FMU + Stock Fuel Pump?
04-15-2008, 10:23 PM
#11
3.0 BAR
Join Date: Oct 2005
Posts: 9,282
Re: FMU + Stock Fuel Pump?
Originally Posted by cornfuzed
even with arp studs?
if not 7-8psi what about 5-6psi?
im only hoping for about 140-160hp (stock is 103)
my origonal goal was 200whp but that seems about out of range for the stock engine
my question will the aveo with a small turbo (t3 ,t25,14b somthing of that nature that will spool quick, no need for large cfm as it will be low power,low boost)
and an fmu along with an ebay intercooler and custom piping be reliable
would i need larger injectors for such low boost? if so what kind of injectors do i need to look in to (from what i understand about 170hp (high hopes) requires about 320cc injectors give or take, would some cheap dsm 450's work? would they be overkill? how would i go about either programing or having the ecu programed for the larger injectors and boost
where would i be able to do this? will a standard dyno shoppe be able to dyno tune the stock ecu so handle said mods? will i need some sort of adjustable piggyback?
as for the hardware i have no problems (other than the my welder crapped out 2 weeks ago so i will need to use couplers until i can take it to the muffler shoppe to have piping welded up and i might be buying a log manny and i will need to make an intake manny that is not so restrictive and is not plastic, and i am also hoping to retrofit a larger tb to flow better as with the tiny tb on the stocker even tho it has a 6500rpm redline it runs out of breath at 5500rpm)
if someone could help me trouble shoot these points i would appriciate it i plan on keeping an up to date build thread with pics of the process so (tho hmt will inevitably have members that will so no need for me to give permission to) flame away but if you could keep the flaming to a minimum i would appriciate it
if not 7-8psi what about 5-6psi?
im only hoping for about 140-160hp (stock is 103)
my origonal goal was 200whp but that seems about out of range for the stock engine
my question will the aveo with a small turbo (t3 ,t25,14b somthing of that nature that will spool quick, no need for large cfm as it will be low power,low boost)
and an fmu along with an ebay intercooler and custom piping be reliable
would i need larger injectors for such low boost? if so what kind of injectors do i need to look in to (from what i understand about 170hp (high hopes) requires about 320cc injectors give or take, would some cheap dsm 450's work? would they be overkill? how would i go about either programing or having the ecu programed for the larger injectors and boost
where would i be able to do this? will a standard dyno shoppe be able to dyno tune the stock ecu so handle said mods? will i need some sort of adjustable piggyback?
as for the hardware i have no problems (other than the my welder crapped out 2 weeks ago so i will need to use couplers until i can take it to the muffler shoppe to have piping welded up and i might be buying a log manny and i will need to make an intake manny that is not so restrictive and is not plastic, and i am also hoping to retrofit a larger tb to flow better as with the tiny tb on the stocker even tho it has a 6500rpm redline it runs out of breath at 5500rpm)
if someone could help me trouble shoot these points i would appriciate it i plan on keeping an up to date build thread with pics of the process so (tho hmt will inevitably have members that will so no need for me to give permission to) flame away but if you could keep the flaming to a minimum i would appriciate it
04-15-2008, 10:31 PM
#12
1.0 BAR
Join Date: Oct 2006
Posts: 536
Re: FMU + Stock Fuel Pump?
Originally Posted by buk9tp
pretty sure they dont make arp headstuds for the aveo motor...
i am sure that the aveo dose not use some off that wall head studs that are not used in any other car on the road
make sense?
04-16-2008, 11:22 AM
#13
Guest
Posts: n/a
Re: FMU + Stock Fuel Pump?
Originally Posted by cornfuzed
i never expected to find anything model specific so i will get studs that have the same thread count and pitch
i am sure that the aveo dose not use some off that wall head studs that are not used in any other car on the road
make sense?
i am sure that the aveo dose not use some off that wall head studs that are not used in any other car on the road
make sense?
Kill yourself you worthless idiot.
04-16-2008, 01:01 PM
#14
0.0 BAR
Join Date: May 2005
Posts: 0
Re: FMU + Stock Fuel Pump?
I don't see that happening on the stock fuel pump. At 5 psi of boost, you are going to have a rail pressure of over 95psi. The stock fuel pump won't flow enough at that pressure.
Look at it this way, a walbro 190lph will be maxed out with four 240cc injectors at 95psi.
Those kits come with 255lph HPs for a reason. Cause they can max out at 8psi on a 12:1 FMU which is pushing 120+psi of rail pressure.
04-16-2008, 03:41 PM
#16
1.0 BAR
Join Date: Oct 2006
Posts: 536
Re: FMU + Stock Fuel Pump?
Originally Posted by MADMAX
I don't see that happening on the stock fuel pump. At 5 psi of boost, you are going to have a rail pressure of over 95psi. The stock fuel pump won't flow enough at that pressure.
Look at it this way, a walbro 190lph will be maxed out with four 240cc injectors at 95psi.
Those kits come with 255lph HPs for a reason. Cause they can max out at 8psi on a 12:1 FMU which is pushing 120+psi of rail pressure.
Look at it this way, a walbro 190lph will be maxed out with four 240cc injectors at 95psi.
Those kits come with 255lph HPs for a reason. Cause they can max out at 8psi on a 12:1 FMU which is pushing 120+psi of rail pressure.
04-17-2008, 12:07 AM
#18
1.0 BAR
Join Date: Oct 2006
Posts: 536
Re: FMU + Stock Fuel Pump?
Originally Posted by Cray91
It would be a better place to start than a stock one.
and im good?
yes i know there is that thing called a turbo but already know in general what turbo i am running and im thinking about 2inch piping
i know it's small but the tb is so small that i don't believe that 2inch throught would be any worse than 3inch but still having to go throught a tb of about 1.75-2inches
(plus there is not allot of room under the hood so smaller piping means more room)
and i think i am going to run an ebay 32x6x2 intercooler with 2.25inch inlet and outlet
would it be ignorant to think that a decent dyno shoppe could tune the car to run like a chipped turbo civic (not power wise more like reliability wise but i don't want to add the turbo and do all the work and only gain 10-15hp if i was going to do that i would throw on a cold air intake and put in an exhaust cutout before the cat
one thing what ratio fmu would be needed?
and would stock injectors with the walbro 255 be good or should i also see if dsm 450's will work? (i see them on here for like $50 so their cheap but i don't know if they would need modified or not)
04-17-2008, 12:20 AM
#19
3.0 BAR
Join Date: May 2004
Posts: 5,042
Re: FMU + Stock Fuel Pump?
Originally Posted by cornfuzed
so a wlbro 255, then a decent quality fmu and all i have left to do it the physical work and find someone that can either
04-17-2008, 12:25 AM
#20
0.0 BAR
Join Date: Jan 2008
Posts: 0
Re: FMU + Stock Fuel Pump?
Originally Posted by cornfuzed
one thing what ratio fmu would be needed?
and would stock injectors with the walbro 255 be good or should i also see if dsm 450's will work? (i see them on here for like $50 so their cheap but i don't know if they would need modified or not)
and would stock injectors with the walbro 255 be good or should i also see if dsm 450's will work? (i see them on here for like $50 so their cheap but i don't know if they would need modified or not)
buy my ----.
