suby hotrod motors, Probably cost equal to a really good porsche 6 Options

[charliew]

http://forums.nasioc.com/forums/showthread.php?t=1699103

These motors are probably 15-20k once they reach the track. Just a offhand guess. As my son has spent 13k on a street motor with no tranny mods. Just motor, ported heads, bigger cams, 100mm bore, open source tuning with datalogging and utec piggyback, bigger injectors, bigger fuel pump, bigger oil pump, front mount ic, 8qt oil pan, true cold air intake and a 30r rotated turbo at 26 psi. Conservative tune about 425awhp. Also no water or alcohol injection yet.

[charliew]

A 2.0 wrx converted to a 2.5 shortblock is called a hybrid on nasioc. Not a real hotrod suby just a upgrade when the rod spins usually. The characteristics of the 2.5 with the 2.0 heads, cams and turbo is that it will not have enough breathing at 6k and above. The fact that it is in a lighter car might help a little when it's in the 914, but it will never have the higher rpm power of a true 2.5 sti. The sti has bigger cams and a bigger turbo to go along with the avcs cam control that gives a broader torque band especially at lower rpms. Even sti's with aftermarket cams run out of steam at high rpm without getting bigger valves and porting. The wrx 2.0 is pretty well a balanced combination that is reliable at the stock power levels until a 20 year old starts pushing it. It will live pretty well with a more mature user with mild upgrades up to about 260 awd hp on 91 octane. Adding the 2.5 shortblock gives it more low end torque and a little more hp. the noticeable improvement is usually because it's a new lower end with better ring seal and more displacement. Subys use oil when they are pushed hard and are boosted more. When they get low on oil the rods spin.