Which Roto-Fab? Big Gulp or Regular?

mark lewis · 05-15-2019, 04:12 PM

I want to change my air intake on my 2017 SS with a Magnuson supercharger. Im still using the stock throttle body but have a list of other mods (meth,cam,ect…) The car makes around 650 wheel horsepower right now but going back to the shop for some fuel upgrades along with E-85. Will I be making enough power to use the "Big-Gulp" Roto-Fab intake or should I just stick with the regular one that has already been proven? I hear about problems tuning the car with the big gulp if your not making enough power to utilize it.

Joshinator99 · 05-15-2019, 04:45 PM

Big Gulp with upsized throttle body should be a nice gain in power for you.

laynlo15 · 05-15-2019, 09:38 PM

At least 775 to 800 rwhp it will be a benefit if not stay with the 4". It will require a 103 tb if you want to do the 5". If your staying with the stock TB or a 95mm LT5 stay with the 4"

mark lewis · 05-16-2019, 10:13 AM

Thanks guys. I was kind of thinking the same thing. The 103mm TB suggestion helps. Now I have to decide if I can dish out an extra $1500 (guessing) for the TB and porting work. The flex fuel kit and low side auxiliary system with tune is already going to set me back $3000 (I don't think that's too bad for the power gains I should get) If only I had deeper pockets it would be a no brainer.

05-15-2019, 04:12 PM	#1
mark lewis ROTN APL Drives: 2017 red hot ss Join Date: Jun 2017 Location: south texas Posts: 78	Which Roto-Fab? Big Gulp or Regular? I want to change my air intake on my 2017 SS with a Magnuson supercharger. Im still using the stock throttle body but have a list of other mods (meth,cam,ect…) The car makes around 650 wheel horsepower right now but going back to the shop for some fuel upgrades along with E-85. Will I be making enough power to use the "Big-Gulp" Roto-Fab intake or should I just stick with the regular one that has already been proven? I hear about problems tuning the car with the big gulp if your not making enough power to utilize it.

05-15-2019, 04:45 PM	#2
Joshinator99 Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018 Location: Petersham MA Posts: 4,741	Big Gulp with upsized throttle body should be a nice gain in power for you. __________________ 2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion *1059 WHP/944 WTQ, 9.48@150*

05-15-2019, 09:38 PM	#3
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	At least 775 to 800 rwhp it will be a benefit if not stay with the 4". It will require a 103 tb if you want to do the 5". If your staying with the stock TB or a 95mm LT5 stay with the 4" __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

05-16-2019, 10:13 AM	#4
mark lewis ROTN APL Drives: 2017 red hot ss Join Date: Jun 2017 Location: south texas Posts: 78	Thanks guys. I was kind of thinking the same thing. The 103mm TB suggestion helps. Now I have to decide if I can dish out an extra $1500 (guessing) for the TB and porting work. The flex fuel kit and low side auxiliary system with tune is already going to set me back $3000 (I don't think that's too bad for the power gains I should get) If only I had deeper pockets it would be a no brainer.

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