View Single Post
beepbeep beepbeep is offline
Registered User
beepbeep's Avatar
Join Date: Jun 2001
Location: Sweden
Posts: 5,634
Originally Posted by Dynamohum View Post
I'm in the middle of a 3.2 turbo conversion with a 350 to 400 hp target. Question what VE to use on calculations? To match a Garrett turbo to the my desired shifting power band of approx 3000 to 5000

As you pointed out E85 is the other option and I'm looking at also. What injectors and fuel regulator would you recommend?
Work backwards by entering N/A 3.2 values and adjust until you reach rated power and substract couple of %. That would bring you near.

VE depends heavily on cams, so there is no clear answer.

Also, remember that matching turbo size so efficiency best at power peak will give you very laggy engine. All manufacturers "downsize" turbo to reach reasonable trade-off between driveability and power.

P.S. Chart power estimate seems to be a bit pessimistic with OEM 930 values...

E85 means 40% bigger injectors than petrol ones. So just multiply calculated figures with 1.4 and budget for more fuel flow (pump-wise)
Thank you for your time,

Last edited by beepbeep; 02-04-2009 at 10:00 AM..
Old 02-04-2009, 09:57 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)