ATVracr

iTrader: (5)

What do you think is worse for a motor?

1. a split second lean spike, that happens during the converter flash when your racing.

2. a full 1/4 pass on a VERY rich tune up?

More motors have been hurt rich than lean, a rich tune is not a safe tune.

MontecarloDrag

iTrader: (3)

All things in excess are dangerous. Too lean is bad, too rich is bad, too much timing is bad, too little timing is bad as well, etc.
Some tuners are afraid the owners will blow their engines and tune them pig rich thinking it will protect them. Wrong

The lean spike was from 3200 to 3400 RPM, with 16:1 AFR peak. It wonk hurt your engine, and it may be happening N/A as well.

Of course it can be greatly improved without throwing off your N/A tune. It smells like PE table raping.

RealLiveMD

iTrader: (1)

This is a wet shot and I have a separate fuel cell with pump. It's HSW 100 pills. Is there anything I can adjust to help. My current fuel pressure is set at 55. I also have a wideband hooked up.

BLK02WS6

iTrader: (2)

That is stupid and a good way to break ****! NOT the proper way to tune a nitrous car at all... you start low on the timing and raise it one degree at a time until it stops making more power - back up to the last timing that gave a power increase and leave it there. Any more timing than that puts you closer to buying parts... you don't rely on the knock sensors.

BLK02WS6

iTrader: (2)

First thing I would do is look for a new tuner... That rich is not fine. The initial lean spike will not blow the motor. And he didn't see what timing the engine made the best power at on the spray? What exactly did he do - throw the car on the dyno, make one pull and send you on your way? Hopefully it isn't already hurt...

jdaniel

iTrader: (1)

How about a simple answer to this... Its my car and I know it. Its my car and if it blows up it still doesnt affect you in any way outside of maybe a good laugh on my screw up. If it blows then I do a stroker. So when it comes down to it you cant lose. Just me. Why do you care?

I also launch it at 5000 on 28" slicks at 11 psi with the stock IRS and no brace and upgraded half shafts. Are you going to teach me how to launch now? Maybe you can get my 60' out of the mid 1.4s and into the 1.3's.

Have a good day.

BLK02WS6

iTrader: (2)

Just wanted to point out to anyone reading on here trying to learn something that this is not the right way... like you said, its your car... I'm pretty confident you'll reach that "bust" in your signature. The epitome of more money than brains... You have a good day yourself!

jdaniel

iTrader: (1)

I think I will have a good day.

3fingas

iTrader: (16)

LOL at this thread..

NitrousExpress

iTrader: (4)

Why dont you give me a call sir? Or tell you what PM me your number and I will give you a call. I think your are getting bad information from every angle and I would like to help.

Your setup should be easy to tune and setup. No point in letting a few guru's tear up YOUR motor. Hoping to hear from you.

Graham @ NX

danger ds

iTrader: (1)

reallivemd I am in the same boat as you are, keep us updated

RealLiveMD

iTrader: (1)

Just got off phone with brian. He explained that my NA tune was spot on for my 243/cheatr cam combo. I have 116 in a 55psi standalone on a 100 shot. He said that the pill size basically determines how much fuel will be sprayed in a wet kit. Therefore, he set the NA tune to be spot on, and, the pills basically spray what they spray,(which wouldn't be his fault). He is going to explain later.

3fingas

iTrader: (16)

brandoz28

iTrader: (3)

if it's running as rich as your wideband says it is, then the jetting or fuel pressure (maybe both) need to be adjusted

danger ds

iTrader: (1)

I am running a 28F jet in mine with 55psi in the standalone running 116 also.

Unaffliated Racing

iTrader: (15)

ok... here we go.

For starters, any of you who can determine my tuning abilities or know the complete situtation just by looking at ONE dyno run. I need to hire you. That ability would be priceless.

As you can see by the two runs posted, the NA run is spot on. And all of you should know that a pill has a hole in it, that hole size doesnt change. I have no way to correct fueling that changes during the course of a WOT pass.(unless some of you know where I can buy some electronically controlled variable jets.) Everyone is soooo quick to blame a tuner. Did anyone stop to think about the other variables that control fueling when the jet is a constant? Bottle pressure, fuel pressure through the solenoid,timing, weather conditions that effect timing.

I looked at a couple of other runs on the dyno before I left the shop today. Would you believe there is another run that does the opposite? It starts out rich then get leaner through the run.

I'll be happy to correct the nitrous fueling changes in the computer, but I don't think my customer will like the portions of a N/A run that are 15:1

All i'm saying is.... don't be so quick to jump the gun without knowing all of the information at hand.

Thoughts, input?

Thanks,
Brian

BLK02WS6

iTrader: (2)

It's easy to tell from that one dyno pull that it isn't right... All I'm saying is that if that was the final pull and the customer was sent away with that being his final nitrous tuneup (kind of hard to tell from his description of what is going on here), then that is messed up... If there is something wrong with the kit, and it is all over the place with the fueling (rich one pull, lean the next), then someone needs to figure it out. But that isn't what he came in here asking about.

Yes, jets have a hole in them that doesn't change... that's why we change jets to get a leaner or richer mixture. Overly rich is not fine or safe...

If there is more to the story, the OP didn't give that info. And actually, you didn't really give any futher info either...

I understand that some people do thier own work and come to a tuner only wanting to pay for computer changes and dyno time (I've had plenty of them)... then on the first pull on the dyno, the setup is pig rich (and what do you know, they don't have any other jets than what came in the kit) or they have something messed up with thier wiring or other hardware - but at least they are sent away with being told that they have to fix the problem or buy more jets before the car can be properly tuned...

From what it sounded like, the install of the nitrous system and the tuning was done as a package... was the dyno pull posted above the final tuneup, or were their problems with the setup that needed to be fixed?

MontecarloDrag

iTrader: (3)

I think your customer is very confused.

He first asked about ignition timing for a H/C engine, Then for 100 shot and a 150 shot
Said his wideband reads 9.3 AFR (Has HPTuners and pays tunning services)
Then the plugs had black spots...
Then attached a dyno sheet with AFR 10:1 and said it was the dyno pull when his car was tuned.
Later he tells us his tuner said it can't be fixed and rich is fine
After that, he says one plug has oil

The dyno pull shows 10:1 AFR from 4800 to 5400 RPM, then it leans to 18:1 AFR from 5500 to the end of pull.
We can't know what's wrong, But it can be fixed.

Nobody can fix the guy's car over the internet, so what everybody said is an opinion, nothing more.

NitrousExpress

iTrader: (4)

I have talked with Brian. Heres some more information.

That pass was not the last time the car was on the dyno. The customer was aware of what was going on. The NA pull as can be seen is very clean. So the actual tune is not the issue. Brian is going to post a graph Shortly with another Nitrous pull showing it going rich and then lean. Clearly this is not in the tune.

Im going to talk with the OP as far as what all has gone on with the nitrous kit itself, aswell as the tune up for the nitrous ( Bottle Pressure, Plugs, etc. )

This thread has a largely scued idea of perspective. I think after I call Doc (OP) we can have a resolution to this ordeal.

Unaffliated Racing

iTrader: (15)

This kit was not sold or installed by me. Matter of fact I happen to know this kit has been installed and reworked a couple of times by the customer and another local shop.

Where it leans way out in the run..... it's obvious the sensor came out of the exhaust. This was a year ago.

Here is an overlayed graph. Please let me know where I can get those electronically controlled variable jets