White2000TA

iTrader: (1)

ive been trying to figure this out for quite some time. I am at a complete loss. Here is the setup. FJO progressive minicontroller, WOT wired to pcm tps, tach off the tach line on the pcm. 90mm plate system jetted for 200 shot. Activation is set to 3000 - 6800. Converter is a yank 4000 and the transmission is a 2004r.

Problem is my 60ft times are the same on motor as they are on a 200 shot. The car does a 1.46 60 on motor or spray. It doesnt look like its spinning according to tire wear patterns and some videos i have here. Also if it was spinning I would think it wouldnt be near as consistent as it is.

www.fast-ta.com/xvideos/nfme08_990.wmv

the nitrous system makes a difference in ET and mph NA = 127ish 200shot = 135ish.

AFR through the runs looks good if not a little rich.

Even though im using a progressive controller i use it wide open with no progression.

Im not getting detonation anywhere in the run.


Anyone have any ideas. I have attached 2 log files.

NX kit, nitrous outlet plate system.





NA Run............................................... ...200shot
60ft.........1.528................................ ....1.475
330.........4.364................................. ....4.087
660.........6.809................................. ...6.317
660mph..100.49.................................... 110.46
1000......8.929................................... ....8.255
1/4........10.71.................................... ..9.90
1/4mph...124.71...................................13 6.00

SY732

Your example shows 1.5 vs 1.4 60's???

What are you stalling it to?

When does the N20 hit time / feet wise?

Have you confirmed your controller is reading rpms correctly?

I bet its your wot via tps setting if the voltage varries it will delay the hit or cycle it on/off, lower it a bit.

Then set the controller for 2800-6800 60-100% over 1.9 seconds and work on all 3 variables from there.

White2000TA

iTrader: (1)

i have tried launching at multiple rpms some at 1200 and some at 2800. no real change. the car we 60 na at 1.47 as well. i cant tell where the nitrous is kicking in but by the timeslips looks like between 60 and 330. the rpm seem right. i tested it by setting it to activate at 1200 with the plate disconnected? there is a light on the controller that says when its activated. not sure about the delay. but doesnt appear to. i thinkl i should expect .1 or so off the 60 on a 200 shot? am i wrong?

SY732

You cant feel a 200 shot hit?

Does your log file show a lean spike? when?

I would tweek the tps voltage setting first.

Yes it should drop your 60' but you should also feel it hit???

White2000TA

iTrader: (1)

i feek it hit but not off the line. hard to say exactly, but i would have guessed before the 60ft. people at the line say its midway to the 60. there isnt a way to adjust the tps voltage on the fjo. it learns using moving the throttle to 100 and back.....i can get it to vary slightly but basically the same. also i can verify it activating at wot becuase a light on the controller comes on. no lean spikes in the logs. if it runs 10.6-10.7 on motor would you expect 9.8s on a 200? i would think more on that as well, but i think its all in the 60..

SY732

Yes thats the same as mine just dont go to 100% WOT go ~95%

I watch the voltage and set it a few volts lower IE if it sees 4.6 at 100 set it to ~4.3 or ~95%WOT.

Just make sure when you do spray your foot is to the floor.

The problem is even with your foot to the floor it does not always stay at 4.6 it will fulctuate a bit.

bjamick

iTrader: (31)

Go with a 2 stage kit and get rid of the progressive. Then you will see a drop in the 60'.. IMO.

87Lt1Monte

iTrader: (1)

But what he is saying hes not progressing it.. So that should not matter.. I would deff. check what the WOT is and set it at that or a couple lower like stated above.. Also check to see if you have the controler reading the correct RPM.. Also i have blown up so many 2004r's in my monte carlo running 11's how the hell do you keep that thing together? I heard of Art Carr doing some good things with them .. Also maybe your blowing through the converter to high of a stall for the juice?? Let some people that know more about that chime in..

Bhogan909

iTrader: (6)

Do you maybe have your timing turned down when you're going to make a spray run. What I mean is that maybe the timing is turned down so that your tune will be safe and you say you leave at say 1200-1800 and then when the nitrous hits at 3000rpms maybe that's where you lack. Maybe it's a tuning issue...some people turn timing down and richen up the car on the motor before they spray it. If this is true and you do this, have you tried a motor 60' pass on the spray tune just to see what it's doing?

White2000TA

iTrader: (1)

The runs are all the same tune. It is a nitrous tune. Usually I leave that tune in because its still safe (albeit rich) on motor as well. Ill check the voltage on my logs to determine what the tps is reading at WOT. It could be timing, but my log has spark on cylinder #1 and it doesnt appear too bad. I do get a bit of exhaust on the launch.. not sure it means anything tho.


http://www.fast-ta.com/309-M08.jpg


The 2004r is built by century trans. Mike there has done a great job and it is completely upgraded. Supposed to handle 1k.

TJ

iTrader: (10)

could be the converter eating some of it up on the hit?
where is it flashing when you launch on the bottle?
my yank 5000 didnt net much on a 150 shot.
1.51 motor 1.48 spray, but 7 tenths et by 1/8 mile.

White2000TA

iTrader: (1)

Well i talked to Dave@Yank and he said if i was blowing through the converter it would be on the top end not the launch. We checked the shift extensions and they were greater than 700rpm so he said that was sufficent. Dave also mentioned it would be very inconsistent if it was the converter. Other than that information I dont really have a way of telling if its the converter.

daniel6718

iTrader: (36)

200 shot should pick up about 15mph easily...
what pills? bottle pressure? noxzzel placement? dyno?

White2000TA

iTrader: (1)

Its a plate system.

http://www.fast-ta.com/coppermine/al...f/DSC01316.jpg

i dont have dyno numbers on it, mainly because the afr has always been good during the runs and its hard to "launch" a car on the dyno.

The jets im using are:

Fuel: 78
N20: 43

SY732

My logs (HPT) do not show actual voltage so in the log it is at wot I assume the stock control has the voltage varriance built in, but if you look at the voltage it varries a bit.

Does your fjo show voltage? what is it set at?

White2000TA

iTrader: (1)

My fjo doesnt show voltage, but i can log the tps voltage with efi live. Im checking my log files to see what wot looks like.

SY732

If thats the case the jets are your problem LOL

It should be N20 78 and Fuel 43 was that a typo ?

White2000TA

iTrader: (1)

oops yep lol

White2000TA

iTrader: (1)

Time to go out to the garage and try to log it wot One sec

White2000TA

iTrader: (1)

100% is 4.8v