02-12-2024, 10:21 AM | #1 |
Drives: Supercharged 45th 2012 Camaro SS Join Date: May 2019
Location: Nebraska
Posts: 26
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Considering Upgrading to the Kong 2650
Good morning all,
My current set up is an LS3 with an an LSA blower strapped to the top of it. I'm at just under 10 pounds of peak boost with a 2.55" upper pulley. I'm running E85 and my injector duty cycle hits about 60%, and have a DSX auxiliary pump. Car made 626hp and 600ftlb of torque. All the engine internals are stock, and it has stock cylinder heads. What do you guys think of a blower upgrade? I like the idea of the 2650 because it's a bigger blower and theoretically more efficient. Could I expect to see any power increase at the same boost level? I like the additional overhead space that this blower gives in case I want to turn up the boost down the road. All in all, its just a higher quality blower than the stock LSA, and I feel like it would be a good replacement. I appreciate any opinions and input. Thanks! Jake |
02-12-2024, 11:29 AM | #2 |
Drives: 2013 zl1 vert Join Date: Dec 2018
Location: Rochester, New york
Posts: 1,048
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I would not do a 2650 on a stock 376 motor. It takes more horsepower to turn that 2650 than a 1900. If you were 416 or bigger than sure go with the bigger blower. If i were you i would just do a x port on the 1900.
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22% lower/ 2.5 upper/ 2” headers/ cat delete/ x-pipe/ 2 gallon x tank/ 100-3 pump/ fic 1300/ dsx aux kit/ 103mm throttle body/ RPM 5” intake/ meth kit/ prometh lid injection/FI interchiller/ 160* stat/ ngk-7/ msd wires/ elite catch can/ tsp cam/ Che trunnions/ ported supercharger/ 1/2” lid spacer/ brick mod/BMR toe and trailing arms/ 751hp 757 tq SAE @17.3lb on a loaded dyno.
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02-12-2024, 11:38 AM | #3 |
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I agree with tartagliazl1, the 2650 will take more HP to run and for over $5000 for the blower and incidentals, you could do a lot to get more performance out of your SBE and 1.9L. On the flip side making the same whp on lower boost levels will keep IAT's down and help prevent knock on regular gas and it pulling timing. I wouldn't be able to stay at the current whp if I had a 2650 on mine, i'd have to turn it up til I blew it up!
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02-12-2024, 03:19 PM | #4 |
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I'm in the opposite camp...I say go with the 2650. Both blowers require HP to turn them, how much more or less...who knows? Dollars to donuts that the 2650 at 10psi will eclipse the LSA by a substantial margin. A fully ported and maxed out LSA might get you to the 750-800whp range, but that is about the limit. Sure, there are probably cases out there where somebody has gotten one higher, but not on a SBE LS3....
The 2650 is going to make more power, psi for psi, over the LSA. If you think you'll eventually want more power....go 2650....and don't look back. -Scott |
02-12-2024, 06:48 PM | #5 |
Drives: Red Jewel Camaro SS Join Date: Mar 2014
Location: East Coast
Posts: 396
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We gained 113 RWHP from a ported Jorkerz 1.9L LSA blower to the Kong 2650 on a stock cube LSA (878 RWHP,6L90,CTS-V),the extra 3 psi of boost played a role for the extra power even if we lowered the pulley ratio vs the 1.9L LSA.
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02-12-2024, 07:05 PM | #6 |
Drives: 2013 ZL1 Join Date: Sep 2021
Location: Virginia
Posts: 369
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I don't think the DSX is going to get you very far on the Kong no more than a ported LSA. If you do a fuel upgrade then yes there will be some sizable gains If I were going a 2650 I would go with a Magnuson it's a bit more efficient and the lid has a much better cooling capacity than the optional Kong lid. If your goals are 800hp or less a ported 1.9 LSA is hard to beat.
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02-20-2024, 01:53 PM | #7 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,277
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Quote:
You are no where near needing a 2650 unless your goal is 800 Plus RWHP which you would already have a cam for. Ted.
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Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
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02-26-2024, 12:15 AM | #8 | |
Drives: Supercharged 45th 2012 Camaro SS Join Date: May 2019
Location: Nebraska
Posts: 26
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Quote:
At what point do you think I should consider doing some internal strengthening? I'm all stock bottem end right now. I put down 626whp on a hot day out here in Nebraska. making just under 10 pounds of boost right now. |
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02-26-2024, 06:58 AM | #9 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,277
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Quote:
We do not have a way of knowing the current condition of the engine or what it has been through without tearing it down and inspecting, so it is really hard to predict how long it will last. I look at it this way, what do you have to lose buy playing with the current engine but being prepared for a failure?
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www.jannettyracing.com
Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
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06-19-2024, 03:33 AM | #10 |
Drives: ZL1 Join Date: Oct 2012
Location: Talladega
Posts: 636
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There is horsepower to be gained from going with a 2650 magnunson on a 376 liter with supporting mods like a cam, head porting, headers and 3 inch exhaust. I constantly hear people saying that the 376 is to small for a 2650 blower, but the C7 ZR1 comes from the factory with a 2650 on a 376 liter even though it's a LT5 it is still a 376 with a little more compression. Nickey's have done several 2650 magnunson's on LSA engines with very impressive gains.
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06-19-2024, 07:11 AM | #11 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,277
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Quote:
Unfortunately the internet, Especially Facebook, is full of Keyboard parrots. The TVS 2650 Is only too big if your trying to make 400 RWHP. The TVS2650 has proven time and time again to be the best supercharger bar none up to 1300 RWHP. We don't see the need for porting unless your trying to make 1500. We stock the LSA and LS3/L99 2650s for that reason. Feel free to give us a call. 203-753-7223. Ted.
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www.jannettyracing.com
Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
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06-19-2024, 01:27 PM | #12 |
Drives: ZL1 Join Date: Oct 2012
Location: Talladega
Posts: 636
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I do not think I am confused, seemly we are on the same page concerning the 2650. Thanks for always sharing your knowledge and experience.
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06-30-2024, 06:57 AM | #13 | |
Drives: it changes Join Date: Nov 2010
Location: Norn Iron
Posts: 1,128
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Quote:
And in most cases it's easy to pulley down to achieve lower goals. In reality, are there any major downsides ? Probably not. Just pulley/tune to make the rest of your setup and engine survive. |
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07-07-2024, 08:18 PM | #14 |
Drives: ZL1 Join Date: Oct 2012
Location: Talladega
Posts: 636
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I wonder what have so many thinking the 376 ci or 6.2 liter is too small for a 2650 blower, like mention earlier the C7 ZR1 comes from the factory with one (2650), the dodge hellcat engines are a 6.2 liter also comes with 2650 from the factory. There are several people putting 3.0 and 2.9 whipples on LS3 engines, just have to keep in mind that the bottom end is limited not being forged, but with good fuel and not too aggressive with the timing one could be fine.
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