Author Topic: FIAT ABARTH 124 RALLY - WORKS GROUP4 ALTERATIONS  (Read 13270 times)

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FIAT ABARTH 124 RALLY - WORKS GROUP4 ALTERATIONS
« on: November 21, 2005, 12:34:03 PM »
FIAT ABARTH 124 RALLY - WORKS GROUP FOUR ALTERATIONS

BODYWORK
All Cars(?)
Fully seam welded, gusseted and plated tub
Strengthened suspension mounting points
Full roll cage
Perspex door windows
Strengthened mounting points for hard top
Lightweight boot lid with rubber retaining clips
Lightweight bonnet with bonnet pins (two or three pin in three different layouts)
Full width alloy sump guard with protection for inner suspension mounts
1973 on
Wider (100mm) wheel arch extensions
Enlarged rear wheel arch openings
1974 on
Access points in rear scuttle for top bolts of rear struts (trom 1/1974)
Changed frontal layout with integral spotlights either side of grill, altered sidelights and brake
ducts, eggbox grill (from 4/1974)
Mid/Late1974on
Front end wide body kit with vents in rear of front wings for extracting hot air from under wheelarches
  (from 7/1974)
Bonnet with integral spotlights (from 7/1974)
Altered gearbox tunnel (from 7/1974)
Strengthened radiator mounts (from 7/1974)
Rear wide body kit with scoops in front of rear wheel arches for brake cooling (from 10/1974)
Enlarged rear brake cooling ducts (from 1/1975)
Cold air scoops on bonnet (from 7/1975)
Lightened (thinner) glassfibre hard top (from 7/1975)
Altered doors (from 7/1975)
16ValveCars
Flattened/Cut away cross beam on bulkhead
Cut away gearbox tunnel for easier access (7/1975 on)



WHEELS & TYPES

20mm alloy wheel spacers
Steel wheel studs with rolled threads (instead of bolt type fixing)

Tarmac -      
8J x 13 Cromadora Magnesium wheels
235/530 x 13 hand cut slicks
9J x 13 Cromadora Abarth Magnesium Rear wheels from late 75)

Forest -         
5.5J x 13 Abarth CD30 Magnesium wheels
6J x 13 Cromadora Magnesium wheels
185/70 x 13 (Rear)
175/84x13 (Front)




ENGINE TYPES
Earlv 8 Valve ~ Type 132
As Standard but :
Aluminium Big wing wet sump with side mounted oil filter
Balanced and shot peened steel rods
Balanced Crank
Lightened flywheel
Forged pistons
10.8 to 1 Compression Ratio
High lift and duration cams
Larger valves
Gas flowed head and manifold
Twin 44 IDF carbs
Later 8 Valve (Type 132) Engine - (Changes)
1839cc (86mm Bore)
Remote oil filter
Steel big wing wet sump
Modified Jackshaft
Series One Abarth 16 Valve (type 232A) Engine - (Changes) - First used (when?)
As early 8 valve but:
16 valve head assembly
Forged pistons
Abarth Crank (different pattern - toughened and hardened)
Side (block) mounted distributor
Twin 48 IDF carbs
Modified Jackshaft
Smaller Jackshaft belt drive wheel
Series Two Abarth 16 Valve (type 232B) Enqine - (Changes) - First used fwhen?)
As type 232A but 1839cc (86mm Bore)
Changes/Alternative parts for type 232A/B
Exhaust Cam mounted distributor
Bosch/Kugelfischer direct fuel injection with guillotine type throttle assembly
Full dry sump (with tank in boot)
Series One Lampredi 16 Valve
Completely different engine based on 1997cc block with Lampredi designed head as subsequently fitted to 131 Abarth. Engine probably only fitted experimentally, but reputedly also fitted to Alen's car in 1976 Monte.


FUEL
(For Carbs/Injection see "Engine" section)
Twin electric fuel pumps in boot
Fuel lines through cockpit
Alternative larger fuel tank mounted in LHS of boot for long distance events. Flat floor (1973on)
Alternative larger fuel tank mounted on rear bulkhead in boot. Flat floor (10/1974 on)


BRAKES-Front
256mm x 20mm vented discs (from 1/1974)
Cooling ducts to discs
Forged Aluminium alloy ATE two pot calipers (Porsche 911 RS type) (from 1/1974)
Lockheed 4 pot alloy Calipers (from late 1975)
BRAKES - Rear
256mm x 9.6mm (?) solid steel discs (from 1/1974)
Steel two pot calipers
Cooling ducts to discs (from 10/1974 with full wide body kit)
Abarth small drum type mechanical handbrake assembly (in bell of rear disc) - (from
10/1974)
In line hydraulic handbrake (from 10/1974)
BRAKES - General
All brake lines internal
All brake hoses armoured
No brake servo
Twin Master cylinders with separate reservoirs under scuttle
Opening in scuttle over reservoirs (from 4/1974)
Brake bias adjuster (from 10/1974)
STEERING
Quick ratio steering box (2.4 turns lock to lock) with strengthened drop arm.
Strengthened (gusseted) idier arm Fabricated and rose jointed tie rods
Strengthened track control rods
SUSPENSION - Front
Strenghened front cross member
Strengthened (gusseted) upper wishbones with rose joints at inner end
Strengthened (plated) lower wishbones with rose joints at inner end (from 1/1975)
Stronger (forged steel) stub axles
Rose jointed anti roll bar drop links
Up rated dampers
Up rated springs
SUSPENSION - Rear
Rose jointed drag links
Rose jointed drop links on anti roll bar
Strenghthened anti roll bar mounts
Gusseted lower reverse wishbone with rose joints
Strengthened hub carriers (from early 1974)
New type forged steel hub carriers with mounts tor two brake calipers (7/1975 on)
Strengthened differential carrier
Up rated struts with adjustable spring platforms
Up rated springs

downloadable PDF-file in attachment thanks again to Peter N.
« Last Edit: November 21, 2005, 02:55:05 PM by guy moerenhout »
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Offline guy moerenhout

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Re: FIAT ABARTH 124 RALLY - WORKS GROUP4 ALTERATIONS
« Reply #1 on: November 21, 2005, 06:16:20 PM »
suplement  wheels   front/rear 7x13 cromodra  magnesium       ;      front  8x13    campagnolo 4 spoke       rear  9x13    campagnolo  magnesium      newbielink:http://www.abarth-gmr.be/new/gallery.php?arh=04_04 [nonactive]
« Last Edit: January 04, 2006, 09:57:50 AM by guy moerenhout »
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Offline guy moerenhout

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Re: FIAT ABARTH 124 RALLY - WORKS GROUP4 ALTERATIONS
« Reply #2 on: November 02, 2006, 09:08:44 AM »
yesterday I find more special info and things that I dident now from the factory car.It was with a car that I was buying and after reading the new book from Nada :Fiat in Rally  Info comes
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Offline pneter

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Re: FIAT ABARTH 124 RALLY - WORKS GROUP4 ALTERATIONS
« Reply #3 on: November 05, 2008, 11:16:37 PM »
Hello Guy,
I have a question about Kugelfischer fuel injection, for which I like your opinion. Do you believe one can fit a BMW 2002 tii Kugelfischer injection system succesfully to a 1.8 liter 8V 124 engine? or better a 2L 131 engine with late16V head? or can it be made to fit? I am especially worried about the engine specific control cam in the fuel pump. Is it still available for such 131 16V engine?

kind regards
Peter, Netherlands

Offline guy moerenhout

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Re: FIAT ABARTH 124 RALLY - WORKS GROUP4 ALTERATIONS
« Reply #4 on: November 06, 2008, 10:06:18 AM »
I now that Polski Fiat did rally with the Polonez and Kugelfischer (a complete engine is for sale in france-8000 euro) I have rebuild via Poland some pomps and the make the specific cam for it .I have a 131 Kugelfischer pomp on spare for my Alitalia .I wish to adapt on one of the Powerplus cars with the 16 V this .On a 124 the do already the same modifications with injektion
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Offline achy

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Re: FIAT ABARTH 124 RALLY - WORKS GROUP4 ALTERATIONS
« Reply #5 on: November 10, 2008, 10:21:09 AM »
Guys
Keep in mind that the pumps of 124 and 131 are different.
I do have the original 124 Kugelfischer pump which is labeled VIPL154/1/2 146
instead if PL04 000.5. 928 of 131. I guess that the VIPL type is for more revvy
engines

Achilleas

Offline guy moerenhout

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Re: FIAT ABARTH 124 RALLY - WORKS GROUP4 ALTERATIONS
« Reply #6 on: November 10, 2008, 10:31:26 AM »
this is correct but it the inside camshaft that must be change to your specifications .I let do this before with persons from FSO rally team
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Offline achy

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Re: FIAT ABARTH 124 RALLY - WORKS GROUP4 ALTERATIONS
« Reply #7 on: November 10, 2008, 11:01:22 AM »
But I do have the 16v 232 cylinder head for which this pump was destined.
Why I must again change pump cam ?
And the most importatnt who can make it ?

Offline guy moerenhout

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Re: FIAT ABARTH 124 RALLY - WORKS GROUP4 ALTERATIONS
« Reply #8 on: November 10, 2008, 12:19:16 PM »
If you have the original pomp its Ok ,Iff you have a BMW our Peugeot our veven Ritmo you have to change the pump camshaft
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Offline achy

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Re: FIAT ABARTH 124 RALLY - WORKS GROUP4 ALTERATIONS
« Reply #9 on: November 10, 2008, 04:06:34 PM »
Guy
Just for the record : Who can make new cam at the moment and what data needs ?