First, a few basic specs:-
MS1 V3 pcb with direct coil control, launch control and nitrous control - kindly supplied by Bill Survinton in the UK.
1987 Pinto SOHC bored out to 2078cc
AE 93.45mm pistons
ARP head stud kit, rod bolts and flywheel bolts
Ported cylinder head, standard size vlaves, 3 angle valve backs, bronze valve guides
Burtons steel lightweight flywheel
AP Racing clutch
Piper OHC134 high lift, high torque cam, adjustable vernier pulley
High pressure/high flow oil pump
Shortened and winged sump
Suzuki 750cc GSXR throttle bodies - spaced to suit custom intake manifold.
Vauxhall Calibra 2ltr turbo high lift fuel pump
Weber 4bar fuel pressure regulator (gives 340cc injector capacity)
A few photos:-
http://web.bethere.co.uk/amigafan2003/i ... ottle1.jpg
http://web.bethere.co.uk/amigafan2003/0 ... inein2.jpg
http://web.bethere.co.uk/amigafan2003/0 ... oldtop.jpg
http://web.bethere.co.uk/amigafan2003/1 ... novate.jpg
http://web.bethere.co.uk/amigafan2003/03_08_08/side.jpg
And a vid of it idling sweetly
http://smg.photobucket.com/albums/v25/a ... 0_2657.flv
SO, it's taken about two years to get to this stage as I've been doing the Megasquirt install at the same time as the actual car build but it's been a great experience and I've made a few mistakes along the way:-
1: Had a fair bit of hassle mounting the VR sensor - a Pinto has nor 36-1 wheel as stock and a remarkable lack of places to mount a bracket. I scrapped the first bracket as even though it was 4mm alli, it still vibrated. I've now got an extremely over engineered brackt made out of 3mm right angle alli with all kinds of bracking - it's rock solid now though.
2: Once I got the VR signal sorted, I couldn't get any spark. Ford, in their wisdom, made the 12v pint of the coil pack plug black - so ofc I wired it to ground. So MS was trying to ground an already grounded circuit - took me two weeks to figure it out - including sending the unit back to Bill for testing! (Thanks for that btw
3: An annoying misfire on cyl no.1 - spent AGES trying to track it down and was slightly embarassing when i found it:- The manifold has four take offs at the top that I've hooked up to the map sensor and the fuel press reg. Now, under the manifold for cyl no.4 there is another take off that I thought I'd blocked off - well, I've no idea where the plug had gone but it wasn't there. I can only summise that as I upped the fuel - to cope with the extra air being drawn in, no.1 cyl which is furthest away from the "leak" was running mega rich, fouling the plug and hence misfiring. Plugged the take off again (araldited and zip tied this time!), a slight tweak of the fuel map and it's sweet
4: Really struggled with either:- Getting it to idle so it would pass an emissions test AND getting it to start and warmup properly. I couldn't get it to do both so for the SVA test I loaded in a "warmup" map, let it warm up then loaded in an "emissions" map
passed with 1.11% CO and 74ppm HC. I've now upped the warmup and ASE settings a bit and lowered the VE idle entry a bit and we're getting there - a comprimise I believe it's called So, I've been out for several jaunts and megalog viewer and VE analyser is getting the fuel map pretty darn close and I've now enable accel enrichment which is working fairly well. So, just fine tweaking to go and once the car is registered properly I'll do some long drives out and get it on a rolling road to tune the spark map.
What a great experience and such satisfaction