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What Spec Is Your Engine?


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#106 alexcrosse

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Posted 07 March 2008 - 12:26 PM

1425.6 cc
Turbo Crank stroked to 84mm xdrilled, wedged, nitrocarbonised
Omega pistons
11 stud arp
Cooper 's' conrods fully floating little ends with cosworth bush & ARP bolts
Full race bill richards head
11.5:1 cr
36mm 31mm valves
Bronze guides
Double valve springs
1.5:1 roller tip rockers
286 kent cam
Fully rebuilt box with a series gear + straight cut drops
Aldon dizzy
Comp fuel pump
etc etc
105.7bhp @ wheels @ 5500rpm
130bhp @ flywheel
105lbft torque from 2500rpm til 5500rpm

#107 CraigyBoy

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Posted 12 March 2008 - 06:04 PM

that sounds like an exciting engine, very strong.

nice one.

#108 alexcrosse

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Posted 12 March 2008 - 06:39 PM

certainly does the trick! cheers man.

Edited by alexcrosse, 12 March 2008 - 06:39 PM.


#109 tuktuk

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Posted 12 March 2008 - 06:42 PM

Mg metro block bored 60thou to 1330cc
Stage 5 cylinder head, 37.5mm inlet, 30.6mm exh
Kent Megadyne 286 Cam
Turbo oil pump
Duplex timing gear
Fully rebuilt bottom end etc.
HIF44 Carb, with weber style K&N filter and a Straight through exhaust system.

should have it running easter weekend with a bit of luck, ready for the summer... :D

#110 Racer_Pete

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Posted 12 March 2008 - 07:40 PM

998cc A+
Mini Sport Lighted Flywheel + Backplate
AP Orange Racing clutch
Head Skimmed 60 thou'
Janspeed Stage 3 head
Maniflow Magicpipe
2'' Custom Exhuast
SW5 Cam
Eletric Fuel Pump
Lucas Sports Coil
Rebuilt gearbox etc..

#111 Gilly2006

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Posted 12 March 2008 - 08:30 PM

1275cc
10 thou skim off block
15 thou off head.
286*pipe cam with duplex timing gear
lightweight flywheel
Metro turbo clutch
stage 3 head
Lucas electronic ignition
998 gearbox
uprated diff pin

Hoping for around 85bhp at the fly

Edited by Gilly2006, 09 April 2008 - 01:00 PM.


#112 miniman92

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Posted 12 March 2008 - 09:18 PM

998cc (decked 20 thou) with flat top pistons

MG Metro Cam

close ratio cooper S / GT box with 3.9 diff and hardened diff pin with straight cut drop gears

Ultralite mini sport flywheel and backplate

Fully worked 12g295 cylinder head (35mm Rimflow inlet valves & 29mm exhaust valves)

Lightened S Rockers

Lucas Electronic Ignition and sports coil

Kent oil Pump and High capacity Water pump

HIF38 Carb

Maniflow system with freeflow manifold

68bhp at the flywheel, 59 bhp at the wheels.

Edited by miniman92, 26 May 2008 - 06:51 PM.


#113 roofless

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Posted 12 March 2008 - 09:23 PM

yamaha 1000cc

fuel injected

20 valve

sequential six speed - all forwards unfortunately :lol:

anticipated 150 BHP - TBC.

#114 Supercharged_clubby

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Posted 12 March 2008 - 09:31 PM

1330 A+ block
Big valve mildly worked head
AE +60 low comp pistons
SW5 cam
Swiftune 1.5 roller tip rockers
Lightened duplex timing gear
Jonspeed ultra light flywheel and back plate
Aldon Points non vac custom dizzy
Lucas gold coil
orange diaphraghm
Eaton supercharger

138bhp at flywheel

#115 mini_mission

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Posted 13 March 2008 - 09:32 AM

1380 a+ block
Weber 45
Pipercross ram pipes and sock filters
Maniflow 6" inlet manifold
polished, ported head 35.7 inlet and 30. exhaust valves
double valve springs
1.5:1 roller rockers
286 cam
lightened, balanced and polished a plus con-rods with ARP bolts
Omega pistons 73.5mm
X drilled, wedged, bladed, backdrilled and tuftrided crankshaft.
aldon dizzy with eleccy ignition
Maniflow stage 2 LCB
exhaust wrap
Playmini side exit single box exhaust
13 row oil cooler
metro front mounted rad
Ultra lightweight flywheel and backplate
SC/CR box
SC drops
X pin diff (Quaife LSD is the next thing!)
3.44 final drive

all built by MED and just under 100BHP at the wheels when rolling roaded last.

#116 CraigyBoy

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Posted 13 March 2008 - 01:03 PM

I'm in the process of building my first engine.

A+ 1275 block (standard bore, just honed)
Standard pistons, new rings and original rods.
Standard Reground Crank, 10thou and new bearings.
Stage 4 head.
Kent 286 cam, new bearings.
Oil Cooler.
Standard fly.
Verto clutch assembly.
Standard 1275 A+ box (reconditioned and central oil pickup)
HIF 44 Carb.
Ignitor ignition.
Maniflow large bore system.
Alloy inlet etc.

Any suggestions on what to expect, power and torque wise.

I would like to think 80bhp at the fly.

Any suggestions to change the speck are welcome, the car will be used moslty weekends and a few trips a week, so something exciting but drivable is needed. Anyone got anything that could improve the speck?

Keeping in mind i'm a student so cant afford to supercharge or run on nitromethane. ha

#117 mini_mission

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Posted 13 March 2008 - 02:03 PM

I would get your crank, rods and flywheel all balanced and get your fly lightened too- a lightweight fly with a 286 is a killer combo :-

#118 Rosslin Racing

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Posted 13 March 2008 - 05:13 PM

Mpi block. steel crank, steel rods, JE pistons 73.5mm, big valve Miglia race head dry decked, high lift roller rockers. JKD sc drops 1.1,
296 bent cam, belt drive cam, steel flywheel sinter clutch, cooper damper. kugelfischer mech injection, barrel inlet, Omex controlled ignition.
4 speed sequential gearbox, 3.9 Sc JKD mk6 LSD diff reverse cone exhaust.

#119 welshdan

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Posted 26 May 2008 - 02:26 PM

what im currently building...

low mileage non mg metro 1275 block, drilled for 11 stud
uprated oil pump
sw5 cam
centre strapped main
home modded head - austin 1300gt casting, ported and polished, larger inlet valves, a+ exhaust,polished valves, seats reground, cast marks removed from chambers, refaced.double sprung
a series rockers, bushed to 1.4

garett t3 turbo, 8psi actuator.

tranx sccr gearset
tranx 1.1 drops
3.1 4 pin diff
ap comp clutch
grey diafragm

13 row oil cooler
rs turbo intercooler

should give me at least 100bhp at 8psi of boost...

the engine has cost me under £200 to put together, including the turbo stuff.
gearbox a bit more!

Edited by welshdan, 26 May 2008 - 02:29 PM.


#120 Jordie

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Posted 26 May 2008 - 08:50 PM

1312 A-series block (1275cc + 0.40?)
morspeed pistons 13cc dish
MG metro N/A cam
Metro turbo head was rebuilt, with new valves valve seats guides, 180lb double valve springs the chambers are approx 25.5cc. standard rockers
Modified plenum for intercooler
Rebuilt carb with avonbar needle valve for high boost
Rebuilt turbo by avonbar
High Capacity Turbo Oil pump
Full bottom end rebuild - crank, bearings, mains etc
13 Row oil cooler
2 core radiator
thermostat blanking sleeve
K&N Air filter

T3 Metro turbo, Avonbar actuator, bleed valve, dump valve, RS Turbo intercooler with 2inch silicon / stainless pipework, Braided turbo oil feed
Aim to run at the 12-16psi mark after final adjustments

Straight cut drop gears. Mini spares 23 - 30 - 23 setup for strongest, but noiser setup.
3.44 Final drive ratio
Complete rebuilt box
Lightened flywheel
Turbo / Rally bonded clutch plate
Orange diagram

Megajolt ignition setup, blanked dizzy hole from MRA minis.

Edited by Jordie, 26 May 2008 - 08:51 PM.





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