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What Spec Is Your Engine?

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#76 Bluemini


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Posted 08 February 2006 - 05:42 PM

This has kinda been started already in another thread a while ago...

Looky here

#77 shawn smith

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Posted 08 February 2006 - 06:36 PM

This has kinda been started already in another thread a while ago...

Looky here

doh!!! sorry bout that. but i only registered a few days ago so i have an excuse :lol:

#78 The Matt

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Posted 08 February 2006 - 06:52 PM

Mine is a 1984 Mini City E 998cc, with a couple of mods :fear:

#79 Floyd


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Posted 08 February 2006 - 07:02 PM

1978 Mini 1000 (mg metty lump thou)
0-60 mph = 13 sec a little slower then Clubby1275GT
0-100 mph = Duno, takes the *yellow human water* after about 70 thou
Top Speed = Off the clock.

planned performance mods


#80 Sam


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Posted 08 February 2006 - 07:22 PM

55+ bhp

You wish! :lol:

1973 Mini Clubman, 1275cc Metro engine, stage 1, ported/polished head
65 bhp (estimate)
0-60 mph = eventully
0-100 mph = never tried going that fast
top speed = not done a top speed run.

planned performance mods = none. Working on my blue GT. planned performance mods on that = 1293 turbo, low comp head, avonbar phase 2 cam. Then once its run in, a good rr session, and up the boost a little.

#81 RacingGreen


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Posted 08 February 2006 - 08:12 PM

Coopers do 14.8 though!

0-60 on an early 90s cooper is 11.2 not 14.8

1990 Cooper RSP 1275cc engine
0-60 - No idea, never driven it
Top speed - as above really :lol:
Planned mods - Stage 4 Morpseed Head, uprated cam, twin carbs.

#82 Jammy


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Posted 08 February 2006 - 08:17 PM

Topics merged with the one Bluemini linked to!!!!

#83 The Matt

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Posted 09 February 2006 - 06:27 PM

Topics merged with the one Bluemini linked to!!!!

Thanks Jammy! :wink:

Now then, I can do a serious post.

Mine is a 1275 block offset bored to 74mm, standard stroke (1398cc),
Ultralight flywheel and pressure plate,
Kent 286 megadyne camshaft, vernier timing gear,
Soon to be a stage 4/5 head (prollly 36 x 31 valves),
Weber 45 DCOE
Maniflow large bore LCB (might go for a phase 2)
Straight cut close ratio box and drops

I would like to see 100-110 BHP at the wheels
Hopefully will return 0-60s in under 8 seconds (maybe even in the 7's)?
Dunno about the 100 mph stats, I aint bothered about top end!

Wonder if anyone has built similar and could tell me their stats???? That'd be nice :grin:

#84 MRclubman1100cc


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Posted 20 December 2006 - 04:39 AM

Mine. fully rebuilt 1098cc, 1.5'' SU, 1.75" exhaust, extractors, alloy intake, custom air box and replacment filter, gets along ok.
parts to get:
swifttune cam
lightened flywheel
1.3 ratio rockers
1275 head

#85 jameswildcooper


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Posted 20 December 2006 - 08:38 PM

im currently building a supercharged 1380 heres the bits i have so far for the engine still have a few more bits to get before it goes together.....

1) Stage 4 MED cylinder head (ported, polished, skimmed and 27cc chambers)
2) Eaton 45 supercharger
3) Crank (reground, balanced, wedged and X drilled)
4) Con rods (lightened, stress relive and shotpeened)
5) 286 Kent cam
6) Webber 45
7) Intercooler
8) Sports clutch
9) Lightened and balanced flywheel
10) Vernier adjustable timing chain
11) Block (bored to 1380cc and 20 thou skimmed off top)
12) Mini spares pistons (dished 10cc)
13) 1.5:1 roller tip rockers
14) RC40 exhaust

0-60 maybe 6-7 seconds hopefully?

BHP? hoping for 150+ but your guess is as good as mine :w00t:

#86 edd


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Posted 22 December 2006 - 11:16 AM

This is my engine,

this is what KAD say is in her so i belive them lol

Carburetted engine: 140-50bhp, capacity 1380cc.
KAD latest spec small valve 16 valve cylinder head with belt assembly,
L1 inlet and BD3 exhaust cams, 11.5:1 compression ratio
A+ block with four bolt centre main cap, bored and honed
73.5mm flat top Cosworth forged pistons
Vandervell Competition engine bearings
Metro turbo crankshaft 81.28 stroke
Metro turbo conrods, lightened balanced and shot peened with ARP bolts
HP oil pump, water pump
Twin Weber 40 DCOE carburettors
Aldon distributor with Ignitor Electronic ignition
KAD alloy flywheel and backplate
AP grey diaphragm pressure plate and clutch
4-2-1 exhaust manifold and 2" bore twin box system
Top and bottom radiator hoses, top radiator mounting
GRP 16 valve bonnet
Posted Image

#87 jono fd3

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Posted 22 December 2006 - 11:48 AM

MG metro 1275cc:

Over bored to 1310cc
Flowed valves
Ported & polished head MG inlet manifold ported & polished to match head
1 3/4 HIF44 SU, ported knife edged butterfly
K&N filetr
Kent 276 kam
Lightend & polished rods
Lightend flywheel
Std clutch
Std MG Crank
Std MG box & Drop gears
Peter loyd rallying 3 branch (LCB) Manifols
Play mini twin box stainless system
MG Electronic ignition
Cooling fan replaced for elecy one
Cooper S oil bipas valve (Higher oil pressure)

Some things I've missed but cant remember them!!!

Edited by jono fd3, 22 December 2006 - 11:50 AM.

#88 Jordie


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Posted 23 December 2006 - 11:57 AM

Building still

MG Metro bored to 1330cc
1.75" HIF44 Carb running K&N filter
Minispares Inlet
LCB exhaust with RC40 system
286 Cam
Polished Crank
Turbo Oil Pump
New followers, bearings, gaskets etc etc
Standard pre verto clutch
Standard MG metro Unleaded head
Standard MG metro gearbox.

#89 rozzer!


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Posted 29 December 2007 - 10:19 AM

fifi had an engine built after mum moaned continuously about the ever growing puddle of oil that was under her!

998 block bored +60 thou to 1046cc
crank reground to next size after 1 too many times sideways round roundabouts with the oil light coming on!
cam sw5-07 swifttune kit.
conrods were shaved and polished to a mirror finish.
block was pocketed to alow for exhaust valve clearance.
12g940 head was used. ported and polished as far as could be done. un known valve size but they are large!
double valve springs.
standard rockers.
lightened standard flywheel.
balanced bottom end.
standard clutch.
maniflow stage 1 manifold.
maniflow centre exit 1"3/4 system.
32/36 dgav weber carb, modified to non cold start by the rr as it didnt work too well.
itg foam filter, as big as i could get under a non raised bonnet.
guessworks standard rebuilt gearbox. strengthened diff pin. 3.44. centre pickup.
higher pressure ball and spring for the oil pressure.
afaik minispeed yellow dizzy with electronic ignition and platinum tipped plugs.

rolling road guy spent ages trying to jet the weber as it was not only all over the place but the jets were sizes he wouldnt normally use in a mini! he moaned continuously that it wasnt an su aswell!

ignition was set to 32 degrees with the vac take off on the carb blocked off.
torque figure is 57.9lbft
bhp figure is 58.9 bhp.

both of these figures will go up when its setup again as the valves bounced at 6126 rpm. this is due to the springs in the headd being old and not being replaced when the head was rebuilt.

a NEW head has been purchased for this engine with the intention of getting a double spring kit from swifttune and have this ported and polished. however i recently took on a new project and fifi may not recieve this new head. i dont sit at 6k for long periods anyway as that equates to 110mph. normally i am found a bit slower!

#90 roofless


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Posted 29 December 2007 - 01:46 PM

Blue Nun:

Yamaha R1.

20 valves
6 speed sequential
158 BHP

running standard Yam ecu and injection / throttle bodies.


Morspeed fast road BMW 16valve headed 1380
4 speed straight cut close ratio box, straight cut drops and 4 pin diff.
estimated 145-155Bhp
running aftermarket ECU and BMW injection / throttle bodies

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