Add to Quad Box

[EAMan]

Hey, I have a 2003 so model with a race quad box. Can I stack it with anything or is this a box that you just can't stack? One more question... Is Quad going to offer a box with more then 140hp? Thanks for the help.

 

[Hokey]

I have seen where some are stacking with a Van Aeken c3. 2 duration box, but only on the low setting due to egt.

 

[Matt400]

I too am looking at a stack for that box. The VA C3. 2 or the new BD duration only boxes look good.

 

[Hokey]

I too am looking at a stack for that box. The VA C3. 2 or the new BD duration only boxes look good.

Matt400- is that new BD box that ram x or whatever? is it a duration only box?That would make an intersting stack if it will.



Have you decided on a turbo yet? been researching turbos and following some posts. . thanks, hokey

 

[Matt400]

Matt400- is that new BD box that ram x or whatever? is it a duration only box?That would make an intersting stack if it will.

Yes, I contacted BD about it and they said its duration only.

Priced at $579 and they are on the shelf ready to go. 800-887-5030 is their number. I don't know if it will stack. The VA plugs into the ECM where the BD unit plugs into the injector harness.



I need to find someone with a C3. 2 who will trade for my C3. 1 that makes a great stack with the TST.

Have you decided on a turbo yet? been researching turbos and following some posts. . thanks, hokey

At this point I am looking real hard at the Jammer BB vs twins. I don't really need twins but was leaning that way to keep decent spool with the benefit of much lower EGT's towing.

I just don't want to sacrifice bottom end performance to gain on the top.

 

[JCleary]

I'd wait on that BD box. I saw a guy try one on his truck last weekend and it threw codes and made little power. Let 'em work the bugs out.

 

[bpenrod]

Mine Quad box stacks great with my VA duration box. It will get hot on the full setting with both boxes.

 

[Matt400]

bpenrod- how high of boost have you seen with your stack?

 

[bpenrod]

Around 46 or 48 #'s. My turbo is waste gated at 40 but with the stack turned all the way up it builds even after the waste gate opens. I just installed an AFE TT today and that made a world of difference. With the stock hoses and an Airaid tupe in place it would normally hit around 20 to 22 #'s under normal driving. Popped the AFE on and went for a ride and it shoots to 32 pounds with the boxes on 50 % and 60 hp. Little more whistle too!

 

[Matt400]

Interesting. . I am thinking the Quad 100hp and VA C3. 2 with the new Jammer BB would be a nice combo. Do you find any particular setting best for power and EGT control? By that I mean running VA at 50% and Quad 100% any better than VA 100% and Quad at 50%?

Thanks for sharing that info.

 

[AK RAM]

Mine Quad box stacks great with my VA duration box. It will get hot on the full setting with both boxes.

I wish I could go for a ride to see how the power felt. I bet that makes a really nice stack. One thing about the VA is it is a fairly dumb box. The Quad is stretching duration a little already from inside the ECM, but the VA doesn't know the difference and just stretches what it is given, so it is stretching an already slightly stretched injection event. You could end up with some serious power, TST like power, from that compounding effect and not even know it until you put it on a dyno. I bet that is sweet. I still have my VA on the bench and just might have to try that one day.



Also, the quad runs max available timing advance in all positions except for under certain conditions, so technically for the best stack, the Quad on 60 (where you get max timing, max duration, little bit of pressure), and the VA at 100%. I'm just guessing mind you, but I bet that would give you the best power to EGT ratio unless you have a good aftermarket turbo.

 

[Diesel Nut]

My VA C3. 2 is in the mail, as well as the clutch to hold on to it. I can't wait to see this turbo sing. With just the quad I get 36-37#, and I know the wastegate is set for full open around 40-45, so I should wind up right where I want to be. We'll see how it runs, then I'll order the dd2's, If I can . . .

 

[Matt400]

the quad runs max available timing advance in all positions except for under certain conditions

Didn't know that one. . where did you learn that? If thats true then I would guess a Quad 100hp box set on 30 may give an increase in MPG's for us retarded SO owners... that is if the SO timing is really retarded. Then again it may not be cuz I get 19+ daily driving.

 

[AK RAM]

Quad has posted that either here or somewhere else…. . don't remember. He does a lot of posting. I have also confirmed it with him through PMs. Timing adjustment is a bit trickier than that, but that is the basic principle. Anyway, I have talked to Quad about that stack and it is quite neat. If you want to know more, get a hold of quad. He seems to enjoy explaining things when he has time. If he feels you are asking for too much about how his box works, he may ask you to sign a non-disclosure agreement…. . and then tell you.

 

[AK RAM]

that is if the SO timing is really retarded.

First I have heard of that. I don't know for sure, but I would say it is not. The effects of retarded timing are not there, mainly higher EGTs. The added injection event on the 600s in effect retards their timing. That is partly why they get crappy mileage and why their EGTs run so much higher than ours. The SOs are the coolest running common rails and get outstanding mileage, so it doesn't add up. When you plug in a VA C3. 2 that stretches duration without timing advance, you are in effect retarding timing. That is why the VA runs so hot by itself. Any pressure box that provides timing advance would be a good stack with it. I would think the quad box would be best though with everything else it does helping out with making power. Again, all speculation.

 

[bpenrod]

Interesting. . I am thinking the Quad 100hp and VA C3. 2 with the new Jammer BB would be a nice combo. Do you find any particular setting best for power and EGT control? By that I mean running VA at 50% and Quad 100% any better than VA 100% and Quad at 50%?

Thanks for sharing that info.

Matt,

I keep the VA at 50% and th Quad box at 60 hp for daily driving, No EGT issues and great power. If I need the boost I turn the Quad box up. On a full run it still gets to about 1400* at redline in 5th with the VA at 100% and the Quad at 140HP. I have turned the VA all the way up and love the power but the EGT's max out before a full run. I have not yet had a chance to tow with it to see what sustained temps with a load will be like. I know running empty on my daily driving setting the EGT is around 625* with 7 or 8 #'s of boost at 75 mpg. Been driving 110 miles one way to work with almost all freeway this month. Getting 20 to 21 mpg witht he crusie set at 75.

 

[Diesel Nut]

I ran the VA and the Quad both at top level and pegged my 1600* egt gauge. Lots of smoke, 41 lbs boost and the egts just kept climbing. Strange thing, at the bottom its pretty cold, it seems above about 2200 or so the egts just start to skyrocket. Talked to BD and ordered an adjustable wastegate, gona try running about 45-46 lbs and see what changes. They seem to think it will help, and will take the wastegate back if it doesn't. Pretty good guys to work with. Today I will back the VA down and see how she runs. . . .