Procharger or Whipple?

[HWill]

If you’re thinking about fuel mileage at all, stay N/A.

You need unlimited fuel budget, plus additives or E30

I agree to stay N/A if worried about fuel mileage.
But you don't need additives or E30 at all.

Supercharger is a way easier install

Gas mileage remains about the same with either unless you floor it, and then it will literally get half the mileage.

if you just cruise around the mileage won't be much less. I can still get over 20mpg in mine.

This not true, they say Centi's get the closest to stock MPG but I never seen it. Even with a Whipple you will get good MPG for a SC but it is a few off of stock.
The drag from the SC and the super safe tune all play in account to the MPG that is different than stock.

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[robvas]

I agree to stay N/A if worried about fuel mileage.
But you don't need additives or E30 at all.




This not true, they say Centi's get the closest to stock MPG but I never seen it. Even with a Whipple you will get good MPG for a SC but it is a few off of stock.
The drag from the SC and the super safe tune all play in account to the MPG that is different than stock.

Whipple at cruise has the bypass is open and you can spin it for almost free

 

[robvas]

Thanks . I just know my co-worker loved the 500 but said gas mileage was terrible. He went back to a corvette.

Not sure what year your friend had but the 2020 GT500 is rated at like 12/18 mpg

same year Corvette is rated like 16/27 mpg

pretty crazy

 

[Q6543]

In fairness to your friend the 500 is REALLY bad, it must have a smaller tank or something, my friend drove from Mi to Fl and he basically had to stop and fill up every 100ish miles… like hour-hour half.. gas station… rinse repeat

 

[GrabberB]

@JimC .....I agree 100% - keeping the strut tower brace is massive and becomes even more important imo the more HP and torque your engine generates. Everyone I know who has added a strut tower brace says they can "feel" the difference. IF I did any engine mod that eliminated the OEM Ford cross engine strut tower brace I would find a way to do a custom welded work around. Yes with the s650 you still have the firewall to individual strut brace pieces but imo the cross tower brace is essential to a healthy and safe front end.

VMP makes a carbon fiber strut tower brace that works with the Whipple supercharger.

 

[HWill]

Whipple at cruise has the bypass is open and you can spin it for almost free

Not technically correct. A bypass will not free up any drag from the crank pulley. It is basically bleeding boost at low rpm. NO boost no need for additional fueling but you are most likely still using more fuel than stock. The drag from the pull is still there and the safe tune and another factory.

No one can really make the argument that after a SC you make the same MPG, you can get close (- a few MPG) if you try to stay out of boost.

 

[robvas]

Not technically correct. A bypass will not free up any drag from the crank pulley. It is basically bleeding boost at low rpm. NO boost no need for additional fueling but you are most likely still using more fuel than stock. The drag from the pull is still there and the safe tune and another factory.

You missed the part where I said whipple. Totally different than a bypass valve on a centri

No one can really make the argument that after a SC you make the same MPG, you can get close (- a few MPG) if you try to stay out of boost.

Like I said you will get about the same. If you're getting significantly worse something is wrong with your tune

 

[HWill]

You missed the part where I said whipple. Totally different than a bypass valve on a centri


Like I said you will get about the same. If you're getting significantly worse something is wrong with your tune

No, they are really not all that different in design between the two and I was referencing the Whipple. I only used the centri as they have less drag and therefore people do claim better mpg. But a bypass work the same as I stated, they do not really spin the huge Whipple rotors for free as you stated.

One of the most impossible things to measure is MPG, too many factors need to be consistent that are out of our control. It is perfectly normal to drop between 2-4mpg sometimes even more.. If that is your "same" range then we agree.

I however do not agree that is something I would tell someone wanting a whipple that is concerned with MPG. No point in having it, if you are not going to use it.

 

[robvas]

No, they are really not all that different in design between the two and I was referencing the Whipple. I only used the centri as they have less drag and therefore people do claim better mpg. But a bypass work the same as I stated, they do not really spin the huge Whipple rotors for free as you stated.

One of the most impossible things to measure is MPG, too many factors need to be consistent that are out of our control. It is perfectly normal to drop between 2-4mpg sometimes even more.. If that is your "same" range then we agree.

I however do not agree that is something I would tell someone wanting a whipple that is concerned with MPG. No point in having it, if you are not going to use it.

Spin a centri by hand and spin a whipple with the bypass open by hand. It's not even close

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