Im thinking about putting a CAI and a throttle body spacer on my 05 5.3 rcsb sierra. What will I notice if nething? Does anybody know what kind of RWHP this should add?

 

not worth your time and money on the throttle body spacer.. cai maybe 5-8 more hp

 

so i wont even get like 1hp out of the TBS? better gas milage nothing!?

 

you get you a cool little wistle. they way the intake is designed its impractical. you will see a bigger gain in horsepower from your motor being warm vs. heat soaked

 

hell its your money spend it like you want to, do a search for throttle body spacer, the search is at the top right, good luck on your quest.

 

I'm surprised you didn't say at least 40hp Tyler

In the older carburated and tbi engines a spacer may have helped but in the gen III engines the fuel is injected into the intake ports all the spacer would do is elongate the passage for the air to enter the intake.

 

well every little bit counts but don't expect to much of a gain dude........ unless you install a nitrous nozzle into the spacer.

 

i honestly dont see how it can work on a fuel injected engine. first off you have a blade infront of disturbing airflow, then it goes through the spacer supposed to make it some what spin. ok so it spins but then it goes into the tube section of the intake and goes into 8 different holes. do you still think that are is still rotating once it is in the heads? the reason a spacer works on carbureted and tbi engines because you get better atomization with air and fuel mixture. still i would discourage drilling a spacer for nitrous unless you buy an actual tb spacer made for nitrous

 

depends on the rotation.. this time i was sayin the truth next time ill say it adds 42.785 rwhp

 

I just said everything counts LOL only so I can set it up to tell him to put a nozzle in it. I never had any problems with my set up, the only problems I ever had were with solenoids.