My hemi is finally under way (head flow #'s)

Posted By: The Shadow

My hemi is finally under way (head flow #'s) - 02/18/09 03:00 PM

I was down at FHO yesterday. My pistons arrived so everything has been balanced. The block is getting it's final hone. The heads have the valve job done. They just need final assembly.
Shouldn't be long now. I may even make it out for the first race.

Posted By: The Shadow

Re: My hemi is finally under way - 02/18/09 03:05 PM

Cp's

Posted By: The Shadow

Re: My hemi is finally under way - 02/18/09 03:06 PM

7.1 Olivers

Attached picture 5034569-resize3.JPG

Posted By: 72chrgrally

Re: My hemi is finally under way - 02/18/09 03:12 PM

Looks good Mark, I hope you mean the first OSCA race.
Steve

Posted By: Hemi Allstate

Re: My hemi is finally under way - 02/18/09 03:48 PM

Looking Good!!!

What cubic inch? 572 ?

Mark

Posted By: Blown_Hemi

Re: My hemi is finally under way - 02/18/09 10:01 PM

Quote:

7.1 Olivers

What size rod journals?

Posted By: Bob_Coomer

Re: My hemi is finally under way - 02/18/09 10:02 PM

Which heads? Any flow data? Very nice stuff you have.....Love it

Looks to be maybe pump gas?

Posted By: The Shadow

Re: My hemi is finally under way - 02/18/09 11:36 PM

It's setting up to be a pump gas 547" procharged (d1x) motor. It's not going to be an all out race deal just a healthy street/strip ride.
The rods are 2.2"
The heads are the stage v replacement heads cnc'd by FHO. I'm still waiting for the numbers but IIRC the are 470/330.
Once the mach up is done the pistons will go out for coating.
I'm sure it will be on going for a bit but all the pieces are finally here.

Posted By: atoetly

Re: My hemi is finally under way - 02/19/09 01:08 AM

Looks nice. Are you installing one of those 3/4 race cams?

Posted By: Glen440

Re: My hemi is finally under way - 02/19/09 01:42 AM

Looks good Mark. I guess you'll be running Pro Comp.

Posted By: Kam*Kuda

Re: My hemi is finally under way - 02/19/09 03:56 AM

Sweet, how is the intake coming along?

Attached picture 5036398-mark-intake.jpg

Posted By: The Shadow

Re: My hemi is finally under way - 02/19/09 12:18 PM

Tim at FHO said 3/4 race cams are the ONLY cam to run in a hemi

Glenny we'll have to see
The manifold is out for final welding. It should be complete soon.

Posted By: 72chrgrally

Re: My hemi is finally under way - 02/19/09 04:11 PM

Quote:

The manifold is out for final welding. It should be complete soon.

Before the engine??

Steve

Posted By: Thumperdart

Re: My hemi is finally under way - 02/19/09 04:42 PM

VERY nice.....I want one.

Posted By: The Shadow

Re: My hemi is finally under way (Head flow #'s) - 02/19/09 07:30 PM

Tim sent me some head flow #"s. Hopefully I can get them posted as they are in excel.
I converted them to word.
Seems to work.

Attached File

5037557-headflow.txt (178 downloads)

Posted By: Hemi Allstate

Re: My hemi is finally under way (Head flow #'s) - 02/20/09 07:06 PM

Quote:

Tim sent me some head flow #"s. Hopefully I can get them posted as they are in excel.
I converted them to word.
Seems to work.

Those are some great numbers!

I noticed that you are using the 2.30" intakes and 1.90" exh. Do the Titanium tulip intake valves flow better than stainless?
Looking at the first picture in your post, it appears that the CNC pattern has been smoothed out.

How much does that improve the flow?
Again, those really have great flow numbers!

Congrats.

Mark

Posted By: The Shadow

Re: My hemi is finally under way (Head flow #'s) - 02/20/09 11:12 PM

I'm very please to say the least.

I never asked Tim why he used the tulip valve but I'm sure it's for flow.
He's the man when it comes to the motor I'm just the bank

Tim hand finishes every port and chamber. He also flows every finished port and tweaks them.
According to Tim the slightest variant will cause fluctuations in port flow as well as the valve job.

Posted By: firefighter3931

Re: My hemi is finally under way (Head flow #'s) - 02/21/09 12:15 AM

The new bullet looks awesome Mark

Killer flow numbers...mid 12's should be no problem now.

Ron

Posted By: dart_73_br

Re: My hemi is finally under way (Head flow #'s) - 02/21/09 01:20 AM

Quote:

Killer flow numbers...mid 12's should be no problem now.
Ron

Yeah... with half of the wires....

Posted By: mopar_mark

Re: My hemi is finally under way (head flow #'s) - 02/21/09 09:38 AM

Quote:

I was down at FHO yesterday. My pistons arrived so everything has been balanced. The block is getting it's final hone. The heads have the valve job done. They just need final assembly.
Shouldn't be long now. I may even make it out for the first race.

Stig Jr,
Very nice, Tim does great work & always easy to deal with. If & When, I will go back to Tim for the next motor. When you see him, tell him Mark from England says hi.

Posted By: Kam*Kuda

Re: My hemi is finally under way - 02/21/09 01:47 PM

Quote:

Once the mock up is done the pistons will go out for coating.
I'm sure it will be on going for a bit but all the pieces are finally here.

What coating are you using? Are you doing just the Top and something for the skirt?

Posted By: The Shadow

Re: My hemi is finally under way - 02/21/09 11:02 PM

Ron, wish me luck on the 12's

Mark, I will let Tim know you say hi. Tim's a great guy. This build wouldn't be possible without him.

Rob, The skirts and domes will be done. Just a little added insurance.