what mod next???

rebel77 · May 23, 2003

Well I have a 03 Z71 with a 5.3. I have added a flowmaster muffler and a cold air intake. I want something that will make the truck take off when I punch the gas. How can I accomplish this? I would like to know what you think.

Also how can I make the truck louder?

Rebel77

BadBowtie · May 23, 2003

What gears do you have, 3.73? You could swap in a set of 4.10's. How about a bigger throttle body?

Pulleys?

Programmer?

Headers?

Supercharger-- How fast did you want to get off teh line again?

-John

rebel77 · May 23, 2003

I am not real knowledgeable on what some of these things are.I have thought about the programmer. If I buy the diablo and tune to performance, will that help?

I am not thinking about a super charger at all. I just want a better start. Not sure what gears I have. What will a larger throttle body do? What does one cost? I am debating on spending the $420 for a programmer. I do not want to drop a ton of $$$ into this. Thanks for the reply.

Rebel77

AllGMV8 · May 23, 2003

If you want louder, take that Flowmaster muffler back off and replace it with straight pipe. THAT will make it louder and ever so slightly lighter so you accomplish both goals. Cops and your neighbors won't like it, but Harley riders will dig you. Or you could keep the mufflers and replace the cats with pipe but that's environmentally unfriendly and will fail you at inspection time, if you are subject to inspections.

Other than that, you've pretty much done with low-buck power mods. Next step is porting/polishing the heads, nitrous, a gear change or a supercharger

Adam

rebel77 · May 23, 2003

How much will the programmer help me?

Need some input from people with the Diablo.

Rebel77

MarkD · May 23, 2003

Torque converter, biggest bang for the buck.

cowboy02 · May 23, 2003

Torque converter.

awdvkd · May 23, 2003

DO NOT run straight pipes, it will kill your bottom end big time. These engines need back pressure

rebel77 · May 23, 2003

By torque converter, do you mean by using the programmer??? Please explain. I'm sorry not real knowledgeable with this stuff.

tmf6902 · May 24, 2003

Jet engine with Afterburner

Pewter Pro-Tec · May 24, 2003

By torque converter, do you mean by using the programmer??? Please explain. I'm sorry not real knowledgeable with this stuff.

The torque converter is what connects the automatic transmission to the engine, sort of what a clutch would do for a manual transmission.

I think they are suggesting that you change it for better takeoff.

DrChuck23 · May 25, 2003

A torque converter mates the engine to the transmission and you can get aftermarket ones that have a higher stall. This means that your engine can rev higher at take-off to "multiply" your torque off the line. Most drag racers will tell you that it is the most productive mod for auto transmissions.

Here is a link to tbyrne.com, select transmission/gears to check out different converters and their cost: http://www.tbyrne.com/truckcatalog.html.