further explanation for those that can understand. When i took the last setup apart, there was no...NO signs of use on the turbine. no carbon, no signs of heat, NOTHING on the turbine. it looked brand fucking new. ALSO the collector had NO signs of use. But near the head and the first couple of bends, all types of signs of use. the downpipe still looked brand new, sans some rusting.

My theory, i was losing exhaust heat like a mofo. that turbine shoulda been white or shown signs of use. NOW....if i had a smaller turbine the car woulda made power. because it didnt need all the heat to turn a T3 turbine. but i'm using a 69 trim T4 turbine in a .58 housing. so it needs the airflow as well as the heat to turn that GT40 compressor into the high airflow region of the map. right now i think its spinning the compressor enough to make boost, but its not forcing the airflow. meaning its on the left side of the map where airflow is low. the boost is there, but not airflow. if i can get turbine shaft speed up another 20,000rpm i have shitloads more air and shitloads more power. but the only way i can do that is to get heat to the turbine. the only way i can do that is to have the shortest runners possible with the least amount of bends with the least amount of chassis modifications.

Another reason i came to this idea was another buddies race car. his new turbo came in and it wouldnt let the motor make more than 550fwhp. NO MATTER what boost limit he was at. at the end of the night we were nearly at 40psi but making 550hp then the hp curve fell on its face. finally we realized that the compressor nut was loose and the compressor was backpeddling under higher airflow. IF that compressor was able to spin faster it woulda made more power, but it could only spin enough to make the boost pressure. he put a new turbo on it, and made nearly 650 hp on the first pass.

I think with this new manifold its gonna give this big ass turbine the heat it needs to force that compressor to a higher RPM and further right region of the compressor map, therefore making more power.

or i could be wrong AGAIN and make 400hp @17psi. enthalpy is running a smaller turbine than me and i think thats why he isnt having issues with his fat ass full race manifold, also the fact that its stainless further helping his heat retention properties.

but i have no schooling to quantify this.....only experiences and gut feelings. tell me if you think i'm wrong.