3.8 Whipple vs Stock Engine Dyno

[Autopart101]

After fixing a fuel line leak. I decided to install a GripTech 3.25 pulley and make some pulls. Not sure how long the stock Short block will last @1045WHP. Not sure of the boost level as the sensor on the dyno is out of service right now. Car gained almost 100WHP from the 3.50 to 3.25 pulley. Thanks to @DRP Motorsports for the tunning revisions and fast service as always.

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[Joshinator99]

After fixing a fuel line leak. I decided to install a GripTech 3.25 pulley and make some pulls. Not sure how long the stock Short block will last @1045WHP. Not sure of the boost level as the sensor on the dyno is out of service right now. Car gained almost 100WHP from the 3.50 to 3.25 pulley. Thanks to @DRP Motorsports for the tunning revisions and fast service as always.

If you datalogged the pull, just back barometric pressure out of your manifold absolute pressure to get boost. For example, if manifold is 34.7 psi and atmospheric is 14.7, then boost is 20 psi. Yes, I picked easy numbers to work with lol.

Great numbers for a stock block! Thoughts and prayers for your pistons

 

[wingnutt]

Great numbers for a stock block! Thoughts and prayers for your pistons

lol, not throwing shade…but dance with the one that brung ya, until you can’t!

 

[Mach1Racer]

After fixing a fuel line leak. I decided to install a GripTech 3.25 pulley and make some pulls. Not sure how long the stock Short block will last @1045WHP. Not sure of the boost level as the sensor on the dyno is out of service right now. Car gained almost 100WHP from the 3.50 to 3.25 pulley. Thanks to @DRP Motorsports for the tunning revisions and fast service as always.

Hey, what did DRP say was the limit they thought you should stop Aton the STOCK Gen 3 Coyote engine.

This is an awesome setup. I see guys with turbos pushing 1050rwhp in stock bottom ends but don’t see too many supercharger cars doing this.

 

[Autopart101]

Hey, what did DRP say was the limit they thought you should stop Aton the STOCK Gen 3 Coyote engine.

This is an awesome setup. I see guys with turbos pushing 1050rwhp in stock bottom ends but don’t see too many supercharger cars doing this.

DPR and Finishlines think Im skating on Thin Ice. Already shopping for Short Blocks. Plans is 10 rib set up and more boost next year.

 

[Mach1Racer]

DPR and Finishlines think Im skating on Thin Ice. Already shopping for Short Blocks. Plans is 10 rib set up and more boost next year.

What do they think is acceptable? 850, 900, 950, what?

 

[engineermike]

I’d like to know what it will actually hold as long as the tuning, rev limit, and fuel system have everything well controlled. I know drp tends to keep the timing a little conservative which helps manage cylinder pressure.

 

[Mach1Racer]

I’d like to know what it will actually hold as long as the tuning, rev limit, and fuel system have everything well controlled. I know drp tends to keep the timing a little conservative which helps manage cylinder pressure.

Yes, I would like to know because I’m thinking of turn mine up as well.

EngineerMike, what your car holding right now? (RWHP)

 

[engineermike]

EngineerMike, what your car holding right now? (RWHP)

Your guess is literally as good as mine. Local dyno shop shut down. Whipple 3.0, 3.0 pulley (~18 psi), 21 deg timing, etc. I’m logging around 100-105 lb/min airflow.

 

[Mach1Racer]

Your guess is literally as good as mine. Local dyno shop shut down. Whipple 3.0, 3.0 pulley (~18 psi), 21 deg timing, etc. I’m logging around 100-105 lb/min airflow.

must be 9xx rwhp

 

[Autopart101]

What do they think is acceptable? 850, 900, 950, what?

950 seemed to be the point no one wanted to pass without my ok.

 

[HKusp]

must be 9xx rwhp

I would say easily that based on that lb/min consumption. A good rule of thumb is 10whp per lb/min. I know there are a lot of factors that go into it, but I would say it's a pretty safe bet at those numbers, Mike would dyno at least 950whp.

 

[Mach1Racer]

950 seemed to be the point no one wanted to pass without my ok.

Ok, this is what I wanted to know because I’m looking to turn up the wick a little bit and I have not found a general consensus listed in any articles I could find.

I constantly see these TwinTurbo guy pushing 16psi and making 1000+rwhp on stock engine but most Supercharger guys seem to stay 650-850rwhp.

 

[robvas]

Ok, this is what I wanted to know because I’m looking to turn up the wick a little bit and I have not found a general consensus listed in any articles I could find.

I constantly see these TwinTurbo guy pushing 16psi and making 1000+rwhp on stock engine but most Supercharger guys seem to stay 650-850rwhp.

No reason to stay at only 650-700 unless you're limited by pump gas

Remember that turbos are more efficient than superchargers so they are going to making more power either way.

 

[engineermike]

The inherent thermodynamic advantage of turocharging…

IMO 850 is a nice place to live because the engine is reliable, fuel system is simple, and traction is manageable.

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