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Author Topic: angle flow heads  (Read 71177 times)
ugly duckling
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« Reply #30 on: December 07, 2010, 02:00:14 am »

that's the Cly head and case unit only. mom uses the cleaner unit. yea i gusse it could use a SPIT SHINE.  .UD. 
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danny gabbard
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gabfab


« Reply #31 on: December 07, 2010, 03:25:56 am »

I take it useing that heating plate, You never have anything on the back burner ?  Looks great jeff ! One question on getting the valve to line with seat, Your not useing a hand drill right ?
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A poor craftsman, Blame's it on poor tools.  GAB-FAB shop # 775 246-3069
TexasTom
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12.58@106, 7.89@89 Texas Motorplex 10/18/09


« Reply #32 on: December 07, 2010, 04:01:50 am »

.010 press [ Attachment: You are not allowed to view attachments ] [ Attachment: You are not allowed to view attachments ] UD. 
Don't give away all your secrets! ... Like anyone could/will reproduce! Wink
Do they make those in a single port configuration??? Grin

These pics are giving me ... well, they give me excitement ...  Cheesy Shocked Cheesy Grin
« Last Edit: December 07, 2010, 04:06:44 am by TexasTom » Logged

Work, work, WORK!

Modesty accepted here ...
ugly duckling
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« Reply #33 on: December 08, 2010, 07:49:38 am »

did the ex seat install this afternoon. 12/7/10. ex seat size 1.630/375 tall.  UD.
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ugly duckling
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« Reply #34 on: December 08, 2010, 07:53:12 am »

on to tomorrow.
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Udo
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« Reply #35 on: December 08, 2010, 20:49:31 pm »

Don't you cool down the seats and cut them for inside diameter before installing them ?

Udo
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ugly duckling
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« Reply #36 on: December 08, 2010, 22:50:41 pm »

boring the int seats out for the proper port to seat alinment with out welding or plastic.
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jamiep_jamiep
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« Reply #37 on: December 09, 2010, 00:12:18 am »

Really finding it interesting seeing what goes into turning a set of castings into a working set of heads, great stuff UD thanks for sharing it!
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ugly duckling
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« Reply #38 on: December 10, 2010, 05:56:12 am »

ok there ready for the porting bench.  Cry Smiley UD . 
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TexasTom
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« Reply #39 on: December 10, 2010, 20:28:13 pm »

Git R Dun! Cheesy Cheesy
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Work, work, WORK!

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Rick Meredith
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« Reply #40 on: December 10, 2010, 20:31:49 pm »

Texas Tom even has the right accent for that  Grin
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58vw
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« Reply #41 on: December 10, 2010, 22:55:19 pm »

ummm....buddy.....there is only one pair their i see....dont forget the other pair.....after all you have two hands dont you....one grinder in each....ill bring the monster/red bull for ya.....haha jk ...
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www.4inbore.com
Angleflows...order them now
redbluebug
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« Reply #42 on: December 11, 2010, 02:00:46 am »

Hi UD!   Is the head in the background on the stovetop from cheese country? Wink   
Keep on keeping on bud. Cool
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ugly duckling
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« Reply #43 on: December 11, 2010, 03:30:50 am »

Hey there farmer long time.yea those are from velveta ville. Ill be takeing some picturs of those soon as well.good see N ya.take care.
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ugly duckling
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« Reply #44 on: December 12, 2010, 00:17:46 am »

making some CONSERVTIVE intake chips . UD .
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ugly duckling
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« Reply #45 on: December 13, 2010, 23:35:15 pm »

as some of you already know these heads are not perfect out of the box. what ACVW head is. this is an area to me any way  that i want to refine a little better. so i did and the result is a better transition from the top of the port to the seat. i feel better now i can move onward. X MARKS THE SPOT. UD .
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ugly duckling
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« Reply #46 on: December 13, 2010, 23:43:38 pm »

will probebly catch some cr!!p for those shots oh well. i would be lying to you if i said everything was all ROSEY. maybe if you had a HAIR DRYER ON TOP  it wouldent care. UD .
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pig1200
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« Reply #47 on: December 16, 2010, 23:46:29 pm »

Good Job
I did the same thing on my angle flows a couple monthes ago, and also added some flanges on the intake and exhaust ports...
I'm stacked for the moment because I am still waiting for 54x40 Ti valves from DRD to continue!!!

more pic
http://blackhands.skynetblogs.be/2854-cc/

Cédric
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ugly duckling
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« Reply #48 on: December 17, 2010, 06:58:32 am »

looking good there cedric. looks like you have some nice tools to get the job done. thanks for sharing Wink.    UD .
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pig1200
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« Reply #49 on: December 17, 2010, 09:29:07 am »

thx Jeff
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BeetleBug
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Snabba grabben...


« Reply #50 on: December 17, 2010, 10:07:33 am »

Sweet lord that is some HUGE intakes pig 1200. How big is the intake valve and how high up the rpms do you plan to go to make them work?

Best rgs
BB
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Neil Davies
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« Reply #51 on: December 17, 2010, 10:19:58 am »

Sweet lord that is some HUGE intakes pig 1200. How big is the intake valve and how high up the rpms do you plan to go to make them work?

Best rgs
BB

 Shocked

He's not going to have carbs, just a tanker with a really long hose pouring fuel straight into the heads... Cheesy
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2007cc, 48IDFs, street car. 14.45@93 on pump fuel, treads, muffler and fanbelt. October 2017!
BeetleBug
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Snabba grabben...


« Reply #52 on: December 17, 2010, 11:05:15 am »

It`s not gonna work unless you put some air in the mix   Wink

Let`s play around with JPM`s formulas and constants just for fun. Looking at the pictures I assume that the narrowest area in the port will be the intake valve and it is quite easy to find out how much rpm a valve will be good for:

RPM = 3300000 x Port dia x Port dia / Bore x Bore x Stroke  We can play around with different port sizes starting with 88% of the smallest area in the port.

50mm valve x 0.88 = 44mm
50mm valve x 0.90 = 45mm
50mm valve x 0.92 = 46mm

52mm valve x 0,88 = 45.8mm
52mm valve x 0.90 = 46.8mm
52mm valve x 0.92 = 47.8mm

101.6 x 101.6 x 88 = 908385

50mm valve calculations:

3300000 x 44 x 44 / 908385 = 7033 rpms
3300000 x 45 x 45 / 908385 = 7356 rpms
3300000 x 46 x 46 / 908385 = 7687 rpms

52mm valve calculations:

3300000 x 45.8 x 45.8 / 908385 = 7620 rpms
3300000 x 46.8 x 46.8 / 908385 = 7956 rpms
3300000 x 47.8 x 47.8 / 908385 = 8300 rpms

This is the rpms where the engine will peak - in theory. Now that we have the rpms we`re able to find the HP with a new formula:

HP = Displ x rpm x Bmep / 910

50mm intake valve:

2.854 x 7033 x 12.5 / 910 = 275hp
2.854 x 7356 x 12.5 / 910 = 288hp
2.854 x 7687 x 12.5 / 910 = 301hp

52mm intake valve:

2.854 x 7620 x 12.5 / 910 = 298hp
2.854 x 7956 x 12.5 / 910 = 311hp
2.854 x 8300 x 12.5 / 910 = 325hp

Fun isn`t it.  Smiley

Best rgs
BB
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10.41 - 100ci - 1641ccm - 400hp
BeetleBug
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Snabba grabben...


« Reply #53 on: December 17, 2010, 12:29:51 pm »

I just noticed that pig1200 is waiting for some 54mm titanium valves. Let us still consider that the valve represents the narrowest area in the intake port:

54mm valve x 0.88 = 47.5mm
54mm valve x 0.90 = 48.6mm
54mm valve x 0.92 0 49.7mm

101.6 x 101.6 x 88 = 908385
 
3300000 x 47.5 x 47.5 / 908385 = 8196 rpms
3300000 x 48.6 x 48.6 / 908385 = 8580 rpms
3300000 x 49.7 x 49.7 / 908385 = 8973 rpms

HP = Displ x rpm x Bmep / 910

2.854 x 8196 x 12.5 / 910 = 321hp
2.854 x 8580 x 12.5 / 910 = 336hp
2.854 x 8973 x 12.5 / 910 = 351hp

Now we`re talking  Smiley So if pig1200 opens up the intake to 49.7mm (92% of the 54mm valve) and is able to rev the 2.8l engine up to 8973 rpms it should in theory produce a wopping 351hp or 123hp pr litre. If it was as easy to build a engine like that as it is to calculate the effect I guess everyone would have done it.

Sorry for all the bla bla bla..

Best rgs
BB
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10.41 - 100ci - 1641ccm - 400hp
bedjo78
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« Reply #54 on: December 17, 2010, 12:46:29 pm »


I got 4 inc bore case and piston set from Jeff. Very accurate with what i need....very well prepared and exact deck height. i would get second case soon after year end
for back up motor.....
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Fasterbrit
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« Reply #55 on: December 17, 2010, 19:49:40 pm »

Nice calculations Kalle! Now all he needs on that motor is a hairdryer  Cool
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Harry/FDK
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Every Rule Was Made To Break, Even Callook...


« Reply #56 on: December 17, 2010, 20:32:09 pm »

Cedric, Bi-Turbo and 8 Injectors ?  Cheesy
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Done ? Not Yet.
ugly duckling
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« Reply #57 on: December 17, 2010, 23:00:12 pm »

my original 187 inch 52x38 port job. this port originally was the big round until i added a LITTLE material 360 of the port. rpm from 1500 to 5900 chaise dyno was 215hp and 215tq with 51.5 Ida,s. 91Oct 10.2 comp fk44 cam.
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vintagewagenwerks
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« Reply #58 on: December 18, 2010, 12:27:31 pm »

what kind of advantage takes the angled exhaust channel in this head against the a superflow head? Some work on a header kann take this angle too .
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It´s better to burn out than to fade away.
TexasTom
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« Reply #59 on: December 18, 2010, 16:13:42 pm »

I would think one of the main advantages is less heat absorbed into the head in the exhaust port because the gasses aren't being constricted through as sharp of a bend; ~45* versus 90* on a superflo.
Also, having tested a pair of these on a flowbench, I can tell you the exhaust port flows VERY well and unrestricted with minimal work ... that's why they're popular with the turbo crowd.
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Work, work, WORK!

Modesty accepted here ...
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