SamsonXD

Hi all I hope you don't mind me posting I don't have a LS1 car but I love this site. I finally got my 06 300C to work with my NX system, I am running a 100 shot right now, but I am going to 125 or 150 by the end of next week.

I have a question that I hope you all can help me with though, when I had the car dynoed on the Mustand Dyno I made Max power 246.9 @5300 RPM and Max Torque 271.9 at 4400 RPM does this sound low to anyone else? I was thinking it should be higher. With the 100 shot Max power was 313.7 at 5000 RPM and Max Torque was 385.1 @4200 RPM. Does that seem lower then I should have been getting?

Anyways just looking for anything you all could suggest that might help out. Here are some pictures of it installed.

slowtealz28

Yea I'm no Chrysler expert but that does seem really low. Thats a little bit higher than LT1 RWHP, and your car is pretty heavy. I believe there was a guy at atco that ran 12.90's bone stock, so your car should be pretty peppy. How many miles are currently on the car? I would definitely get things checked out, something doesnt seem right. Sorry this prolly isn't any help, but keep us updated

SamsonXD

thanks for the response I have just over 5000 miles on it. My car weighed in at 4000 lbs for the Dyno big beast LOL

SamsonXD

I am going to put my dyno's up if that would help in any decisions,

Thanks for any help you can throw my way.

Nitro Dave's Nitrous Outlet

iTrader: (25)

What was your air fuel and bottle pressure. Your name rings a bell.If I am correct I helped you with the system.YThen there were some traction controll issues.Did you get that worked out?
Dave

SamsonXD

High Dave yep you were the one that I got my stuff from thanks again I am having a blast. We ended up having to use a Zex TPS and a MSD window switch each with their own relay. We worked around the Torque management by tricking the wide open throttle, no issues at all now. My bottle pressure was 1000lbs and the AFR was 12.73 Thanks for any help you could throw my way.

Nitro Dave's Nitrous Outlet

iTrader: (25)

Was your air fuel a straight line or did it start off at 12.7 and then go richer at the end.It looks like your nitrous pass droped off on the hP sooner than your N/A pass.This would indicate a low bottle or just to rich at the end.
Make sure you email me some pics of your install so I can get you in our customers pictures on the new site that is being built.
Dave

SamsonXD

Hi Dave thanks for the help really appreciate it here is the graph with the AFR on it.



minimum was 10.78 Max was 14.51 Average ws 12.73 The guy that did the install is ordering some new plugs. He was not comfortable with going over a 100 shot without going to a different plug then the TR-6 that I have now.

Thanks again

NXRICKY

iTrader: (1)

hmmm short on power what was the jetting you were running as in the jet numbers..
Ricky

jamnut

iTrader: (4)

You shouldn't be showing me pix of Nitrous systems on Hemi's. We are getting ready to trade my wife's 05 Magnum RT in on an 06 SRT 8 Magnum, I promised my self that I wouldn't mod the SRT8. Don't make me a liar.

02NHRA

Thats a cool setup..I havent seen too many 300's modded yet.

SamsonXD

Hey all thanks for the words and all, NXRICKY the jet sizes are nitrous jet 28 and the fuel jet was 25. Jamnut I am envious of you I would have loved to have gotten the SRT-8 but at the time there were not any in my area, good luck on that and nothing wrong on making it better mod away, it's only money after all.

Thanks again all for your help with this

slowtealz28

Any passes on the car yet?

NXJeremy

Samson, I would recommend double checking those jets again. I'm thinking you just got them backwards (fuel should be 28 and the nitrous is should be 52 instead of 25), no big deal. It does look like the power fell off rather quickly though when on the nitrous. Is this an automatic? Also, were you able to reproduce the same, or similar, results on the nitrous?

NXRICKY

iTrader: (1)

100 shot is 52 nitrous and 28 fuel as a starting point.
Ricky

TNTramair

iTrader: (15)

N/A power seems to be very low...thats allmost a 100hp loss through the drive train if it were correct..(345at the crank advertised)...something doesnt seem right...the nitrous numbers will improove im sure when you figure the n/a power thing out.

SamsonXD

Sorry about that my ADD kicked in there i typed that wrong, it was 52 nitrous and 28 fuel. I asked the guy that put it in for me today and he told me that by his numbers on the Mustang dyno that I should be around 241 RWHP on his dyno so my near 247 was where it should be. So I lost around 28% I guess, the car is an automatic. Thanks again guys appreciate all the help. Have a great day.

CAT3

iTrader: (9)

Ok, my thoughts on this....
Dont get wrapped around the "low" dyno numbers, but use the printout for tuning and diagnostics. Mustang dyno's are like the car with the same name, they go low period! Want an extra 30rwhp, put it on a Dynojet.
The graph with the AFR, the ratio numbers came out very light, but it looks like it drops to 11:1? The afr is not consistent with the rpm vs. load. You started your pull at 14.5'ish and when the WOT hits, the fuel slowly drops to the 11:1, rather than dropping down as soon as the PCM see's the threshold for WOT PE. Not sure how the Daimler tuning works, but on the LSx, you hit the WOT the PCM (if not altered) immediately drops the AFR to set PE (in the perfect world), but never seen one that slowly descends like yours. Its as if the PCM doesnt realize its supposed to be adding the PE fueling until like 1500rpms later when the pull is over. Which is also throwing your "low" numbers out of whack, since you want to be rich at pk tq, and leaner at pk hp!
I also wouldnt play at all with "averages" when talking about afr and nitrous. Theres not enough room for an "average." You go too lean and boom.
Is there anything with the tricking of the WOT vs. Trq Mgt that might be making it act like that? Might want to look into it.
GL,
Charlie

SamsonXD

Thanks for that Charlie, nice clear explanation for me to follow there. When we set the TPS to come on it was reading 5.12 volts for WOT, with the 75 shot things were fine the first time we used the 100 shot though the torque managment kicked in and ended the spray almost as soon as it began. We set the TPS to read WOT at 4.52 volts and the torque management never came on once. Hopefully a programmer comes out soon, the PCM I guess is proving hard to program well this is a learn as we go type thing not much info out yet, anyways thanks for all the information I have studied this board for hours at a time and thank you all for helping a newbie like myself.

Have a good one

CAT3

iTrader: (9)

My buddy is into Mopars and has experienced the same issues, only with a truck. The only tuning I know of for them is Diablo, not sure for your particular appication though. Its weird how the fueling just lazily goes rich, the power shoots up and then drops off like a rock too. I hope you do get some kind of tuning into that thing, would be awesome to see this on video.