How to bore and port a tb
I know I have seen this question answered b4 but I have searched and can't find it. Anyway I want to bore and port my TB. Can anyone tell me how to go about this? Would I be better to just take it to the machine shop, or should I just order a new larger size? Look over my stupidity all help appreciated
Chris S The GoFastPadre 00 Sierra ECSB Z71 Mods so far Headers Dual HFC's Flowmasters K&N CAI and much more to come. 06 Grand Prix no mods yet
Well, first off, boring and porting are essentially the same thing. You want to port and then polish the TB. You can get a Dremel tool with several different grades of sanding and polishing wheels. Start off with the lowest grit of sanding wheel to knock down the bigger sections you want to port. As you work your way around, get the next higher number (finer) sanding wheel. You can port it out pretty good, but be aware that you should not port the TB opening where the butterfly valve is--if you get the opening too big then you will have to cut a larger butterfly valve plate to compensate for the bigger opening. Once you have it ported to where you want it, put on a polishing wheel and smooth it out.
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
Does anyone have any step by step pictures of how you do this? Also does this help at all or is it a waste of time?
Don't stay in one place for too long while porting you can distort the metal. Oh yeah good luck I would practice on an old junk T.B. first.
2005 rcsb silverado 4.8L, Full bolt ons, obx lt's, ory, comp xr265hr hi lift, Nitrous outlet plate kit, built 4l65e, J-H shift kit, 2500 stall,3.73 G80 , 3 inch spintech cat back, tuned by Rick at Synergy motorsports
I forgot to tell you my outcome when I P and P'd mine, I noticed more midrange and topend it sounds cool too.
2005 rcsb silverado 4.8L, Full bolt ons, obx lt's, ory, comp xr265hr hi lift, Nitrous outlet plate kit, built 4l65e, J-H shift kit, 2500 stall,3.73 G80 , 3 inch spintech cat back, tuned by Rick at Synergy motorsports
go to cardomain.com and search up txsilverado. i think the write up is on page 4Originally Posted by 06 4.8
old mod list: H/C/I/N/E/G 408
new mod list: 5.3, gears/posi, mufler and tune : (
Thanks fellas.
Chris S The GoFastPadre 00 Sierra ECSB Z71 Mods so far Headers Dual HFC's Flowmasters K&N CAI and much more to come. 06 Grand Prix no mods yet
Posting Permissions
Reply With Quote
