i have bought a hi-torque starter which has a solenoid attched ,does anyone know how to get rid of the starter solenoid on the fender wall,i know the wiring to the new starter but what do i do with the wire that returns to the coil on the front right hand side of the fender solenoid  

Does your new high torque starter have the ignition terminal on the the solenoid also? If not, you can wire all of the wires to the battery side of the starter relay (the big wires that are used to supply 12V to the carand starter) You will need to splice the "start" wire to go to both the relay and the new solenoid. (cut the push on terminal off and replace it with a lug. Put another wire (16 ga) and lug  on the same terminal and route it to your new solenoid to initiate the cranking function)  

yes the starter has a ignition terminal on the solenoid attached to it,and want to use this instead of the starter relay,in fact i want to get rid of it totally,think im nearly there but not sure about the wire on the front of the starter (the round post wire nearest to the rear of the engine bay) the one that returns to the coil. just one of the hurdles ive come across on having a new engine.cheers for any help.  

The wire going to the ignition coil is there to bypass the resistance wire, providing a higher voltage at the coil during cranking.  (The battery voltage drops during cranking.)  I think the resistance wire is disconnected along with all accessories during cranking, too.

You could add a relay to the new solenoid such that it closes when the starter is energized.  +12v on one contact, wire to ignition coil on the other relay contact, + side of the relay's coil to the solenoid's post going to the starter, - side of the relay's coil to ground.  

pkbkfcw:
The wire going to the ignition coil is there to bypass the resistance wire, providing a higher voltage at the coil during cranking.  (The battery voltage drops during cranking.)  I think the resistance wire is disconnected along with all accessories during cranking, too.

You could add a relay to the new solenoid such that it closes when the starter is energized.  +12v on one contact, wire to ignition coil on the other relay contact, + side of the relay's coil to the solenoid's post going to the starter, - side of the relay's coil to ground.

This is mostly correct. As stated, the second (ignition)wire from the starter relay (Fords) or solenoid (GM/others) is to provide the coil with battery direct voltage during cranking to make the spark hotter thus leading to more energy to ignite the fuel mixture in the cyl(so another relay suggested is not necessary). The rest of the circuit wiring doesn't matter because you will have direct battery voltage to the coil from the solenoid terminal.  

If the solenoid on your high torque starter motor has the ignition terminal, this is the wire that goes directly to the coil (+) terminal. The other small terminal goes to the ign switch to initiate the solenoid for cranking. Since you have these circuits in place you can completly remove the existing starter relay. I recommend that you use the existing wiring and reroute the control wires(start and IGN) down to the new solenoid. You will also need to find a place for the other one or two 12 volt feed wires that are on the battery side of the existing relay (maybe a small 1 pole terminal strip) and obviously you will need to put a longer starter cable on between the battery and the starter.

I would agree with pkbkfcw. If you don't have the (I) terminal on your new solenoid, the addition of a relay is a good way to to add that cranking battery voltage to the coil.  

what type of relay was u thinking of, a 20-30 amp single pole three prong relay or a dual relay single pole relay,electrics not my strongest point  

A single pole, single throw relay.  Most car parts stores carry a universal relay for folks doing things to their cars.