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02-19-2019, 04:18 PM
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#1 |
 Drives: 2016 camaro ss Join Date: Dec 2018
Location: NC
Posts: 43
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surging issues after porting tb
Anyone else have this problem after porting tb, its doing it cruising down the road, the timing is going up and down via hptuners?
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02-19-2019, 04:43 PM
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#2 |
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Banned
Drives: 6 on the Flo' Super Sport Join Date: Jan 2011
Location: md
Posts: 1,924
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Did you buy it ported or ported it yourself?
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02-19-2019, 07:27 PM
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#3 |
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Drives: 2016 camaro ss Join Date: Dec 2018
Location: NC
Posts: 43
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ported myself
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02-19-2019, 08:04 PM
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#4 |
 Drives: 2017 1SS Hyper Blue Join Date: Apr 2017
Location: Wisconsin
Posts: 479
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Maybe an air leak on the intake?
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02-19-2019, 08:46 PM
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#5 |
         Drives: 2SS 1LE Join Date: Aug 2013
Location: US
Posts: 3,794
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You took out too much material. U might be able to tune it smooth
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02-20-2019, 04:03 AM
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#6 |
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Drives: 2016 camaro ss Join Date: Dec 2018
Location: NC
Posts: 43
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I thought i was being conservative lol did it while car was on dyno, did pick 10 rwhp, we have tried to smooth several times, It just doesn't like the port work. I ordered the lt5 yesterday
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02-20-2019, 06:51 AM
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#7 |
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Drives: 2SS 1LE Join Date: Aug 2013
Location: US
Posts: 3,794
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I’m pretty sure if u even touch the area near where the blades closes it’s game over
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02-20-2019, 10:19 AM
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#8 |
 Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,346
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That is my understanding too, I ported my own and did not even look at the lip next to the blade.... this is best done by the pros IMO.
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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02-20-2019, 05:35 PM
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#9 |
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Drives: 2016 camaro ss Join Date: Dec 2018
Location: NC
Posts: 43
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These are a lot more sensitive then the ls stuff then, and I didn't mess with the blade area just the lip.
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02-20-2019, 06:51 PM
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#10 |
Drives: 2019 Camaro 1LE Shock Candy Join Date: Mar 2016
Location: Garage
Posts: 1,798
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I have my original stock TB if your interested. I am using a 103MM
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LT4 1.7 Supercharger snout ported & 100% Meth
103 Katech TB, KATECH Custom Heads, DSX In-line fuel TSP Headers, Spec P Super Twin Clutch, TSP EL C7 CAM Diamond Piston & Manley Rods, Roto Fab Big Gulp BTR Push Rods,LS7 Lifters, ARP, FI Chiller, Kirkey Seats SJM Line Lock, Hurst Pistol Grip. 747/739 RWHP street tune - 821/794 RWHP track tune 101 octane. 2014 Mini Cooper countryman S All4 M6 daily driver |
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02-20-2019, 10:28 PM
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#11 |
Drives: 2018 2ss 1le Join Date: Jan 2018
Location: Huntington, NY
Posts: 482
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I have a Mamo stock ported throttle body
Nice piece Looking for 200 firm plus shipping In case any one is interested
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2018 2ss 1le roto fab dry, Stainless works 1 7/8 lt to 3'" x pipe with highflow cats to stock npp, soler 95mm t/b, edelbrock 2300, LT4 fueling , jms bap and dsx flex fuel, 618/620 on e45 rwhp
Jannetty Motorsports tuned |
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02-20-2019, 10:35 PM
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#12 |
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Drives: 2019 Camaro 1LE Shock Candy Join Date: Mar 2016
Location: Garage
Posts: 1,798
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Stock TB —- I am looking for $40 bucks plus $15 for shipping.
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LT4 1.7 Supercharger snout ported & 100% Meth
103 Katech TB, KATECH Custom Heads, DSX In-line fuel TSP Headers, Spec P Super Twin Clutch, TSP EL C7 CAM Diamond Piston & Manley Rods, Roto Fab Big Gulp BTR Push Rods,LS7 Lifters, ARP, FI Chiller, Kirkey Seats SJM Line Lock, Hurst Pistol Grip. 747/739 RWHP street tune - 821/794 RWHP track tune 101 octane. 2014 Mini Cooper countryman S All4 M6 daily driver |
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02-22-2019, 04:05 PM
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#13 |
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Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016
Location: Norman, OK
Posts: 2,424
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If you removed any material around the area where the throttle blade rests you will have surging issues. The LT1 doesnt use a IAC valve, it uses air that bleeds past the throttle blade for idle control along with minimal throttle blade opening.
I had the same issue with a ported TB by a well known porter and it took another TB to fix the issue. Afterwards we figured out it was the throttle blade opening that was causing the issue.
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2019 Corvette Z06 2LZ A8 - Halltech CAI, AWE non-catted X-pipe, Mamo V2 ported TB 592rwhp, bone stock 566rwhp
2017 Camaro SS 1LE - Procharger D1SC w/ Tial 2" BOV & Race intercooler / ARH full length catless headers / Alky meth injection system - 650rwhp on conservative tune SOLD |
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02-23-2019, 01:26 PM
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#14 |
Drives: 2017 1SS 6spd Join Date: Jan 2011
Location: Utah
Posts: 3,041
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Here's another out of place add- Off my car with < 9K miles, like new. $80.00 shipped. Includes mounting bolts and factory anti-whistle spacer/gasket. GM part# 12620263.
NICUL15 can give me a reference if you like. He bought the OE IM. 
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