2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Old 12-26-01, 02:39 PM
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Nos?

I'm wondering how much NOS can you use in an 87 rx-7 with 160 miles. I was told mey engine was rebuilt by one of the previous owners but I'm still not sure but if I have a good compression ratio how much NOS will suit my car best.
Old 12-26-01, 03:16 PM
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instead of everyone answering this question, it would be nice if you just did a search because we just answered this question.
Old 12-26-01, 05:27 PM
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Originally posted by Yelow RX-7
instead of everyone answering this question, it would be nice if you just did a search because we just answered this question.



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Old 12-26-01, 06:26 PM
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sorry. but really, intead of everyone wasting their time answering it again, he can look for the one we just answered. i dont mean to be mean.
Old 12-26-01, 11:34 PM
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Re: Nos?

Originally posted by fatal2169
I'm wondering how much NOS can you use in an 87 rx-7 with 160 miles. I was told mey engine was rebuilt by one of the previous owners but I'm still not sure but if I have a good compression ratio how much NOS will suit my car best.
I will answer this:

If you are not positive that your engine is in good shape then your car can handle NONE, ZERO. You need to get a compression test then go from there. Get your car as close to 100% as possible, then go for a 50 wet shot.
Old 12-26-01, 11:36 PM
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if you have good compression, on a turbo II w/ a 50 shot, you could easily see up to 60 RWHP. Just make sure your fuel is up to par. being Fuel pump first and the bigger injectors. It's a great upgrade for the dollar. Do your baisc mods first, and you'll see really good results. Good luck ....
Old 12-27-01, 10:19 AM
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Re: Re: Nos?

Originally posted by Ryde _Or_Die
then go for a 50 wet shot.
why not direct port?
Old 12-27-01, 10:27 AM
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Wet shot seems like a safer way not to lean out. With a 50 wet shot or so you won't have to upgrade the injectors or fuel pump. Contact fc3s.org on here.
Old 12-27-01, 10:29 AM
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ohhh ok. so whats the difference between wet and dry?
Old 12-27-01, 10:42 AM
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wet dumps fuel as well as NOS. Dry only dumps NOS
Old 12-27-01, 10:45 AM
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oh ok. thanks.
Old 12-27-01, 10:53 AM
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Right, a wet shot of N2O will add both Nitrous Oxide and more fuel into the engine, so it makes it safer for the engine. A dry shot will only send Nitrous, and is a little bit tougher to tune and a little more dangerous if not tuned correctly.


Jeff
Old 12-27-01, 01:13 PM
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www.JimWolfTechnologies.com sells aftermarket computers that incorporate two modes: one being for spirited driving, the other being for the same but with NOS. It's set for a dry system and the injectors compensate the extra fuel needed. It's really nice and with the flip of a switch you can turn everything on. I wish someone made something like that for our cars.

Direct port would B a bit hard to tune even with an AFC you would need more flexibility, so something such as a wolf 3D or Haltech would have to be used.
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