Originally posted by Neil Fowlie
for example my old fwd eagle talon dynos at 145 whp stock (10psi) after TBE (with cat) 170whp (13 psi)
after i had my turbo ported, I tried setting the boost back to stock(10psi) with the TBE, dynoed at 151. Then same day turned the boost up to 13psi power back up to 170whp
So basically the TBE gave minimal gains on its own
all the claims from the aftermarket shops were kinda
misleading. Taking the credit from boost creep
in their hp increase claims.
the gains on a turbo car with an exhaust are typically 7-10% from my experience, even on cars that don't spike.