VR-200’s…… AGAIN…….

[MOPARMAGA]

Isn't corrected just a way to compare results across dyno's?

Basically it's a number set to a standard pressure temp and altitude if I remember correctly

 

[NC Engine Builder]

They're not bogus they're best case scenario

Trust me, they are often bogus. And on purpose for certain shops.

 

[MOPARMAGA]

Trust me, they are often bogus. And on purpose for certain shops.

I don't doubt it.

 

[PRH]

Corrections for atmospheric conditions are a necessary evil for dyno testing comparisons.

 

[NC Engine Builder]

Corrections for atmospheric conditions are a necessary evil for dyno testing comparisons.

True! But it's a eye opener to see a pull with the correction factor just under 1 percent, and then it reset to 10% for the "hero" pull

 

[74 Cuda]

This is another test engine that I built to prove our VR-200 cylinder headsC

Can you share some head information? I'd like to see the flow numbers at .400", .500", .600" along with the intake valve diameter, throat dia or % and the port length and CC's if possible

 

[fishmens67]

I'd like to see the flow numbers

I already asked, I understand why he won't show them, probably doesn't want to get into a flow bench battle with the naysayers.
Some things are better left to themselves when it comes to custom work.

 

[74 Cuda]

I already asked, I understand why he won't show them, probably doesn't want to get into a flow bench battle with the naysayers.

Some things are better left to themselves when it comes to custom work.

No arguments here just wanted to crunch some numbers. All good

 

[Newbomb Turk]

No arguments here just wanted to crunch some numbers. All good

I’m not sure what the Bloomer brothers would say if you asked them that, but I would say air flow is not at the top of the list of important stuff I look at.

I don’t think airflow is in the top 5 things I worry about.

Shape, shape, shape.

 

[74 Cuda]

The velocity through the curtain area has a major effect on power potential and is also one of the factors used to determine the cam requirements

 

[tvt59]

I don't have flow numbers or air speed. But with a Crower 31409 cam and 11.2 compression you can make 680 hp with the Bloomer heads.

 

[74 Cuda]

Yeah nothing wrong with that

 

[NC Engine Builder]

I believe what I was told is they peak just shy of 300, maybe AT 300 cfm. No idea what lift

 

[Newbomb Turk]

I believe what I was told is they peak just shy of 300, maybe AT 300 cfm. No idea what lift

And that’s totally believable.

 

[NC Engine Builder]

They learned a lot from there first head they offered, the current one is in a whole different league