Hey,

Question: I have the Losi Raminator 1/8 scale with pull start. I just bought the HPI Nitro RS4 RTR 3 Evo, which came with the spin start, if i bought the spin start rod for the raminator can i use the spin start from the car?

You need to find one that fits. Otherwise yes you can have it (it's called rotostart btw I think)
I think Tiger Drive is the company that makes them

well i can get the rod and backing plate for the raminator, will the hpi roto start handle the .26 motor, becuase the roto start came with a .18 motor