Too much timing warning?

[MuscleTruck03]

I added a some more fuel to one of my smaller tunes to make it a hotter tune and it ran good but def needs more timing. I added some timing on the top end but now I'm scared to run it Will I just get a little timing rattle if its too much or just bend rods?? I added a couple degrees but im still not over 28* with 3000pw so I think I should be fine but I guess I'd like to know in general when pushing the limits on timing if you'll just get some rattle or if it instantly bends rods or what?

 

[Dirtymaxx03]

its not gonna instantly grenade a rod. if anything it'll rattle

 

[blk smoke lb7]

Timing adds heat also if its to much baby steps shouldnt hurt tho i dont believe

 

[Righteyeblind]

At what RPM do you have 28* with 3000ms? If it is at 3000rpm you wont have rattle and will be fine. Use the timing calculator to figure out your timing it works wonders.

 

[MuscleTruck03]

ya its above 3000rpm, looking at other tunes i have I figured I'd be fine but didn't want to find out the hard way!

 

[wdino73]

what's the fuel pressure?

 

[MuscleTruck03]

on the fuel pressure base table its 160 from about 2400 rpm up, got on it a quick burst and everything seems ok, have to log it later and see what everything is at

 

[wdino73]

K, I was asking cause if u add pressure even though your pw may be 2500 u will get more fuel at say 190mpa, then at 160mpa Just wanted to throw that out there for u.. U should be fine with 160 so I would say it's just needs a tweak in the timing...Good Luck..

 

[S Phinney]

If that's going to hurt you definitely don't run a PPE Hot II plus big tune. The question here on timing also is what RPM's are you going to turn your engine? The more timing you run the harder it is on the internal parts because of cylinder pressures. Yes you make power but it is at a cost. So keep that in mind. Is it worth how much more wear vs. what you get in return. It's not likely you are going to just break it but that is possible.

 

[MuscleTruck03]

K, I was asking cause if u add pressure even though your pw may be 2500 u will get more fuel at say 190mpa, then at 160mpa Just wanted to throw that out there for u.. U should be fine with 160 so I would say it's just needs a tweak in the timing...Good Luck..

Thanks for the tips! I know most people are pretty hush hush about any tuning stuff

If that's going to hurt you definitely don't run a PPE Hot II plus big tune. The question here on timing also is what RPM's are you going to turn your engine? The more timing you run the harder it is on the internal parts because of cylinder pressures. Yes you make power but it is at a cost. So keep that in mind. Is it worth how much more wear vs. what you get in return. It's not likely you are going to just break it but that is possible.

I dont run past 3200-3400 tops and I honestly rarely run my hard for more than a couple seconds and even then it's pretty rare just enjoy the challenge of building a max perf. tune. And ya I'm aware, I usually run an economy or "tow" tune because I'm sick of tearing stuff up on my truck haha

 

[DIESELMAFIAPER.LB7]

On my personal truck when it had stock injectors I ran a 3200pw (at the highest) at a 180-190 mpa and 29* timing (no more then that either) made a little over 500 never hurt nothing and didn't rattle the timing calculator does the work for you on the timing for the most part. Also how do you have your fuel coming on?

 

[MuscleTruck03]

ya I dyno'd 476 at edge with a 3200pw and 190 mpa tune but it only hit 26* timing. And I dont really know how to explain how I have my fuel coming in haha

 

[hondarider552]

190mpa? Stock regulator?

 

[hondarider552]

And I dont really know how to explain how I have my fuel coming in haha

What (I think) he means is do you have your fuel coming in hard down in the lower rpm's or more towards 2500rpm +? Even my big tune on my DSP drives very nice at part throttle, and doesnt start to fuel hard till over 2600rpm.

 

[MuscleTruck03]

it's basically a tow tune until the upper rpm's, you could DD with it

 

[MuscleTruck03]

190mpa? Stock regulator?

yes, guess I should say that's what the tune calls for iirc, I wanna say I held 21k or more rail pressure

 

[hondarider552]

Why call for 190 when the max the regulator can command is 160?

 

[MuscleTruck03]

haha dont ask me, it wasn't my tune! maybe on the tuners truck it can??