Ported Throttle Body
#11
03-23-2012, 04:36 PM
i knew it would eventually get to the the three duece high riser sittin on a side oiler 427 built for short bursts at 1320 foot time trials!!,where mileage is not considered!!
just how does it pay off in a hummer?. more air needs more gas to maintain the computer controlled ratio,air/fuel. you can pump more air in also. will that get free power,better mpg?
im still/always looking for the point of payoff,cost benefit.
and im always ready to agree that for some guys it feels good to spend money for a talk point,thats fine,not for me.
seems to me,if you "grease the skids' and let more air slip by,the comp will notice and respond,more gas to go with the air,more power at that particular foot position,causing or requiring a lighter touch to ultimatly drive the same as yesterday.
if you cant make more power with less expense,why not just push the pedal more when you need to go faster. i just toured the hills in west pa and made it up each one just fine
edit, btw i went to a tb port website to read about the process from a man who is in the business. he showed pix of how he machines out your tb to a max oversize and installs a new brass throttle plate to match the new size. so much for not being enlarged huh!!. then he shapes and polishes for max flow and max fuel usage at the drag strip, i guess! bigger holes mean quicker action with less pedal motion.
it does nothing else. so if you spend a lot of time at WOT you want a big tb!!
just how does it pay off in a hummer?. more air needs more gas to maintain the computer controlled ratio,air/fuel. you can pump more air in also. will that get free power,better mpg?
im still/always looking for the point of payoff,cost benefit.
and im always ready to agree that for some guys it feels good to spend money for a talk point,thats fine,not for me.
seems to me,if you "grease the skids' and let more air slip by,the comp will notice and respond,more gas to go with the air,more power at that particular foot position,causing or requiring a lighter touch to ultimatly drive the same as yesterday.
if you cant make more power with less expense,why not just push the pedal more when you need to go faster. i just toured the hills in west pa and made it up each one just fine
edit, btw i went to a tb port website to read about the process from a man who is in the business. he showed pix of how he machines out your tb to a max oversize and installs a new brass throttle plate to match the new size. so much for not being enlarged huh!!. then he shapes and polishes for max flow and max fuel usage at the drag strip, i guess! bigger holes mean quicker action with less pedal motion.
it does nothing else. so if you spend a lot of time at WOT you want a big tb!!
Last edited by drtom; 03-24-2012 at 07:54 AM.
#12
03-24-2012, 01:28 PM
What you are saying make a lot of sense. But moving more power to lighter pedal make it scoot around town easier. Plus it doesn't down shift as much on every little hill. I will be doing a PCM upgrade in the future to take full advantage of my mods. First a muffler, then headers and then the PCM.
#14
03-25-2012, 12:23 PM
High end on price:
Hummer Parts and Accessories : Hummer H3 Long Tube Header System Up to 30HP Gain!
Low end price:
H3 5 Cylinder Header
Hummer Parts and Accessories : Hummer H3 Long Tube Header System Up to 30HP Gain!
Low end price:
H3 5 Cylinder Header
#15
03-25-2012, 12:57 PM
These are the ones I'm looking at I5 Colorado/Canyon Stock Replacement Header
Skeeter has a set ordered now. I want to hear his impressions.
Skeeter has a set ordered now. I want to hear his impressions.
#18
03-26-2012, 09:09 PM
When you order the header I bought they make it for you. I am still waiting on mine. i ordered it over 3 weeks ago. The one that everyone talks about hitting the crossmember is the longtube for the I5. You can get headers for the 5.3L.
Last edited by skeeter; 03-26-2012 at 09:13 PM.
#19
03-27-2012, 11:46 AM
i knew it would eventually get to the the three duece high riser sittin on a side oiler 427 built for short bursts at 1320 foot time trials!!,where mileage is not considered!!
just how does it pay off in a hummer?. more air needs more gas to maintain the computer controlled ratio,air/fuel. you can pump more air in also. will that get free power,better mpg? More 02 needs less fuel
im still/always looking for the point of payoff,cost benefit.
and im always ready to agree that for some guys it feels good to spend money for a talk point,thats fine,not for me.
seems to me,if you "grease the skids' and let more air slip by,the comp will notice and respond,more gas to go with the air,more power at that particular foot position,causing or requiring a lighter touch to ultimatly drive the same as yesterday.
if you cant make more power with less expense,why not just push the pedal more when you need to go faster. i just toured the hills in west pa and made it up each one just fine
edit, btw i went to a tb port website to read about the process from a man who is in the business. he showed pix of how he machines out your tb to a max oversize and installs a new brass throttle plate to match the new size. so much for not being enlarged huh!!. Why not share you venerable source of all knowledge on this topic. Maybe some dude enlarges TB plates for some other vehicles, but I am talking about a H3 done by SuperModulation?
then he shapes and polishes for max flow and max fuel usage at the drag strip, i guess! bigger holes mean quicker action with less pedal motion.
it does nothing else. so if you spend a lot of time at WOT you want a big tb!!
Who said anything about drag strips?
just how does it pay off in a hummer?. more air needs more gas to maintain the computer controlled ratio,air/fuel. you can pump more air in also. will that get free power,better mpg? More 02 needs less fuel
im still/always looking for the point of payoff,cost benefit.
and im always ready to agree that for some guys it feels good to spend money for a talk point,thats fine,not for me.
seems to me,if you "grease the skids' and let more air slip by,the comp will notice and respond,more gas to go with the air,more power at that particular foot position,causing or requiring a lighter touch to ultimatly drive the same as yesterday.
if you cant make more power with less expense,why not just push the pedal more when you need to go faster. i just toured the hills in west pa and made it up each one just fine
edit, btw i went to a tb port website to read about the process from a man who is in the business. he showed pix of how he machines out your tb to a max oversize and installs a new brass throttle plate to match the new size. so much for not being enlarged huh!!. Why not share you venerable source of all knowledge on this topic. Maybe some dude enlarges TB plates for some other vehicles, but I am talking about a H3 done by SuperModulation?
then he shapes and polishes for max flow and max fuel usage at the drag strip, i guess! bigger holes mean quicker action with less pedal motion.
it does nothing else. so if you spend a lot of time at WOT you want a big tb!!
Who said anything about drag strips?
#20
03-27-2012, 02:09 PM
Skeeter,
Just so I am understanding things, you are saying the Hummer H3 Long Tube Header System from KPE and Hummer Parts Club is the one that hits the crossmember (links below)?And you ordered this one from OTTP and that fits w/out modifications:Am I correct or do I have things wrong? And why is the OTTP one so much cheaper than the Long Tube Header?
Just so I am understanding things, you are saying the Hummer H3 Long Tube Header System from KPE and Hummer Parts Club is the one that hits the crossmember (links below)?And you ordered this one from OTTP and that fits w/out modifications:Am I correct or do I have things wrong? And why is the OTTP one so much cheaper than the Long Tube Header?