94 Dually 454 no power

[CKTA]

Heads, intake, cam and full exhaust really wake them up. From the factory they can't breath.

[deuce_454]

Originally Posted by CKTA

Heads, intake, cam and full exhaust really wake them up. From the factory they can't breath.

true.. that would make more power... but likely youd still need to wind it to 3500 going up hill.... a single turbo would increase the low end torque under load.. if you get one for that purpose... but nobody wants to turn a reliable shop hauler into some project that takes time, costs money and might explode going up the next hill...

if the truck wasnt a money maker and you wanted to play arround with it i would recomend a smallish single turbo... nothing fancy in the plumbing dept... just pipe from the cast manifolds, and blow thru a carb

you could easily double your tourque from 2000 rpm, and who cares about lag on a tow truck?

[deuce_454]

a single masterpower t70 should spool well before 2000 rpm on a 454... and you coulde have it all done for 1000 bucks in parts if you do everything in mild steel exhaust piping... and if you have e85 in your area you could even do it without worrying about messing with the ignition

[TurboNova]

The problem you really have is the stock ECU on those trucks, they really suck. You have to burn chips, TBI with only 2 injectors.

Edelbrock had a EFI intake and 8 injector upgrade that would really make a difference.

I had a 92 and burned a ton of chips until I was happy with it, we put in a 496 stroker, ported the heads a little, cam, steel crank and rods.

The total timing on those trucks is someting like 22-25 degrees at WOT, timing really helps them, but the main problem is just getting enough fuel into them. We put a bigger pump and raised the fuel pressure on mine as a band aid instead of putting on the intake.

The narrow band O2 sensor really does not help either.

[deuce_454]

i agree.. hence my initial suggestion of a carb.. blow thru or otherwise.. there are guys that can make it work with a microsquirt ecu... but if you havent played with it before its a steep learning curve

[GregWeld]

Chris --

Jack the radiator cap up -- drive a new truck under it... make sure it's a diesel version.

[youthpastor]

Originally Posted by GregWeld

Chris --

Jack the radiator cap up -- drive a new truck under it... make sure it's a diesel version.

I know, I know...but I would like to make it work for a few years before I lay the cash out, how 'bout an 8.1 swap? I hear it is pretty basic- just wonder if the 4L80E would work. I remember back in the day alot of guys were putting better cams, heads and carbs to wake them up.

timing is really horrible 22?

[mike renick]

there are sevral things u can do . starting with uping the fuel pressure to the tbi .my 93 now has a 505 in it with a reprogramed chip with the stock tbi i can pull hills at 70 with a 28ft car trailer. in 4 th gear if i chose too. the other is the new fast ez efi its a self programeing fuel injection unit . i have spent alot of time research and money . trying to make my dually do what i wanted to . the cheapest and easyest is the efi unit from fast .i also added a cam .
depends on how much money u wanna spend. im curently working on a bank to bank injection for mine thats more coast efective .if ur not in a huge hurry
ill let u know how it works . if you intrested let me know .or if theres anny thing i can do to help let me know

[81s]

If ur not gonna do a swap have u looked at like a 177 blower. Simple packaging. Quick and easy. Ur compression is already right for it. Should fit under the hood. Just a thought