Has anyone had success with a throttle body spacer?

Asked by Jun 04, 2011 at 07:24 PM about the 2005 Chevrolet Suburban LS 2500 4WD

Question type: Car Customization

I pull a 30-ft travel trailer and would like some cheap extra horsepower.  A friend recommended a throttle body spacer, saying that he had a noticeable increase in horsepower and fuel efficiency with his GMC gasser when hauling his fifth wheeler. The ads sound good, but how much is just hype?

4 Answers

they typically produce 2-7 HP at the wheels.

1 of 1 people found this helpful.

Thanks for the reply. Any suggestions on economical ways to increase horsepower and torque? Getting better mileage would also be good with today's gasoline prices.

98,215

A throttle body spacer doesn't do anything for a engine with fuel injection. If it did increase horse power, people would have the throttle bodies hanging off of long pieces of pipe.

1 of 1 people found this helpful.
18,575

10 speed is correct, the spacer was benificial on carbs to help the air/fuel mix. But all your doing is making the air travel farther. Some people notice throttle response but that is not power, just a touchy gas pedal. Get a tune and free up airflow, but your stock air system should be pretty good on the truck.

2 of 2 people found this helpful.

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