Tuesday 12 August 2008

Engine running on megasquirt

I've got the engine running....... I'm running a megasquirt 2 ecu with a ford EDIS unit. Then using GSX-R750 Bike throttle bodies so it all fits under the bonnet. Basically the ecu controls the injection side of things and the EDIS unit drives the coil packs. More info can be found at http://bgsoflex.com/megasquirt.html.

The fuel pressure is running at 3bar and I'm using the original ford manifold air temp sensor and coolant temp sensor original coil packs, and original crank sensor (the flywheel already has the correct 36-1 tooth pattern drilled into the back of it and crank sensor mounted in the correct place.)

Before starting i checked for any fuel leaks with the ignition on and the pump running, I remember seeing a fuel hose pop off of an engine on a dyno at uni.... we all luckily survived as fuel sprayed up in the air hitting the ceiling but its not something I would like to repeat.

It started first time with a bit of coughing and spluttering.... Then I played around with the idle screw to get it idling at a fair speed.... Checked for any water leaks as it heated up (and tightened nearly all the hose clips) , then spent a while balancing the throttle bodies.... It all seems ok

A word of warning..... Make sure all your earths are sound...... My engine was earthing through the throttle cable which got incredibly hot and melted the plastic casing......

If anyone wants a copy of my megasquirt map just get in touch and 'll email it to u.... I've got a map for megasquirt 1 running MSnS-extra with GSX-R750 throttle bodies too....

Here's a video showing it running.....

Apoligies for the bad filming, it was on a camera phone......

Monday 4 August 2008

Alternator fitting to zetec engine

The original Zetec alternator is designed to power all the electrical systems within the car such as heated windscreen, rear screen, electric windows, seats etc. and is far over-rated for use on the Tiger.
I've been struggling to fit the alternator as the mounts were in the wrong position on the alternator.... after some research i did this......
Tiger specify you fit the Lucas LRA100 or LRA101. The only difference being the physical casings where the front and rear housing sections are rotated round 120 degrees with respect to each other. They are both rated the same with a maximum current output of 36 Amps which should be more than enough for the Tiger.
To determine whether the front and rear housing sections are aligned appropriately, undertake the following instructions. Looking at the alternator from the pulley end, the two lower mounting holes want to be on the bottom right and corner and the single mounting hole on the front section wants to be at the top. If they aren't, remove the three long bolts holding the front and rear sections together. Carefully split the front and rear sections apart by a couple of mm and slowly rotate them round until they are in the correct orientation, then re-fit the long bolts.
Bobs your fathers brother it fits!!!

Saturday 2 August 2008

Engine Fitted....

I fitted the engine in last week, to do this, instead of using a hoist i raised the front of the car over the engine and then lowered the car down. I'd recommend using a hoist if i were to do it again as it was a pain to do. I've also fitted the prop shaft from tiger racing which then determines the position of the engine and gearbox...... So then i could drill the holes for the gearbox mount and engine mounts.

I'd recommend drilling the holes for the gearbox mount before fitting the sides to the transmission tunnel as space is limited.... I had to jack the car up and drill them from underneath while laying on my back.... Next I rested the engine on a couple of bits of 2 by 2 and drilled the holes for the engine mounts.