From the photos it appears you have a VW Scirocco style radiator. They original style usually came a single row of cooling tubes and they all came with 180* flow, which was more restrictive than standard flow. Both the inlet and outlet to the radiator are on the same side of the tank they are attached to and the tank is divided in to 2 separate sections internally. Water flows into one side and through half the cooling tubes then has to flow into the other open header tank on the other end and make a 180* turn to flow back to the outlet. Small tube and restricted flow results, but I think your system will still work. You have a filler/upper hose attachment on the manifold very similar to mine. I've found that if I fill the cooling system until the water just starts to run into the upper hose and no more at rest, the car cools well and it doesn't puke any water. Having some air space in the filler/hose attachment is necessary for expansion. With the engine cold and not running, you should be able to remove the radiator fill cap and watch the water being pumped into the radiator if all is working well. On last thing I might suggest, don't pull out of the stating lanes unless the car is at 140* or less. I've found that running my pump from the staging lanes until I'm back in my pit helps, I gain about 50* of temp in the run process and the radiator fan is turned on as soon as I make the turn-around. Glad everything else appears to be working on the car, looks like you're on the right track:)