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The DB2 pump is not a good pump for all out fuel, it just doesnt have the plunger volume to supply the fuel reliably in the amount of time given during the injection cycle... The DB4 is the only pump worth considering if you want real fuel reliably... I started with a DB2, but for the cost it...

All the way to redline, that's where the EDM work shines... I'm sure justin will post the exact specs if his particular pump... EDIT: phone delay.... :D

Simple, you dont want us to show up and show you up, prove your all a bunch of *********** of a few that like to make unsubstantiated claims, dont bring us up. You just got proved you know absolutely nothing again... As long as you want be a bunch of *********, we'll be sure to come in here and...

First off, I want to thank the mods for being reasonable, this is an A+ example of how forums should be moderated, there are plenty of examples out there of poor moderation practice we have witnessed first hand, and for the most part, has caused so much of the BS weve "been at the heart of"...

Go back to page 14... And see who is belittling who... Your being put in your place, and now you whine about it??? Get real and grow up... Post some proof, and be an adult.

Again, you spout and have NO proof... We know that the 6.2/5 chevys blow bottom ends out worse than a taco bell night, thats a fact, however, you have no proof your IP puts out anything more than stock. Get your pump on a bench, get your truck on a dyno, and then talk about what your truck...

Its a hell of a lot easier to get power out of a cummins than it is an IDI... Not one aspect of a 4bt build proves a damn thing about a DB pump build...

Again, and the proof is where??? Your dillusional...

For me... Charge pressure at full fuel and load at max pump speeds ~4k RPM.... is 125psi.... Its a linear rate.... 2k is ~60psi.... TP is a positive displacement pump, so is the pumping chamber (assuming WOT)... So flow/pressure is linear to RPM... The only variable is where the reg is set, and...

My pump is dead stock... So: Timing@Full fuel, full load, 2500-3k - 5.5* Charge PSI @idle - 10psi And base timing at the pump is 8* currently (Ferret meter), but made the most power at 6*... Anythng else??

Simple... With a .31 pump.... You could just take out the leaf spring and have a 200cc pump (obviously with TP pressure mods)... however, you'd grenade it in no time, there would be NO timing adjustment, and you would HAVE to get it right on the money the first time... Or you break the shaft (or...

C'mon man... Your better than that. Im not asking you to tell us anything, Im asking you to use your knowledge to ask us questions to see what we do know... Thats all... Nothing catchy, im just trying to clear the air here.... And again, its pretty simple to prove your not... Just give us...

Again... You have yet to prove that in ANY sort of way... Please, at least if your going to make things up... be part of the conversation...The thing is, is I KNOW how to get an extra 100+ cc's out of the pumps... But it wouldnt be reliable... Please, since you cant answer my questions, ask some...

Then 6.2, maybe you can answer my questions above, nothing tricky, pretty simple. And if you have any yourself, please ask, because ill be glad to answer...

Justin, we have no idea how much time an money these guys have into this stuff... It might be more than we wanna know... :D

You do realize that we have the same porting in our pumps right? And cam ring Voodoo? Not so much, its not rocket science... you have a major/minor and area under the curve... By changing the area under the curve, you control the injection event, and pressure... Its pretty simple... I was just...

Then by all means, please enlighten me.....

He'll get around to an answer, I trust he is after one...:D

Whats the major and minor diameter of the Cam ring profile CF? Gotta know this to know your stroke.... How about port cross sections... Or percentage of duration per port?? I can start rattling off numbers if youd like.... Here, Ill give you an easy one... Whats the fill duration degree on the...

Cmon, thats an easy one... Fill port duration and cross section... And if you hate math, you have no business in the engineering dept...