hello - what do i need as far as manifold water pump ect. to install a 90mm throttle body on my 2004 5.3L lm7 motor thanks
hello - what do i need as far as manifold water pump ect. to install a 90mm throttle body on my 2004 5.3L lm7 motor thanks
<div class='quotetop'>QUOTE(MHSLOT12 @ Apr 4 2007, 04:38 PM) [snapback]88522[/snapback]</div>WHAT KIND OF TB IS IT? SOME WILL FIT ON A REGULAR MANIFOLD WITH AN ADAPTER. I HAD A BBK 80MM AND IT BOLTED RIGHT UP, BUT I DO NOT KNOW ANOUT A 90MM. PROBABLY A FAST OR GMPP INATKE DESIGNED FOR A 90MM TB. NO WATER PUMP IS NECESSARY. YOU WILL NEED A TUNE FOR ALL THE EXTRA AIR? ANYONE ELSE HAVE ANY ADVICE THAT I MAY HAVE MISSED.hello - what do i need as far as manifold water pump ect. to install a 90mm throttle body on my 2004 5.3L lm7 motor thanks
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JAMEST
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<div class='quotetop'>QUOTE(Jamest @ Apr 4 2007, 07:37 PM) [snapback]88542[/snapback]</div>I did an 80mm like James--and it bolted right up. Since we have the cable style throttle, we can just adjust the idle screw... If you go that big and have the electronic throttle, you will have to have a tune done. I have not seen any applications of a 90mm TB on a stock manifold. I have seen the Z06 intake mainfold done with a 90mm... If you haven't bought the 90mm yet...hold off. Either have your stock TB ported and polished or do the 80mm. That way you won't have to by a new manifold for it to work. With a bigger TB, no mods to the water pump is necessary...WHAT KIND OF TB IS IT? SOME WILL FIT ON A REGULAR MANIFOLD WITH AN ADAPTER. I HAD A BBK 80MM AND IT BOLTED RIGHT UP, BUT I DO NOT KNOW ANOUT A 90MM. PROBABLY A FAST OR GMPP INATKE DESIGNED FOR A 90MM TB. NO WATER PUMP IS NECESSARY. YOU WILL NEED A TUNE FOR ALL THE EXTRA AIR? ANYONE ELSE HAVE ANY ADVICE THAT I MAY HAVE MISSED.
JAMEST
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2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
thanks guys -ihave a procharger on the truck now with 44lb injectors and want to go to 60lbers because there maxed out at around 6000 rpm's so i'd like to put more air in with the bigger injectors ..the 90mm throttle body i got was on a newer style corrvette, but it has 4 bolt hole instead of the 3 hole like the one thats on the truck now .and i heard that you have to change the water pump because of the way the neck of the water pump is facing up on the trucks and gets in the way when you try to put on something like a fast or stock corvette manifold because it sits lower than the truck style does .if there is a adapter that would fit on would be to easy.. LOL .. edelbrock makes a manifold that will work ,but the rpm range doesn't come on till 3000 .i'd like to find something from idol to 7000 .wilson manifolds makes a elbow that will fit the 90mm throttle body .but i can't find the right manifold .. thanks again for the help
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