Whipple 4ltr instal - what's optimal boost?


Namor

Namor

GT Owner
Apr 5, 2008
49
London, UK
About to order a 4ltr Whipple for installation. Not sure what boost to run?
Whipple said the car they dyno'd ran 21psi but I've also heard 19psi is the sweet spot.
Has everyone got over concerns about running close to the limit of the fuel pump and inlet hoses. Presume the inlet hoses can be easily reinforced not so sure about fuel pump.
also, if I don't want the car to run to lean for dyno set up (have seen others with scare stories on this), especially on overrun, so what should I watch out for??

How many ponies am I going to be loosing on 4ltr installation by running accufab X-pipe instead of Ford Racing Headers?

thanks for any tips.
 
 
Namor said:
About to order a 4ltr Whipple for installation. Not sure what boost to run?
Whipple said the car they dyno'd ran 21psi but I've also heard 19psi is the sweet spot.
Has everyone got over concerns about running close to the limit of the fuel pump and inlet hoses. Presume the inlet hoses can be easily reinforced not so sure about fuel pump.
also, if I don't want the car to run to lean for dyno set up (have seen others with scare stories on this), especially on overrun, so what should I watch out for??

How many ponies am I going to be loosing on 4ltr installation by running accufab X-pipe instead of Ford Racing Headers?

thanks for any tips.
Click to expand...

I am getting ready to post our lattest figures on the 4.0 Whipple. We have gone through alot of trial an error the last 3 months. Call me if you like, Rich at The Mustang Ranch 303-931-5412.
 
PLEASE post your findings and opinions when you get a chance.

Larry
 
Any updates on the 4 liter whipple: fuel pumps, injecotrs, any other issues?
 
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