IROC RSR, 910, 956 and Porsche Bug at the Historic Hillclimb Altbüron 2013

IROC History

In October 1973, twelve of the top drivers in the world were invited to participate in IROC, the International Race of Champions. They competed in a series of four races, in which all equipment was equalized. The drivers were from Formula One, USAC, NASCAR and the SCCA.

The car was the 1974 Porsche Carrera RSR 3-liter racecar. Fifteen identical cars were ordered by Porsche, with 318 horsepower RSR engine.

 This car was the spare car for the IROC 1973!

 

Here you can see the fantastic engine. Twin-spark, Bosch mechanical injection pump and the  special small Fan and the High Butterfly Throttlebodies.

 

                               

                                very nice!

 

 

I found a Porsche powered Bug too!

 

 

Widebody and Top chopped with a 3-l engine, sounds great  with his straigth pipes

 

Have a look on the engine

 

 

Porsche 910 was in Altbüron too

 

 

Porsche 956 in a line, pure racing history

 

!!Is a great Event don`t miss it the next time!!

 

Back from Holidays

Some pics from our vintage holiday trip

 

 
                                                with the train from Feldkirch to Vienna

 

Zwentendorf

Never opened nuclear power plant :-)

 

 

 

 

visit the world heritage monument Sift Melk

 

 

 

 

Schloss Orth am Traunsee

 

 

 

 

Bad Ischl

 

                                                        
                                                                 Burg Hochosterwitz

 

Nice views

 

 

 
                                                               beautiful evenings

                                           
                                                                      good car

 
                                                                best driver ;-)

 

with the train back from Villach to Feldkirch

 

Perfect Holidays, thanks to all friends !!

Torque Master Layout

The Torque Master project is on the way

This engine project will run on a single 34 PICT-3 Carburator

                                    orig. manifold and JPS custom intake manifold

 

Exhaust will be a stainless steel from vintage speed

 

Link for Exhaustsystem:

http://www.vintagespeed.com.tw/Exhaustsystem/Exhaustsystem-main.html

 

 

 

with the carburetor on and the airhorn on top

 

 

 

 

Black Magic und Torque Master Update

The first Kilometers are done with the Black Magic engine

 

Looks great in this beautiful 1960 Convertible

 

 

 

Cool down for valve adjustment

Checking the ignition curve on the 1-2-3 tune

 

 

Torque Master Project

 

 

This is the crankshaft for this Project

 

 

SCAT Forged Crankshaft

 

 

 

Checking deck heigth

 

 

 

Longblock is ready

 

 

 

 

Bitburg & Molsheim

Some pictures from Dragracing in Bitburg and Cox Show Molsheim


The weather conditions were very changeable in Bitburg.
With some rain breaks, Wallä Zwahlen could complete 12 runs with his street bug.

His silver Bug did the 1/4 mile in 13,9 seconds! and this with "only" 2l  engine with 44 IDF and with 175er rear tires
(no Slicks)

Wow!!


His engine is equipped with JPS HD Aluminium Pushrods and a 3,3kg JPS Flywheels,
revs up to 7200rpm every run easy!

Wallä has built a very nice engine

 

 

 

Some impressions from the Cox Show in Molsheim

 

 

Torque Master Project

A new Engine Project is on the way

The goal for this Project is to have a max. Torque to push a T2a Bus.

 

Cylinderhead on the milling machine

 

 

 

Case and heads are ready

 

The Camshaft will be a special!

with a brand new grind

 

On my last trip to California I visit WEBCAM in Riverside.

The Ladys are brillant there.

Special Thank`s to Debbie!

 

 

Pistonweigth incl. pin and rings

 

Crankshaft and flywheel are out for balancing

 

 

Racing Victory

Congratulations Wallä,

The first race in 2013 brought the first Victory for Wallä Zwahlen.
Victory in both racing hits!
Improvement of the lap time by 1.6 sec against 2012!

I am proud that I can provide this racingcar with the JPS Slidevalve.

 

It`s a pleasure to work with you Wallä!

Furthermore the racecar is equiped with JPS HD aluminum pushrods  since 2 years .

All the Best for the 2013 racing season

Engine for Saison 2013

This is the Street-Engine for my `56 Ragtop Oval for Saison 2013

 

Specification:

 

1915ccm

Stock Crankshaft modified

Lightened Stock connecting rods

94mm AA modified Pistons  & Cylinder

Ligthweigth Wrist Pin

W120 Camshaft

72g Lifters

Cylinderheads 041 JPS modified

40 / 35,5 Valve (Lightened)

Titanium Retainers

Single Hi-Rev Springs

1:1,25 Rockers

JPS HD Aluminium Pushrods (41 Gramm / pcs)

JPS 3,4kg Flywheel

40 Dellorto with JPS 34mm Venturi

1-2-3 Tune Ignition

CSP Super Competition Exhaust

 

Very nice engine revs up like a Super-Vee!

 

 

 

Long Block Assembly

 

 

GBE Case Conversion Kit

 

Technical Facts Formel Super Vee

Today's blog is for People the love the fine art of Formula Vee and Formula Super Vee.


For all guys the prefer "hard" stuff like K Motion K800 Dual Chevy springs, steel pushrods and monstervalves  they can stop reading here.......




I've found two tables to the engine technology of Formula Vee and Super Vee, which show the fine technique to build a "air"-cool engine .

Have a look on valvespring pressure, valve size and carburetor size and the performance per liter they achieve.

My 1915er streetengine  is built "almost" identical
I love the response of this engine ......

Try it yourself once , a wide grin is for sure

nice week
Pit

 

 

 

Only for comparison

You don`t need a flow bench to see the difference!


Orig. Dellorto Venturi     vs           JPS Venturi

JPS Dellorto DRLA Venturi Shipset

A Set of JPS Dellorto DRLA Venturi in Ø34mm ready to ship

Thank you Thomas!

Have Fun and all the Best for your nice Streetscreamer Project

JPS Valvecover

JPS Valvecover with better lubrication and cooling  for the valvetrain and cylinderhead

This reduces wear on the rocker arm and ensures uniform cooling and lubrication on both sides of the cylinder heads