ok so if they say that the HO's respond better to injectors then fueling boxes, what if i ran twins, mach 7's, and the smarty? It may or may not work, whats yall's opinions?? what hp numbers will this put down?

 

Mach 7's are a lot of injector...I really doubt a HO's little plungers could keep up with them! A Mach 6 is even a bit large for them, but they run really well!

The thing is, with Mach 6's, and a Smarty and Twins, you'll be ~500hp...depending on that HO pump again And you'll have very little adjustability, except for the Smarty! That's a lot of HP for towing...even with twins (and the loads you pull)

Maybe someone else will have a better suggestion for you...but from someone who's tried doing what you're doing (towing heavy with HP) you need to have something that you can be ~300-350HP for heat issues! It's not fun watching the Pyro for 6hrs out on the road!

IMHO,
Chris

 

Thanks chris


how about mach 5's, twins, smarty, and water/meth? will that keep it cool while towing? Then when my vp44 goes out, i can upgrade to the hrvp44. and maybe a tst pm3? how about that?

 

Then you talking over 600 hp...

 

Another question is what size twins?? Good spooling, or good cooling! My HX40/B2 spooled well enough at 320hp I could tow OK, but I wasn't as happy as I was with the BD Twins at the same power! They cooled better on the top end though!

If it was me, I'd go with Mach 4's, (maybe 4.5's or 4.8's, Don would shoot you straight), Smarty, PM3, and a set of either BD Twins, or an HX35/B2 combo! I am really impressed with the BD's cooling ability, especially for how good they spool! RJohnson dynoed at 572 with a single, then went to the BD Twins...will not go over 1350* IIRC!! He has the combo I mentioned above...and a STRONG running truck

Remember, IMHO,
12v Chris

 

i was planning on the bd twins. id rather spend the few extra $$$ and not have to mess with building my own. would the bd's be the right ones to go with?

 

I think so...for towing, and playing they are a really good comprimise! You might PM RJohnson, or wait and see if he chimes in here...but like I said before, he's near or above 600hp, and it runs GOOD

Chris

 

Thanks Chris! Did not know you were that impressed. I figured after riding in Brandons truck... anything else would seem tame

"black Diesel02' - The BD's are exceptional for 99% of your time behind the wheel. They may flatten out, just a bit on the top end, compared to bigger twins, but since I'm more interested in daily driving and spoolup than I am in max acceleration from 85 to 120 mph.... they are right for me.

I'm Dynoing this weekend.... will report results.

TigerRag has an HO w/ Mach 6's and BD twins, Smarty,TST. Says the 6's made a big difference and it's easy to tow with and very drivable. Don't know if he has dynoed yet with the 6's?? He came from BD 155 hp injectors which I suspect are not really 155 hp??

I know there is a point of no return for the HO's. I've heard Mach 7's don't make any more HP than 6's. Will 6's make more that 4's on an HO... I don't know, but I doubt very much on top of a TST/Smarty combo?

RJ

 

Never rode in Brandon's old truck...but knowing how my old chargers spooled, it had to be a wild Edit ride when they did!! The fact that they (the BD's) cool the way they do on your truck is what impressed me! Brandon's 40/B2 cooled better, but he also had a ported head and a Cam...along with more power

BD02, I wish you were closer to RJ...one ride in that truck and you'd be sold on that combo On an HO, though, I'd say go a bit larger on the sticks...maybe 4.8's (since I think I've heard Don say they work VERY well on HO's)

I've got a buddy thinking about the very same thing...except he's sticking with a single charger, Garrett BB maybe
Chris

 

so could i do a tst pm3, mach 4.8, bd twins, air intake, downpipe, studs, and orings for 6 grand? is that all i need?

 

An HO truck makes the same HP using Mach 4's or Mach 6's if you are running a fueling box.

Doug Smith

 

But adding a HRVP would pick up more power with 6's than 4's, right??? Anyway, with the combo BD02 listed above, he'd be at a strong 575, and a HRVP would make it even more fun

BTW, the BD Twins come with an air intake Scratch that off the list...and I can't think of anything else you'll need right now!

Chris

 

Adding the HRVP will give him a lot more HP over an ETH pump. But, our testing/dynoing with guys running a fueling box with a HRVP has shown that there is no power gain to going to Mach 6's over the 4's..... I would expect him to be around 525HP due to his ETH pump. The ETH pump is really a limiting factor on the HO motor.

Doug

 

so mach 4's, bd twins, o-rings, studs, tst pm3, and a downpipe? That dosnt sound so hard. if ya add it up thats right at 6 thousand isnt it?

 

If you decide to O-ring your head be sure and have it pressure checked to ensure it is still good. Also you need to deck the head to ensure it is flat..... Then while you are there I would do a valve job, new seals, and plan on new guides (the 24v guides wear very fast). Typically a rebuilt head in this manner runs around $1100-$1200. Then you have the studs, HG, injectors, twins, and TST, total I would estimate around closer to $8000 when all said and done.