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1242cc
FIRE (MPI)
History
This engine was acquired by mistake when I was looking
for a chassis for the turbo engine. The ECU was missing
as well as other important bits that had been picked
clean, the chassis itself was a mess. The engine was only
the complete engine block and head that's it, I later
acquired a 5-speed tranny off a Punto 85 to complement
this engine. The Punto 75 chassis was mine, but someone
thought I wouldn't notice parts were missing!!
I may have found an ECU
courtesy of mad4it
Since I have the time and the
engine will be rebuilt I'm going to install:
Overall stuff
- Block was tested for any cracks and stress
relieved
- Engine fully rebuilt using uprated engine parts
- Blueprinting the engine and grinding all parts (rods, crank,
Block, head) and balancing them to exacting tolerances for less
resistance
- Full engine cryogenic treatment (expensive for my
taste but needed for additional safety margin)
- Fully balanced rotating/reciprocating mass
- Fully Swain Tech coating on all engine components
(engine was shipped to the states for this
treatment)
- Main and big end bearings (tri-metal)
- Big end bolts
- Main bearing bolts
- All gaskets and seals
- Modified stock ECU or a Megasquirt II engine
management (testing will be done with a FAST engine management)
Bottom End
Block
- Overbored with torque plate and main caps torqued
on to prevent distortion (bore on a Sunnan CK10
machine)
- Sleeved block (cromium)-will allow up to
74mm pistons with additional boring
- Under piston crown coolers
- Block oil galley modifications to accommodate the
coolers
- Cleaned all oil galleys
- Main caps connected together with an aluminum
girdle
- Lightened and balanced flywheel (3kg total weight)
Pistons
- Forged high silicone aluminum pistons (custom 72mm
with 0.003" piston to wall clearance)
- Swain Tech gold thermal barrier coating on crowns
(reduces heat transfer by almost 25%)
- Swain Tech poly moly dry film coating on skirts (decreases
piston to wall clearance and provides better heat
transfer)
- Total seal piston rings
Pistons are of the same design as stock except the
compression ratio has been dropped to 8:1 .
Crank
- Lightened stock crank
- Stress relieved
- Feather/knife edged
- Polished
- Shot-peened (severe shot-peening took place to
strengthen the crank)
- Balanced
Rods
- Uprated rods (ARGO custom H beam)
- Stress relieved
- Polished (traditional beam polish)
- Shot-peened
Exhaust
- Straight through custom with 2psi
backpressure (1.5psi nominal)
- Magnaflow high flow performance
cat
- Mandrel bends on whole system
- Magnaflow pre-silencer muffler
- Dual Remus perforated core backbox
with dual oval chrome tips
Underdrive pulley
- CNC machined from billet aluminum (with timing marks)
- Anodized in red (by me)
- Fully balanced
Alternator pulley
- CNC machined from billet aluminum
- Anodized in red (by me)
- Fully balanced
Water pump pulley
- CNC machined from billet aluminum
- Anodized in red (by me)
- Fully balanced
Cam pulley
- CNC machined from billet aluminum
- Anodized in red (by me)
- Fully balanced
- Infinitely adjustable
Top End
Head
- Professionally ported head and flow tested (40%
flow over stock)
- Unshrouded valves
- Polished combustion chambers (full polish)
- Polished exhaust ports (60grit + polish compound)
- Stainless steel valves oversized 2mm
- 5 angle valve job (Serdi machine cut not the
stone grind stuff)
- Coated valves
- Swirl polished valves
- Turned down valve stems for increased flow
- Double valve springs for increased rev range
- Reprofiled Punto 75 cam
- Uprated head bolts (12mm ARP)
Intake
- Extrude honed intake manifold with custom mods(plenum
is perfectly smooth)
- Polished outside surface
- 220grit inside surface
- 64mm Throttle Body (initially was going to use a
Croma TB) polished
- K&N 75i air filter with custom cold air intake
mods
- Garrett GT25 turbo
- Spearco front mount intercooler
Fuel
- 4 300cc Bosh fuel injectors (port injection)
- Walbro (255LPH/45psi max) fuel pump
- Custom made fuel rail
- 3/4" fuel lines
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Ignition
- MSD 6BTM ignition or Electromotive XDI ignition (for
testing only then fit the MSD)
- MSD Blaster 2 coil
- NGK plug wires
Electronics
- FAST engine management (This is only for testing and will be removed)
- 3 bar MAP sensor
- Autometer EGT probes in cylinders 2 and 4
- Autometer 30psi boost gauge
- DIY-WB O2 sensor and controller
My intention is to make this into an all out turbo
engine, using low compression (8:1) and with 1 bar of
boost it should get me into the 200hp range easily with
the possibility of reaching into the 300hp range. You may
say that a turbo engine swap would be cheaper/easier BUT
in Portugal there is only two turbo classes one under
1300cc turbo class and another over 1300cc. The fastest
car I've seen in the under 1300 will pull a 15.98sec 1/4
mile, the one over 1300cc got a 15.16 sec 1/4mile. A
Punto GT/Uno Turbo will go into the over 1300cc class
since the mk1 Uno Turbo already has a 1301cc engine.
Note: I have been informed by the DGV (department of
transportation) that if I attain over 250hp on this engine/chassis
combination it will be in the supercar league and that will be reflected
on the insurance, normal insurance in Portugal is based on engine
displacement so the Panda has one of the cheapest possible insurances
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