timing=more power?
 

ok this is a dumb question but does timing make my truck run better,smoother, or just more power or all of it. i know dont go past 16* on stock head bolts and etc. :s:

it'll run smoother, cooler egt's, better fuel mileage, quicker spool up,
n i may have this screwed up but i think it causes higher cylinder pressures (hence blown head gaskets) and lower drive pressures.
i have mine at 16.5* with stock gaskets n head bolts

My buddy has his at 18* on stock bolts and gaskets and hasnt had a problem yet. Its only been that way about a month though. He definately gets better gas mileage, and very noticable difference in power.

yes your cylinder pressure does increase with more timing, as for turbo spool when your timing goes up less energy is actually sent to the turbo charger so it would spool slightly slower. dout you could ever feel it going from stock to 15* or 16*

there ya go, he's prolly forgotten more about these trucks than i've ever known

:tu:I just set mine from the stock 14* to 16* a few weeks ago I should have done this years ago It does run much better

not trying to thread steal, but i really really don't wanna take mine to a shop to have her set. i know i could physically do it, but never doing it before and it being my daily driver has kept me from it. i would love if someone in my area could show me hands on how to adjust timing correctly, this way i could adjust the timing myself later as more modifications call for it.

thanks for the info id like better fuel mileage for sure and how much does it round about cost to have it

i bought the tools n did it myself. i think they cost me like 180. n its really easy to do

sounds good guess were huntin unless u got work im bout to head to the stand wish me luck on the 600 pointer lol

good luck on bullwinkle man haha, im workin. got the 300 in the car just incase....

When i got the new injection pump i surposely setted my timeing at 16.5 but some how it jumped to 19.1degrees. So i said screw it and drove it with the stock HG and head bolts and i was fine but buddy you wanna talk about difference in power!!

ha ha maybe ill jump mine to 19 on accident

No joke man. It scared the f**k out of me when i pulled outside of the parking lot and wanted to be cute and the tail end of the truck fish-tailed in on comming traffic:scare2:

i REALLY wouldnt recommend goin to 19 without studs. sometimes ya get lucky n stuff holds on, but 99.9% of the time it wont. its just like my turbo, i know for a fact it shouldnt be pushin 50psi, but for some unknown reason its still kickin. im just lucky right now, but eventually it WILL go bang

im at 26 degs but i have a s400 with allen head bolts. bigger turbos reduce drive pressure. you cant start the dang thing this time of year very good. good on the track in the summer time. not for the dd:tu:

I thought the same thing with mine everyone was amazed it was holding on that long it went bout 6 months on makin 56psi then one night i was racing and she just went !

that big of a difference huh? does it reduce smoke

30* at the pump here with head studs.

for the street I always liked 22* at the pump

---AutoMerged DoublePost---

Timing in a nut schell ... would you rather have top end power, mid range, or low end torque?

mid to top end power and does it reduce smoke

your still injecting the same amout of fuel just sooener ... but yes it should slightly reduce smoke.

AFC tuning will make more difference in smoke control than timing will

It also depends on how you drive your truck as to how much it will hold with stock bolts. Im one that wont go past 16.5 with stock bolts but i did a truck with stock bolts to 23 and it lasted until he got rid of the truck and when he got rid of it the kid didnt have it for the weekend and it got trashed. It will greatly effect your spool time with a bigger charger and poorly tuned afc, and this said truck hated cold weather by the way.

heard that well i just want a little more power with this nv4500 comin im goin to 19!!! how much does it cost to get a pump flowed if i take one off and take it to them to so i cant get a little more fuel with timing at once

depends on whom does it ... round about $300 ish for balanced and flowed

so i might as well go big huh

---AutoMerged DoublePost---

or just wait till i get the money to go big and get a bigger turbo

if your gonna do it, now while the pump is off is the best time. you will always be able to cut fuel via fuel plate pos for what ever charger you end up with

the problem with adding too much timing is that the p7100 has fixed timing, and even 12 degrees is alot of timing for idle speed so its a trade off, it kinda sucks really. a Duramax or any modern diesel would idle in the negative timing numbers and then go all the way up in the 30s(on a hot tune) when running.

It did to a certain point.

i can adjust idling if thats what you mean and good deal to reduce it after u roll smoke a while u just want power or i do

Are there any down sides to adjusting the timing? I heard that it risks the pistons...unsure though...:pca1:

the only downside i can see is a rougher idle(and possibly a harder start? probably not noticeable even if so) and higher cylinder pressure. you might need head studs if your boost is turned up and your timing is up as well.

so timing will reduce egts with 370 marines or make them worse

if the cylinder pressure gets high enough or if you have a lot of miles on the engine it could crack the pistions couldnt it? :humm: if something else doesnt blow first.lol.

wat about 370's and egt's lol

Its gonna be higher just because their bigger injectors. If you want low EGT's keep your foot out of it. (thats how i see it) i dont mean to be a d*ck bout it

What about when towing with advanced timing. I no egts will be higher anyhow from pulling a load but is there anything else you can fill me in on. :tu:

Just take it alittle slower and keep a eye on the EGT and boost gauge. The only thing i know, thats what i do.

Yea i have been never let it get above 1200 on the hills with the camper it likes to hover close to there running 65 or so. but just driving it's right around 750-850

I wouldnt push it above 1000*F Someone told me that if the engine is above 1100 (i think):humm: it doesnt have a purpose

i try not to just happens when it downshifts the turbos spool and bring it back under control in a couple seconds

---AutoMerged DoublePost---

What do you egt's run with those stage 3 injectors i was told to go with 5x12's stage 2 and i have twins. they said even at that it will roll coal.