BBC Brodix Race Rite 270cc oval port flow numbers - Chevelle Tech
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post #1 of 43 (permalink) Old Nov 1st, 13, 11:23 PM Thread Starter
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Eric
 
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BBC Brodix Race Rite 270cc oval port flow numbers

just flowed a set of out of the box Brodix Race Rite oval port 270cc head. Here is the data

2.25/1.88 back cut on intake tulip exhaust valve
Throat
Long and Short runner 90%throat
Long and short runner bowl 91%
Short side long runner 2.93Csa
Short side short Runner 3.01CSA
Pinch Long runner 2.72CSA
Pinch Short Runner 2.74CSA

Flowed on a 4.310 bore

Intake Long
.1-77
.2-155
.3-219
.4-259
.5-292
.6-313
.7-320
.8-321
.9-316
1.0-311

Intake Short
.1-78
.2-148
.3-210
.4-252
.5-280
.6-305
.7-318
.8-327
.9-326
1.0-331

Exhaust no pipe
.1-59
.2-100
.3-128
.4-158
.5-183
.6-205
.7-225
.8-239
.9-252

Eric Weingartner
Weingartner Racing LLC
918-520-3480

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post #2 of 43 (permalink) Old Nov 1st, 13, 11:36 PM
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

Thats about what Ive seen out of them.
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post #3 of 43 (permalink) Old Nov 2nd, 13, 5:31 AM
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

Quote:
Originally Posted by Eric Weingartner View Post
just flowed a set of out of the box Brodix Race Rite oval port 270cc head. Here is the data

2.25/1.88 back cut on intake tulip exhaust valve
Throat
Long and Short runner 90%throat
Long and short runner bowl 91%
Short side long runner 2.93Csa
Short side short Runner 3.01CSA
Pinch Long runner 2.72CSA
Pinch Short Runner 2.74CSA

Flowed on a 4.310 bore

Intake Long
.1-77
.2-155
.3-219
.4-259
.5-292
.6-313
.7-320
.8-321
.9-316
1.0-311

Intake Short
.1-78
.2-148
.3-210
.4-252
.5-280
.6-305
.7-318
.8-327
.9-326
1.0-331

Exhaust no pipe
.1-59
.2-100
.3-128
.4-158
.5-183
.6-205
.7-225
.8-239
.9-252
Eric, Are you planning to do any work to these heads?

'69 Chevelle 416" LSA TONY MAMO TFS Heads and custom Hyd roller cam.
Best 60' so far....1.34


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post #4 of 43 (permalink) Old Nov 2nd, 13, 11:10 AM
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

Those numbers are significantly less than what Brodix claims:

RR BB-O (non CNC)
2.250 Intake: .2=159, .3=223, .4=270, .5=314, .6=334, .7=340
1.880 Exhaust: .2=116, .3=145, .4=172, .5=196, .6=217, .7=236

A
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fer cyrin out loud, it's that IMPALA guy again.
If I recall correctly my memory is excellent. My ability to access it is not.

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post #5 of 43 (permalink) Old Nov 2nd, 13, 12:14 PM
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

CNC chamber option?
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post #6 of 43 (permalink) Old Nov 2nd, 13, 1:09 PM Thread Starter
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Eric
 
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

Quote:
Originally Posted by Pat_McNeil View Post
Eric, Are you planning to do any work to these heads?

Yes the full treatment for a 468bbc they will end up about 290cc when done.

Eric Weingartner
Weingartner Racing LLC
918-520-3480

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post #7 of 43 (permalink) Old Nov 2nd, 13, 1:09 PM Thread Starter
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

Quote:
Originally Posted by tt 383 View Post
CNC chamber option?

No cnc chamber but they come with CNC bowl blend and gasket match.

Eric Weingartner
Weingartner Racing LLC
918-520-3480

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post #8 of 43 (permalink) Old Nov 2nd, 13, 1:12 PM Thread Starter
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Eric
 
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

Quote:
Originally Posted by ss3964spd View Post
Those numbers are significantly less than what Brodix claims:

RR BB-O (non CNC)
2.250 Intake: .2=159, .3=223, .4=270, .5=314, .6=334, .7=340
1.880 Exhaust: .2=116, .3=145, .4=172, .5=196, .6=217, .7=236

Welcome to my world. I am use to this from just about every manufacture although the BB-2plus were close to their numbers. Brodix could have flowed it on a bigger bore that usually helps but not that much. I have a 4.625bore I may flow it on it if I find time today.

Eric Weingartner
Weingartner Racing LLC
918-520-3480

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post #9 of 43 (permalink) Old Nov 2nd, 13, 1:24 PM
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Darren
 
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

I know mine are the rect port version, but Brodix's flow numbers between the 270 oval and the 294 rect port heads usually show very close to one another. Listed below is what my CNC chambered 294's flowed untouched, before porting. Mine was flowed on a 4.310" bore.

Intake Exhaust
.100” 73 / 62
.200” 158 / 110
.300” 226 / 145
.400” 280 / 176
.500” 322 / 200
.600” 335 / 221
.700” 343 / 233
.800” 347 / 236
.900” 349 / 238

Darren
1971 Chevelle
496
CFM Ported Stage 5 Brodix Race-Rites 310cc
10.5 scr
Ultradyne Solid Roller 256/264 .660/.660 108 lsa
CFM Ported Victor Jr / Pro Systems Venom VX 1050
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12 Bolt TrueTrac, 4.56 gear 33 spline Moser axles
30x12.5 ET Street Radial
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post #10 of 43 (permalink) Old Nov 2nd, 13, 1:29 PM
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

From about 5 or 6 years ago with the CNC chamber on a 4.530 bore
Perf RPM #60459 290cc Intake port 2.19x1.88 110cc chamber
.050 - 41/ 32
.100 - 73/ 64
.200 - 148/119
.300 - 218/149
.400 - 268/179
.500 - 304/207
.600 - 317/229
.700 - 319/245
================
RR OVAL 270cc port CNC chamber
.050 - 42/33
100 - 77/65
200 - 152/118
300 - 224/147
400 - 283/178
500 - 318/205
600 - 344/230
700 - 347/248
=============
RR Rect 290cc port CNC chamber intake only
050 - 41
100 - 80
200 - 153
300 - 227
400 - 280
500 - 319
600 - 345
700 - 352
==============
AFR 315 CNC
4.530" ===========4.310" bore
..050 - 40/34 =======43.4
.100 - 78/69 ========78.1

.200 - 164/142.5 =====162.3
.300 - 247/198 ======239.5
.400 - 309/240====== 290
.500 - 350/267 ======334.4
.600 - 375/280 ======358.3
.700 - 383/283 ======374
.800 - 381/286 ======377


All tests @ 28", radius inlet, no pipe, 4.530 bore except the 315 intake on the 4.310 bore

Mike (Wolfplace)
VISIT US AT

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post #11 of 43 (permalink) Old Nov 2nd, 13, 1:49 PM
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

From my experience talking with local builders, AFR numbers are usually pretty close to what they advertise.

When USA Race Engines checked my AFR 290's they said they were as good as it gets, especially on the exhaust side.

It does a manufacturer no good to publish exaggerated numbers when they know that many top builders WILL check them.

'67 Chevelle Malibu, Catalina Blue, 540 inch Rat, Air Flow Reasearch 290 CNC Heads heads, Custom Hyd Roller, .675 lift, 234, 244 at .050, Lemons Headers, Holley Multiport Fuel Injection, TCI 6X 6Speed Automatic, 12 bolt Posi Eaton TruTrac, 3:31 Richmond Gears, front and rear power disc brakes, Global West Suspension, etc.

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Last edited by jackie schmidt; Nov 2nd, 13 at 2:09 PM.
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post #12 of 43 (permalink) Old Nov 2nd, 13, 7:36 PM
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

Please keep us posted on what you find. I really appreciated the vortec thread you had on speedtalk as you worked them with differing valve sizes and what port work was showing benefits. These heads deserve a thread like that.
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post #13 of 43 (permalink) Old Nov 2nd, 13, 8:26 PM
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

Eric, correct me if I am wrong but I think your bench reads a just hair lower than most?
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post #14 of 43 (permalink) Old Nov 5th, 13, 8:55 AM Thread Starter
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

I flowed them on the 4.625bore yesterday here are the results

Intake Long
.1-79
.2-152
.3-215
.4-260
.5-298
.6-321
.7-327
.8-314
.9-313
1.0-314

Intake short
.1-78
.2-149
.3-217
.4-263
.5-297
.6-318
.7-335
.8-338
.9-337
1.0-335

Ex
.1-56
.2-99
.3-128
.4-157
.5-181
.6-205
.7-224
.8-238
.9-251

Eric Weingartner
Weingartner Racing LLC
918-520-3480

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post #15 of 43 (permalink) Old Nov 5th, 13, 9:00 AM Thread Starter
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Re: BBC Brodix Race Rite 270cc oval port flow numbers

Quote:
Originally Posted by tt 383 View Post
Please keep us posted on what you find. I really appreciated the vortec thread you had on speedtalk as you worked them with differing valve sizes and what port work was showing benefits. These heads deserve a thread like that.
I will try to do a thread like that but I will not be playing with different valve sizes. This is going to stay a 2.25 valve because of the motor it is going on. However I am very busy right now and these heads I will not be getting to right away.

My bench does read lower than most, I actually think it reads accurate but so does everybody else. I am fine with it reading lower than most I would rather under promise and over deliver than over promise and under deliver.

Eric Weingartner
Weingartner Racing LLC
918-520-3480

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