I've bought a second hand forged engine. Before i take the car for mapping at TD i would like to drive it round the block to make sure its not leaking anything ect. At the moment i just have a standard ECU fitted (TD are fitting emanage and boost controller when i go up) I have a TD05 turbo with a external wastegate with a .8bar spring. Should i put a lower spring in to take it round the block? or is it ok to keep the .8bar spring in? Anything else i should look out for? Cheers, Charlie