Fmu , what type ...... - Team-2G Mitsubishi Forum

Eclipse5150 · 11-17-2005, 08:52 PM

ok so i was looking at FMU today, and seen alot of diffrent kinds. my question would be what FMU do i need 8:1, 10:1, 12:1 , ect. ???? I am running a 255 walbro, and a AFC2, i plan to go with a set of 720 injectors, and ditch the AFC2 and replace it with a DSM link, can someone explain what type of FMU i would need and why. My Horsepower goal is 400 + , so hopefully that will help. I am only running a 16g , but plan to drop in a 57 trim. well let me know guys/girls. Thanks.

Eclipse5150 · 11-17-2005, 11:56 PM

anyone ?????

hunntyr · 11-18-2005, 12:40 PM

Quote:

Originally Posted by Eclipse5150

ok so i was looking at FMU today, and seen alot of diffrent kinds. my question would be what FMU do i need 8:1, 10:1, 12:1 , ect. ???? I am running a 255 walbro, and a AFC2, i plan to go with a set of 720 injectors, and ditch the AFC2 and replace it with a DSM link, can someone explain what type of FMU i would need and why. My Horsepower goal is 400 + , so hopefully that will help. I am only running a 16g , but plan to drop in a 57 trim. well let me know guys/girls. Thanks.

Is this for a 420A or 4G63??

whathits14 · 11-18-2005, 09:27 PM

Do you mean fuel pressure regulator? We usually opt for an adjustable one so we can get that 255 flowing the right amount without flooding the motor with too much fuel. Look for an aeromotive FPR, top notch quality. We dont use the FMUs because then our fuel curve is always linear which we do not want depending on the situation

CarWhore · 11-18-2005, 09:39 PM

You need a 12:1 with stock injectors on a 420a... go to Vortech's website and you can figure it out on there based on your injectors but stock injectors on 420a = 12:1

Eclipse5150 · 11-20-2005, 12:07 AM

the FMU would be for a 95 eclipse GST (4g63T) 5spd. , i need a Fuel pressure regulator/FMU , becuase my fuel pump (walbro 255) wont be working 100% , and i just want one so when i go take my car to the shop, they will be able to tune it alot better. So are you saying i cannot use a FMU ? I was looking at a Vortech, but since i am not a 420a i should use a FPR instead of a FMU ? And if you use a FMU what type should i get, if you have you have a AFC2 and a walbro 255 fuel pump ? i want to build this car for 400 + hp, i eventually i want to run 680-720 injectors, i know this will be pushing my AFC2 . I feel like when this happens, hopefully, get myself a DSMLINK . This would be great, but its in the works. Well i hope this helps you , so i hope this helps you answer my question. thanks. - chris

AWDspyder · 11-20-2005, 03:46 AM

Who the hell siad it wont be working 100% the pump will be fine but you can't maximize your tune. The FMU is USELESS for our cars. Get a AFPR set the psi to 38psi and you will be fine. You have no use for a FMU you need a 1:1 AFPR. Your car knows already there will be boost so it already works with it.

AFPR will help big time.

Eclipse5150 · 11-20-2005, 11:27 PM

point noted thanks AWD

11-17-2005, 08:52 PM	#1
Eclipse5150 Lambo Hunter Join Date: Feb 2005 Location: CA Posts: 1,427	Fmu , what type ...... ok so i was looking at FMU today, and seen alot of diffrent kinds. my question would be what FMU do i need 8:1, 10:1, 12:1 , ect. ???? I am running a 255 walbro, and a AFC2, i plan to go with a set of 720 injectors, and ditch the AFC2 and replace it with a DSM link, can someone explain what type of FMU i would need and why. My Horsepower goal is 400 + , so hopefully that will help. I am only running a 16g , but plan to drop in a 57 trim. well let me know guys/girls. Thanks. __________________ * 95 Eclipse GST -6 bolt block/head *

11-17-2005, 11:56 PM	#2
Eclipse5150 Lambo Hunter Join Date: Feb 2005 Location: CA Posts: 1,427	anyone ????? __________________ * 95 Eclipse GST -6 bolt block/head *

11-18-2005, 09:27 PM	#4
whathits14 Honda Eater Join Date: Jan 2005 Location: Redwood City, Ca Posts: 587	Do you mean fuel pressure regulator? We usually opt for an adjustable one so we can get that 255 flowing the right amount without flooding the motor with too much fuel. Look for an aeromotive FPR, top notch quality. We dont use the FMUs because then our fuel curve is always linear which we do not want depending on the situation __________________ Before you knew what hit you... 6 Bolt, big rods, 2g ex mani, 1g intake/throttle body Walbor 190, act 2100, HRC SM Intercooler, 1g bov, full piping, turboback 3" EVO III 16g DSMlink

11-18-2005, 09:39 PM	#5
CarWhore Lambo Hunter Join Date: Feb 2005 Location: Orlando Florida Posts: 1,629	You need a 12:1 with stock injectors on a 420a... go to Vortech's website and you can figure it out on there based on your injectors but stock injectors on 420a = 12:1 __________________

11-20-2005, 12:07 AM	#6
Eclipse5150 Lambo Hunter Join Date: Feb 2005 Location: CA Posts: 1,427	the FMU would be for a 95 eclipse GST (4g63T) 5spd. , i need a Fuel pressure regulator/FMU , becuase my fuel pump (walbro 255) wont be working 100% , and i just want one so when i go take my car to the shop, they will be able to tune it alot better. So are you saying i cannot use a FMU ? I was looking at a Vortech, but since i am not a 420a i should use a FPR instead of a FMU ? And if you use a FMU what type should i get, if you have you have a AFC2 and a walbro 255 fuel pump ? i want to build this car for 400 + hp, i eventually i want to run 680-720 injectors, i know this will be pushing my AFC2 . I feel like when this happens, hopefully, get myself a DSMLINK . This would be great, but its in the works. Well i hope this helps you , so i hope this helps you answer my question. thanks. - chris __________________ * 95 Eclipse GST -6 bolt block/head *

11-20-2005, 03:46 AM	#7
AWDspyder Post-Fiend Join Date: Jan 2005 Location: Lil' Rhody Posts: 2,453	Who the hell siad it wont be working 100% the pump will be fine but you can't maximize your tune. The FMU is USELESS for our cars. Get a AFPR set the psi to 38psi and you will be fine. You have no use for a FMU you need a 1:1 AFPR. Your car knows already there will be boost so it already works with it. AFPR will help big time. __________________ 1991 Talon AWD....Don't be scurred "There is only one holiday that means anything and you are to make the holy pilgrimmage to Norwalk for it every year." - Driggs

11-20-2005, 11:27 PM	#8
Eclipse5150 Lambo Hunter Join Date: Feb 2005 Location: CA Posts: 1,427	point noted thanks AWD __________________ * 95 Eclipse GST -6 bolt block/head *

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Type S fluttering...	eclipse4eva	Performance Engine/Bolt-ons	7	07-28-2006 11:08 PM
WTB: Greddy Type S BOV	2fast4u	Want To Buy	1	04-12-2006 09:07 PM
WTB- new or used Greddy type S bov	2fast4u	Want To Buy	0	03-15-2006 11:25 PM
Greddy Type-S	Apeximprt2nr	Turbocharger and Nitrous	4	02-28-2006 06:47 PM
Greddy Type s help	foofighter	Turbocharger and Nitrous	2	07-20-2005 12:30 PM