Highest Boost on FMU

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Jul 21, 2007 | 04:03 AM

94accordh22or

Thread Starter

0.0 BAR

Joined: Jul 2007

Posts: 3

Highest Boost on FMU

Just wanted to see who has the highest boost on a FMU and what brand u are running just 4 fun?

thanks

Paul

Jul 21, 2007 | 04:10 AM

bigdaddyvtec

3.0 BAR

Joined: Mar 2006

Posts: 5,631

Re: Highest Boost on FMU

Quote:

Originally Posted by 94accordh22or

Just wanted to see who has the highest boost on a FMU and what brand u are running just 4 fun?

thanks

Paul

24" vac

Jul 21, 2007 | 04:18 AM

94accordh22or

Thread Starter

0.0 BAR

Joined: Jul 2007

Posts: 3

Re: Highest Boost on FMU

vac? what was your setup ?

thanks 4 reply

Jul 21, 2007 | 08:22 AM

E-b0la

3.0 BAR

Joined: May 2006

Posts: 1,967

Re: Highest Boost on FMU

Ditch that ---- and get real fuel management. For the record I wouldn't go above 5 psi. Your fuel pressures will start to go through the roof after that, and you could get an injector failure

Jul 21, 2007 | 08:24 AM

sikcrx89

3.0 BAR

Joined: Apr 2006

Posts: 3,015

Re: Highest Boost on FMU

Quote:

Originally Posted by 94accordh22or

vac? what was your setup ?

thanks 4 reply

noone here runs an FMU its against our religion not to metion its stupid.. if some do run one they dont say they do

Jul 21, 2007 | 10:14 AM

fubar

0.5 BAR

Joined: Jan 2006

Posts: 147

Re: Highest Boost on FMU

I'm pretty sure some of us ran an fmu before we had real fuel managment! Anyways, 5psi, i wouldn't push it any higher or your're asking for trouble!

Jul 21, 2007 | 09:03 PM

hard2obtain

1.0 BAR

Joined: Jan 2006

Posts: 525

Re: Highest Boost on FMU

7 to 8 psi max, more than that are under your own risk

Jul 21, 2007 | 11:02 PM

stillnoturbo

3.0 BAR

Joined: Feb 2004

Posts: 7,783

Re: Highest Boost on FMU

MY Motec standalone came with a 8:1 fmu and said it was good up to 2 bar.

Jul 21, 2007 | 11:50 PM

boosted_b16

1.5 BAR

Joined: Nov 2004

Posts: 820

Re: Highest Boost on FMU

7 psi all day long on an fmu, as long as you get a high pressure fuel pump, and retard base timing like 3-4* but its sensless, you could have a chipped ecu for the same cost...

Jul 22, 2007 | 01:42 AM

#10

hard2obtain

1.0 BAR

Joined: Jan 2006

Posts: 525

Re: Highest Boost on FMU

Quote:

Originally Posted by boosted_b16

7 psi all day long on an fmu, as long as you get a high pressure fuel pump, and retard base timing like 3-4* but its sensless, you could have a chipped ecu for the same cost...

Yes, also remember to use some missing link or check valves. You can use fmu no problem, but your next choice must be a chipped ecu and some 450cc, can be cheaper than your FMU and the best fuel management.

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