How Much Timing Are You Running?

[PToombs]

How much timing do you have? If you don't have fuel specs in your signature, please add them to the post.
I'm curious how much fuel you guys are running at how much timing.

I'm trying to figure out why my EGT's climb really fast when I hit 3k rpm. I had someone tell me my timing was too advanced, then tell me it was also because I was running 5 gallons of motor oil per tank. The higher flashpoint of the oil was slowing down the burntime, and going out the exhaust.

I just thought I was out of the map range of the turbo, H1C, Stage IV kit, and 16cm exhaust housing.

[dvst8r]

Whatever "to the head" works out too.

[Richie O]

Pete, I am like 3/16ths past my line. My truck sounds like a 3126 cat when idling. My egt's are better then they were when in stock settings. I don't really fuel past 3100 and have the 4 inch turbo outlet so I don't think we can compare to much. You turn alot more then I can.

[GLHS]

Mine is set at 2.15. When set to 2.35 (the max I can go without jumping a tooth) the boost drops, egts drop and it wants to rev to 4200+.
I think 1.75-2.10 is where you should try.
I do have a timing tape on mine and it seems to convert to 21*. I know that does not sound right but, that's what it seems to measure out.

I remember reading somewhere that the conversion in degrees is close to the mm of lift. 1.45=14.5*, 1.95=19.5* and so forth. From different lifts and comparing to my tape, it seems to be pretty close.

I need one of those timing lights to check while it's running; what are those called for a Diesel?

Get rid of that puny turbo Pete! 62/65/14 or 13ss you will like a bunch. 62/71/14 or 13 if you don't mind a bit of lag or possible surging.

[PToombs]

I'm running 1.65mm now, which was a 1/8th inch turn.
Kurt, I didn't really want to go smaller than a 16 housing. I do tow with it, but not often. When I do, it's about 11-12k lbs. Do you think a 13 or 14cm housing is big enough?

[GLHS]

Again it may not sound right but, the 62/65/14 or 13 will cool way better than a hx-35 with a 16 ever could.

I think there is more to the turbine equation than what the 12,13,14 and 16 looks like on paper.
An s300 12cm (.70 A/R) will cool much more than a 12cm from an hx-35. Don't know how to explain it but it does.

If you tow that much, the 62/65/14 is what I recommend.

Coming from a guy who has tried all of the above mentioned turbos, there will never be an hx-35 on any of my trucks ever again.

I would also use an ATS exhaust manifold too. BD and HTTs are one in the same and are not as good........period!

[Mad Max]

Fellas, my 93 is running a 14cm w/g housing and an HX-35, plus the ATS manifold, and it is a towing MONSTER. The 14cm housing is awesome. Keep in mind tho, the HX-35 was done because...for now...it is destined to be the first half of the twins - a HT3B is forthcoming ...

[fergavs]

My duallie has a jumped tooth and about 1/4" past the factory mark and it is rude. It pulls the revs pretty hard and has decent EGT's for the fuel I put to it.

The 91.5 is slamed to the head. It idles a little different but runs awsome. I cant get the EGT's above 1150 with my current set up.

[bgilbert]

Mine is plus one tooth, and pump to the head on the twin truck. Makes max power at 3k . My auto truck is to the head and idled great with the bigger EDM's in it, but now that the stockers are in it, it sounds not so great, like a 24 valve .

[peobryant]

I just ordered a Snap-On pump wrench, so i will be doing the timing pretty soon. Do you think with the mods in my sig. a 1/8 bump would do alright?

[PToombs]

Parker, won't hurt a bit.

Kurt, I have an ATS on there now. I saw a chart, and it flows better than the other 2.

Can I use my stage IV hybrid in a twins set? Or is a 62/65/14 going to be enough?
I may biggie size my fuel and go to 6 x .016 injectors, as they seem to be the hot ticket. I won't be doing that this year though. Maybe never. Depends on how good I can get it to run with basicly what I have now.
I want my next turbo purchase to be the last until something pukes.

[IRoss]

I've been running my timing between 'to the head'which works out to about 2.2mm on my pump, and 1.8mm, which think is about 18 deg, and it idles a little funny but pulls real good up higher with the pump to the head, but I think I get better mileage with the lower timing, and a bit better low end grunt....no gsk but defuels at arounf 3k...