Single Turbo RX-7's Questions about all aspects of single turbo setups.

Fuel Regulator

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Old 01-28-05, 03:24 AM
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Fuel Regulator

Will the stock solenoid do for a single T04B setup? or should i get a fuel regulator?

also if i have to, where could i get one for the best price?
Old 01-28-05, 06:56 AM
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The stock fuel pressure regulator (that's what you are asking about, right? it isn't a solenoid, although there is a solenoid connected to it to hide the vacuum signal on hot starts or something like that) is fine unless you:
a) install an aftermarket secondary fuel rail
AND/OR
b) want to run higher than stock fuel pressure

-Max
Old 01-28-05, 10:53 AM
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would i have to run higher then stock fuel pressure to boost 13-14 psi on 4, 850cc? So do i even have to plug in that solenoid. Can i just run it without buying an aftermarket fpr?
Old 01-28-05, 05:19 PM
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You don't need an aftermarket FPR. The stock one will be fine for your setup.

The solenoid that connects to the FPR can be removed if you want, but it won't help or hurt performance in any way. Please note that he solenoid is really a completely separate component from the FPR itself. The FPR is not a solenoid, and that FPR solenoid is not an FPR.

-Max
Old 01-28-05, 07:25 PM
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ooo thanks max cooper. so i can just take it out and it will all be fine so i wont even have ot buy a FPR niceee
Old 01-28-05, 07:54 PM
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You can remove the solenoid that connects to the stock FPR. Just make sure to keep the line that goes to the FPR:

BEFORE:
FPR--------------solenoid--------------somewhere

AFTER:
FPR-----------------------------------------somewhere

You cannot remove the stock FPR.

-Max
Old 01-29-05, 08:42 AM
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Originally Posted by maxcooper
You can remove the solenoid that connects to the stock FPR. Just make sure to keep the line that goes to the FPR:

BEFORE:
FPR--------------solenoid--------------somewhere

AFTER:
FPR-----------------------------------------somewhere

You cannot remove the stock FPR.

-Max
The original "somewhere" is a nipple on the LIM from #1 rotor. Any boost pressure source after the throttle body will also work.
Old 01-29-05, 11:44 PM
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I had a TO4B.Stock stuff but the ecu was reprommed By Techno Square. I ran 14.5 .turned 12.4 1/4mile.
boost all the time for two years on stock motor too. 325 whp@13.5
Greddy IC.
I just got a whole new everthing motor,fuel ,Turbo all out.
Old 01-30-05, 03:05 AM
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325 whp @ 13.5 psi? hmm what other mods did you have. think id be able to hit 350 whp with 4 850 cc inject, apeix powerfc, straight pipe, fuel pump, fmic,
Old 01-30-05, 10:47 AM
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no...I had a leaking ex.manifold...stud backed out. Stock injectors,stock manifold,stock ECU just remapped,GreddyI.C. and the CarTech T04B with FB manifold(modified). Ptrim,.81turbine,50A/R
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