Yes, you can make 19 - 20 psi w/ the 2.9. I have the 2.9 and am making 19psi with a 3" pulley. The wheel HP you're wanting is easily within reach of the 2.9. Save some money. I believe a 2.85" pulley will get you 22psi with the 2.9, and you can order the kit with that pulley already installed. I'd stick with the 2.9 and not have to worry about lowering the engine or getting a new hood or moving the engine forward.
Great! thanks for the feedback Premi.
What kinda Hp are you making? and with what mods?
I would assume a larger TB, Injectors and fuel pump would be minimum requirements to upgrade at 20psi.
Here are my plans, please comment on what you think of each upgrade ie mandatory/waist of money.
#1. 2.9L Whipple
#2. 65MM-75MM TB ? Not sure who makes a good TB any ideas?
#3. Dual Fuel pump? FRPP or any other high per brand pump?
#4. Crusher CAI inlet
#5. 3’’ aluminum FR Drive shaft
#6. SCT-3 Hand Held & custom tune with 3 settings
Without going to the 4L I will save huge on lowering kit and it sounds like just a big waist of money for power I wouldn’t be able to use.
Thank a ton for your feedback guys. It feels good when you get some good advice before dropping 60-70k...haha
BTW I am selling one of those 2008 Saleen Racecraft 420s (1of31) for a steal if anyone is interested.