Want power go F.M.S.

[TORQUS MAXIMUS]

VERY very good greyghost, I didn't think anybody would get the scientific name of my sig. Good job. -Ray-

 

[TORQUS MAXIMUS]

Oops, sorry greyghost, I was so impressed with your answer, I forgot to give you the number. You can reach Mark at TST at 812-342-6741. Hope this helps. -Ray-

 

[greyghost]

Thanks, my buddy was askin' about this last week (he doesn't have a membership to TDR, the looser). But anyway I've been handin' him his %#$ with my PE comp.

 

[KLockliear]

Originally posted by TORQUS MAXIMUS

If I'm drag racing, I want it to fuel hard as soon as possible.

If you're drag racing, you should be over 10psi before you leave the line.

 

[Steve St.Laurent]

It's hard to do that with a manual Keith! Mark can custom program the powermax to any setting you want. The box I have for example is set for a 70% max duty cycle on the solenoid.

 

[Billy Diesel]

I hate it when I show my ignorance... ... .



Someone want to explain how the different duty cycle percents effect the fueling? Does it defuel at a higher RPM or something along those lines?



Thanks,

 

[CRoth - BD-Power]

Remeber

Is there any benefit at all in increasing the duty cycle if the fill plungers are already empty?? What about the fill? can it fill the chamber again?



With a higher duty cycle you are driving the solenoid much harder, hence more current, less pump life.



For information purposes, we dyno'd a Competition version of the PowerMax 3, anything above setting 7 you gained marginal amounts of HP (3 HP per level).



Also boost is not indicative of how much power the engine is producing, if I retard the injection timing I still develop the same boost but the power is down.

 

[CUMINNTSTRKN]

Originally posted by TORQUS MAXIMUS

I also remember that post by Tom(Briar Hopper). You guys are forgetting that Mark Chapple can program his TST Comp boxes as wicked as you want it to be. Just ask Briar Hopper. He out dynoed the blue chip premium by 20 h. p. The blue chip fuels to 63%, the TST comp normally fuels at 59. 9% duty cycle but the one Briar hopper had fueled at 65% at the time. I think he has it back to 60% now. So if you ask me, It's the most powerful fueling box there is bar none because of the fact you can have Mark Chapple program it to any duty cycle the user desires but you must sign a waiver first. Plus The TST fuels at maximum at half pound of boost versus the blue chips 10 pounds. If I'm drag racing, I want it to fuel hard as soon as possible. Hopefully Briar Hopper will chime in here to verify this. By the way, what box do you think I just bought?

i remember this test but just to be fair they never tried the edge comp during those tests. fyi



jim

 

[Snow man]

Also there is a word for those custom boxes that fuel over 63%,they are called pump eaters. The VP44 wont live long,and the power gain is hardly worth the short pump life. You still need to run a timing box to get the low end power too.

 

[TORQUS MAXIMUS]

All I said was that Mark can program it to any duty cycle the user desires. I never said the pump would last though. I have the competition box. It will be installed sunday. It's set at 60%. Don't want to take it further than that. Don't want to kill my pump any faster than I have to.

 

[ToolManTimTaylor]

Originally posted by Snow man

Also there is a word for those custom boxes that fuel over 63%,they are called pump eaters.

Yeparoo.

My Blue Chip Prem Maxes out at 63% (Death to Vp mode is Drag Mode on the box) I found a sweet spot with mine set to 38~Ish for normal driving in the winter and 25~ish in the summer. Fun begins after 40 and continues thru to 50's however it feels like she doesn't change much when deep into the 50's / 60's. Ut Oh



However to back up the VA deal I ran mine WITHOUT the VA (Old School) and yeah she was a pig (laggylow end and flat in the mid). Va back in and and all came back. The benny's aren't found with the BC by itself it needs Timing to do it's Thang.



Good news is that I have the fuel flow to Back the fueling demand up. The Pe 4200 won't pull down below 12 Psi W. O. T at 63% with DDIII's #ad
All Hale #ad
Fuel Flow

 

[78repowerwagon]

The FMS fuels differently for each level on the smoke control. On Drag race mode it will fuel 63% with very low boost. I am not sure exactly when it comes on, but as soon as boost is present,(. 5-1psi) it dumps 63%(or whatever it is set on).



If it is on street mode minimum smoke then it starts fueling slowly at lower boost levels (5-10psi) and climbs with boost to keep smoke down.

 

[CUMINNTSTRKN]

78rpw



does the fms fuel less than stock? this is a handy feature that the comp has for those of us running huge injectors.



jim

 

[Snow man]

I have great driveability with my comp on 1x1,and bully dog 7's. I can drive without killing everyone. If I turn the comp off,it is impossible to drive without smoking heavy on shifts and taking off. The comp boxes ability to fuel below stock on low end makes a huge difference in the ablity to run serious injectors and maintain streetablity.

 

[overfueled]

CUMINNTSTRKN



Yes the F. M. S. gives you more than two options to do this in the fueling of the power curve.

1)you can use the standard 0-63% program ratio based on boost pressure.

2) you have four other options that change the amount of fuel % level this is called smoke control

Level #1 is More performance

Level #2 Normal smoke

Level#3 Less smoke

Level#4 Minimum smoke



All if these change the program curve to some degree for more power more smoke or less power less smoke. All of this is in a relative sense of the word POWER and to what degree of boost, injectors, air filter,turbo all come into play, but apples for apples this is what we have with some of the options of the F. M. S. Overfueled

 

[CUMINNTSTRKN]

snowman



that is what i was talking about.



fueled



the comp will actually allow less than stock fueling at low rpm. so as snowman has said we can run huge injectors with the comp and have a driveable rig. as with the fms we couldn't sense it can't flow less than stock.



don't think i'm picking on the fms, it's a great box it has some bells and whistles the comp doesn't, but for overall driving and hp box for box the comp is the winner. and if you have huge injectors in a street driven truck the comp really seperates itself from the fms.

by huge injectors i mean stage 4 and over.

the other thing is i have known guys that have done emission testing with injectors bigger than 4's and have failed the opacity test with the comp off, and retested with it on 1-1 and passed.

 

[78repowerwagon]

Here is what I found this morning driving:

I was running 70mph as a starting point back out until it would be 0. 3-0. 5 psi boost then step in it.



FMS on 63% and minimum smoke it fuels 2% until approximately 10psi then gradually climbs to 63%



On less smoke - 7% until around 10psi then ramps up a little quicker.



On normal - 12% until around 10psi



more perf - 17% and ramps quickly to 63%



On drag race mode it will go from 0-63% immediately with less than 1psi boost.



Also it depends on throttle position. I can drive in drag mode 63% and see 2-3% with 9psi and steady throttle.



I was trying to see at what psi it would be at 63%on each level, but it would just spin when it started ramping up.





cumminntstrkn,

If I understand it right the comp on 1x1 fuels less than stock? Do you know what level, like -10%?

 

[CUMINNTSTRKN]

78



i'm not sure of the actual #. but when we were testing the defueling at there shop, i was able to watch on there laptop the stock fueling, and the actual fueling. one box they made for me had so much defueling it wouldn't spool the turbo forever. on the normal comp's i would say it's more like 30% reduction on 1-1.

it will take a smoke belching pig and turn it into a nice a clean truck.

it defuels only until a set point, then they start fueling over stock. it is still based on boost. so lets say from 0-15lbs boost the comp fuels at -30% and then once it hits 15lbs of boost it will start to fuel.



jim