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Forced Induction - V8 V8 Supercharger, turbo, nitrous discussions

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Old 01-06-2014, 07:23 PM   #1
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Question A new 'Super vs. Turbo' question

I know there are a number of threads on the pros and cons of each, but wanted to add a slight twist to the question.

Am thinking of going the FI route on my '13 L99, but I'm in CA and would like to stay CARB / 50-state legal. This limits my potential choice in a few ways:

1 - Can't add a CAI or LTs if going with an S/C

2 - I believe the only 50-state legal S/Cs are Maggie, Whipple and E-force (though not sure all have approval for '13 yet, Maggie does)

3 - Only 50-state legal turbo is the Turbnonetics T76

The car is a daily driver, and I'm hoping to get close to ~500 rwhp if possible at some point. Given no CAI or LTs, seems like I would be missing some of the best 'next mods' going with a supercharger.

Any thoughts would be welcome and appreciated!

Thanks
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Old 01-06-2014, 08:52 PM   #2
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With the turbo you should be able to keep turning up the boost until you hit the numbers you happy with. It probably won't be the off the shelf carb legal tune, but they won't know that.
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Old 01-07-2014, 01:12 AM   #3
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I’m not entirely sure on this but to my knowledge Cali has a restriction on the Catalytic converters not the long tubes themselves, or am I mistaken?
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Old 01-07-2014, 07:21 AM   #4
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Cali requires all mods to pass Carb testing and be certified. Anything that moves the cats is an automatic failure so long tubes/etc are not legal in CA.
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Old 01-07-2014, 07:38 AM   #5
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My car puts down 499/557 at the wheels on jannettys heart breaker dyno the car went 11.98 on street tires and 121 trap times with the turbonetics t 76 set up, the part I love most is being able to adjust the boost for different situations. Car is very streetable.
It's 50 state legal as well.

Either way sc or turbo the car will be a lot of fun and reach your goals, good Luck
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Old 01-07-2014, 08:37 AM   #6
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Get out of California throw a twin turbo setup at it and forget the legal crap.
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Old 01-07-2014, 09:24 AM   #7
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I typically am all for a turbo setup but given your state's stupid restrictions I would have to say a tvs setup is best for you. If you really want longtubes do them and pull them off come inspection time and swap w/ your oem parts. Camaro headers are silly easy to do so it's worth it.
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Old 01-07-2014, 10:02 AM   #8
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I typically am all for a turbo setup but given your state's stupid restrictions I would have to say a tvs setup is best for you. If you really want longtubes do them and pull them off come inspection time and swap w/ your oem parts. Camaro headers are silly easy to do so it's worth it.

Interesting. Given there's a turbo option available for CA, in your opinion what makes the TVS the better of the two choices in this case?

I was actually leaving towards a T76 with shorty headers (since there a couple of legal ones, ARH, JBA).
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Old 01-07-2014, 10:15 AM   #9
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A positive displacement blower won't make any power especially without supporting mods like headers etc so just do the turbo setup.
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Old 01-07-2014, 10:15 AM   #10
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Shorties would be a waste of money and probably wouldn't add any power on that setup. Stock manifolds would probably be better.
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Old 01-07-2014, 10:30 AM   #11
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A positive displacement blower won't make any power especially without supporting mods like headers etc so just do the turbo setup.
Then why are CTS-V's running low 10's on stock manifolds and catback?
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Old 01-07-2014, 10:55 AM   #12
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Interesting. Given there's a turbo option available for CA, in your opinion what makes the TVS the better of the two choices in this case?

I was actually leaving towards a T76 with shorty headers (since there a couple of legal ones, ARH, JBA).
I don't like the kit to be honest. Not bashing it at all, but for your goals it doesn't seem like the best option.
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Old 01-07-2014, 11:40 AM   #13
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They are honestly both bad options because cali is lame. I think moving is the best option.
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Old 01-07-2014, 12:13 PM   #14
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They are honestly both bad options because cali is lame. I think moving is the best option.
Even worse options when you factor in the ~9% sales tax...

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A positive displacement blower won't make any power especially without supporting mods like headers etc so just do the turbo setup.
Interesting point of view, thanks for sharing. Do others agree that if you can't do the supporting mods (LTs, etc) that a roots or twin-screw S/C wouldn't make as much sense as a turbo?
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Old 01-07-2014, 12:28 PM   #15
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I can't say they don't make as much "sense" because that is a matter of opinion. ie powerband preferences. I can say without the supporting mods at a given boost level the turbos will make more power and tq. example All stock at 5.8psi I made 589whp 581wtq with my IPS tt kit. At 8psi I made 655whp and 646wtq(still all stock including mufflers) and then I added meth for safety and ran 9.5psi and made 693whp 708wtq. Besides the single nozzle medium meth everything else was stock at that point.
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Old 01-07-2014, 02:03 PM   #16
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A positive displacement blower won't make any power especially without supporting mods like headers etc so just do the turbo setup.

My personal data suggests the following. I put a TVS 1900 on my "06 GTO (LS2) without any other mods and made 500HP on the dyno at ETMC after tuning. I eventually did gain another 70HP with headers, CAI and a new camshaft but after that experience I was feeling like the best bang for the buck was just putting on the blower.

This is just my personal experience but I would love to see data that determines weather or not it is worth only putting on a blower or not. Heretical as it may sound I'm still not a big fan of headers or loud exhausts so this is kind of interesting....
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Old 01-07-2014, 02:45 PM   #17
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My personal data suggests the following. I put a TVS 1900 on my "06 GTO (LS2) without any other mods and made 500HP on the dyno at ETMC after tuning. I eventually did gain another 70HP with headers, CAI and a new camshaft but after that experience I was feeling like the best bang for the buck was just putting on the blower.

This is just my personal experience but I would love to see data that determines weather or not it is worth only putting on a blower or not. Heretical as it may sound I'm still not a big fan of headers or loud exhausts so this is kind of interesting....
Boy I hear you there. I had a 05 GTO with full bolt ons, built motor, ls3 heads, nitrous, and a pretty aggressive cam, and man when I got the Camaro I had no interest in all that noise. One of the driving factors in me going turbo(although one of the least important). So now I'm making over 1Kwhp and I can whisper to my passenger at 80mph on the interstate. Stock cat back.
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Old 01-07-2014, 03:15 PM   #18
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My personal data suggests the following. I put a TVS 1900 on my "06 GTO (LS2) without any other mods and made 500HP on the dyno at ETMC after tuning. I eventually did gain another 70HP with headers, CAI and a new camshaft but after that experience I was feeling like the best bang for the buck was just putting on the blower.

This is just my personal experience but I would love to see data that determines weather or not it is worth only putting on a blower or not. Heretical as it may sound I'm still not a big fan of headers or loud exhausts so this is kind of interesting....
On my tvs that doesn't make power im over 800rwhp on 93,yes I do have headers and it does help but for the power goals you have in mind the TVS is a great choice and will do it without headers
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Old 01-08-2014, 12:30 AM   #19
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