[quote]
Originally posted by "ACR2NV"
Originally Posted by 4sfed 4
i dunno Larry but i just cant grasp how a stock RT can run those numbers at such low boost i mean are you saying you were only running "10psi" with a spike to 12...i mean the numbers are impressive but the fuzzy math isnt.....what is it come clean...how much boost you running?
Nothing to come clean about! No fuzzy math!
The car only has the things done to it that I posted above. The key is ditching the horrible factory exhaust.
To give you an example, a bog stock R/T on the same dyno made 186 whp / 200 ft lb. Stock boost is 11 psi. The factory exhaust necks down to 1 7/8" in the rear! You can imagine how that chokes the engine.
So by basically ditching the factory exhaust and cleaning up the exhaust manifold and head, you can pick up over 40 whp while still running a tad less boost. To be honest, Ill bet 90% of the gain was from the exhaust alone with the balance from the light cleanup of the head and exhaust manifold. (I was too lazy to even touch the intake manifold.)
My car had the 3" exhaust with no cat and a very free flowing muffler (Race Magnum.....aka LOUD!), a cone intake instead of the factory airbox, some very light clean up of the exhaust manifold and the head ( I spent about 2 hours with my dremel doing both pieces), an adjustable fuel pressure regulator, a fresh valve job, and thats it.
Im hoping to go back to the dyno shortly while still on the stock turbo and IC and make some higher boost runs with the +40's and see what I can eek out.