Silverado 100 Horsepower Performance gain on a budget

On this truck, the stock fuel system was used, no upgrades were added.

Those are good gains Lambo!

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Originally Posted by farmtruc

On this truck, the stock fuel system was used, no upgrades were added.

Those are good gains Lambo!

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:thumb: just need that live tune and some bigger injectors and im set. well until the 100 shot goes on :lol:

Allen,
How did you get that truck to hold the HP all the way up to 6500? I put down almost the same peak HP with 30 extra tourque but it drops major after 5800.. any ideas?

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Originally Posted by -HIC-

Allen,
How did you get that truck to hold the HP all the way up to 6500? I put down almost the same peak HP with 30 extra tourque but it drops major after 5800.. any ideas?

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Max power was actually about 6200rpms, but we revved the engine to 6500rpms to see the full graph.
What kind of valve springs are you using?

Comp Doubles with titanium retainers.

here is my run it sounds good all the way to 6400 but the graph just drops around 5800.. You probably know me better By Bryan since you have done so many retunes for me (Thanks)

MVI_2053.flv - Video - Photobucket - Video and Image Hosting

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Originally Posted by -HIC-

here is my run it sounds good all the way to 6400 but the graph just drops around 5800.. You probably know me better By Bryan since you have done so many retunes for me (Thanks)

MVI_2053.flv - Video - Photobucket - Video and Image Hosting

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I know I have to setup my rev/? on my dyno to record the correct RPM, maybe the dyno ignition or sensor isn't calibrated. If I don't set mine up, actual rpm and dyno recorded rpm are about 600rpms off.

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Originally Posted by farmtruc

Do you have any dyno charts of an identical truck to back that up? I'm very interested in this.

I'll be proving/disproving your comment shortly, I have a 5.3L here that is going on the dyno someday and we'll be testing several cam grinds, I'll include the z06 cam in this group.

If there are any other cam grinds you guys would like to see and we can obtain them, we'll try them out.

thanks,
allen

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any word on this yet allen?

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Originally Posted by farmtruc

I know I have to setup my rev/? on my dyno to record the correct RPM, maybe the dyno ignition or sensor isn't calibrated. If I don't set mine up, actual rpm and dyno recorded rpm are about 600rpms off.

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This would make perfect sense b/c the if the truck feel off like the dyno showed It would feel like I lost 3 cylinders.. I need to make it up to SA to have you fine tune mine on the Dyno.
B

Cheap HP