Truck Intake versus LS6 question
Dec 31, 2003 | 08:49 AM
#1
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From: Vengeance Racing
Truck Intake versus LS6 question
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How do the truck intakes flow compared to what the car guys are using (LS6, LSX, etc.)? I assume they have more volume, but do truck guys swap intakes just for better flow?
How do the truck intakes flow compared to what the car guys are using (LS6, LSX, etc.)? I assume they have more volume, but do truck guys swap intakes just for better flow?
Dec 31, 2003 | 09:22 AM
#2
Yes the LS6/LSx intakes flow much better than the truck intakes. Our longer runners do allow for more lowend torque but the guys here with built motors, heads/cam, etc are swapping thier intakes for more flow up top and compensating on the bottom with gears or converters.
Dec 31, 2003 | 01:41 PM
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From: Geneseo, NY
the LS6 intake runners are only 1mm longer than the truck intake runners, the plenum is bigger though, and the design of the intake allows for a higher velocity intake charge at higher rpm's.....no-one has yet to prove that the LS6 intake makes better torque than the truck intake though
I did a swap from a truck intake to an LS1 intake and I saw NO difference in performance below 4500rpms...above that the airflow was greatly improved and the truck pulled MUCH harder to 5500....the only reason I swapped back is because I don't have f-body injectors yet and the ls1 intake with truck injectors and modified truck fuel rails kinda looked stupid....and the alternator bracket with the relocated idler pulley was kinda hacked together (I don't have a MIG welder so I had to bolt the new plate into place and I didn't like the look of it)
the reason I mentioned my swap is because the reason people swap from LS1 intakes tio LS6 intakes is to gain the high-end airflow that the LS6 intake is capable of.....unless you are going to put a cam in to take advantage of the airflow stick with the truck intake....it'll flow all you can use for normal driving
I did a swap from a truck intake to an LS1 intake and I saw NO difference in performance below 4500rpms...above that the airflow was greatly improved and the truck pulled MUCH harder to 5500....the only reason I swapped back is because I don't have f-body injectors yet and the ls1 intake with truck injectors and modified truck fuel rails kinda looked stupid....and the alternator bracket with the relocated idler pulley was kinda hacked together (I don't have a MIG welder so I had to bolt the new plate into place and I didn't like the look of it)
the reason I mentioned my swap is because the reason people swap from LS1 intakes tio LS6 intakes is to gain the high-end airflow that the LS6 intake is capable of.....unless you are going to put a cam in to take advantage of the airflow stick with the truck intake....it'll flow all you can use for normal driving
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Dec 31, 2003 | 03:30 PM
#9
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From: Texas
Originally Posted by Yelo
the LS6 intake runners are only 1mm longer than the truck intake runners, the plenum is bigger though, and the design of the intake allows for a higher velocity intake charge at higher rpm's.....no-one has yet to prove that the LS6 intake makes better torque than the truck intake though
I did a swap from a truck intake to an LS1 intake and I saw NO difference in performance below 4500rpms...above that the airflow was greatly improved and the truck pulled MUCH harder to 5500....the only reason I swapped back is because I don't have f-body injectors yet and the ls1 intake with truck injectors and modified truck fuel rails kinda looked stupid....and the alternator bracket with the relocated idler pulley was kinda hacked together (I don't have a MIG welder so I had to bolt the new plate into place and I didn't like the look of it)
the reason I mentioned my swap is because the reason people swap from LS1 intakes tio LS6 intakes is to gain the high-end airflow that the LS6 intake is capable of.....unless you are going to put a cam in to take advantage of the airflow stick with the truck intake....it'll flow all you can use for normal driving
I did a swap from a truck intake to an LS1 intake and I saw NO difference in performance below 4500rpms...above that the airflow was greatly improved and the truck pulled MUCH harder to 5500....the only reason I swapped back is because I don't have f-body injectors yet and the ls1 intake with truck injectors and modified truck fuel rails kinda looked stupid....and the alternator bracket with the relocated idler pulley was kinda hacked together (I don't have a MIG welder so I had to bolt the new plate into place and I didn't like the look of it)
the reason I mentioned my swap is because the reason people swap from LS1 intakes tio LS6 intakes is to gain the high-end airflow that the LS6 intake is capable of.....unless you are going to put a cam in to take advantage of the airflow stick with the truck intake....it'll flow all you can use for normal driving
If somebody could supply a alternator bracket with the required mods to the idler pulley, I would be all over it and do this swap on our 6.0L(I have an LS6 intake). I guess it won't really matter once I go to the Radix, but I am surprised there isn't a vendor offering the mod'd bracket.
Todd
Dec 31, 2003 | 03:34 PM
#10
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From: Geneseo, NY
Originally Posted by BLK6.0HD
Do you have any pics with the ls6 intake on? Will our tb work with the ls6 intake? What needs to be done to the alt bracket?
The alternator bracket needs the idler pulley moved over and down about 3" to clear the TB...the stock TB will work fine...you need to get a belt that is about 6" longer to connect it all together too