Fuel Pump and Chip

[Syclone#1992]

Need some help here,

I want to know if I am always going to have to mess with the fuel pressure on my truck once I have the regulator and pump done. I don't want to have to tune this thing constantly and work on it more than enjoying it. I want to be able to get in it and be able to go when I feel like it. I want to run Dig's chip too.

With these mods will it be a pain in the ass to tune? I don't want to have to worry about running lean or rich all the time or anything like that.

 

[SY2932]

If anything, those mods will make your truck run MUCH better and SAFER too. It is pretty well known that the stock fuel pump really isn't adequate. I was very weary of doing any "mods" to my truck at first until I learned about the short comings of the engineering that went into the truck. Think of it as a longevity modification rather than a performance one if that helps. But, in reality you are killing two birds with one stone-it's a win win deal.

Mike

 

[turboj91]

Well put Mike, I agree 100%. I did not know much about these trucks when I bought mine and then started reading EVERYTHING on this site. Learned alot on mods, safety ect... My suggestion, read, read, read. You won't be sorry and more than likely won't be constantly tuning.

 

[Syclone#1992]

Turboj91,
It seems like that is all I do is read on these things. :grin: Do you always have to adjust the fuel pressure regulator? Or how often do you for it to run right. I kinda wanna be able to turn the key and go and not always worry about this thing.

 

[smeagol]

I kinda wanna be able to turn the key and go and not always worry about this thing.

HAHAHAHAH

Funniest post of the week :wink:

Good luck, that is every Syty owner's goal.

Getting there is the fun...

 

[Syclone#1992]

Thanks for the post BG :grin:

Now can you give me any other advice? I wanna know If I will always be adjusting this regulator when I get it. I am trying to do these things that you guys recommend...but I get some smart ass answers instead of advice. LoL :razz:

 

[kwick6]

Adjusting the regulator is a matter of loosening the lock down nut and turning the allen bolt. If you plan on putting an aftermarket chip in then you will have to up the pressure. With the ultimate, I think its a 50psi base pressure. Some trucks might do better with 52, just depends. So to answer your question, yes you will have to play with the fuel pressure a bit if you put a chip in there. But once things are running right, you really shouldn't have to mess with it. I have gone weeks without touching the fp. Then there are times when I have changed it several times in a day, but that is when I put a different turbo on.

 

[Syclone#1992]

Thanks Scott,

Thats what I wanted to know. Once you get it tuned with the chip you won't have to change it all the time. You are saying once you tune it right and tune it to around 50# then I won't have move it or change it. I know it is easy to change. I just want to know how often, So if you tune it then you are fine for a couple of weeks/months.

 

[smeagol]

You may find a certain fuel pressure is best for the truck as it sits... but then if you want to go to the track, raise the boost and run different octane... the *best* fuel pressure for that situation may be different than the initial fuel pressure you had set it on. Race gas is different than pump gas, if you tune it for best WOT performance, you may have poor drivability down low.

So you may have to make a compromise for the *best* fuel pressure for your truck.

How to determine what is 'best'?

For drivability - what are your BLM/Integrator numbers at ?

For WOT - what gives the best performance with the least knock retard ?

 

[kwick6]

I answered this as if it were me driving.
Should have considered the different conditions, race gas, boost levels, etc.
I don't go to the track and when I changed the boost, I was always running race gas.
I used to keep my truck on the T1-16 setting 99% of the time, so the fp didn't need much tweaking. If you make trips to the track, or have a boost controller at your fingertips, yes I would say that your probably going to be changing the fp often.

Scott

 

[turboj91]

#1992, here are some opinions and options. Although the women keep thinking my name is "God" when we are -oh wait, wrong subject - I am not God so take my opinions/advice with a grain of salt - I am not responsible for the unforseen. Seriously, I do not know what your ultimate performance goal is or how much you will want to "play" around getting it to go faster (horsepower is addictive-you always want more) but to me, it almost sounds like you would like to tune it to a respectible and safe level and then just drive it. If that is the case, you will need to set the fuel pressure for your combination and tweak it a bit. There is no pressure that is guarnteed for everbody's truck. I know 50 lbs is the starting point for the Ultimate chip. May have to tweak it a few pounds to get it perfect for your combo. Once you get it "right", barring any unforseen circumstances, it should be fine to drive as is for quite some time. I would get a fuel pressure gauge and watch the pressure. As long as it stays constant with your original setting (the one that worked/preformed best), you should be o.k. If the pressure increases, find out why, same for a decrease. With properly functioning equipment, it should not require constant adjusting when everything else remains the same (ie , you did not install a larger turbo, change your exhaust ect...). I think with these trucks and any other high performance vehicle for that matter, you should never use the Ron Popeil Rotisserie & BBQ claim to fame of "Set it & forget it". To sum up my ramblings (glad I stopped myself!), you should be able to tune your combination and then sit back and enjoy the ride. Watch the gauges (all of them) for any changs that might be a telltale sign of something going amiss. A Datamaster run every now & then wouldn't hurt either for keeping an eye on things.
Lastly, about the reading, I spent weeks reading everything I could bring up on the screen. I feel much better now, knowing the idiosyncrasies of these trucks. I spent many a night up to 5 a.m. reading and learning. I found that if you read the topic all the way through, you will find your answer in there somewhere and most likely find some humor as well. Let me know if there is anything else I can ramble on for you about. Hope this helps and makes you more comfortable about enjoying the ride. (please excuse any typo's and mis-spelled words - tooooo many hours at work will do that to you) Peace.