injectors with FMU
07-11-2004, 09:15 PM
#1
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Join Date: Jun 2002
Location: Beaufort,N.C. U.S.A.
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injectors with FMU
I am wondering if stock 22lb injectors will be o.k. while using a Vortech FMU with 8:1 ratio calibration on a 92 Z28 TPI ( Paxton supercharger @ 6lbs boost ) ? Thanks for any advice.
07-12-2004, 07:28 AM
#3
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Thanks ROOSTER93V8, I have had alot of people tell me to dyno it. I think the closest place to me that can do this is a place called Turbo Tune in Greensboro, about a three hour drive from me. My stock fuel pump just bit the dust, so maybe after I install the new one ( Walbro 255LPH In-tank ) I will look into a good dyno tune. Thanks again for the reply.
07-12-2004, 09:53 PM
#9
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Location: Pasadena, Md, USA
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Originally posted by ROOSTER93V8
considering hes got a speed density car its the only choice unless he wants to run a cyclone computer.
Theres nothign wrong with a FMU, its a fuel pressure regulator
considering hes got a speed density car its the only choice unless he wants to run a cyclone computer.
Theres nothign wrong with a FMU, its a fuel pressure regulator
07-13-2004, 09:11 AM
#10
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Location: Annapolis Md. USA
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FMU's are ok. They are not great, but do save you the hassle of getting a custom tune... Most of the time it will take several tunes to get it right.. An FMU can keep you away from the headaches of that if running manual retard. Running 100+ pressures is kind of a risk also.. You need to make sure the fuel pump can handle higher pressures if running an FMU and smaller injectors.
07-13-2004, 09:37 AM
#11
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Originally posted by 2MCHPSI
FMU's are ok. They are not great, but do save you the hassle of getting a custom tune... Most of the time it will take several tunes to get it right.. An FMU can keep you away from the headaches of that if running manual retard. Running 100+ pressures is kind of a risk also.. You need to make sure the fuel pump can handle higher pressures if running an FMU and smaller injectors.
FMU's are ok. They are not great, but do save you the hassle of getting a custom tune... Most of the time it will take several tunes to get it right.. An FMU can keep you away from the headaches of that if running manual retard. Running 100+ pressures is kind of a risk also.. You need to make sure the fuel pump can handle higher pressures if running an FMU and smaller injectors.
I still have a chevy manual in my garage --- wonder who owns it? LOL
07-14-2004, 08:34 AM
#13
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Location: Annapolis Md. USA
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Most cars i've delt with don't hit 100psi.. I'd like for some of you FMU guys to actually put a feul pressure gauge on the car before making that assumption with calculations.
..You are the only one assuming here, and you know what that makes you. Mine ran over 100 psi. Never said they all would.. What I meant it is possible to see that kind of pressures. Defend the FMU all you want. It is far from consistant and accurate all of the time.. Most people who spend a ton of money on their setup will actually want to pay a little extra to take that junk off their car for piece of mind.. Nothing wrong with that. Like I said before, FMU's are just ok, nothing special..
I still have a chevy manual in my garage --- wonder who owns it? LOL
Last edited by 2MCHPSI; 07-14-2004 at 08:38 AM.
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