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Old 06-17-2024, 12:29 PM   #1
Saberscar223
 
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7psi whipple 3.0 on stock lt1?

Can the stock LT1 and OEM fuel system handle that? I really don't want to upgrade the fuel system and id be satisfied with the gains id get from 7 psi but would i have to upgrade the fuel system regardless of what psi I run?

Right now I have 2 inch headers, E85 and a CAI.
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Old 06-17-2024, 01:51 PM   #2
KC64
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The 3.0 Whipple and 7 pounds of boost you would be well advised to do a cam package and fuel and have a very reliable car, otherwise you could run low boost and be fine but these cars run on HIGH compression and if you do not do a cam package you would be looking at some problems that are likely to show up.

You could do the Whipple and low boost or Pro Charger says you can run their stage two and not touch a thing other than a tune.


I am saving money as right now my intentions are to do a cam package, pistons, heads along with everything else, do a CAI and tune and run NA and have a nice HP reliable Camaro.

Last edited by KC64; 06-17-2024 at 02:27 PM.
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Old 06-17-2024, 04:37 PM   #3
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Aftermarket cams in most cases with high lift ect are not as reliable as stock cam set ups. A cam is not necessary to make power with boost.
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Old 06-17-2024, 05:34 PM   #4
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Quote:
Originally Posted by Saberscar223 View Post
Can the stock LT1 and OEM fuel system handle that? I really don't want to upgrade the fuel system and id be satisfied with the gains id get from 7 psi but would i have to upgrade the fuel system regardless of what psi I run?

Right now I have 2 inch headers, E85 and a CAI.
E85 is your best bet to make the stock LT1 shortblock live. To run E you will want LT4 in-tank, HPFP, and injectors at a bare minimum.

Quote:
Originally Posted by KC64 View Post
The 3.0 Whipple and 7 pounds of boost you would be well advised to do a cam package and fuel and have a very reliable car, otherwise you could run low boost and be fine but these cars run on HIGH compression and if you do not do a cam package you would be looking at some problems that are likely to show up.

You could do the Whipple and low boost or Pro Charger says you can run their stage two and not touch a thing other than a tune.


I am saving money as right now my intentions are to do a cam package, pistons, heads along with everything else, do a CAI and tune and run NA and have a nice HP reliable Camaro.
Cam is absolutely not needed at 7 psi.

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Aftermarket cams in most cases with high lift ect are not as reliable as stock cam set ups. A cam is not necessary to make power with boost.
Agreed.
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Old 06-17-2024, 08:43 PM   #5
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If you are going to get into the motor a cam is easy to do. You can do a stage one and not do anything but 7 pounds of boost on a Whipple 3.0! Is pushing it on a stock motor.

I have not heard of a shop not doing a cam while they are in there, the four or five shops that I know of all say do a cam package.
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Old 06-17-2024, 08:55 PM   #6
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Originally Posted by KC64 View Post
If you are going to get into the motor a cam is easy to do. You can do a stage one and not do anything but 7 pounds of boost on a Whipple 3.0! Is pushing it on a stock motor.

I have not heard of a shop not doing a cam while they are in there, the four or five shops that I know of all say do a cam package.
You don't have to go inside the motor to install any super charger.
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Old 06-17-2024, 08:57 PM   #7
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Quote:
Originally Posted by KC64 View Post
If you are going to get into the motor a cam is easy to do. You can do a stage one and not do anything but 7 pounds of boost on a Whipple 3.0! Is pushing it on a stock motor.

I have not heard of a shop not doing a cam while they are in there, the four or five shops that I know of all say do a cam package.
7 pounds is *not* pushing it on a stock LT1 running E85. No way.
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Old 06-17-2024, 09:00 PM   #8
KC64
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Correct on a stage one you do not have to go in the motor.


And another fact is the stock catalytic converters are going to heat up nice and toasty, best to run high flow cats to avoid any troubles.

Last edited by KC64; 06-17-2024 at 09:15 PM.
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Old 06-17-2024, 09:26 PM   #9
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Quote:
Originally Posted by KC64 View Post
If you are going to get into the motor a cam is easy to do. You can do a stage one and not do anything but 7 pounds of boost on a Whipple 3.0! Is pushing it on a stock motor.

I have not heard of a shop not doing a cam while they are in there, the four or five shops that I know of all say do a cam package.
wonder why they all recommend a cam?
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Old 06-18-2024, 08:15 AM   #10
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Quote:
Originally Posted by KC64 View Post
If you are going to get into the motor a cam is easy to do. You can do a stage one and not do anything but 7 pounds of boost on a Whipple 3.0! Is pushing it on a stock motor.

I have not heard of a shop not doing a cam while they are in there, the four or five shops that I know of all say do a cam package.
If you are going to get into the motor to install a cam then you should do rods and pistons being the engine has to be torn down to the short block anyway for a cam. Many just pull the engine.

It's not nearly that extensive to install a supercharger. You are literally just pulling the intake manifold and balance off.

That being said, the stock fuel system will be maxed on 7psi with pump gas. You really need to upgrade fuel system and run ethanol on a SBE LT1. A cam is certainly not needed...fuel system is.
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Old 06-18-2024, 08:54 AM   #11
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As others have pointed out, fuel system is a must have especially when upping the Ethanol content. LT1 Direct Injection is going to get spanked on E with boost. The LT4 HPFP should remedy that for a 7 PSI build. If your ride isn't a 1LE, you'll also need to upgrade to the LT4 in-tank pump as well, or something a little meaner than the LT4, since you're dropping the tank anyway.

Also, since you'll be pulling your balancer off anyway, an ATI Super Damper makes for a nice upgrade. A little help to keep the OE oil pump and internals happy, and take the opportunity to replace that front seal while the balancer is off. Which leads to my last suggestion, upgrade the PCV system and get a catch can system on the car. Another quality of life upgrade for the engine. I really like the Mighty Mouse stuff, they have some serious hardware and it looks sharp under the hood.

A cam is going to push your build into another realm of complexity and funding, I wouldn't recommend it until you're good and bored with 7PSI. With a PD setup, 7PSI on E85, you're going to make tire frying power. The next step up is the realm of the absurd in terms of putting power to public asphalt, and it becomes more of a dyno queen and bragging rights than an ability to keep the car planted.
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Old 01-20-2025, 11:47 PM   #12
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First of all, I just wanted to thank you all for your input here. I'm trying to plan out what I want to do with my 18 ss.

It seems like the 3.0 Whipple is packaged from Whipple for a stock 6.2l. I'm considering just going with that because I want to keep it my daily driver on all seasons 7 months of the year.
If I go with the Whipple 3.0 and their tune, and later on in a couple years want to put a mild cam like a 220(?) and get that tuned, would that overtax my fuel system (1LE)? Would it push my HP to a level where I have to throw in more mods to have it all work together?

2018 Camaro SS 1LE w/ a manual.

Thanks
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Old 01-20-2025, 11:56 PM   #13
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Quote:
Originally Posted by 3rd_Will View Post
First of all, I just wanted to thank you all for your input here. I'm trying to plan out what I want to do with my 18 ss.

It seems like the 3.0 Whipple is packaged from Whipple for a stock 6.2l. I'm considering just going with that because I want to keep it my daily driver on all seasons 7 months of the year.
If I go with the Whipple 3.0 and their tune, and later on in a couple years want to put a mild cam like a 220(?) and get that tuned, would that overtax my fuel system (1LE)? Would it push my HP to a level where I have to throw in more mods to have it all work together?

2018 Camaro SS 1LE w/ a manual.

Thanks
yeah it will need a fuel system
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Old 01-21-2025, 05:50 AM   #14
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Originally Posted by Kerry View Post
wonder why they all recommend a cam?

They recommend a cam that closes the exhaust valve later in the cycle (more overlap) which decreases the dynamic compression ratio. This will reduce the cylinder pressure and tolerate more boost and more advanced spark timing.


-Ray
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