Mittwoch, 12. August 2009

Wheel Alignment Data Sheet



Front Axle Kinematic Settings

Camber with serial upper links (non adjustable): 0° 20’ (tolerance +/- 0° 30’)

Camber with adjustable upper links (preferred): -1° 00’ (tolerance +/- 0° 10’)

Camber difference right/left wheel max.: 0° 40’


Toe (total axle) steering wheel straigt ahead: 3,0 mm (tolerance +/- 0,5 mm)

Toe angle @ 15“ wheels: 0° 13’

Toe angle @ 14“ wheels: 0° 14’

Toe difference angle @ 20° steering angle: n.c.


Caster adjustable at longitudinal link: 1° 30’ (tolerance +/- 0° 30’ )

Preferred sporty caster value: 2° 45'

Caster difference right/left wheel max.: 0° 20’

Kingpin inclination: 8° 35’ (tolerance +/- 0° 30’) not adjustable

Preferred sporty kingpin inclination: 9° 35'


Rear Axle Kinematic Settings (rigid axle)

Camber (non adjustable):

Camber difference right/left wheel max.:

Toe angle (non adjustable):

Caster: n.c.

Testing conditions:

Put 45 kg weight on each driver and copilot seat. And another 25 kg in both foot rooms. No passengers inside, fuel tank full.

Dienstag, 7. Juli 2009

Oil Temperature Sensor

I experimented with an oil temperature sensor instead of the oil dipstick but the device was broken over the time and I had oil leakage problems. Now I replaced it by a temperature sensor in an additional flange between oil filter and engine block. I used a kit by Raid Automotive Concepts. It has a 3/4 unf thread for conventional W718/2 Alfa/FIAT oil filter cartridges and a conventional oil filter mounting pedestal. The anodized aluminum extra flange is able to accept a small sensor with 1/8 inch 27 NPT conical thread.

Sensor specs of the new oil filter sensor: 1,8 kOhm @ 20°C - 150 Ohm @ 100°C





Montag, 22. Juni 2009

Tiefenbronn Classic Rallye 2009


This year's Tiefenbronn Classic an Sunday, 21st of June had a lenght of about 130 km between the nothern part of the Black Forest and the river Enz wine region. Almost 200 cars and 20 historic bikes participated. Among them were former Mille Miglia competitors Herbert Linge and Paul Ernst Strähle with their historic beetle and Porsche 356 "V2". Among the ancient heroes we also met Eberhard Mahle, Günter Steckkönig and Paul Hensler - all familiar with historic Porsche cars.

Here is the GT junior in the Bad Liebenzell Park. In the youngtimer class from 1972 our grid number was 121.




Sonntag, 10. Mai 2009

Radiator Thermoswitch


I replaced the adjustable Kenlowe thermoswitch by a fixed thermostatic switch. Radiator on @ 88°C - off @ 83°C. The switch comes from a Volvo 360 and it's metric screw is M14 x 1.5. The copper T-shaped fitting comes with a tube diameter of 32 mm (2000cc engine needs min. 35 mm). It's mounted in the lower radiator hose between the radiator and the water pump. Customized T-fittings are available at Schweizer-Motorsport.

Sonntag, 1. März 2009

Trunk Lid Repair


After a little welding job the trunk lid was painted red again (Ferrari rosso l300).

Mittwoch, 18. Februar 2009

Photo Competition @ MotorKlassik

*** Sorry, the Alfa was not the best photo of the show! ***

Win a Leica C-Lux compact camera and vote for one of my photos at the MotorKlassik photo competition (see MotorKlassik magazine no. 3/2009) and on the net here:


MotorKlassik online
This is my photo of the GT junior taken in autumn 2008. It was the fist test drive with the new 6 x 14 MOMOs.


This one I took at the Neuenbürg Classic Day in September 2008. Nice gauges! Water resistant?
Please guess - what muscle car is it?

Sonntag, 18. Januar 2009

Oldtimer Meetings and Competitions 2009

We will participate in these 2009 events:


21.06. 2.Tiefenbronn Classic Oldtimer-Freunde-Tiefenbronn
27.-28.06. 10. Bosch Boxberg Klassik


and next year:

Mai 2010: GÄU Veteranen-Rallye MSC Herrenberg

Samstag, 20. September 2008

MOMO Vega Wheels 6 x 14"


The Vegas finally are powder coated, tyres 185/70 R 14 (with tubes) are mounted. The steering needs less effort when driving in a bend or parking compared to the former 195/60 R 15 Bridgestone. However steering characteristics offer a very good increase in handwheel force over lateral g's.

Mittwoch, 17. September 2008

Neuenbürg Castle Sept. 15th, 2008

These are the Alfa participants of the 2008 Neuenbürg Event in the old castle yard.

Sonntag, 14. September 2008

Speedometer Optical Tuning


An additional 12V 4W instrument light bulb with it's BA9S socket is mounted on the back of the speedometer housing. On my car instrument ligths are very weak.

I recently had to open the speedometer because of a failure. By the way I cleaned the mechanics from dust and grease and put the SNO logo and the gear switch pic on the dial. Both are decals printed with an inkjet printer. The gear logo is scanned from the Giulia manual. The checkered flag showes the city limit area.
The speedo accuracy can bei easily adjusted on Jaeger instruments by a screw on the back side. Odometer rolls (km) can also be tuned independently.

Dienstag, 2. September 2008

Mini Catalytic Converter

Why not supporting environmental protection with our historic cars? Here is an easy and cost effective way to integrate a catalytic converter into the exhaust system. I use the Tenneco Walker Mini Converter. I has a diameter of 55.5 mm and was planned to use in the Audi Coupe 2.3l 5-Cyl. (Walker type no. 52590-03W). Other diamerters (42.5 mm, 45.5 mm, 50.5 mm) are also available.

The converter is intergrated in the exhaust pipe just behind the 2 in 1 tube of my CSC sports exhaust system with stainless steel pipe clamps. Sealing compound is recommended. It should be mounted as near as possible to engine's exhaust ports.

There is no special engine control system. I run stock Weber 40 DCOE carbs. Ok, this is not very effective in terms of emission reduction but better than nothing. I can't measure any significant engine power reduction due to the
streamlined sheet metal catalyst technology.



Samstag, 5. Juli 2008

High Beams Finally Mounted

Here are the original chromed Bosch high beams mounted on the GT junior. You see the protector caps I taylored last year.

Mittwoch, 2. Juli 2008

7. Veteranenausfahrt MSC Weil der Stadt

Saturday, 28th of June I finished 3rd at the historic rallye of the Motor Sport Club Weil der Stadt.
It's not worth complaining but I could have been first in my class. At trial no. 3 my bicycle odometer showed wrong speed values. I couldn't keep the average speed of 30 kph and got 33 penalty points - what a mess!



Tho photo shows a BMW Dixi with a rare "Ihle 600" body behind the Volvo. The BMW- or Dixi Ihle has a wooden handmade body on a 3/15PS chassis manufactured between 1930 and 1934.

Momo Vega 6 x 14" Alloy Wheels

Recently I got the chance to buy a set of four aluminum wheels. They are called MOMO "Vega" dated from 1972. MOMO is an italian manufacturer - you might know their steering wheel collection. The size is 6 x 14" fitting exactly on the Alfa GT junior. I found out that the rims are rather 6.5 that 6.0 inches. This will give a good cornering stiffnes with my Barum 185/70 R 14 classic tires. There is no H2 hump - so there is no chance to use tubeless tires. The well known Alfa hub caps of the 5-spoke Cromodora CD-35 wheel are supplied with these outstanding contemporary wheels.

The wheels must be glas-sanded and re-painted. Silver paint or two-colour black/silver would be nice. Even powder coating would be possible.

Samstag, 14. Juni 2008

Cylinder Head Preparation - Part III (final)


The engine finally is reassembled and the new cylinder head on top. You can see the intake prolongation parts (+40 mm) between the Webers and the head. Because of these the air filter is very near to the left fender. I had to move the MSD 6 ignition box to the firewall (under the ignition coil).

I left my concept an fitted a different exhaust cam. It's a Heimbach 30A cam (278° duration, 10,0 mm lift, 0,30 mm valve clearance).