TOO MUCH BOOST? (On my D16Z6 with IHI RHB5)
06-17-2003, 02:02 PM
#21
0.5 BAR
Thread Starter
Join Date: Mar 2003
Posts: 116
Re:TOO MUCH BOOST? (On my D16Z6 with IHI RHB5)
Ok,
thanks for all the info...
What do you suggest I should be running with the setup that I've mentioned above... (stock fuel pump, FMU, colder plugs, stock pistons, rods)?
thanks for all the info...
What do you suggest I should be running with the setup that I've mentioned above... (stock fuel pump, FMU, colder plugs, stock pistons, rods)?
06-17-2003, 02:10 PM
#22
1.5 BAR
Join Date: Feb 2003
Posts: 702
Re:TOO MUCH BOOST? (On my D16Z6 with IHI RHB5)
I would try to keep fuel pressure below 80psi.. That should be around 8psi boost with that 10:1 fmu. And I would upgrade the fuel pump.. Thats just for saftey. Once you go to bigger injectors and an uberchip I say 10-11 should be no problem. I know a few guys locally that run 12 daily and for a while the one was at 16.. He turned it down though.
I know you had it higher before but running more than 80psi fuel pressure is asking for problems.
I know you had it higher before but running more than 80psi fuel pressure is asking for problems.
06-17-2003, 02:28 PM
#24
1.5 BAR
Join Date: Feb 2003
Posts: 702
Re:TOO MUCH BOOST? (On my D16Z6 with IHI RHB5)
One made for high pressure. Either the hi pressure 255lb walboro or one of the inlines designed for high pressure. Most of those are only made for 60-70 psi though. Really if you wanna run high boost I would look into getting a chip and injectors. Joseph can probably hook you up for about $200 Then you can keep the stock fuel pump.
06-17-2003, 02:38 PM
#25
0.5 BAR
Thread Starter
Join Date: Mar 2003
Posts: 116
Re:TOO MUCH BOOST? (On my D16Z6 with IHI RHB5)
$200 for the chip and the 450cc injectors?
So if I get the 450cc injectors, and the "chip" (a modified ECU chip, I assume), I won't need to buy an AFC to control the bigger injectors?
Does the chip have a modified fuel map?
Different fuel ratios at different REVs?
How do you change the chip?
Do you need any special tools? (links ?)
So if I get the 450cc injectors, and the "chip" (a modified ECU chip, I assume), I won't need to buy an AFC to control the bigger injectors?
Does the chip have a modified fuel map?
Different fuel ratios at different REVs?
How do you change the chip?
Do you need any special tools? (links ?)
06-17-2003, 02:45 PM
#26
1.5 BAR
Join Date: Feb 2003
Posts: 702
Re:TOO MUCH BOOST? (On my D16Z6 with IHI RHB5)
yep $200 for a set of injectors and the chip.
Look in the engine management section, Joseph is the mod there. The chip works with your stock ecu, you solder a socket in so it can be removed for retuning. he can do that if you can't. The chip works with boost and he can remap your fuel and ignition tables. Normally he puts in .5 degree timing retard per psi of boost. it has a launch control as well as vtec point. Drop him a line to find out about total cost including soldering the ecu. If you pay shipping both ways he will probably to it all for $200.
Look in the engine management section, Joseph is the mod there. The chip works with your stock ecu, you solder a socket in so it can be removed for retuning. he can do that if you can't. The chip works with boost and he can remap your fuel and ignition tables. Normally he puts in .5 degree timing retard per psi of boost. it has a launch control as well as vtec point. Drop him a line to find out about total cost including soldering the ecu. If you pay shipping both ways he will probably to it all for $200.
Makes sense to me... 
06-17-2003, 05:02 PM
#29
1.5 BAR
Join Date: Feb 2003
Posts: 763
Re:TOO MUCH BOOST? (On my D16Z6 with IHI RHB5)
first of all your car is never going to detonate...so dont be looking for it. This is caused by an excess amount of fuel and im SURE you are running lean, very dangerous. You need bigger injectors and a VAFC or hondata, I didnt read the post so if you already have one of the two sorry. Anywho, the DSM injectors are good but now rookie friendly. I would just suggest doing the smart thing and everybody in here is going to hate me for saying this, but dont be ------- cheap, go out and buy some nice RC 310 or bigger injectors and save yourself the grief and time, after all it is your engine.
