Motorgen - Automotive Events, Meets, Cruises and Forums

Motorgen - Automotive Events, Meets, Cruises and Forums (http://www.motorgen.com/forum/index.php)
-   RX-Snake (Project Car) (http://www.motorgen.com/forum/forumdisplay.php?f=130)
-   -   RX-Snake: Engine Related (http://www.motorgen.com/forum/showthread.php?t=1054)

joedls 01-09-2009 02:47 PM

Quote:

Originally Posted by Vettezuki (Post 13149)
These heads are "as cast". They need to be ported for maximum awesomeness.

We are going with 195 (I think).

Here are the flow numbers for his CNC Ported 185:
Lift:cfm-in:cfm-out
.100:69:59
.200:129:118
.300:188:153
.400:234:178
.500:269:189
.600:278:195
.700:281:210
.800:288:228

For his CNC Ported 205
.100:71:61
.200:142:124
.300:190:162
.400:252:200
.500:287:218
.600:300:225
.700:305:230
.800:309:235


So, I sort of infer that our flow numbers for a 195 and .550 lift would be
284:207

How's dat?

Not bad. This is for the AFR 205 version.

.100 .200 .300 .400 .500 .600
65 133 192 238 271 292
51 114 173 210 231 236

94cobra69ss396 01-09-2009 03:02 PM

I think those heads would work well and they're about $500 less than AFR.

BRUTAL64 01-09-2009 03:13 PM

Quote:

Originally Posted by Vettezuki (Post 13149)
These heads are "as cast". They need to be ported for maximum awesomeness.

We are going with 195 (I think).

Here are the flow numbers for his CNC Ported 185:
Lift:cfm-in:cfm-out
.100:69:59
.200:129:118
.300:188:153
.400:234:178
.500:269:189
.600:278:195
.700:281:210
.800:288:228

For his CNC Ported 205
.100:71:61
.200:142:124
.300:190:162
.400:252:200
.500:287:218
.600:300:225
.700:305:230
.800:309:235


So, I sort of infer that our flow numbers for a 195 and .550 lift would be
284:207

How's dat?


If the 195's as cast are simular to the 185 CNC then they will work fine. The mid lift is not as good as AFRs (no one is really) but this is a "GOOD" head. I'd still like to see a set. Without a flow bench a clean-up (if needed) is the best way to go.

"In head porting, what you don't do is sometimes more important than what you do do". Brutal :judge:

If I do Porting 101, you will know enough to understand what entailes a good head.:D:drink:

94cobra69ss396 01-09-2009 03:17 PM

Quote:

Originally Posted by BRUTAL64 (Post 13154)
If the 195's as cast are simular to the 185 CNC then they will work fine. The mid lift is not as good as AFRs (no one is really) but this is a "GOOD" head. I'd still like to see a set. Without a flow bench a clean-up (if needed) is the best way to go.

"In head porting, what you don't do is sometimes more inportant that what you do do". Brutal :judge:

If I do Porting 101, you will know enough to understand what entailes a good head.:D:drink:

I'll volunteer my BBC Edelbrock Performer RPM rectangular ports for a porting 101 class. I want to port them anyways so if you want to give a demo on port them all the better. I just have to pull them off the car.

BRUTAL64 01-09-2009 03:31 PM

Quote:

Originally Posted by 94cobra69ss396 (Post 13155)
I'll volunteer my BBC Edelbrock Performer RPM rectangular ports for a porting 101 class. I want to port them anyways so if you want to give a demo on port them all the better. I just have to pull them off the car.

No grinding:rolleyes:, this is 101 pre porting class. Just drawings and verbal abuse. But everyone will learn alot and it's free.;)

94cobra69ss396 01-09-2009 03:41 PM

Quote:

Originally Posted by BRUTAL64 (Post 13158)
No grinding:rolleyes:, this is 101 pre porting class. Just drawings and verbal abuse. But everyone will learn alot and it's free.;)


Is this going to be like the porting section in the How to Hot Rod a Big Block Chevy book? I learned a lot from that book when I ported my old oval ports. It actually gives info that's useful for all types of heads.

BRUTAL64 01-09-2009 03:47 PM

Quote:

Originally Posted by 94cobra69ss396 (Post 13160)
Is this going to be like the porting section in the How to Hot Rod a Big Block Chevy book? I learned a lot from that book when I ported my old oval ports. It actually gives info that's useful for all types of heads.

Yes and No. There will be great in sight and years or experiance put into easily understood words. You don't have to listen if you feel you have nothing to learn.:p

I'm going to go over basics and the big NO NOs. :D

Leedom 01-09-2009 04:06 PM

Quote:

Originally Posted by BRUTAL64 (Post 13161)
Yes and No. There will be great in sight and years or experiance put into easily understood words. You don't have to listen if you feel you have nothing to learn.:p

I'm going to go over basics and the big NO NOs. :D

Glenn as a teacher, that is a scary thought.:laugh: I like to live life on the edge though so I will sign up for the class.

94cobra69ss396 01-09-2009 04:11 PM

Quote:

Originally Posted by BRUTAL64 (Post 13161)
Yes and No. There will be great in sight and years or experiance put into easily understood words. You don't have to listen if you feel you have nothing to learn.:p

I'm going to go over basics and the big NO NOs. :D

I'd love to see it but Phil and I are going to be swapping the engine in his Jimmy.

BRUTAL64 01-09-2009 04:13 PM

Quote:

Originally Posted by Leedom (Post 13162)
Glenn as a teacher, that is a scary thought.:laugh: I like to live life on the edge though so I will sign up for the class.

Actually, I have done TECH classes here at CI for years.:smack:


All times are GMT -7. The time now is 04:24 AM.

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.