current state. Next is to get the rollcage fitted (this week I hope) then it's off to paint

robt964

Great project! Looking forward to seeing this progress.

A few questions on these items here:

>Carbon RS heater pipe
>Uprated fuel pump
>Rear reflector delete panel

Would you mind sharing a few more details?

Chiefyb

Great project. These chaps seem to know their stuff!
Loving the colours as well!

NCB964

Wow! That's an impressive parts list and build. I'm looking forward to seeing the finished project on the streets. I'm sure you know that you're in safe hands with Grant and the AH boys.

Ps, any idea what your PSS10 weight in a box? I'm about to head to the states & am thinking of buying & bringing back via my oversize luggage.

Cheers
Nick

BLACK-BETTY

That's quite a build! You must be excited. Look forward to updates.

JV911

Thanks chaps

- Heater pipe comes off the fan an does away with the enormous blower. Seen here it cleans up the engine bay nicely http://vintagebus.com/rstube/tube-3.jpg
- Sorry dont have the specifics of the pump to hand. Injectors, plenum, linkages, pump etc all came from Rothsport http://rothsport-racing.com/Products...-Butterfly.htm
- Delete panel is from getty and does away with the rear reflectors as seen here https://rennlist.com/forums/964-foru...rbo-964-a.html

Are you the lucky bloke who just bought the white 964 from AH?

The bilsteins are up at AH but weight is listed at 20kg so you should be right if you have a good baggage allowance. Not oversize per se but on the heavy side

JV911

Given the reverse lighs are in the rear reflector which I'm ditching, does anyone have a suggestion for reverse lights?

I'm thinking that it could be rewired so both indicators come on instead but open to suggestions

Raven 666

Hi JV ..........I am interested to see how this turns out Subscribed..............

NCB964

Thanks for that! I'm thinking that's the cheapest way to get them landed.

No, I've had mine for about 4 years now. I did see that one briefly hit the market. It's amazing how quickly good 964 get snapped up these days.

964tit

Oh wow! You have the same kitchen bench as me!