Sent 25 September 2016 - 03:03 PM
Engine spec: 1275 Standard metro A+ engine, 940 Big valve head (31mm-36mm) Evolution1 cam, duplex, LCB 1.75", CR 9.4:1, final drive 3.105:1
Hif44, BDL needle, M/spares inlet manifold
thank you in advance
Sent 25 September 2016 - 05:07 PM
hi, I am using a Simonbbc powerspark 45d leccy dizzy and coil, 2 1/2 yrs ago, the car is my daily, as for CR, i have put the engine number (12A2BGO3) in a de-coder and that came up, not sure how else to tell what it is,
Michel
Sent 25 September 2016 - 06:05 PM
As far as I know it is 21.4 cc
Sent 25 September 2016 - 07:27 PM
even after a rolling road sesh in january (SMMC), although that was with a TwinHs2 set-up, he never pulled through all the gears and rev ranges smoothly, bob weights come to mind and not sure whether the powerspark dizzy who was bought original for the engine with a standard cam, can cope with the Evolution1 cam
Sent 25 September 2016 - 07:45 PM
further, although the valve clearances are set as inlets 12 thou and exhausts at 14 thou, cylinders 2 and 3 have a light rev drop when removing lead one at the time in comparison with cylinder 1 and 4. compression is at 180 on all 4. new leads and plugs.
Sent 25 September 2016 - 07:59 PM
I your opinion, with the given facts above will recurving be the solution to eliminate the problems, further how long will I have to 'loose' the use of the car, and how do I proceed .....?
Sent 26 September 2016 - 06:10 PM
Ok thank you, I have found a 65D metro leccy (Plastic box on the side of it) today with coil.....i did a swap with the powerspark one and runs smooth for now, will check the curves tmz with the strobe on 1000-1500-2000 etc after a good run and will let you know, we can discuss the findings then and decide what will be the best plan of action.
Sent 27 September 2016 - 09:54 AM
will give it a go, eye protection...? in case summit flies out??
Sent 27 September 2016 - 04:04 PM
right here we got some figures, vac disconnected
8 at 1000
12 at 1500
15at 2000
20 at 2500
22 at 3000
24 at 3500
I left it at that for now
are they acceptable numbers?
Sent 27 September 2016 - 07:09 PM
yep understood, give it another go tmz and hopefully get you the 5000 reading
Sent 27 September 2016 - 08:15 PM
the higher the better I guess, what are we aiming for?
Sent 27 September 2016 - 10:39 PM
lol, neighbours might not like that...
- Location: Midlands
Sent Today, 03:02 PM
hi, done the readings again and they are as follows
8 at 1000
10 at 1500
15 at 2000
20 at 2500
22 at 3000
30 at 3500
35 at 4000
35 at 5000
give and take 2 degrees those are the readings with vac plugged
cheers
Sent Today, 07:35 PM
Ok so here we go, can you send me your details postcode paypall address etc so I can get this one off to you....
Edited by minimuk, 30 September 2016 - 08:18 PM.
