Dodge Cummins Diesel Forum banner
  • Hey everyone! Enter your ride HERE to be a part of September's Cummins of the Month Challenge!
1 - 20 of 24 Posts

·
Registered
Joined
·
10,780 Posts
Discussion Starter · #1 ·
Well, again going back to the never ending questions...

Going to order up some more goodies for the truck this week. Have the 5" superlift on the way and now i want to put a little more power behind the 36s im putting on it (for now!)

Along with some 100hp+ injectors (still deciding) and DVs I was looking at picking up a Super B special (P#1045120)

Anyone run one of these for a street/4x4 app?

I figured i could run this super b special for a while and when i get bored i can upgrade to twins (and keep that super b)


Anyone have a better idea?
 

·
Tech Specialist
Joined
·
2,034 Posts
What gears do you plan on? 3.55s, 36s, and a big laggy turbo aren't going to be fun. It might make good power once spooled but it won't spool down low where you're already at a disadvantage.

And twins using a 64/71-14 would likely use something similar to an s480 underneath and will spool slow and not work very well for less than say 650hp
 

·
Registered
Joined
·
314 Posts
Super B would be ok as a top turbo but not a super B special. Way too big for a daily driver.
 

·
Registered
Joined
·
10,780 Posts
Discussion Starter · #5 · (Edited)
well WTF then...!!

I had read that the thing spooled decent...

Anyways, im planning on leaving the stock 410s in there, i think even with the 36s first gear will still be a little low yet. With my 33s i have on there now, first gear is useless unless im pulling the gooseneck (which it wont be doing after i put the lift/tires on it)

So i guess maybe a regular super b for now, then use it with an upgrade to twins later on down the line?

Its kind of hard to size up a turbo when i dont even know where im going to be sitting as far as power goes...

I also forgot to mention in the first post, i will be bumping the timing up a bit when i do the injectors/turbo.
 

·
Tech Specialist
Joined
·
2,034 Posts
4.10s would probably be alright. It spools good for what it it but its a large turbo, theres just no way around it.

When you go to twins they spool slower than using the secondary turbo alone, but faster then using the primary alone. So for example, in twins the special would spool more like a sps66 or silverbullet

I agree picking a turbo for a daily driver sucks. It would make a decent daily driver as long as you don't expect it to spool untill late in the rpms and with more throttle than the stocker obviously. For some reason people expect an aftermarket turbo to support an extra 500hp and spool better than stock :coocoo
 

·
Tech Specialist
Joined
·
2,034 Posts
Delivery valves seem to aid in spooling turbos, although LCs are just no good on a DD, but anything with a shoulder might help.

You might be happy with some 435s. You can set them to a slightly higher pop-off pressure to improve drivability/smoke control. Then If you want more out of them you could reset the pop-off to get more flow out of them. They are about the orifice size of a DDP4 but not AFMd. The DDP4s would run clean and make good power without messing with but cost more.
 

·
Tech Specialist
Joined
·
2,458 Posts
That statement is SOOO true. Reason why I chose the Silver Bullet on my truck? ... Im shooting for over 600 horsepower ... and the truck is NOT a daily driver & I wanted to stick with a single.

Kind of a no brianer for me :T:
 

·
Registered
Joined
·
10,780 Posts
Discussion Starter · #9 ·
Well, unless i come across another truck i do have to keep this thing drivable on the street!

I was on the edge about looking for DVs, it seems like 50% of people say not to bother and the other half think they are the cats azz..

Not sure where im going for injectors yet, i want something fairly big (may as well since im buying a turbo anyways) and smoke isnt a big issue. No emissions testing or any of that BS up here, i actually think the cops get a kick out of it when i black out a street :D

I was thinking maybe getting those cheapo pensacola diesel injectors, for the price, if they last a year they have payed for themselves and by then i would probably be bored with the truck and ready for more power!

So the regular super B will do the trick for now? Or is their something out there a little better that would also be good for use in a twin setup?
 

·
Tech Specialist
Joined
·
2,034 Posts
I've heard some very good things about the silver bullet. I'm not totally sold on the turbine wheel design/size, but it seems to work well for some people. I think once you get to the level of getting a turbo that big you know what to expect :SMART:
 

·
Tech Specialist
Joined
·
2,034 Posts
An s300G (regular super B) would be good for what you have now, but add some more fuel and some rpm and you'll quickly grow out of it.

I would think a 62/65 combo would work good as a DD and towing single, and would work fine as a secondary with some more fuel.

the 57/65/14 is good for a cool 425hp and works good as a DD for up to 450hp (assuming you don't use all that all the time) and the 62/65 is comfortable at a cool 450 to a warmer 500hp. Go up to a 71mm turbine wheel and you'll be cool enough for another 50hp range to make it 500-550. The bigger the single the slower it spools and the worse it is for a daily driven set of twins.

Its your desicion if you can deal with slow spool and needing 1800rpm minimum to tow.
 

·
Registered
Joined
·
10,780 Posts
Discussion Starter · #12 ·
Well, like i said a few posts back once i start playing around with the truck the hitch will be coming out. No more heavy towing for this old girl!

Its going to just be a daily driver and something to go bury in the mud pits...

So basically, their is no point in getting the super b. im not too worried about it spooling a little slower, heck its already too slow for me :p

Any ideas what i would be putting down with +100hp injectors, 0 plate full forward, 191s and bumped timing?
 

·
Tech Specialist
Joined
·
2,034 Posts
The beauty of the s300 phenomenon is that they can be upgraded for a couple hundred bucks as need be.

Stock turbo? oh, I don't know say 375. Add suficient air and some rpm and you'd be looking at 500 with lots of tuning, but 450-475
 

·
Registered
Joined
·
1,385 Posts
I had the super b special with 3in and 35s and really didnt have a problem spooling it. At about 8-10psi its starting to lite. I think you will be ok. Only reason I got rid of it was for more air on the strip and thats about the only reason, great turbo.
 

·
Tech Specialist
Joined
·
2,034 Posts
rpm please?

Much more helpful than a psi when it starts to light.

And what gears? Auto or manual?
 

·
Tech Specialist
Joined
·
2,458 Posts
I've heard some very good things about the silver bullet. I'm not totally sold on the turbine wheel design/size, but it seems to work well for some people. I think once you get to the level of getting a turbo that big you know what to expect :SMART:

:lol3: ... I did this build to break over 600 hp ... not be a daily driver!! ... Even though it will be a street truck ... she only comes out to play! :peelout
 

·
Registered
Joined
·
10,780 Posts
Discussion Starter · #17 ·
so a super b special may still be a feasable option...?
 

·
Registered
Joined
·
10,780 Posts
Discussion Starter · #19 ·
ok, so it would be a decent hairdrier to use as a single but basically useless in a twin setup unless i drive it 'hammer down' all over the place!.


Am i going to be able to find any turbo that wont hold me back too much on a single setup, but still be usable for twins?
 

·
Tech Specialist
Joined
·
2,034 Posts
With some spray that won't be a problem ............


Sizing problems are just part of living with turbos. There are no one size fits all turbos. But a 62/71 might be decent. Decide whats more important to you, spool or airflow
 
1 - 20 of 24 Posts
Top