nitrous syclone?

[HotRudyRod]

What would happen with the aquamist? Is this the same as alkiunjection?
Thanks.

no because "alkiunjection" isn't a word

Very funny, yeah sorry bout that its just that pc i was at had so many virus that i was having a hard time copin with the pop ups to watch my spellin.
Now, can you tell me if they're the same or what would happen and why, when usin aqua mist and nitrous?

 

[Methuselah]

It seems to me that alky injection with dry nitrous injection is a very natural combo. The nitrous is an oxygen adder that would be matched with additional fuel in the form of straight methanol.

Although one would need to tune the two systems pressures (and jets for methanol) so that the proportions were near stoichiometric for methanol, seems like it would be independent of your chip tune. Of course, the AFR would be hard to interpret for those of us who dont remember their chemistry.

You would be relying on the alky injection for fuel rather than cooling and on the nitrous for oxygen and cooling. This should hold true for propane as well, where propane is the fuel used to balance the nitrous injection.

 

[Methuselah]

Very funny, yeah sorry bout that its just that pc i was at had so many virus that i was having a hard time copin with the pop ups to watch my spellin.
Now, can you tell me if they're the same or what would happen and why, when usin aqua mist and nitrous?

The concerns, I believe, are that the nitrous injection would literally freeze the water from the alky injection out of the air stream. There is the additional issue with nitrous of where to inject to ensure an even distribution in the air stream so that some cylinders dont run lean or rich with the additional fuel injected to match the oxygen added by nitrous.

 

[spooldup]

when i had this setup i just ran meth and it never froze. The ic was so damn cold it was ridiculous. I had other issues so i never had a chance to fine tune it. The new ty setup just has a larger turbo so screw the nos.

 

[tyndago]

Nitrous is cool..... huh huh.... I said ...cool

I was contemplating it on my stock turbo - weird setup... just because I have a few single foggers laying around.

If - thats a big IF - I ever get the truck running - I will probably be sporting a single fogger with a conservative shot at first.

That is - if it ever gets running.

 

[ghettosled]

u conservative?? i doubt it.. getting it running at some point? atleast you are honest there..

 

[tyndago]

u conservative?? i doubt it.. getting it running at some point? atleast you are honest there..

Its not like I cant get cars running.... its just I cant get "MY" cars running...

Twice I have had the damn GT-R together recently... and my own sits...

One of the two exhaust manifolds are on..... well the other is on - but its such a pain to tighten up.

For me - being broke - only so far you can go on a stock turbo.... with nitrous - you can go so much further..... I cant be bothered changing the stock injectors.

With rods / pistons , and a general non caring about most things mechanical - nitrous is good.

It will however bite you if you dont give it enough fuel -enough octane- retard the timing enough - and a cool enough plug.

 

[SyTyJedi]

u conservative?? i doubt it.. getting it running at some point? atleast you are honest there..

Its not like I cant get cars running.... its just I cant get "MY" cars running...

Twice I have had the damn GT-R together recently... and my own sits...

One of the two exhaust manifolds are on..... well the other is on - but its such a pain to tighten up.

For me - being broke - only so far you can go on a stock turbo.... with nitrous - you can go so much further..... I cant be bothered changing the stock injectors.

With rods / pistons , and a general non caring about most things mechanical - nitrous is good.

It will however bite you if you dont give it enough fuel -enough octane- retard the timing enough - and a cool enough plug.

Less posting, More getting your truck running.

 

[mhoover]

mike callahan has sprayed the hell out of one of his trucks!!! he might be someone that can give sum info on doing it, not that u other guys ndnt know what ur talking about! :-? hes on the board every so often.

MATT

 

[ghettosled]

i remember hearing about this back in the mid 90s. The sleeper street racing syclone from TN that never went to the track, but would smoke everything on the street for money.. hehehe

Between Mike, myself and sean I think we have owned non operational sytys the longest.

 

[tyndago]

My Ty was running last - back in 1999..... before then it was mostly running 1992 - 1999....

Two times - it actually went 11's in the quarter...

One time I was spraying about a 50 wet shot . Picked up 5 mph in the 1/8th - 95 mph on an 11.85 @ 113 pass. It was falling over on the top - not enough injector - 40 lb - not enough fuel pump - single 255.

 

[slvrchr203]

has anyone thought of running an NX N-tercooler through and air to air intercooler?

 

[QUIKSUV]

N-tercooler is crap IMO. Tried it and you will get little cooling for the $$. Only get 1.5 quarter mile passes with a 10lb bottle. With nitrous at $3+ / lb or so, it is not very cost effective. May as well put into the motor.

I then switched to a dry system. The plan was to run a little less boost (20psi from 23psi) and give it a little shot to lower the intake temps and give it a boost. 30 hp shot was nothing. Finally ended up with an 80 shot which seems pretty good. This is my own custom system with my own chip. I switch the water temp very cold with the nitrous on and use the water temp enrichment to tune the fuel. Don't try this without Datamaster and a WB O2. Boost control is fine and rock steady with or without nitrous. I have not run this at the track yet (spending more time with my Nova at the track) but I am sure I can beat my 12.63 (20 psi with n-tercooler) without much problem.

I have forged pistons and a PTE 60 system, full 3" exhaust, cam, A2A intercooler, blah, blah, blah.

Bottom line. I am not afraid to run nitrous with forged pistons and confidence in MY tuning. I definitely would not run nitrous on the stock pistons. As for just blindly dropping on a NOS kit, probably asking for a costly rebuild.

One guys experience. Your results may be different.

 

[turbodig]

no!!
dry systems function by bleeding off a very small portion of the n2o hit thru a regulator, this bumps up the fuel pressure - much like an fmu on a common centrifugal supercharger kit does.
this provides the extra fuel needed, thru the oem injectors, port to port, no distribution troubles.
but, bear in mind, fuel pump output drops with pressure increses - so, killer pump is mandatory.

Just wanted to provide some info regarding this...

On a stock injector truck, 5 psi of fuel pressure will enrich things by about
0.1 AFR . 10 psi will get you 0.2 AFR, maybe a bit more. This was checked
on a number of different trucks with different Wide-Band o2s, and they
all end up being about the same.

A 30-50 shot of spray will need a 1.0-2.0 AFR bump or more, which means
you'd need a lot of fuel pressure (10x the above) to get things to where they need to be. In practical application, you can't get stock injectors
to gain more than 0.4-0.5 AFR via fuel pressure changes... you run into
excessively high FPs that dead-head the pump.

Personally, I think spraying a truck with stock rods/pistons is asking
for trouble. In the 10 years I've been dealing with Sy/Tys, I have yet
to hear of a successful use of spray over a long period of time. (ie >
than 2-3 races)

I'm of the mind that the only way to do it successfully is to have the ECM
know about the % of NOS being sprayed, and adjust the fuel accordingly.
Any knock retard that showed up could shut off the solenoid, and keep
the motor alive. The ECM could even run the NOS, making it progressive
throughout the run.

Just my thoughts,

Dig
'91 Sy - 11.83 @ 114 |20g/converter.