FPR- When to upgrade
Ted,
Bling or not, as you know one of the easiest ways to destroy a motor (especially at 500whp where your window for error is much more narrow than at 250) is fuel starvation. Why risk being the one that "proves" that the fpr is a weak link, especially for 200$.
I say replace it. I know I did.
Bling or not, as you know one of the easiest ways to destroy a motor (especially at 500whp where your window for error is much more narrow than at 250) is fuel starvation. Why risk being the one that "proves" that the fpr is a weak link, especially for 200$.
I say replace it. I know I did.
Yup. Bigger rail, bigger injectors, more fuel, why have have a decent regulator. 
You can get one at Lancershop for 150 that will bolt right onto the rail.
And I agree with what Kevine326 says. Why have a tuning nightmare with fuel pressure you can't control.
You can get one at Lancershop for 150 that will bolt right onto the rail.
And I agree with what Kevine326 says. Why have a tuning nightmare with fuel pressure you can't control.
If anybody is seriously interested I am selling my Aeromotive FPR with lancershop adapter piece and all the SS lines to hook it to the factory hard return line. I have upgraded the fuel system and no longer in need of this. PM me and I can send you pics tonight.
Originally Posted by bolsen
Bling or not, as you know one of the easiest ways to destroy a motor (especially at 500whp where your window for error is much more narrow than at 250) is fuel starvation. Why risk being the one that "proves" that the fpr is a weak link, especially for 200$.
The FPR has not demonstrated a propensity for failure. Therefore, it is not a statistical risk. Furthermore, if it did fail, the result would be a rich condition - not engine failure.
very true /\ this is what im mainly finding out talking to local tuners etc... and some venders and guys with high hp saying not really nessicary unless ur in like the 550 range+ my main concern was not it failing but more of would i need one in order to be tunned correctly
Then what you can do, is put the car on the dyno and monitor the fuel pressure. Monitor the pressure at idle, then put the car under load and monitor the pressure under boost. At max boost, the pressure should equal the pressure at idle plus the boost pressure. So long as this checks out ok, you are in good shape, and there will be no problems with tuning.
Not so much that the Stock FPR can't flow the fuel needed, but what abou those that want a Linear fuel curve, I do not think it is possible with the Stock FPR as the base Fuel pressure shoots up.
