TBIThrottle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.
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ok i want to install a glowshift 30 psi fuel pressure gauge but my question is where and how can i put the electric sender in?has any one done this before i found this http://www.rvmorsemachine.com/product.htm the adapter for tbi fuel pressure gauge but will a electrical sender fit under the air cleaner?
how about you just position the adapter so the gauge fitting faces outward and not upward. also, make sure the sender is 1/8" NPT, otherwise you will need an adapter.
also on a side note, if i was to use the fitting from the first link, could u plumb ur fuel feed line from there for a nitrous kit along with the fuel pressure sensor or would that affect fuel pressure negatively?
Considering the following --
"There are no stupid questions.
There is however, an abundance of inquisitive idiots." --
I'll pose the question anyhow, confident that the usual expertise here
on the boards will enlighten me.
On these tbi units, what does monitoring the input pressure indicate
other than the output of the pump, which I assume will be rather constant.
I assume for tuning, one would be interested in the pressure drop as
rpm/load increase, to insure that adequate fuel is being delivered.
True/False...
I can understand measuring pressure between the regulator, and the
injectors. But how can this be accomplished on tbi's?
I use the same fitting and put it were the flexhose connects to the hard fuel line next/behind/under the alternator on the fuel feed line (top).
Quote:
Originally Posted by l_dis_travlr
On these tbi units, what does monitoring the input pressure indicateother than the output of the pump, which I assume will be rather constant.
I assume for tuning, one would be interested in the pressure drop as
rpm/load increase, to insure that adequate fuel is being delivered.
True/False...
I can understand measuring pressure between the regulator, and the
injectors. But how can this be accomplished on tbi's?
It shows the pressure applied on the injectors. It is supposed to be stable, but all tbi cars I have mesured FP indicate a 0.5 - 1 psi movement of the gauge as you open the trottle quickly.
The pressure is created betwen the fuel pump and the block-off diaphram of the return line (regulator).
