09-01-2020, 01:05 PM | #1 |
Drives: 2012 ZL1 Camaro Join Date: Dec 2015
Location: Plains KS
Posts: 219
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Who's running the Kong 2650?
Looking to see who's running the Kong 2650 blower and with what pulleys, engine combo's, ect ect. Post up if you running a Kong blower with all info you can!
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~05 Vette~ (Procharged/Bolt-ons) SOLD ~98 Z28~ (TMS 408/RPM LVL 6/Circle D4k) SOLD. ~00 SS~ (Forged LS/IIHS 7875 Turbo/RPM Lvl 6/Strange S60) 10.3-141 ~2010 SS~ (SLP TVS2300 Blower/Speed Eng LT's) ~2012 ZL1~ (IIHS Twin Turbo) |
09-01-2020, 03:36 PM | #2 |
Drives: 2010 camaro ss, 2012 ZL1, 2021 LT1 Join Date: Oct 2009
Location: Iowa
Posts: 128
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I just added a Kong 2650 to my ZL1 and had it tuned by Jannetty. Before I had
the stock 1900 with Ted's 125 package plus dsx flex fuel sensor, aux pump and 9.55 (23%) pulley. I had about 13-14 psi. I ran 10.8s at 131. After the adding the 2650, I went to a 3.5 upper (stock is 3) and went to a dsx 9.06 lower. A lot less pulley than on the 1900. I hit almost 17 psi with the 2650. It has been really hot in Iowa. With cooler weather I might be higher than 17. I have not been back to the track yet. |
09-01-2020, 04:32 PM | #3 | |
Drives: 2014 1le 1SS CRMT Join Date: Apr 2014
Location: Boston mass
Posts: 1,185
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09-01-2020, 04:38 PM | #4 |
Drives: 2010 camaro ss, 2012 ZL1, 2021 LT1 Join Date: Oct 2009
Location: Iowa
Posts: 128
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Here is a chart I looked at for some guidance
Upper Dia. Lower Dia. Pulley Ratio KONG GM LSA Equiv. LSX Concepts - 7.950 10 Rib Lower Crank Pulley 3.25 7.95 2.446 -6% 34% 3 7.95 2.650 2% 42% 2.75 7.95 2.891 11% 51% 2.625 7.95 3.029 16% 56% LSX Concepts - 12.5% Overdrive 8.950 10 Rib Lower Crank Pulley 3.25 8.95 2.754 6% 46% 3 8.95 2.983 15% 55% 2.75 8.95 3.255 25% 65% 2.625 8.95 3.410 31% 71% |
09-01-2020, 06:14 PM | #5 |
Drives: 2010 camaro ss, 2012 ZL1, 2021 LT1 Join Date: Oct 2009
Location: Iowa
Posts: 128
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09-01-2020, 10:59 PM | #6 |
Drives: 2009 ZR1 Join Date: May 2010
Location: KCMO
Posts: 3,205
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I have a ZR1 with the 2650 so not apples to apples. I went with the smallest (2.4) pulley. I flatline the kpa at 255 which is 23.x lbs.
I should be making 1050whp or so. Everyone adding a 2650 to their ZR1 seems to be adding at least 130whp even going with a bigger pulley than the OEM blower (e.g. going from a 2.35 LS9 to a 2.625 2650 pulley). Car is actually apart at the moment so I haven't had a chance to dyno it. A good thing about the Kong 2650 is it is already max effort. There is no porting to do to it. It won't gain anything and will only void the warranty. |
09-02-2020, 10:44 AM | #7 | |
Drives: 2012 ZL1 Camaro Join Date: Dec 2015
Location: Plains KS
Posts: 219
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Quote:
__________________
~01 zO6~ (Procharged/bolt-ons) SOLD
~05 Vette~ (Procharged/Bolt-ons) SOLD ~98 Z28~ (TMS 408/RPM LVL 6/Circle D4k) SOLD. ~00 SS~ (Forged LS/IIHS 7875 Turbo/RPM Lvl 6/Strange S60) 10.3-141 ~2010 SS~ (SLP TVS2300 Blower/Speed Eng LT's) ~2012 ZL1~ (IIHS Twin Turbo) |
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09-02-2020, 10:59 AM | #8 | |
Drives: 2010 camaro ss, 2012 ZL1, 2021 LT1 Join Date: Oct 2009
Location: Iowa
Posts: 128
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Quote:
With the pulley change I made, I effectively went from a 23% overdrive on the 1900, to a 5% on the 2650. And gained 3-4 psi. I would think you would be around 14-15? |
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09-02-2020, 11:10 AM | #9 | |
Drives: 2010 camaro ss, 2012 ZL1, 2021 LT1 Join Date: Oct 2009
Location: Iowa
Posts: 128
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Quote:
A 3.0 upper pulley with a 7.95 lower pulley, would be a 2% overdrive on the 2650 and the equivalent of a 42% overdrive(approximately a 2.55 upper/9.55 lower) for psi on the 1900. I think the stock lsa balancer is 7.8, so it would be close to this. Last edited by quinthawk; 09-02-2020 at 11:40 AM. |
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09-03-2020, 09:28 AM | #10 |
fo'shizZL1
Drives: 2017 ZL1 Join Date: Aug 2017
Location: ATL
Posts: 1,379
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With the equivalent of 42% overdrive on a 1900, that's a LOT of air to try to stuff through the stock valve events... you'll have lots of "boost"... and by "boost", I mean heat. Get a cam in that sucker and a 3.5" pulley.
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Past Rides- 2014 ZL1 M6 Red Hot | Tons of mods 2004 CTS-V M6 Silver | Many mods 1995 Corvette M6 Torch Red | A few more mods 1992 Camaro M5 White | A few mods |
09-03-2020, 09:57 AM | #11 |
Drives: 2010 camaro ss, 2012 ZL1, 2021 LT1 Join Date: Oct 2009
Location: Iowa
Posts: 128
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My ait2 has been the same or slightly less than when I had the 1900, even though I have more boost. Before I add a cam I need to see what my times are at the track. I don't want to go below a 10.00 or I will have to add a cage, etc.
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