throttle body spacer?

i was looking at adding some more bolt on power to my silverado and my friend said hes dad has a throttle body spacer on his and my friends silverado dosnt, and he noticed a diff driving his dads from his, both had 5.3Ls in them, and my older TBI truck ( i have a 2000 5.3L 1500 now) had one and it had some torque, well i thought about it and i thought the way the spacer helps is to give the air/fuel more time to mix toghter before entering the combustion chamber, well if thats the case how will it help on my newer truck that the fuel injectors are after the spacer? like all i see it doing is just ginve the air and extra inch to travel after the TB and then after it passes the spacer and TB it gets the fuel added?

if im not right on how the spacer works im sorry, how i thought they did, and if im not how does it add the low end gain it suppose to and mainly is it worth getting on my new truck?

thanks

i was looking at adding some more bolt on power to my silverado and my friend said hes dad has a throttle body spacer on his and my friends silverado dosnt, and he noticed a diff driving his dads from his, both had 5.3Ls in them, and my older TBI truck ( i have a 2000 5.3L 1500 now) had one and it had some torque, well i thought about it and i thought the way the spacer helps is to give the air/fuel more time to mix toghter before entering the combustion chamber, well if thats the case how will it help on my newer truck that the fuel injectors are after the spacer? like all i see it doing is just ginve the air and extra inch to travel after the TB and then after it passes the spacer and TB it gets the fuel added?

if im not right on how the spacer works im sorry, how i thought they did, and if im not how does it add the low end gain it suppose to and mainly is it worth getting on my new truck?

thanks


with the 2000 5.3L you will not see any difference ...waste of time/money...

replacing the O2 upstream sensors at 100.ooomi and using techron injector cleaner every 5,000mi with throttle body/maf cleaning should get you the proper power... always use the proper cleaning materials ,,,never use carb cleaner....it will destroy gaskets/rubber/plastic etc....my vehicle still has full power..

replace the spark plugs at 5o,ooomi...these engines are hard on the plugs...use the ac type...

i just put new plugs in it yesterday and new MSD 8.5 super wires and when i did i cleaned my whole intake TB and the intake on the heads, and i used AC delco plugs, it runs good now but was just lookin for a bit more, thanks though guess ill get a cold air intake then lookin at the K&N metal tubing one

am i correct on how the TB spacers work then?

i just put new plugs in it yesterday and new MSD 8.5 super wires and when i did i cleaned my whole intake TB and the intake on the heads, and i used AC delco plugs, it runs good now but was just lookin for a bit more, thanks though guess ill get a cold air intake then lookin at the K&N metal tubing one

am i correct on how the TB spacers work then?

the spacers will not effect the performance..I have read of some removing the engine coolant from the throttle body so as to not heat it up///colder air then inputs to the intake...perhaps in a hot climate like pheonix it would work well but in colder areas in winter you would have problems toooo cold air...

on a carb spacers worked,,,this allowed greater insulation so that the carb would not get hot and the gas vapors would flow disperse better....same as TBI...

with port injectors which we have all have , this would not change anything...

again I would replace the upstream O2 sensors ,,,these if out of cal....will cause the engine not to run correctly and if off may cause you to run lean....restricted exhaust, will also reduce torque...

with MAF cleaner clean the MAF sensor wires..this will ensure you get the correct fuel mixtures as well....

do not use carb cleaner ,,,these componets have materials that will be damaged,,,,,

well my truck now runs 100% fine now, no check engine light, has the correct amount of power and everything, i did replace one upstream sensor on the driver side cause the wires broke, i was just asking about the TB to see if it was worth the $40 dollars for little more power, thanks for info though

well my truck now runs 100% fine now, no check engine light, has the correct amount of power and everything, i did replace one upstream sensor on the driver side cause the wires broke, i was just asking about the TB to see if it was worth the $40 dollars for little more power, thanks for info though

if the O2 sensors have over 100,ooomi why change ONE ??
this will cost you plenty when your cat converter gets damaged..

ITS YOUR MONEY good luck...

well my truck now runs 100% fine now, no check engine light, has the correct amount of power and everything, i did replace one upstream sensor on the driver side cause the wires broke, i was just asking about the TB to see if it was worth the $40 dollars for little more power, thanks for info though

in most apps throttle body spacers are a get rich quick for the seller, they are witches brew and do nothing. think about it if gm could make a 5.3 25 hp more for a 10 machined block wouldn't they? there are many combinations your friends dads truck and his could have for hp, also they may not even have the same axle ratio, there are alot of simple tweaks gm did to change the power on these things through the years.

if you want quick power do something worth while like a cam swap or something. 5 and 10 hp mods are for the rice crowd, not to mention most of the ratings are flywheel, so you will loose all of that 5 or 10 by the time you get to the wheels, you will not even feel a difference. now 40 or 50 hp and around that much tourqe absolutely, it will feel like a whole nother truck.

yeah i really want to do a cam swap but dont have the $$ now and not sure on a speed shop to do programing and all that, can u do programming for the cams through a normal scanner? was looking at the LS1 hot cam for it or maybe maybe the MS3 or something, i would like one that gives like 50hp through the WHOLE rpm range or at least give me = to a bit more power at low end and more top end or somethin, and if im getting a cam i want it to idle real choppy lol, and how bad does a cam effect ur MPG?

yeah i really want to do a cam swap but dont have the $$ now and not sure on a speed shop to do programing and all that, can u do programming for the cams through a normal scanner? was looking at the LS1 hot cam for it or maybe maybe the MS3 or something, i would like one that gives like 50hp through the WHOLE rpm range or at least give me = to a bit more power at low end and more top end or somethin, and if im getting a cam i want it to idle real choppy lol, and how bad does a cam effect ur MPG?

you can get cams that supposedly don't require tuning, or there is always off the shelf chips, but you will not unleash the potential of any cam without live tuning it, simple fact of life. yes some will run fine without, but why?

yeah if i get a cam i really want it to run to its fullest and get properly tuned i just have to look around in my area or ask or something, might be my next up grade

whats a good site to get a cam or so from? i cant find any for a LM7 on summit and all, would got with a cam for an ls1 if i had too but if theres a good site or something to get stuff off of for these engines plz let me know

50hp across the whole range. Hey these are not diesels that you can tune up. You will not get 50hp across the whole range from any tuner what so ever. You will be extremely lucky to get one to give you 50 at any single point on the range. Be carefull what you buy. When it is advertising this product adds 12hp that means on one of there test vehicles there was at one place it adds that. It could only add 1 hp everywhere else if adding any at all. Now before anyone fires back saying there tuner did add 50 somewhere, I am talking about stock to slighty beefed up trucks in which you will not find that magic tuner.