Where do yall make power

MarkBroviak

DMax Junkie
Vendor/Sponsor
May 25, 2008
2,131
460
83
Danville Indiana
Ah, I see. Still requires compressor wheel protrusion?

Yes sir, it is straight bore protruding because it is a true 2.5 compressor wheel with no map groove and a velocity stack built into it. Not great for driving around but works great when you are only concerned with all out performance. My 72mm vgt is the same way since it was built for twinned application, no need for a map groove when it is always pressurized!
 

Dave c

New member
Jul 7, 2013
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I still believe turbo has about the biggest difference on peak power rpm, but my cousin dynoed his truck with s468 b4 and after building engine, cam does shift the powerband around but has minimal effect on power output...



The "Right" camshaft makes a huge diffference in power and will move the power band... I know of some making peak power above 4200 with LB7 and above 5000 with LBZ.

Just ask some of the heavy hitters in pullin or drag.
 

duramaxsandwich

New member
Mar 30, 2009
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The "Right" camshaft makes a huge diffference in power and will move the power band... I know of some making peak power above 4200 with LB7 and above 5000 with LBZ.

Just ask some of the heavy hitters in pullin or drag.

i believe the peak power at 4200 with an lb7 but what kind of turbo are they running on the lbz to peak at 5k? 4.1?
 

Yellow Jacket

WannaBe Sled Puller
Feb 11, 2009
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Waterloo, IA
The "Right" camshaft makes a huge diffference in power and will move the power band... I know of some making peak power above 4200 with LB7 and above 5000 with LBZ.

I do agree a little, what I meant to say was it's a lot easier to bolt on 150 HP with a turbo and shift powerband up a little, than have a smaller sized turbo and shift power curve up in rpm and expect power gain also...

Just ask some of the heavy hitters in pullin or drag.

i believe the peak power at 4200 with an lb7 but what kind of turbo are they running on the lbz to peak at 5k? 4.1?

Banks does it , 2 tiny turbos but lots of spray, makes peak power at 5200 in sidewinder DMAX, can can move power curve a lot, but not gonna gain big HP numbers ...

Turbos not going to make much rpm changes, the right camshaft will. Its all about airflow, and valve timing events.

One turbo to another can drastically change peak power location... In the pulling world everyone wants big HP and big torque, that's the cam I want. The sidewinder makes roughly 1200 HP and a little more torque 1500??? Kusilek made 1460 hp 2 years ago and over 2500 ft lbs...

Kinda disagree on this one... Turbine size and housing a/r would be the quickest and most easily experimented way to shift power curves.

I agree its an easy way to experiment and see the difference it makes
 

duramaxsandwich

New member
Mar 30, 2009
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i thought he wanted to know how to move his power curve up on a sled truck? i dont really believe what some puts in a magazine about twin turbos and nox relates to his question.

as long as he has a decent cam in his motor the easiest way to move up his power curve and make more hp is a bigger turbo:thumb:
 

Yellow Jacket

WannaBe Sled Puller
Feb 11, 2009
917
0
16
Waterloo, IA
i thought he wanted to know how to move his power curve up on a sled truck? i dont really believe what some puts in a magazine about twin turbos and nox relates to his question.

as long as he has a decent cam in his motor the easiest way to move up his power curve and make more hp is a bigger turbo:thumb:


OK, to put that in a pulling truck perspective... Call the owner of Megatron 2.6 dodge.... He tried a really aggressive cam this year and I will guarantee it made good numbers for a 2.6 truck at a higher rpm, but with his gearing and setup he couldn't stay on the charger at the big end when the engine pulled down, or wouldn't stay above charger when he let clutch out.

There is 2 really different theories when you talk to different tractor pullers, if you can get any info... Lots of people are going backwards from old theory in pulling. Big cubes and big gears and lug the piss out of them on the big end and use the torque... Others are under cubed with short stroke big bore and wing the piss out of them, that engine will make more HP, but won't lug or tends to "buzz" the tires... Depends where and how u pull and how your setup works.

Talk to the semi pullers also, look at how well Walker's single turbo prostock semis do against 4 turbo semi's with 500+ more HP. They win points, weird????? But on the loose tracks where the multicharger trucks can gear up and get out of the hole they can beat up the singles pretty bad... But a damn good clay NTPA track the Walker's do very well because their trucks are setup and work well on a good track and sled.