1985 Ferrari 308 GTS quattrovalvole
For more info see Ferrari's site.
It has all the standard options:
- Red paint (Rosso Corsa)
- Tan leather
- AC (factory option)
- 16" rims (factory option)
- rear deck air spoiler (factory option)
Here is the power curve as listed by Ferrari. I think this covers 1983 so
my 1985 (and the 84) has about 2% more because of the removal of the smog pump
and other small changes.
More engine tech info
I have a growing collection of service manuals and original sales material.
One day maby I'll scan it in...
I did replace every outside light bulb:
|Where||Quant.||Old bulb||New bulb
|Headlight (stock)||2||6024||H6024XV Halogen (DOT)
|Headlight (new)||2||E-Code Hella H4+30 (Halogen/Xenon)
|Rear backup (standard)||2||1073||1156LL
|Rear backup (option)||2||1073||50W Halogen
Note that each rear stop/tail and turn light has TWO duplicate bulbs.
Each backup light is still a single bulb.
And I replaced the flasher unit (ITALMEC 00.277.00) with a standard US/DOT
3 Terminal Tridon/Stant EP36 (3 Turn/6 Hazard). It works great! I can now
tell when ANY of the turn bulbs burns out or fails. The stock Ferrari flasher
would only indicate a failure when most of the bulbs were burnt out! All the
bulbs I used are standard off-the-shelf items in your everyday auto parts
super store. (execpt the E-Code H4 headlights)
Here is a list of relays used:
|B 29||Left radiator fan||Bosch 0.332.014.113||SPST (2x87)
|C 30||Right radiator fan||Bosch 0.332.014.113||SPST (2x87)
|D 99||AC Right radiator fan||Bosch 0.332.014.113||SPST (2x87)
|E 87||Headlamps||Bosch 0.332.015.006||SPSTx2 (87b)
|F 83||Brakes warning light||Bosch 0.332.014.113||SPST (2x87)
|G 90||Start injector||Bosch 0.332.204.101||SPDT (87a)
|H 91||Fuel pump||Bosch 0.332.014.113||SPST (2x87)
|I 97||Windows motor||Bosch 0.332.014.113||SPST (2x87)
|L 11||Horn||Bosch 0.332.014.113||SPST (2x87)
|M 105||Headlamps motor||Bosch 0.332.204.101||SPDT (87a)
|N 75||Left headlamp motor||Bosch 0.332.204.101||SPDT (87a)
|O 76||Right headlamp motor||Bosch 0.332.204.101||SPDT (87a)
|124||O2 protection relay||07 130 612||Special (OOP)
|114||Throttle||Bosch 0.332.204.101||SPDT (87a)
|126||Cutoff||Bosch 0.332.204.101||SPDT (87a)
I tried 5 major local auto parts places and could not find any
direct replacements (some were close, but I wanted 100% correct parts).
I called the local "Foreign Autopart" (860-289-9009) and they could get
the exact Bosch parts.
Because it was a special special order there was a $4 shipping charge for the
order (not per relay).
|Part Number||Price each
The fuse block had a burnt fuse (fuel pump). I got a new fuse block but
then changed my mind and I built a new 20 ATO fuse block for it.
I like the way it looks (photo to follow)
I replaced the filter with a K&N part number 33-2518 (KNFE4V)
I got it from Martel Brothers
I replaced the old radio (non-factory anyway) with an Aiwa CDC-MP3 unit.
I replaced the coil wires (one was broken/burned out) from Partsource in Maine.
I added a dual MSD setup with rev limiters from Summit Racing.
I refinished the rims (two were a little bent) and added new
Potenza S-03 Pole Position tires:
- Front: 225/50R16
- Rear: 245/45R16
Insalled an Optima
Red Top 75/35 battery.
It fits great. I added some additional hold-down straps to guarantee the
battery was not going to move. (not that it every did)
The old Pep Boy's Prostart 78DT "battery" lasted 18 months, I got full credit.
I think the location of the battery (heat and vibration) caused it's death.
The new Optima is smaller but I already noticed the Ferrari starts faster!
The larger 34/78 battery would fit, but the positive
cable may not reach because the top posts are closer to the battery center than
normal. Also the front/side terminals may hit the sway bar and rub (like the
old prostart did).
With the 75/35 the front/side terminals are higher and are over the sway bar.
O2 / Oxygen Sensor = Bosch 13009 / Walker 00562 ($123+tax)
I got the Walker part locally, It has the correct connectors.
Replace defective Jetronic computer (used one from T. Rutlands)
New Tubi exhaust system. And a "test pipe".
I still pass required state emissions. I have heard that some 308's are
great an run clean and others don't pass even with all required equipment.
I'm working on (or not):
- Electromotive HPX direct ignition (DIS 4 coil waste spark)
- New high flow Cat (Kat)
- Real HID H4 dual mode headlights (if they fit: Bellof System 5)
- few other improvements....
- few other repairs....