I have a stock auto engine. It's chipped, has had the filter and exhaust modded and i've a Profec B controller.

 

I've always had the controller set to 14psi but would like to know the reasons for not setting it to 21psi. I know that with my auto tubs i can't hold 14 psi at the top of the revs so i expect if it can achieve 21psi it will be over an even shorter rev range.

 

This is all to get the best 1/4 mile times with what i've got.

no, you'll need it dyno tuned and more fuel so larger injectors or bumping up the fuel pressures

Those little auto tubs are going to be well out of their efficiency island at that pressure. and I highly doubt they will last any length of time either.

You would be best talking to Noz about what pressure to go to, and getting them mapped for that, as extra boost without extra fuel can= blown engine

Ok, I'll leave it at 14psi. Just wanted to check! :thumbup:

Ok, I'll leave it at 14psi. Just wanted to check! :thumbup:

 

Wimp!!!!:tt2:

Turn it up.:scared:

There is nothing better than seeing cars self destruct on the 1/4 mile:clap:

 

:lol::lol::lol::lol:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Only joking!!!:biggrin:

:no::no::no:

 

I'll just be leaving my PRofec B-specII settings as they are:

 

Boost Mode Lo Hi

set 55 75

gain 15 10

start boost 40 120

warning 5.0 10.5

limiter 10 3

 

Wish i could understand it all...:headvswal

As said get it mapped you will gain even still at 14 psi, and will likely be able to run more.