question about building a nitrous motor. [Archive]

grimreaper253

11-08-2009, 05:53 PM

im planning on getting mwrs gt35r kit next year hopefully and i was wondering with mwr rods, mahle 9:0:1 compression pistons, mwr rod, main and thrust bearings, and arp head studs, how much should i be able to sray at it? i was going to try 75 through the fogger nozzle, and have a direct port kit with 225 jets. has anyone tried sraying this much yet? thanks for any input.

grimreaper253

11-10-2009, 12:28 PM

has anybody built a nitrous motor out of a 2zz yet?

Gtsjeg04

11-10-2009, 01:12 PM

im planning on getting mwrs gt35r kit next year hopefully and i was wondering with mwr rods, mahle 9:0:1 compression pistons, mwr rod, main and thrust bearings, and arp head studs, how much should i be able to sray at it? i was going to try 75 through the fogger nozzle, and have a direct port kit with 225 jets. has anyone tried sraying this much yet? thanks for any input.

Yeah I spray about 225 on a stock motor

grimreaper253

11-11-2009, 01:04 AM

thanks for the input. what are you using for a direct port kit? i was thinking about getting the edlebrock or zex kit for my second stage. so i should be safe spraying about 300 or a little more at it in two stages with a built motor then.

Gtsjeg04

11-11-2009, 08:15 AM

I have all NOS parts. I spray 125 pre-blower, and 100 direct port wet but I'm thinking of running everything dry and letting the engine management take care of the fuel.

Hows boosted feel about you drilling holes in his pretty little manifold?

Smaay

11-11-2009, 10:02 AM

boosted feel about you drilling holes in his pretty little manifold?

i still would not do that. not without a return fuel system to raise fuel pressure with the increased manifold pressure

Gtsjeg04

11-11-2009, 02:08 PM

i still would not do that. not without a return fuel system to raise fuel pressure with the increased manifold pressure

I just run a secondary fuel map to hold the injectors open longer while the NOOZZZZZZ is powered on.

grimreaper253

11-11-2009, 06:13 PM

thanks for the input. so i should be ok with the returnless stock system or should i switch to a return system before i start spraying large amounts of nitrous at it? ive already got a walbro 255lph in it right now.

Gtsjeg04

11-12-2009, 10:22 AM

thanks for the input. so i should be ok with the returnless stock system or should i switch to a return system before i start spraying large amounts of nitrous at it? ive already got a walbro 255lph in it right now.

As long as this is a non FI system you should be fine, just remember to jet for the stock fuel pressure.