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The Chronicles Of Area 34, formerly 55


Johann

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  • 2 weeks later...

Winter time..

sd4-1209.jpg

This morning temp was down to 15F and a bit of snow.

C30 made some progress. Most of the exhaust is finished. Wiring loom is as good as finished. Radiator, fan, bumper and headlights are back on the car.

All the plumbing is finished, fuel line and pressure sender are mounted, ignition stuff is mounted, driveshafts, shifter cables etc.

Only point of trouble is the accessory belt in combination with the steering pump. Need to find a nice solution to make it work.

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Made some progress with the C30 in the last week although things are going pretty slow..

Had the engine running for short duration using 395CC injectors but as expected this was a bit to much. Engine started on first click btw but without the water pump running because the belt wasn't on.

Engine ran smooth immediately, sound is very nice, but there were a couple of large holes in the plenum one being the brake booster vacuum connection so there was plenty of air to go with the fuel... :rolleyes:

Calculations suggest ~280 CC injectors given a power level near 180 bhp and the ECU should be capable of adapting near 20% but because the power output is only a very rough estimate I don't want to buy 280 CC just like that. A friend had some 260 CC injectors which I could borrow. Should still be capable of reaching near the same power level after which it is possible to determine how far they are off.

Exchanged the injectors tonight but didn't run the engine yet. Will do so early next week after finishing many loose ends..

Installed a 100 CPI metal cat,

100cpicat.jpg

Need to lengthen the rear lambda cable.

Ran in to many issues with the 1.6 steering pump so I decided to ditch the pump and go the same route as I did with the SDM project, an Electro Hydraulic pump as used in Mercedes A-class.

Behind the bumper is a nice bracket which normally holds the EH pump as used on the more expensive models so i took it out and fitted the Merc pump,

ehps-1.jpg

Makes a nice fit behind the bumper,

ehps-2.jpg

And the reservoir can be reached by taking out the headlight,

ehps-cap.jpg

Headlight can be removed by pulling out one pin, no bolts are used.

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  • 3 weeks later...

Some progress made..

Late December I had the engine running with the stock 1.6 EMS but it gave a lot of trouble. Engine didn't want to idle well. Only between ~2500 and 4500 rpm it ran nice. Mild load acceleration went very nice but that was basically it. I had expected a bit more from an adaption point of view but it appeared the larger E-throttle body was messing things up. MAP at lower RPM was off and not much I could do about it except installing a piggyback to manipulate MAP values maybe.

Downside of the piggyback is that it can't control spark. Putting in a lot of effort rewiring only to gain fuel control seemed a bit useless to me.

So, no piggyback. The next best option was to try and make the standalone management work. It's the Linkplus G3 management I have used in the red SD-C project car. Plan was to disconnect injectors and coil from the stock EMS and put the Linkplus G3 in place. Using wasted spark and batch fire injection for a start just to see if it will run.

About a week ago I started with the search for a firewall passthru but there wasn't much to be found.. :(

Removed the glovebox from the dash and found a nice open spot to make a passthru. Used a 50 mm punch cutter to make a hole in the firewall and fabricated a flange to make a seal once the loom is in place.

plekzat.jpg

Next the Linkplus ECU was mounted in the glovebox and all the needed wires sorted.

wiresagogo.jpg

Wideband wires added and last weekend I began mounting all the sensors and fabricating a bracket for a second crank sensor to steer the Linkplus. The OEM sensor is still steering the OEM EMS.

Yesterday I had all setup in such a way that it should be possible to start the car but being alone I was a few hands short adjusting the ignition.

Tonight a friend helped to get the ignition sorted out and the engine ran for a couple of minutes. Still a lot of things to do like cleaning up the loom, wideband need to be installed and after that it should be possible to get the engine running like it should.

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