Prototype Arrington 90mm nitrous throttlebody

Well it came in the mail today and I cant wait to try it out on the car. I need to make a gasket since this prototype doesnt have the o-ring. Ill have results soon.

 

Now that is way cool.

Popping the corn on this one...

 

Ah testing, more good reasons to rotate the N2O tank stock. Wouldn't want to have a bad bottle or two on the shelf, or in the trunk. Looking forward to your thoughts and write up about this plate set-up.

 

Tested the throttle body today on the same dynojet I always use. I knew the unit was a solid piece but the results absolutely stunned me. I did 4 pulls in a row with no cool down to speak of. I forgot my memory stick but I do have the printout. Ill show the pulls separately after I get the winpep files tomorrow.

First pull (runfile 37) is my baseline motor pull.
Second pull (38) is using the same fogger Ive always used in the CAI on a 100 shot (46N 24F)
Third pull (39) is using the Arrington Nitrous 90mm throttle body with the exact same jets. (46N 24F)
Forth pull (40) is using the Arrington Nitrous 90mm throttle body with my track jets (64N 24F)

I had a gain of 19 hp and 6 tq just from the spraying with the Arrington Nitrous TB rather than my fogger. No way I predicted this. Not sure of the reasoning, the AFR's were pretty similar but hard to see on the printout. I'll show it better when I get the files tomorrow.

 

Dan,

I can not remember, but did you run a 90mm TB before this new one with the built in fogger?

In any event, nice jump in power.

 

Ive had the 90mm Arrington for awhile. 6 months maybe, forget when I bought it.

Thanks, didnt expect any gains, just thought it was a nice cleaner way to apply nitrous. Gains are a nice perk though

 

That's what I thought, just couldn't beat the old age factor. haha

I am with you, much cleaner way to apply the juice. Everything else is icing on the cake.

 

Looks like Ive had it since May.

http://www.srtconnection.com/forums/showthread.php?t=6599

Its a nice mod on the 426 compared to no gains with it on the 6.1.

 

Most awsome Mr. Dan!!.

 

Very nice Dan.

 

Me likey

 

Is it all juice or does it spray the fuel to???

 

It is setup for a wet shot, sprays both fuel and nitrous. You can see the two fittings on the side and the separate openings in the pictures as well.

 

Cool. thats much safer on the engine correct?

 

How is the distribution across the cylinders with that design?

Throwing a calibrated ratio of Fuel and Spray is MUCH safer than a dry shot.

With dry shots you typically have to tune heavily for them as you are expecting the injector to compensate for the increase of spray.

 

So this way you know you will have fuel in the cylinder with the spray no matter what. were a dry shot you could have a problem and wind up with only spray in the cylinder?

 

Pretty much. The juice provides more 02 so you burn more fuel so you need more fuel. Our computers provide a fixed, predetermined amount of fuel at WOT. It would be possible to tune for that extra fuel if you fire the juice EVERY time you go into WOT mode. Otherwise you'd be running WAY too rich without the juice. So we have to use a wet shot to throw in the extra fuel with the juice. If you just spray without extra fuel you run extremely lean, which will produce a decent amount of additional power for a very short period of time... :blowup:

A couple of years ago there was some guy with a bee who didn't know and ran a dry shot (75?) for a few passes at the track. Some very nice times. He said the car seemed to still be running ok but we didn't hear from him after that.

 

Ya, our cars do not adjust like a car with a mass air flow sensor would. We have to mix the fuel in with it our like Quicks said, have a tune for WOT nitrous runs which isnt practical with the burnouts etc...

Here is a picture of the two back to back pulls comparing the nozzle vs the throttle body. Same exact jets and 7 minutes apart, the time it took me to swap everything out.

 

Dan If I already have the TB can I send it back and get them too add this to it? Or do I need to order an other one already made?