197 replies to this topic

[1380MEDlee]

Here is my whole spec mini rather than just the engine it cost circa of upwards of £20k+ to build in parts alone plus labour on top.

Spec inc: Engine: *1275cc bored to 1380cc * MED cross-drilled, wedged, bladed and NI tempered crankshaft * Center main strap * Polished cooper S con-rods * MED 73.5mm V-wedge pistons * 300 degree MED scatter cam * Duplex timing chain * MED gas-flowed ported and polished 11-stud race cylinder head * 1.5 high-lift roller rockers * Stainless 36.5mm inlet and 31mm exhaust valves * Bronze valve guides * Highpower Nitrous Systems nitrous oxide injection kit * Weber 45mm carburettor * Pipercross air filter socks * Facet Works silver-top fuel pump with stainless braided hoses and finishers * Filer King fuel pressure regulator * High-capacity water pump * 4-core radiator * Chrome 4-blade mechanical fan * 13-row Mocal oil cooler with Goodridge hoses and anodised end * Lucas sports coil * Aldon race distributor * 6-gallon alloy fuel cell * Polished alloy 6 inch inlet manifold * Polished stainless Maniflow LCB * Side-rear-exit single-silencer polished stainless exhaust system.

Gearbox: * Jack knight 4-speed close ratio 'box * Straight-cut 1:1 dropgears * Internal gear linkage * Grey competition clutch * Lightened, balanced flywheel * Cross-pin diff * 3.9:1 final drive ratio.

Brakes: * Front: non-servo-assisted * Goodridge brakes lines * Tilton brake balance controller * 7.9-inch vented discs * purple anodised Mini Sport billet 4-pot callipers * Mintex brake shoes * Chrome brake back plates * KAD alloy handbrakes quadrants * Handbrake moved 12 inches to rear.

Suspension: * Polyurethane bushes all-round * Polished Mini Sport Adjusta-Rides * Front: Rose-jointed negative-camber bottom arms * Adjustable tie-rods * AVO dampers.

Wheels and tires: * 6x10-inch GB alloys * 165/70x10 Yokohama A008n tyres

Exterior: * Resprayed two-pack Arum white * Pearl black roof * Modified Wood & Pickett arches * Front end, rear seat base and inner wings removed * Seam-welded seat cross-member * Bronze-tinted Perspex window * Driver's - door sliding window * Dummy twin alloys fuel fillers * Stainless seam strip * Morris Mk1 stainless moustache and grille * Carbon removable front with separate bonnet * Halogen headlights

Interior: * FIA-approved Sparco Pro driver's seat * Sparco sprint passenger seats * Luke FIA-approved 4-point harnesses * 6-point rollcage * Curley carbon dash and switch pod * Stack ST500 Tach Timer with digital speedo and rev-counter * Race Tech oil pressure gauge and water temp gauge * Suede removable steering wheel with high-tensile gold plated bolts * Stainless toggle Switches * Push-Button Starter * Dash-mounted fuse box * Autolec battery master cut-off switch * Carbon door cards, rear quaterpanels and parcel shelf.

[Turbo Nick]

block:

1275 A+ base unit
+.020 rebore to 1293cc
21253 pistons with an 11cc dish machined into them
standard A+ rods
standard a+ crank
avonbar phase 2 turbo cam
hi-flow turbo oil pump
vernier duplex timing gear
pre verto standard flywheel
grey diaphragm
raod/rally plate

Head:
morspeed ST2 turbo head
35.7x29m valves
29cc chambers
opened out exhaust ports

Box:
minispares SC/CR gearset
minispares copy X pin diff
3.44 cw&p
SC 1:1 drops

Misc:
green air filter
2" stainless exhaust single box
sierra 2WD cossie intercooler
10psi boost

119 bhp, 121lb/ft @ spamspeed
104 @ the wheels

damn thats changed a bit since 2005.

last years was:

block:
1293cc
21253's @ 11cc
std A+ rods with ARP's
hardened A+ crank
avonbar ph2 cam
minispares vernier duplex timing gear
11 stud

Head:
Morspeed st4 booster
35.7x31 stainless valves
27cc chambers
8.7:1 comp ratio
1.3:1 S rockers
11 stud (ARP's)

Box/clutch:
minispares clubman SCCR
SC drops
X pin diff
3.1 FD
ultralight steel fly and backplate correctly setup
grey diaphragm
std turbo clutch plate

Others:
modded turbo carb
megajolt mappable ignition
2wd cossie intercooler
green filter
T25 turbo on metro T3 manifold
custom 2" downpipe and exhaust

RR figures (setup by me profiling the needle on the road and mapping)
163hp, 171 lb/ft
10psi boost up till 4k rpm then switch to 15psi via the ECU. (can just make out the step in the graph at 4k)



next years will be pretty similar but with an LSD, 3.44 FD and more boost

[duncancallum]

What you hoping for Nic?

[Turbo Nick]

i want 200 horses, but i'm just going to wind the boost to 20psi and see what it gives really. plus it'll let me find out how much these cheap and cheerful cast pistons can take.

[jackready]

1293 A+
stage 3 head
sw5 cam
HIFF 44
maniflow stage 2 lcb
maniflow 1.75 " side exit
79 bhp @wheels

[Sam Walters]

In process of building my current engine is sat somewhere on this thread, 118 bhp at the flywheel and did 143 on gas according to the people who build it up the first time.

next engine.

73.5mm bore
7cc forged pistons (En route)
11 stud 38x28 gas flowed head with isky valve springs
1.75:1 ratio titan rockers (Not decided between 1.5 and 1.7, 1.7 might be abit of over kill)
Kent Cams MD315 or a Kent Cams 475 im un decided.
Venier duplex timeing chain (Bomb proof!)
electric water pump
Turbo oil pump
lightened and balenced A+ (May be specilist components rods, over kill but as they are only twice as much as the work on the crank i might aswell.
4 bolt biliet centre strap (Im not convinved they make that much diffrence but its a cheap addition)
The generic performance box eg stright cut box, cross pin diff and s ratio gears.
flywheel im going to consult force racing on that one thier titanium ones look quite appealing
clutch i havent thought about yet. but defo not a padle clutch i hate the things worst thing in the world trying to get tru town.
As far as final drive i was thinking 3.9-4.2, would be lower but if the engine is going to be capable of 9000rpm might aswell make use of it.

A 40mm weber converted to a throttle body.
as far as ignition goes. mega squirt seems like a good shout.

150bhp at the flywheel is the aim, that will be my last a-series engine im afraid

[Sam Walters]

Got torque? i struggle to keep my n/a 1293 screemer under control in the wet in the town that must be mental.

[mini13]

big...

[Sam Walters]

big...

Aye certainly not a logical build and quite an engineering challenge, good luck to you!

[sir Jake the brit]

My 99 Cooper S Sport 5 (S Works)

Standard 1275 Mpi Block
John Cooper Stage 3 Head
1.5 Roller Tip Rockers
S Works Polished/Ported inlet manifold
Uprated alloy throttle body
Janspeed LCB Exhaust Manifold
Janspeed DTM System when new, now Playmini full stainless
Modified S Works Filter Box with K&N Element
Vernier Timing pulley + Belt Drive
Uprated Mpi Cam
Superchip Icon
Jack Knight 5 speed box with X pin diff

90bhp when bought new from John Cooper Garages, current bhp after non JC extra's added, not confirmed.

drool!! very nice, though do you actually think you have hit 98bhp???
whats the fueling like????

[sir Jake the brit]

in 2004 i had my car to the stunning cooper works garage and had the 90 bhp (wink!!) kit fitted.

then because rover cant build cars the rot set in (bad times!!!)
so for the last 2 years its been in a blokes garage being pretty much fully hand built, the spec when its complete is as follows:

PERFORMANCE!!!!

-John cooper works 90bhp tunning kit (stage 3 head, 1.5,1 roller tipped rocker, exhaust & manifold, performance inlet manifold, sparkplugs)
-fitted an SW5 profile camshaft but removed it because of fueling issues have now had a mini speed fast road cam fitted
-double valve spring set + new followers
-10 row oil cooler w/smaller filter, braided hoses etc
-vernier duplex timing chain
-73.5mm omega pistons
-over bored block
-84mm stroke ni-tempered, wedge bladded crankshaft
-burlen throttle body54mm
-ignition leads
-SC/CR gears
-3.2-1 final drive 108mph @ 6000RPM!!!!!!
-drop gears
-new clutch
-new steering rack
-pipercross induction kit
-quick shift
-gaz fully adjustable coil overs
-EBC grooved & vented discs, standard calipers w/green stuff pads
-twin fuel tank


EXTERIOR!!!

-bodywork fully de-seamed except roof
-de-bumpered
-wheel arches modified to get rid of the bumps & dints where the bumpers & seams dropped in!
-fog light moved and fabricated into the bum of the car!!!
-bodywork in RED
-roof in silver
-sports pack wheel arches in silver
-bonnet in silver (cooper stripes removed because too many people use them on cars that arent cooper!!)
-Fog light has been fabricated into the back bumper/metalwork


INTERIOR!!!

-standard black/silver milenium edition sports pack interior
-show cage
-dvd player
-speakers uprated + re-wired
-center console & arm rest to match the seats


it's not finished yet but what done so far is stunning!!!
will also be fitting a set of yoko A048R's and possibly some light weight satin black alloys 13" x 7"
and maybe some serious bucket/harnesses & a proper bolt in/weld in cage!!!

will be having a new injection system fitted when he's done!!!
hoping for around 120bhp maybe more!!!!

i also have a 230bhp bmw r53 mini cooper S but i guess that wont interrest many on here

Edited by sir Jake the brit, 27 December 2008 - 12:17 AM.

[Sieve]

998cc engine
Modified 1275 head, pocketed and blocked
lightened and balanced bottom end
omega pistons
sw5 cam and duplex kit
modified carb and dizzy
thick walled rockers
loads of other stuff i cant remember

Last rolling road it was showing 79.8bhp

Tom

[cheesebadger]

Bought as a 998cc non-runner.

998 block +30 thou
1098 crank
12G295 head (with big valves, think 1300GT both inlet and exhaust and modified chambers)
twin HS2 carbs
maniflow manifold
RC40 exhaust
Don't know about the spec of anything else, just found out above info when i changed the head gasket.

56bhp @ wheels. Is that ok for the given spec? This is my first mini and i dont really know....

[Mini_city10]

Hi have a 998

got a stage 1 kit on it. it has 58.9bhp at the flywheel and 47.9 at the wheels

Got it rolling roaded by Gerald Dale and its the second fasted 998 he has seen

Very proud of my old girl!!

[cap'n crunch]

Hi have a 998

got a stage 1 kit on it. it has 58.9bhp at the flywheel and 47.9 at the wheels

Got it rolling roaded by Gerald Dale and its the second fasted 998 he has seen

Very proud of my old girl!!

58.9bhp is very good!

and if you were the second most powerful 998 that makes mine the number 1 then... did not expect that.