How much boost?
Thread Starter
0.5 BAR
Joined: Dec 2002
Posts: 177
How much boost?
Does anyone know what boost level I could run for a safe but powerful daily driver. And what would be the max boost I should run for the track.
Setup:
D16y8 w/ stock internals 55,000miles
T25 turbo internal wastegate no play or wobble
Front mount intercooler 30long x 6high x 2wide
2 1/2 inch piping
Walbro 255lph fuel pump
Denso Iridium Spark Plugs
OBX 10.3MM Spark Plug Wires
MSD SCI ignition
Vortech 12:1 FMU
Turbo XS Boost Controller
Missing Link
Stock Exhaust
Automatic Trans
Autmeter Boost and Air/Fuel Gauges
Stock Injectors, Fuel Rail, Fuel pressure regualtor
open to any suggestions
thanks
Setup:
D16y8 w/ stock internals 55,000miles
T25 turbo internal wastegate no play or wobble
Front mount intercooler 30long x 6high x 2wide
2 1/2 inch piping
Walbro 255lph fuel pump
Denso Iridium Spark Plugs
OBX 10.3MM Spark Plug Wires
MSD SCI ignition
Vortech 12:1 FMU
Turbo XS Boost Controller
Missing Link
Stock Exhaust
Automatic Trans
Autmeter Boost and Air/Fuel Gauges
Stock Injectors, Fuel Rail, Fuel pressure regualtor
open to any suggestions
thanks
Guest
Posts: n/a
Re:How much boost?
Originally Posted by AbaZ
7-8psi should be about right, I would watch your air-fuel gauge to see if you are running lean or not under a heavy load.
Jeff
Jeff
so just cause we say 7-8 doesn't mean your limited to tthat, keep that in mind. i have seen your motor take a 125 shot of nitrous with some si 240's and timing retarded.
anything is possible.
1.0 BAR
Joined: Dec 2002
Posts: 283
Re:How much boost?
you can run up to 10psi with stock internals. The Vortech FMU is the perfect ratio for stock injectors at 6psi. If you want to go the full 10 then you will need to retard timing 8-10 degrees, get a blow-off valve, get some DSM 450cc injectors and call vortech and order the proper recalibration kit for your FMU. They run like $40 shipped from Vortech. 
1.0 BAR
Joined: Dec 2002
Posts: 215
Re:How much boost?
Originally Posted by AbaZ
You simply cannot run that much boost on stock injectors, you will have to upgrade them if you want to make some real power.
Jeff
Jeff
Thread Starter
0.5 BAR
Joined: Dec 2002
Posts: 177
Re:How much boost?
What will the proper recalibration kit do to my FMU? I have a blow off valve, I forgot to mention that. My main goal in the end is be at around 200hp. If I got DSM injectors, would I still have to slow the pulse down if I retarded the time? Does anyone have a 450cc injectors they would like to sell?
Administrator
Joined: Dec 2002
Posts: 13,988
Re:How much boost?
Originally Posted by 4Aaron GE
Originally Posted by AbaZ
I'm going to have to take issue with that. I have a friend who used to have a turboed Corolla, and he was able to run up to 15psi on stock injectors. He probably could have run more boost, but he threw a rod. I don't know how big Honda Injectors are, but the Corolla ones were around 165cc.
How much HP do you think your buddy had on his Turbo Corolla?
Jeff
