Originally Posted by
Red16
Oh and Dave Walker (The Emerald guy in Norwich) doesnt know shit about turbo's! He said my mates 2ltr zetec engine with Cosworth t3 turbo wouldnt make anymore power if the boost was increased past 9psi... all that would happen would it would get hotter and then it would start losing power. He said because it came on boost so early the only way to get it to make power past 5500rpm was to fit a much bigger turbo.
Mr Walker's in Watton, I believe....
Is that with the standard Zetec cams and pistons? Or have you got ones designed for a turbo application running boost higher than 1 bar? Or did I misunderstand CalibreDan:
I always thought that oversized turbos on VTEC's was the done thing - Keep the CR high, NA cams with some overlap, and throw boost at it higher in the rev range when the VE drops?
Yes I know a VTEC isn't a Zetec, but they're both N/A engines which Honda and Ford respectively, didn't design to have a turbo stuck on the side at the factory.
Feel free to help me understand, people
