Hey guys I'm new to the diesel section but I was curios about if anyone's stacked an a5k on a sb66 and if that would be good combo for a daily driver/race truck and if not what would be good combo by the way its a first gen 4x4

 

first gen as in 12v VE pump?

umm no...

that engine would never fuel it. It would lag like a ridiculously slow pig and huff and puff smoke and never get on top of the turbos...

also ATS turbos are ridiculously over priced and not worth the money at all.

go for something like a hx35w over ht3b or hx35w over S472

they will spool up nice and quick and give one hell of a power band

 

Ok thanks and we plan to p pump it and do couple other things before twins if we do them its just an option were trying to get some feedback on

 

My 12mm VE fuels plenty to light my hx35/BHT3B compound setup. Jigabop can testify to that. With a good clutch I can get rubber in 4th gear (on 35's with 3.54 gears) And VE pumps have dynamic timing so they are much more pleasant for daily duty than a P-pump.

 

P-pump is another story...but ask yourself this:

what are your plans with the truck, and what kind of power are you looking for?

do you tow, daily drive, sometimes drive?

I ask because even with a P-pump, unless you have a common rail truck, those twins are too big for the street. you will never spool them in the normal rpm ranges and just smoke out every road you drive on....twins that size on a mechanical injection truck = a trailer queen for competition only and 800hp+

 

It will be a dd with ocasional strip run

 

i would run smaller twins then...

biggest I would go for a street truck is a 362 over 475...

anything else is just going to be too laggy and smokey for street use.

now you could go bigger and run a supercharger with the twins which would eliminate the turbo lag and excess smoke...but those setups are not cheap by any means...

 

Ok thanks for the iinput guys

 

If you want nice smooth drivable power keep the VE. If you are dead set on more than about 450hp on fuel go p-pump. It will not be nearly as pleasent on the street, but the sheer fuel flow will be there. With my current setup I am estimating 350hp and 1000ft-lbs. And it is so easy to drive I let my fiance borrow and drive it all the time (remember its a 5spd). A 20 year old mechanically injected diesel that is this powerful and yet still easy to drive is pretty impressive.

 

350hp and 1000ft-lbs? No. At 350hp you're scratching 700ft-lbs, maybe a smidge more.

A 66 and a 72 are not a good combo, regardless of truck and injection pump. Your primary is too small for the secondary, or the secondary is too big for the primary. The A5k is a decent primary, works very well with a stock CR HE351. I'd be looking at a smaller secondary and gate around it, or ball bearing.