3400 Nitrous Question - Third Generation Forum

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3400 Nitrous Question
Monday, April 07, 2008 5:52 PM
So as some of you know I have sprayed my car on the dyno and it has knocked really bad. My question is, do I have the nozzle mounted in a bad spot? Im thinking it might not be atmoizing the N2O and fuel well and causing it to knock. Heres where the nozzle is.





3400 SWAP DONE. 187WHP 212TQ (14.4 @96MPH NA) 240WHP 310TQ (N2O)


Re: 3400 Nitrous Question
Monday, April 07, 2008 6:10 PM
Most companies state 6-8" away from the t.b. but certain nozzles have a soft-plume setup,possibly what you have with the Zex,I
personally would move it and see how it works



15.2@89mph 2.171 60ft. 9.830 1/8 R.I.P. "LULU"
Re: 3400 Nitrous Question
Monday, April 07, 2008 6:37 PM
dang..most peopel put it in the intake right near the TB....this way if you want to move it you dont have to plug your TB...id move it 6" back and see fi that works



My car may run 18s, but I can do your taxes in 10 seconds flat.
JBO lube - they would never have enough in stock and we'd never see RodimusPrime again
Re: 3400 Nitrous Question
Monday, April 07, 2008 6:39 PM
Im worried about problems with spraying it thru the MAF sensor... I dont want to damage the sensor...


3400 SWAP DONE. 187WHP 212TQ (14.4 @96MPH NA) 240WHP 310TQ (N2O)

Re: 3400 Nitrous Question
Monday, April 07, 2008 7:10 PM
Then you need to go with a DP setup



15.2@89mph 2.171 60ft. 9.830 1/8 R.I.P. "LULU"
Re: 3400 Nitrous Question
Monday, April 07, 2008 10:59 PM
Nitrous Nate wrote:Im worried about problems with spraying it thru the MAF sensor... I dont want to damage the sensor...


Put it just after the MAF on the TB. There should be just enough distance (~6")









Re: 3400 Nitrous Question
Tuesday, April 08, 2008 6:09 AM
If it were me, I'd make a spacer to put between the TB and UIM and mount the nozzle in that, but moving it closer to the MAF would work as well.

It also would probably help if the nozzle weren't mounted exactly perpendicular to the side of the TB, but that would probably require welding a bung on instead of just drilling the hole. If you can get the tip away from the center pin of the butterfly, it will atomize in the airflow a little better.

The most important thing to think about when it's near the TB is where the tip actually is, so that you get the best spray into the airflow that won't get disrupted by the plate.






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