SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: SLCKREG on November 12, 2007, 01:47:01 PM
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So I'm ditchin my single tr. and fed ex just brought my new victor jr. Is plumbing for nos something the average Joe could do(direct port) or should I get a pro?
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I think drilling and tapping for the ports is gonna be the hardest part. It should come insructions right .
-beerjet-
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Not hard at all. If you get a carb spacer deal they are very simple
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I was thinkin the drill and tap, direct port type, just curious if any one else here had done one.
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not too bad if you have all the tools...mark the intake plentum w/ a sharpie and lay them out evenly, check for depth @ each nozzle and @ each port start w/ a way smaller drill bit and work your way up, be sure to oil down(w/ cutting oil) the tap alot and just take it easy and slow........i recomend running the black teflon style hoses for nos and fuel instead of the metal lines much easier to run, not as impresive but alot more flexable and durable...(ive done thios before)
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Thanks Chromey. My vic jr has nitrous bosses I assume I would just drill dead center in those. The teflon hoses I'm not sure I've ever seen before, but I liked the words "eaiser" and "durable" :)
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Before you start drilling, check with your machinist to see what it would cost to set the manifold up in his mill to drill & tap the holes. Might not be that expensive and it will ensure that they are all done in line and at the same angle(makes it look a lot nicer :) )
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I did my own fogger with a tight radious bend tool, I practiced on several bends before I bent the real stuff. Not really that hard, you get the hang of it quick. I can't post pics, but I could email you what I did. The drilling was easy, the bending and fitting was the hardest part for me. If you are under 250 HP, a plate may actually be better, but you lose the bling...
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Thanks for the input guys. I was thinkin a 200 shot. With a plate can you do that much, wet"with x-tra fuel" or just nos alone.
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A 250 shot plate is common and fairly cheap. You always need extra fuel with N2O, as it just adds oxygen.
I would suggest if this is your first system and don't care about the bling, just buy a adjustable 250 shot single plate system from NS, NOS, NX, ZX, etc. Jet it small, like 75-100 HP, and start learning the system before you step it up.
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That zex perimiter plate looks good but I assumed is was a dry set up(no x-tra fuel)? I'm thinking about having it hpc coated and if i'm going too drill and tap they reccomend that be done 1st.
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If you are goin to drill and tap your bosses without a mill then find a piece of round stock about 1 inch long that matches the diameter of the bosses on the manifold with a hole in the center (find someone with a lathe or find some scrap somewhere). Use the OD of the round stock against the OD of the boss and center punch though the hole to the boss for the punch mark. This way all the holes will be closer in the center of the manifold boss if you did it by eye.
T.J.
www.tjsperformance.com
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That zex perimiter plate looks good but I assumed is was a dry set up(no x-tra fuel)? I'm thinking about having it hpc coated and if i'm going too drill and tap they reccomend that be done 1st.
Running any NOS without an extra fuel coming from somewhere, will do at least one thing, melt the pistons. It may also melt the heads, plugs, and blow the head gaskets. Either way, it is a great way to create extra junk for you to throw away.
Dry setups are ONLY used on fuel injected engines where the computer and injectors are sized and calibrated for the triggered NOS shot. The extra fuel will come from the increased duration of the injectors, and will be matched to the NO2 flow. If you aren't running a No2 capable computer with an EFI setup - dry systems are not for you.
You need a wet system, and the plate should take care of itself - IE, when the N2O is on, the fuel sel should also be on mixing fuel in with the No2.
N2O is just that - Two molecules of Nitrogen, 1 molecule of Oxygen. No Fuel there, just the capability to burn it.