LS1Formula98

iTrader: (2)

Well, as some of you may know, I was asking questions earlier in the week about spraying a 150 shot and if it was safe.

https://ls1tech.com/threads/showflat...31&fpart=1

Well, this was my first dyno with spray, so I thought I would start with a 100 shot and observe my fuel to air ratio. The air fuel looked ok, and I got 411rwhp/ 497 rwtq. I then proceeded to change jets and bump up to a 150 shot. The 150 shot run seemed ok, but my results were disappointing 414rwhp/ 498rwtq. How did I only pick up 3 hp? My buddy logged the run on his efi live software, but he hasnt sent me the files yet. Below is a photo of my graph? My car is an A4 andd the guy told me it is hard to dyno A4's as opposed to M6. Any feedback is greatly appreciated.

NickMapleT/A

Well, with the NX wet kit, you should see pretty close to the advertised results. Maybe your bottle pressure dropped off a bit since you sprayed it once prior. Bottle pressure makes a BIG difference. I went from 117mph trap to 122mph trap by heating my bottle.

All in all, I would say your numbers look pretty good for bolt ons and N2O.

LS1Formula98

iTrader: (2)

Sorry, I should have specified a little more. This is a NX Wet kit. The bottle pressure was right around 900lbs. before my 2nd run was made.

NickMapleT/A

Bump it up to 1100-1300. You won't be dissapointed.

4thGENRETARD

Dito.
BTW do you remove HPP3 powertune to spray. If you don't do you have dyno A/F ratios at WOT.

minivette

I logged the car and he was getting some mad KR. Up to 4 degrees. Also on the second run when the car hit max KR, the timing actually went negative for a split second (-3.x). Weird.

LS1Formula98

iTrader: (2)

Yup what he said. BTW: I am having trouble looking at the files you sent me, Wes.

minivette

operator error.

minivette

Those are EFILive V6 files. You should be able to dowload the program here.

http://www.efilive.com/downloads/EFI...SetupNoDoc.exe

Let me know if that doesn't work.

LS1Formula98

iTrader: (2)

I already downloaded that, but when i tried to open the program it gives me an error. I will re-download and install when I get home.

Ed Blown Vert

iTrader: (2)

You are running hella rich.
What jets you running 62/33?

Brains

iTrader: (7)

Turn the bottle on next time Seriously, if it's jetted 150HP, the nitrous isn't getting to the motor.. Check over your install completely... There's no way the two pulls would have identical curves with the addition of more nitrous..

LS1Formula98

iTrader: (2)

Yes. I think I am gonna try around 1100lbs of pressure next time though.

LS1Formula98

iTrader: (2)

You mean I have to turn the bottle on?

I know my install is good, I mean otherwise I wouldnt have gotten the good run on my 100 shot right? I think I am gonna up the bottle pressure before I run next time.

LS1Formula98

iTrader: (2)

Man, I feel stupid! Ok, I think I figured out my problem. I think I ran out of juice halfway through the run. I am thinking this, because I went to open my bottle this morning, and it was at 600lbs (I live in Tx. so its not cold here). I though hrmm, kinda low, but I will go ahaead and turn my bottle warmer on and see if I can raise the pressure. Well, low and behold, the pressure wont go over 800 lbs, I left it on for like 20 minutes with the car running and wouldn't budge over 800lbs. I am thinking the bottle is pretty much empty. Any thoughts? I am at work, so I can't really take the bottle off and drain the excess out here. How funny is that, thats just my luck ? I mean, my bottle ran out in the middle of my 2nd run (The bottle was filled nearly a month ago and I have sprayed before I did my dybo runs) I didnt even think about it. Maybe that explains the running rich, considering I was spraying just fuel?