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Question about wet vs. dry.....

Old Nov 14, 2004 | 05:51 AM
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Default Question about wet vs. dry.....

Is it true that with a wet shot the #7 and #8 cylinders will run leaner than the rest?

And with a dry shot the #7 and #8 cylinders will run richer than the rest?


If true, than the dry shot is the obvious best choice as far as reducing the chance of damage goes.

I don't know whether or not to get a 150 dry shot or a TNT 150 wet.
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Old Nov 14, 2004 | 01:34 PM
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I have no solid factual proof of that...although it seems that way. I think with proper tuning and good plug reading you should be able to set up either for a safe condition. Just run a bit richer to cover the leanest cylinders.
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Old Nov 14, 2004 | 10:31 PM
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Originally Posted by Quickin
Is it true that with a wet shot the #7 and #8 cylinders will run leaner than the rest?

And with a dry shot the #7 and #8 cylinders will run richer than the rest?


If true, than the dry shot is the obvious best choice as far as reducing the chance of damage goes.

I don't know whether or not to get a 150 dry shot or a TNT 150 wet.
The reason it runs lean in #7,8 (isn't #5 in there) is because of distrbution problems caused by running a liquid through a manifold that was designed to run dry, also puddling problems and hood removals. Now dry, running richer in 7/8 compared to the rest, I do'nt think so, as fuel is injected directly into each cylinder and all should be the same, unless your saying there is a lean problem with 7/8 even na? A 150 dry is pushing it unless you up size injectors and dyno tune for sure, that's why some guys like the wet kits just bolt on and go, but...
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Old Nov 17, 2004 | 10:55 PM
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Originally Posted by Robert56
Now dry, running richer in 7/8 compared to the rest, I do'nt think so, as fuel is injected directly into each cylinder and all should be the same, unless your saying there is a lean problem with 7/8 even n/a?
No, I'm saying that if you spray a dry shot most of the shot will get sucked into the front 6 cylinders and the back to cylinders will get less of the shot, which will cause a rich condition in those two back cylinders because the PCM is going to spray more fuel into ALL 8 cylinders when the MAF reads the nitrous going through it.

I guess with a wet shot if the fuel/nitrous gets eaten up by the front 6 cylinders it'll leave the back two with its own air and fuel, so I guess it should always be OK.

This is confusing ****, leave it to the tuners I guess.
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Old Nov 17, 2004 | 10:56 PM
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Originally Posted by 383LQ4SS
I have no solid factual proof of that...although it seems that way. I think with proper tuning and good plug reading you should be able to set up either for a safe condition. Just run a bit richer to cover the leanest cylinders.
I e-mailed your guys several times and haven't heard anything yet. I'll try to call this week.
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Old Nov 18, 2004 | 09:02 PM
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Ok, maybe dry, this rich in the back clyinders could happen if n2o is injected too close to maf and doesn't mix well with oxygen? However ,I think this is remote as the n2o should be evenly mixed with oxygen because it is vapor not a heavy liquid. If what your saying is true then NA the engine would pull the oxygen into the front 6 cylinders first and possibly cause a rich condition in back two cylinders. I don't think this is happening because the engineers have tuned the runners to evenly distribuate the air, and for us running dry, the air/n2o mix. Anyone have problems with rear clyinders on dry? I haven't noticed any rich condition on my plugs. Robert
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Old Nov 19, 2004 | 03:32 AM
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Read your plugs after a few N2O runs and you'll get an idea of what is happening.
I shoot up to 200 dry and after a couple of runs, I can tell the 7/8 plugs are running a little richer, but meaningless really.
DP eliminates this problem along with "puddling and backfires" in wet systems.
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Old Nov 19, 2004 | 09:30 PM
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Originally Posted by PREDATOR-Z
Read your plugs after a few N2O runs and you'll get an idea of what is happening.
I shoot up to 200 dry and after a couple of runs, I can tell the 7/8 plugs are running a little richer, but meaningless really.
DP eliminates this problem along with "puddling and backfires" in wet systems.
What kit are you running and where are your nossle(s)?
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Old Nov 19, 2004 | 09:49 PM
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Just get multi-port
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