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-   -   would a compound setup help me? (https://www.dieselbombers.com/5-9l-12v-performance/90268-would-compound-setup-help-me.html)

harry22 01-26-2012 11:28 AM

would a compound setup help me?
 
Im wondering what i have for options to help my truck spool faster. It is smokey with no plate but it didnt have it when i bought the truck. When it does get spooled up it makes 40 psi at wide open throttle, and runs good. Its around town that it seems under powered and wont make much boost at all. The boost really comes in at and over 2000 rpm but under that seems to be nothing.
Thanks for any input guys!!

turbo2332 01-26-2012 05:16 PM

that turbo should spool pretty damn quick with your set-up. my super B is a 65/14 and spools like stock. the comp. wheel is smaller than yours but still. do you have any other symptoms other than laggy?

gwhammy 01-26-2012 05:38 PM

Is the marine head gasket thicker? Sounds like you might be throwing to much fuel at it from the start which will smother the fire out. The intake wheel being almost as big as the exhaust wheel makes it harder for it to get leverage and start spooling till the volume is there. This is just my guess.

turbo2332 01-26-2012 05:42 PM

but it a 12cm housing. i can hardly see that being a lag issue, it will surge

harry22 01-26-2012 08:05 PM

It fires rite up, and sounds great. It just feels slow until it builds boost. It has about 10 pounds at 1800ish to 2000rpm then from there it builds to 40 psi quickly. Do you guys think it would help if I buy a plate to put in it? I'm not sire about the hg thickness. The engine was built when I bought it.

turbo2332 01-26-2012 09:35 PM

how much smoke does it blow pre boost? if you roll into it slower than -all at once- does it smoke or is it pretty much clear? i would recomend a plate for tuning purposes, many wont i like having more to play with. your timing and cam should have you running pretty damn clean witht that turbo. what size DV's are you running? full cuts by any chance???

harry22 01-27-2012 08:48 AM

Pre boost this thing will block the sun out at noon if you punch it. Even being nice to it taking off trying to keep up with traffic it will smoke like a not real stock truck taking off like a bat outta hell. I drove it form denver co to redwood falls mn on a tank and a half. It runs like a dream down the highway. I think it might be over fueled down low in the rpm range. What plate do you suggest since i would have to buy one either way? I have no idea what size the dv's are. At wide open in fifth gear making 40psi of boost it still doesnt clear up completely, it always has pretty good trail of smoke. Its kind of annoying cuz i cant play with it without fear of gettin stopped for smoking out a whole intersection in town. :argh:

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P.S. I've never seen my egts above 900 either...food for thought, prolly didnt need to know that...

turbo2332 01-27-2012 09:39 AM

if you can blot out the sun your EGT's are higher than 900* i get to 1300ish with a heavy haze at WOT... and yes you sound way overfueled. there is a screw on the back of your AFC housing -smoke screw- under a cover. one of the screws is a break off screw. it will proly be easier to pull the housing off to do this. there is a 10mm jam nut and the screw is an allen head. just leave the cover off and play around with it. you will prolly have to back it way out. i really like my #6 plate. ive got a few to play with but like the controlability with what i have done to my truck with the #6.

smoke screw
out = less pre boost fuel
in=more pree boost fuel

also you you have the socket to full one of the DV's out and give it a check to see what it is? takes like 20min.

harry22 01-27-2012 09:51 AM

Dumb question....should i be carefull to not back it all the way out? its sticking out about quarter inch from the set screw now

turbo2332 01-27-2012 10:36 AM

you will feel it totally loose tension against the afc spring. when it does that just tighten it till you can feel somekind of tension then tighten the jam nut.

gwhammy 01-27-2012 04:11 PM

Does it have the afc foot in it. Almost sounds like a gutted afc also. Granted I have stock 180 injectors but the 215 pump is maxed out on stock dv's. I did have the stock turbo on but I could completely control smoke and power with the afc. I would take the afc off and look at the foot, make sure someone didn't cut it off. Maybe tighten up the spring and set it at the rearmost position and make sure the spring has some tension on it.

Most of these I've been around you can set fuel back enough to make them a pig even with a maxed out pump.

Gunmetal 01-27-2012 06:02 PM

Install a fuel plate.. I'd go #10
5.9L Dodge Cummins Diesel Fuel Torque Plate #10 10 | eBay

It comes with a fitting that will increase boost.
Check all of your boots, make sure they are in good condition, sounds like you have a boost leak.

harry22 01-28-2012 08:25 AM

I'll play with the smoke screw after work today. No one around here has the socket for the dv's, where can i pick one up? The air to air boots have been upgraded to blue silicone boots and everything seems tight with no leak to be found. This is my first diesel so i am a little apprehensive to tear into the pump. i'll post tonight and let ya guys know how far i go and what i find out. Thanks for the pointer and all the help!

turbo2332 01-28-2012 08:29 AM

bout any diesel place on the webside. should be around $20 and dont be scared of DV's they are way easy to take out and replace and all you would need to do is take a look at 1! its easy

harry22 01-29-2012 05:26 PM

I took my air piping out to rebuild my vacuum pump. I noticed the boots and tube were oily. I removed the air filter and inlet tube to look at the turbo and found I could move the wheel In out and side to side. It doesnt hit the housing but it is wiggley. Could the turbo be on its way out and thats taking more to spool it?

turbo2332 01-30-2012 06:54 AM

wiggly is ok. up and down is ok but in and out isnt good. the oil from your engine will fill the journal bearing when driving and take the up/down slop out. its suppost to be like that, but the in and out means you will prolly need a turbo sooner than later. and still prolly not making a noticable difference in spool times. it will wheen it lets go though.

93ford 01-30-2012 07:59 AM

is your egt sensor pre or post turbo? makes a couple hundred degree difference. strange you put out so much smoke and yet your egts are so low..

check your timing since putting the injectors in? might be out of whack. or if the previous owner put them in ask him if they set the timing before or after installing the injectors.

harry22 01-30-2012 10:10 AM

The probe is pre turbo but i had to re wire the gauges. They were just jammed in between fuses and had bad grounds. I havent had a chance to run it since i did it because im waiting on vac pump parts. Im hoping that the previous owner didnt hurt the engine towing or rodding on it not knowing the egts....:argh: The engine doesnt knock or tick though. Thinking about having the compression checked. Would you guys have it done, or am i worrying to much? After the vac pump parts come in i'll get it together and turn the smoke screw out like turbo 2332 said.

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Im just guessing but i think the timing and injectors were done at the same time.

harry22 02-07-2012 08:21 AM

Well guys i got the vac pump back and started playing. I removed all the boots to check for cracks, tried to look at the intercooler for cracks and found nothing. I put it back together with a new air filter and ran it. I dont know if the filter made the difference or if i had a loose clamp but it builds boost around 1300-1500rpm now. Way more fun to drive in town and now the turbo SCREAMS. Smoke is easyer to control in town to after playing with the pump. Now the only problem i have left is finding out where my coolant is going...:argh:


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