Hks Turbo Info

[B18CXr]

[I]with an upgraded (return) fuel system (not included in the kit). I]


this does not sound good.... FMU suck donkey ass.

do the fuel correct the first time, electronic fuel enrichment is the key.

[Hondatech]

do the fuel correct the first time, electronic fuel enrichment is the key.

Indeed. I'd like to see GReddy's kit for the EP when it comes out. Their trend of using bigger injectors and the piggyback E-manage fuel system in their newer kits is ideal for fuel control on a budget. FMax should also have a decent kit, with their additional injectors and controllers. Fuel pressure manipulation isn't a very viable idea on our cars.

[JoshSI]

Can someone explain to me the problem with our fuel system? And why we need to change ot a returnable? and what is a returnable?



Thanks

[BlasTech]

JoshSI, here's an article that does a good job:

http://www.hondatuningmagazine.com/tech/0209ht_family/

Scroll down to the heading Nitrous Oxide and Forced Induction on that page.

[twill]

From what I understand, many engines (including B-series engines) used to use both a fuel feed and a return line to the fuel rail. When boost was applied, you would increase the amount of fuel being added by increasing the fuel pressure in the rail using a boost dependent fuel pressure regulator. Increased fuel pressure means that more fuel will be squirted out by the injectors. More boost, more fuel.

But now, the fuel system on our cars has the return line integrated into the in-tank fuel pump unit, making it impossible to use a simple fuel pressure regulator to increase fuel pressure in the rail.

Anyone know if additional fuel injectors would be difficult to use? It would seem like a much easier solution to add additional injectors and an additional injector controller (AIC) to provide extra fuel during boost conditions.