Building my truck. Would appreciate some guidance!

[jaredb900rr]

Looks good! You said you "brought" the motor to I.I. for the build, do you live close to them? They're just about 15 minutes from me. I had Wide Open do my build, and I was amazed at how much smoother the truck ran after everything was balanced.

As for the twins recommendations, what do you use the truck for? What elevation do you live at? I'm at 4,000ft elevation, and I ran a 62/71/13SS over an S474 with Flux 2 sticks and was very happy with the all-around street manners, and it made 720hp with everything turned up. I've since upgraded to an 80mm wheel on the primary, and got the wastegate fix on my SS housing, and it still spools decent (positive boost by 1400-1500 RPMs), I just have to keep an eye on the smoke with my 200hp sticks.

Jared

[-Boostjunky-]

Originally Posted by jaredb900rr

Looks good! You said you "brought" the motor to I.I. for the build, do you live close to them? They're just about 15 minutes from me. I had Wide Open do my build, and I was amazed at how much smoother the truck ran after everything was balanced.

As for the twins recommendations, what do you use the truck for? What elevation do you live at? I'm at 4,000ft elevation, and I ran a 62/71/13SS over an S474 with Flux 2 sticks and was very happy with the all-around street manners, and it made 720hp with everything turned up. I've since upgraded to an 80mm wheel on the primary, and got the wastegate fix on my SS housing, and it still spools decent (positive boost by 1400-1500 RPMs), I just have to keep an eye on the smoke with my 200hp sticks.

Jared

I live out in West Valley, Utah. So, we're not all too far away from each other.

I primarily use the truck as a daily, with only occasional towing, and a fun run here and there. I didn't want to get too crazy with the fuel, since I am not a huge fan of smoking out every intersection that I go through.

I am leaning toward the 76, because I feel it is a good compromise between an 80 and the 74. A 74 would do everything I ever wanted, I'm sure. But I always have the tendency to want more later on. But again, I don't want to be smoking out every intersection I go through.

[-Boostjunky-]

UPDATE:

Finished the truck, today! Initial impressions are that it runs GREAT! A lot smoother than stock. I'm very impressed. Very happy with the way the lift pump system worked out. I'm limited on time right now, so I won't go into detail, just yet. Maybe a bit later tonight, I may find the time to give a full run down.

Anyway, I appreciate all the advice I got from you folks, on here! Thanks!

[jaredb900rr]

So, what turbo setup did you go with? Of course it starts raining today, so really getting to test out the power will have to wait, I guess. Congrats on the build, enjoy that beast!

[-Boostjunky-]

The setup consists of the following:

Block/Internal modifications
*Cylinders Machined .020" over w/use of deckplate.
*Crankshaft balanced and polished.
*Mains line honed.
*Mains re-tapped to 14mm for studs and girdle.
*12valve rods - shot peened, and polished.
*Taper-top pistons - ceramic coated + poly-moly skirt coating.
*ARP 625+ head studs.
*Diesel Pros Stage 1 camshaft.
*Stronger pushrods (matched to cam + 4k RPM use).
*110# dual valve springs (matched to cam + 4K RPM use).
*Electric Water pump - to avoid blowing freeze plugs at high RPM.

Fuel system modifications
*DragonFire CP3 (85% more flow over stock).
*125 HP (38 LPM) injector nozzles.
*Raptor 150gph pump.
*Vulcan DrawStraw V pick-up.
*-8 feed line w/BF1212 F/W separator, and CAT 1R 0750 filter.

Aspiration modifications
*PDI 2-piece exhaust manifold (collector area port matched to gasket, along with turbine housing port matched to gasket).
*Still running the single S364 until I can get some funds together for a compound setup.

I believe that covers it! I am LOVING this truck, again! I can't wait to get some miles on her, and then really open it up! I got the Smarty TNT/R tune (4k rpm tune), and I'm just waiting to get some miles on it before I load that in there!

[-Boostjunky-]

Late update from 10/22/09 (I put this info in another thread, but forgot to include it in this one):

I ended up not being able to get the twins I wanted due to some budgeting cuts...So I opted to get a larger single since my S364 had a lot of shaft play, and the exhaust wheel was making contact with the housing! Bad ju-ju! I got the Silver Bullet to hold me over until I can afford to run a set of twins somewhere down the line.

I took the truck to the dyno today, also, and it put down 637 whp, and approx. 1400 lbs/ft torque (the dyno tachometer wasn't working, so I had to hand calculate it out). These numbers are UNCORRECTED @4500 ft elevation. The SAE corrected numbers were 732 whp and approx. 1600 lbs/ft torque.

Thanks again for all the advice!

[Smokem]

Originally Posted by -Boostjunky-

*Taper-top pistons - ceramic coated + poly-moly skirt coating.

Your truck is an '05, where the nozzles changed to match the piston?

Originally Posted by -Boostjunky-

*125 HP (38 LPM) injector nozzles.

Sure that isn't 3.8LPM?

[-Boostjunky-]

Originally Posted by Smokem

Your truck is an '05, where the nozzles changed to match the piston?



Sure that isn't 3.8LPM?

The bowl of the piston remained unchanged. The taper, I'm assuming, is at the crown of the piston. I asked a little about it's purpose and was told it's primarily to avoid the issues that surround a "heat swollen" piston, and the resulting binding that can occur.

And, unless I'm reading things wrong, or smoking some good crack, the invoice says 38 LPM (125HP injectors).

[Smokem]

Originally Posted by -Boostjunky-

The bowl of the piston remained unchanged. The taper, I'm assuming, is at the crown of the piston. I asked a little about it's purpose and was told it's primarily to avoid the issues that surround a "heat swollen" piston, and the resulting binding that can occur.

And, unless I'm reading things wrong, or smoking some good crack, the invoice says 38 LPM (125HP injectors).

What model piston was used? The '03-04 has a tapered edge on the bowl in stock form. Do you actually believe that 38 liters of fluid can be passed through the nozzle in one minute?

[-Boostjunky-]

Originally Posted by Smokem

What model piston was used? The '03-04 has a tapered edge on the bowl in stock form. Do you actually believe that 38 liters of fluid can be passed through the nozzle in one minute?

The 04.5+ model pistons were used.

And to be quite honest with you, I believe that the injectors were flow tested, and given a rating. That rating happens to be 38 LPM. Now, whether they used #2 diesel fuel for the testing or not, and what PSI they were tested at is beyond me.

Understand, I don't claim these flow numbers as if I verified them myself. I am simply passing along the info that was given to me. I checked around, and it seems that the 38LPM rating can't be too far off considering some of the other injectors out there.

Here are a few examples of what I mean:
Competition Diesel.Com - Bringing The BEST Together - View Single Post - Wicked Diesels VS Industrial
Competition Diesel.Com - Bringing The BEST Together - View Single Post - DDP injectors
Competition Diesel.Com - Bringing The BEST Together - View Single Post - what injector for a silver bullet?

And then there's this:


So, I don't know. I'm no expert when it comes to rating injectors, so I usually just take the manufacturer's word for it. Maybe you can tell me?!?!

Hell, for all I know, maybe they are testing the LPM flow using compressed air! I have no idea what they're using to flow test them!

[Smokem]

Originally Posted by -Boostjunky-

The 04.5+ model pistons were used.

Justified.

Originally Posted by -Boostjunky-

Hell, for all I know, maybe they are testing the LPM flow using compressed air!

Finally, someone gets it. A 1% variance in flow is much different between 38LPM and 3.8LPM.

[-Boostjunky-]

Originally Posted by Smokem

Justified.



Finally, someone gets it. A 1% variance in flow is much different between 38LPM and 3.8LPM.

Hahahaha! Trust me, I'm not one to get cocky when it comes to things that I don't know of with an absolute certainty. And judging by the picture in your avatar and your sig quote, I would assume you are highly edumacated with a background in engineering. So, who am I to question your knowledge?

[Smokem]

Just for comparison, a stock 305hp nozzle 8x0.006" flows 1.080LPM and a stock 325hp nozzle 5x0.008" flows 1.114LPM.