Single numbers vs compound dyno numbers

Bigsexy · Oct 22, 2015

Who all has dynoed with singles and compounds? What makes more power single or compounds?

BOSS450 · Oct 22, 2015

Compounds will make more. Period.

Jonnydime · Oct 22, 2015

BOSS450 said:
Compounds will make more. Period.

Umm... No. A single will always make more power and compounds will always be more street friendly.

johnp115 · Oct 22, 2015

This is insanely vague and open ended. lol

madman1234509 · Oct 22, 2015

Well..... not exactly. A single will make more power, vs a compound setup with a comparable size atmosphere. This issue is, at some point the truck is not going to be able to spool a single charger anymore, at least not well. People drive 75 or 76mm turbos, but you don't see many go bigger due to the lag. A 75mm or 76mm turbo typically will net you 900-1000hp depending on supporting modifications. Above that you might as well go to a compound set up due to the drive ability and power potential. This is all speaking in terms of fuel only. Obviously with nitrous a big single will make over 1000hp

madman1234509 · Oct 22, 2015

johnp115 said:
This is insanely vague and open ended. lol

I agree with this as well.... And it really doesn't take much looking around on this page to find results.

powerstroked08 · Oct 22, 2015

Compounds make a broader power curve. If sized properly.

6.4 Stroker · Oct 23, 2015

powerstroked08 said:
Compounds make a broader power curve. If sized properly.

Agreed, personally I'd rather have a broader curve.
Almost always cost more though.

BOSS450 · Oct 23, 2015

Jonnydime said:
Umm... No. A single will always make more power and compounds will always be more street friendly.

What's the highest horsepower fuel only fords? They run a single or compounds?

ckrueg · Oct 23, 2015

I think king Kong made like 1450 with compounds

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Jonnydime · Oct 23, 2015

This is dumb.

BOSS450 · Oct 23, 2015

ckrueg said:
I think king Kong made like 1450 with compounds

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We are talking fuel only

blk350on20s · Oct 23, 2015

Mine made 1112 fuel only

drunk on diesel · Oct 23, 2015

BOSS450 said:
What's the highest horsepower fuel only fords? They run a single or compounds?

what makes more power 71mm atmo or 71mm single?

BOSS450 · Oct 23, 2015

drunk on diesel said:
what makes more power 71mm atmo or 71mm single?

Single. I run a single 75 with 150s. But I'd have to have larger then an 80 to match what the top compounds make and I don't feel like burning down my converter every time I go to the line.

The question was single vs compounds dyno numbers. The fact though that a ford head does not have the airflow to light the size single that it would take to make that kind of power (unless it's a pull truck bringing the rpms down to spool.)

drunk on diesel · Oct 23, 2015

BOSS450 said:
Single

and the period becomes an ellipses...

getstroked27 · Oct 23, 2015

UGH LOL this is so open ended and never ending it is not even funny. factory style "drop in" compounds, or fabricated compounds? I Will play the devils advocate and go ahead and point out my good friend made 11xx on fuel with a single s588 on a built motor 5.9... but would he have made more with a properly sized HP turbo in a compound setup? probably not... considering my other good friends 5.9 with extremely similar mods did 1040 on fuel with a 464/588 setup. BUT, the compound truck drove much better on the street. There are benefits of both setups, in their given applications. at some point, a big single becomes too much for a street driven truck, and clearly, as shown by just about every high HP competition based truck, single turbos are not enough to make good power. you need the CFM of a massive atmospheric charger, paired with the STreet manners of the HP turbo. BUT, all of the 1500+ HP trucks out here in my neck of the woods have stupid big compounds. i mean, the smaller setups run about 76MM/106MM. and goes up to about 100/118. theres always going to be a distinct advantage/disadvantage for any turbo setup, you just have to figure out what your goals are to determine what suits you best, every truck, and driver, have a different preferred setup that works best for them. so yeah.