Roush 200 heads

NOTCH306 · 06-02-2005, 06:46 PM

Does anyone know what a roush 200 head is suposed to flow. I havn't found the specs anywhere. One place said they did it but you have to pay to get on there site.

HotRoddin · 06-02-2005, 11:51 PM

intake
129 @ .200
187 @ .300
232 @ .400
257 @ .500
260 @ .600
264 @ .700

exhaust
117 @ .200
139 @ .300
145 @ .400
140 @ .500
152 @ .600
154 @ .700

average intake= 221.5
average exhaust= 141.2

that came from a website so I have no idea as to it's accuracy.

Rod

NOTCH306 · 06-03-2005, 05:24 AM

thanks! those numbers a little higher than what i came up with when i had mine on the flow bench. I ported them and now my numbers are not adding up so i was wondering what they are suposed to flow.

HotRoddin · 06-04-2005, 01:05 AM

Quote:

Originally Posted by NOTCH306

thanks! those numbers a little higher than what i came up with when i had mine on the flow bench. I ported them and now my numbers are not adding up so i was wondering what they are suposed to flow.

Make sure they measured them with the same inches of water both times, other wise your compairing apples and oranges.

Care to share the before and after numbers ?

I have a set I haven't touched yet, and I would love to know what yours read on the bench, before and after.

Rod

NOTCH306 · 06-05-2005, 10:21 PM

yea i'll get back to you with the numbers real soon

NOTCH306 · 06-07-2005, 05:39 PM

I emailed world products and here is that they say they flow
Intake
173@ .300
212@ .400
233@ .500
242@ .600
250@ .700
Exhaust
114@ .300
123@ .400
130@ .500
134@ .600
135@ .700

When i flowed mine at 28 water pressure they flowed
Intake
125@ .200
177@ .300
215@ .400
238@ .500
249@ .600
250@ .650
Exhaust
105@ .200
129@ .300
151@ .400
157@ .500
165@ .600
167@ .650

Now here is the real shittttttyyyyy part. I ported these at school and i go to wyotech. my instructor has done head porting for like 20 years and gets upwards to 1000 dollars to port a set of heads and is good an what he does. On the intake i did little work...i shrank the valve guide a little and opened up the bowl a small amount. I did very little gasket matching work and then put a finish on it with a 50 grit paper roll. on the exhaust we did the same. I also got a new valve job done on them and here are the numbers
Intake
96@ .200
103@ .300
163@ .400
193@ .500
212@ .600
216@ .650
Exhaust
134@ .200
211@ .300
234@ .400
236@ .500
241@ .600
242@ .650

This stuff is crazy because some how i lost freakin 37 cfm at .600 on the intake and i really didn't do much of anything to them. after i was coming up with these numbers i thought maybe my orginal flow was high for some reason so i email world and yes they were a little high but by only like 5 cfm no big deal. but at the same time i picked up 76 cfm on the exhaust thats crazy. my intrustor said to me i've been doing this a long time and it just doesn't make any sense that the work done on that intake port would hurt that thing at all. maybe he doesn't know what he is talking about i don't know. i am putting my car back on the dyno here soon to see what happens hopefully that will tell the story. you have to figure though that everything involved in that flow with greatly change when fuel is added into the mix. i will keep you guys posted.
Brian

HotRoddin · 06-08-2005, 11:33 PM

Quote:

Originally Posted by NOTCH306

96@ .200
103@ .300
163@ .400
193@ .500
212@ .600
216@ .650
Exhaust
134@ .200
211@ .300
234@ .400
236@ .500
241@ .600
242@ .650

This stuff is crazy because some how i lost freakin 37 cfm at .600 on the intake and i really didn't do much of anything to them. after i was coming up with these numbers i thought maybe my orginal flow was high for some reason so i email world and yes they were a little high but by only like 5 cfm no big deal. but at the same time i picked up 76 cfm on the exhaust thats crazy. my intrustor said to me i've been doing this a long time and it just doesn't make any sense that the work done on that intake port would hurt that thing at all. maybe he doesn't know what he is talking about i don't know. i am putting my car back on the dyno here soon to see what happens hopefully that will tell the story. you have to figure though that everything involved in that flow with greatly change when fuel is added into the mix. i will keep you guys posted.
Brian

That makes very little sense ... the last readings really look like you switched the intake and exhaust numbers ????

From everything i've read about these heads, doing almost precisely what you did (a little valve guide work and some general clean up), will increase the out of the box flow numbers about 5 to 10%

Almost like something wasn't right with the bench the last test ?

Keep us posted, i'm interested to see how this plays out.

Rod

NOTCH306 · 06-13-2005, 05:17 PM

well well well now i find out that our flow bench is all jacked up so my numbers are no where close to being correct. i'll get back to you if i can readjust me numbers to close estimates.

fiveohpatrol · 06-17-2005, 07:26 PM

my advice would be to get rid of those things! A 200cc port that only flows 242cfm @.600 is terrible! My 200cc PTL's flow 296 @ .600

HotRoddin · 06-20-2005, 02:56 AM

Quote:

Originally Posted by fiveohpatrol

my advice would be to get rid of those things! A 200cc port that only flows 242cfm @.600 is terrible! My 200cc PTL's flow 296 @ .600

Flow isn't everything by a long shot. I could find some that flow well over 296 i'm sure, but I wouldn't recommend you toss yours !
The Roush 200's are fairly decent heads for the price, and there are quite a few people using them successfully.

Rod

fiveohpatrol · 06-20-2005, 07:06 AM

You'd be hard pressed to find a true 200cc intake port that flows that much more than 300cfm, yes it can be done, but not by much.

I know flow isn't everything, but you really have to think about it if a 200cc port only flows 240. I mean, even a AFR165 flows more than that!

HotRoddin · 06-21-2005, 01:41 AM

Quote:

Originally Posted by fiveohpatrol

I know flow isn't everything, but you really have to think about it if a 200cc port only flows 240.

You say "I know flow isn't everything", then you go right back to talking about max flow at max lift, without discussing anything else ?

These are budget street/strip heads, nobody ever claimed they were all out race heads, or that they were the best heads on the market.
How many street/strip applications ever see .600 lift ? That rating is pretty much meaningless to the application the heads were designed for.

Rod

fiveohpatrol · 06-21-2005, 07:38 AM

Well flow ISN't everything, but you HAVE to look at it if the numbers are THAT low.

btw, pro toplines are budget heads too

06-02-2005, 06:46 PM	#1
NOTCH306 Registered Member Join Date: May 2005 Location: York, PA Posts: 46	Roush 200 heads Does anyone know what a roush 200 head is suposed to flow. I havn't found the specs anywhere. One place said they did it but you have to pay to get on there site. __________________ 1990 Notch, 306, T-56 trans, 3:73 gears, zex 100 shot, gt-40,z-303 cam, roush 200 heads, powerdyne on the way

06-02-2005, 11:51 PM	#2
HotRoddin cranky old man Join Date: Sep 2001 Location: Longview Texas Posts: 683	Re: Roush 200 heads intake 129 @ .200 187 @ .300 232 @ .400 257 @ .500 260 @ .600 264 @ .700 exhaust 117 @ .200 139 @ .300 145 @ .400 140 @ .500 152 @ .600 154 @ .700 average intake= 221.5 average exhaust= 141.2 that came from a website so I have no idea as to it's accuracy. Rod __________________ Under Construction: 64 Falcon 372 cu in. stroker 1:72 rod ratio 6.250" rods (long rod), Comp Cams XE274 230/236 520/526 @ .050, Scorpion Rollers, Roush 200 irons, 10:1 Keith Blacks, Hedman long tubes, 750 Holley DP, Edelbrock Victor Jr., C4 3500 stall, gears and tires to be anounced.

06-03-2005, 05:24 AM	#3
NOTCH306 Registered Member Join Date: May 2005 Location: York, PA Posts: 46	Re: Roush 200 heads thanks! those numbers a little higher than what i came up with when i had mine on the flow bench. I ported them and now my numbers are not adding up so i was wondering what they are suposed to flow. __________________ 1990 Notch, 306, T-56 trans, 3:73 gears, zex 100 shot, gt-40,z-303 cam, roush 200 heads, powerdyne on the way

06-05-2005, 10:21 PM	#5
NOTCH306 Registered Member Join Date: May 2005 Location: York, PA Posts: 46	Re: Roush 200 heads yea i'll get back to you with the numbers real soon __________________ 1990 Notch, 306, T-56 trans, 3:73 gears, zex 100 shot, gt-40,z-303 cam, roush 200 heads, powerdyne on the way

06-07-2005, 05:39 PM	#6
NOTCH306 Registered Member Join Date: May 2005 Location: York, PA Posts: 46	Re: Roush 200 heads I emailed world products and here is that they say they flow Intake 173@ .300 212@ .400 233@ .500 242@ .600 250@ .700 Exhaust 114@ .300 123@ .400 130@ .500 134@ .600 135@ .700 When i flowed mine at 28 water pressure they flowed Intake 125@ .200 177@ .300 215@ .400 238@ .500 249@ .600 250@ .650 Exhaust 105@ .200 129@ .300 151@ .400 157@ .500 165@ .600 167@ .650 Now here is the real shittttttyyyyy part. I ported these at school and i go to wyotech. my instructor has done head porting for like 20 years and gets upwards to 1000 dollars to port a set of heads and is good an what he does. On the intake i did little work...i shrank the valve guide a little and opened up the bowl a small amount. I did very little gasket matching work and then put a finish on it with a 50 grit paper roll. on the exhaust we did the same. I also got a new valve job done on them and here are the numbers Intake 96@ .200 103@ .300 163@ .400 193@ .500 212@ .600 216@ .650 Exhaust 134@ .200 211@ .300 234@ .400 236@ .500 241@ .600 242@ .650 This stuff is crazy because some how i lost freakin 37 cfm at .600 on the intake and i really didn't do much of anything to them. after i was coming up with these numbers i thought maybe my orginal flow was high for some reason so i email world and yes they were a little high but by only like 5 cfm no big deal. but at the same time i picked up 76 cfm on the exhaust thats crazy. my intrustor said to me i've been doing this a long time and it just doesn't make any sense that the work done on that intake port would hurt that thing at all. maybe he doesn't know what he is talking about i don't know. i am putting my car back on the dyno here soon to see what happens hopefully that will tell the story. you have to figure though that everything involved in that flow with greatly change when fuel is added into the mix. i will keep you guys posted. Brian __________________ 1990 Notch, 306, T-56 trans, 3:73 gears, zex 100 shot, gt-40,z-303 cam, roush 200 heads, powerdyne on the way

06-13-2005, 05:17 PM	#8
NOTCH306 Registered Member Join Date: May 2005 Location: York, PA Posts: 46	Re: Roush 200 heads well well well now i find out that our flow bench is all jacked up so my numbers are no where close to being correct. i'll get back to you if i can readjust me numbers to close estimates. __________________ 1990 Notch, 306, T-56 trans, 3:73 gears, zex 100 shot, gt-40,z-303 cam, roush 200 heads, powerdyne on the way

06-17-2005, 07:26 PM	#9
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	Re: Roush 200 heads my advice would be to get rid of those things! A 200cc port that only flows 242cfm @.600 is terrible! My 200cc PTL's flow 296 @ .600 __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

06-20-2005, 07:06 AM	#11
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	Re: Roush 200 heads You'd be hard pressed to find a true 200cc intake port that flows that much more than 300cfm, yes it can be done, but not by much. I know flow isn't everything, but you really have to think about it if a 200cc port only flows 240. I mean, even a AFR165 flows more than that! __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

06-21-2005, 07:38 AM	#13
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	Re: Roush 200 heads Well flow ISN't everything, but you HAVE to look at it if the numbers are THAT low. btw, pro toplines are budget heads too __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

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