SOHC ZC/VTEC and NOS

[mrchris1979]

So this is my project that I'm currently doing for my 88 CRX SI. With the SOHC ZC block and the D16Y8 head I did my research and the compression will be about 11.5 to 12. Right now the vtec head is not on the block. The SOHC ZC head/block compression is about 10.0 which is running on stock fuel injectors and fuel pump with an adjustable regulator set at 55 PSI. My a/f gauge says the car is running perfect. Once I put the vtec head on, I probably have to upgrade to higher flowing injectors. I don't want the pain of replacing the stock fuel pump so what is the highest flowing injectors I can use to accomidate the higher compression and an occasional 50 shot of wet NOS (not sure what brand yet) using the stock fuel pump ? (if it is possible)

[whtteg]

OK first this:


Ok now that that is cleared up you need a bigger fuel pump b/c when you increase the duty cycle of the injectors they will need more fuel. The stock fuel pump is not going to be able to deliver the extra fuel you are going to want. And unless you have your A/F gauge hooked to a wide band it is not telling you anything helpful.

[eckoman_pdx]

Originally Posted by whtteg

OK first this:


Ok now that that is cleared up you need a bigger fuel pump b/c when you increase the duty cycle of the injectors they will need more fuel. The stock fuel pump is not going to be able to deliver the extra fuel you are going to want. And unless you have your A/F gauge hooked to a wide band it is not telling you anything helpful.

LOL...yes, "NOS" is a brand....So mrchris1979, by saying you want "NOS," but you are not sure of the brand, you are making a confused statement, since "NOS" is a brand. "NOS" stands for "Nitrious Oxide Systems" and they are a division of Holly Performance Products. The Correct term, as wtteg stated, is Nitrious (or Nitrious Oxide). Now, as for various Brands for Nitrious Oxide, there is NOS, ZEX, Venom, NX Express...to name a few...mrchris1979, here's a tip...if you haven't figured it out yet, you'll get torn up in here for refering to Nitrious Oxide as "NOS," which as we stated above, is a brand...