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MMS 220 heads....Info, Pics, and discussion inside

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Old 05-19-2015, 03:30 PM
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Racinrik88
I'm just 1 1/2 hrs north of you near Half Moon Bay. What is your
Chassis C5 or F Body?
383 combo MMS 220's with light valves,
MAMOFIED Fast 102 W/ NW 102 TB, Cam 231*/235* .620"/.600"
LSA 114* + 2* ARH 1 7/8 LTs, X Pipe with true duals at least
2 1/2". I will bet this is pretty close to the recipe Tony would
Prescribe for your build + light clutch & wheels/tires.
Been studying and reading all his builds for
The last 8+ years and actually know him pretty well lol.
Have actually gotten 2 MAMOFIED FAST INTAKES and a MAMOFIED
TFS LS3 Package as well. You could not get better advice, products and
service for a street able and violent performer!
Old 05-19-2015, 05:18 PM
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Originally Posted by NAVYBLUE210
Racinrik88
I'm just 1 1/2 hrs north of you near Half Moon Bay. What is your
Chassis C5 or F Body?
383 combo MMS 220's with light valves,
MAMOFIED Fast 102 W/ NW 102 TB, Cam 231*/235* .620"/.600"
LSA 114* + 2* ARH 1 7/8 LTs, X Pipe with true duals at least
2 1/2". I will bet this is pretty close to the recipe Tony would
Prescribe for your build + light clutch & wheels/tires.
Been studying and reading all his builds for
The last 8+ years and actually know him pretty well lol.
Have actually gotten 2 MAMOFIED FAST INTAKES and a MAMOFIED
TFS LS3 Package as well. You could not get better advice, products and
service for a street able and violent performer!
I have a 98 camaro.. I just moved here from Pennsylvania where I did alot of dirt modified racing.. Since there's not a whole lot of racetrack here I'm taking up this camaro project. I almost took a job in half moon, machine shop. It's beautiful there
Old 05-23-2015, 01:05 PM
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Racinrik88
What are the goals for your 98 Camaro Build?
Old 05-23-2015, 01:53 PM
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To do a wheelie!!! Lol I want that all around high hp, high torque monster. Go Street racing, go over to Laguna, go get groceries.. Lol
Old 05-23-2015, 01:59 PM
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Originally Posted by Racinrik88
To do a wheelie!!! Lol I want that all around high hp, high torque monster. Go Street racing, go over to Laguna, go get groceries.. Lol
A mamofied stoker will put you in the game
Old 06-04-2015, 02:45 AM
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Out of curiosity, as it's an AFR casting, does it maintain the CARB status of the 205/210/215 heads? I don't ever "plan" on moving to Cali but if the AF says jump....

One more question, I know the 210cc AFR's lose nothing down low compared to the 205's and gain a bit up top as you mentioned in another post. What about these pieces of automotive art? Another 10cc on an SBE LS1. Would anything significant be lost down low compared to the 205's?

Last edited by Exidous; 06-04-2015 at 07:37 AM.
Old 06-04-2015, 11:17 AM
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Subscribed....
Old 06-04-2015, 10:37 PM
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Originally Posted by Exidous
Out of curiosity, as it's an AFR casting, does it maintain the CARB status of the 205/210/215 heads? I don't ever "plan" on moving to Cali but if the AF says jump....

One more question, I know the 210cc AFR's lose nothing down low compared to the 205's and gain a bit up top as you mentioned in another post. What about these pieces of automotive art? Another 10cc on an SBE LS1. Would anything significant be lost down low compared to the 205's?
Similar scenario....it all revolves around efficiency levels etc.

Also the gains in area under the curve which effect airflow at every RPM and power output....these heads are slightly larger but flow alot more air.

Ratios might be helpful to look at

Our original 205 flowed about 296 cfm = 1.44 CFM per cc
The V2 AFR 210 flowed 302 cfm = 1.44 CFM per cc

The new MMS 220 flows 318 CFM (on a 3.900 bore) = 1.45 CFM per cc so just as efficient which is challenging as ports get larger (actually slightly more efficient), BUT offering alot more peak flow which helps bump the peak torque and HP output of the engine.

Also the mid/high lift numbers of the new 220 are very fat....this head goes almost 10 more CFM at .550 than the 210 flows at it's .600 peak and 15 more CFM over the .600 number of the AFR 205 @ .600 lift. Read that again if you have to cause its a very profound piece of data. That's really going to help fill the cylinder and plays a big role here because your typical .600 lift cam spends alot of time cresting thru .550 on the way up to .600....crossing its peak, and slowly cresting back down till it breaks thru .550 on the way back down. Basically the entire nose of the cam keeps the valve from .550 or higher and back to .550....alot of time is spent with the valve dwelling in that area so while the efficiency ratios of all three heads in question paint a good picture (strong velocity and solid peak amounts of airflow), its not the whole picture and the more you dig the better it looks.

Dont forget the key elements in what makes a head truly great are good airspeed (check), good peak flow (check), and good low and midlift numbers....aka what I like to refer to as "area under the curve" (big check in the case of my new 220's). Its the delicate combination of those three items (not just looking at a peak number) that really determine how effective a cylinder head truly is. Get it all right where you have a good showing of all these things I just mentioned and look out....the engine thinks its under boost based on how many CFM its moving compared to how much more poorly an average head might fill the cylinder.

Its good stuff guys....I love it at least....LOL

Oh regarding smog/CARB etc.....technically AFR never smogged any of the new V2 heads which at this point is their entire product line of AFR LS products. Smog testing was done on the older 205/225 product back in 04' so I'm not sure if just the casting would allow it to technically comply or not and if so if the new MMS product using the same casting would be grandfathered in as well. If you keep the cam tame enough you can still pass the sniffer and that's all most shops typically focus on. That's the most honest answer I could provide at this point.....if I ever get better clarification one way or the other I will update the thread with the info

Cheers,
Tony
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Last edited by Tony @ Mamo Motorsports; 06-04-2015 at 10:42 PM.
Old 06-08-2015, 02:54 AM
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In for some SBE results!

I doubt I'll have any anytime soon.

Just talked to Tony yesterday and have mine on order. Cam and hollow valves and all. Only hope I can tune them justice.
Old 06-21-2015, 08:18 PM
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Thoughts on these head on a forged solid roller 347 with a s484?
Old 06-21-2015, 09:31 PM
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What is a s484?
Old 06-21-2015, 10:01 PM
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84mm billet turbo from BW
Old 06-22-2015, 12:40 AM
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Originally Posted by SCott5
84mm billet turbo from BW
They will work great....the exhaust port is strong.....intake moves alot of air and has a reasonably sized cross section. I know alot of guys who made good power with the 1st design AFR 205's I did back in 04......these heads are a ton better than that head and IMO a good turbo set-up can make stupid power if you get everything else right (can grind etc.)

-Tony
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Old 06-22-2015, 08:33 AM
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Originally Posted by Tony Mamo
They will work great....the exhaust port is strong.....intake moves alot of air and has a reasonably sized cross section. I know alot of guys who made good power with the 1st design AFR 205's I did back in 04......these heads are a ton better than that head and IMO a good turbo set-up can make stupid power if you get everything else right (can grind etc.)

-Tony

Would it be better to email or call you to possibly get a combo together? Did I miss what size cc these come in

Last edited by SCott5; 06-22-2015 at 08:47 AM.
Old 06-22-2015, 11:15 AM
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220 CCs best for 3.90 Bore,
235 CCs for 4.0+ Bore.
Old 06-22-2015, 12:05 PM
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I was referring to the combustion chamber volume/size.. 66/68/70 so I can check to get a rough idea on CR
Old 06-22-2015, 04:41 PM
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Originally Posted by SCott5
I was referring to the combustion chamber volume/size.. 66/68/70 so I can check to get a rough idea on CR
65 cc is the chamber volume (stock) on the 220 head so if you need to lower the CR for boost you need to handle that via piston choice (dish) or gasket thickness

-Tony
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Old 06-22-2015, 06:26 PM
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Originally Posted by Tony Mamo
65 cc is the chamber volume (stock) on the 220 head so if you need to lower the CR for boost you need to handle that via piston choice (dish) or gasket thickness

-Tony
Be better to call or email to talk some options over?
Old 06-22-2015, 07:34 PM
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Originally Posted by Tony Mamo
Similar scenario....it all revolves around efficiency levels etc.

Also the gains in area under the curve which effect airflow at every RPM and power output....these heads are slightly larger but flow alot more air.

Ratios might be helpful to look at

Our original 205 flowed about 296 cfm = 1.44 CFM per cc
The V2 AFR 210 flowed 302 cfm = 1.44 CFM per cc

The new MMS 220 flows 318 CFM (on a 3.900 bore) = 1.45 CFM per cc so just as efficient which is challenging as ports get larger (actually slightly more efficient), BUT offering alot more peak flow which helps bump the peak torque and HP output of the engine.

Also the mid/high lift numbers of the new 220 are very fat....this head goes almost 10 more CFM at .550 than the 210 flows at it's .600 peak and 15 more CFM over the .600 number of the AFR 205 @ .600 lift. Read that again if you have to cause its a very profound piece of data. That's really going to help fill the cylinder and plays a big role here because your typical .600 lift cam spends alot of time cresting thru .550 on the way up to .600....crossing its peak, and slowly cresting back down till it breaks thru .550 on the way back down. Basically the entire nose of the cam keeps the valve from .550 or higher and back to .550....alot of time is spent with the valve dwelling in that area so while the efficiency ratios of all three heads in question paint a good picture (strong velocity and solid peak amounts of airflow), its not the whole picture and the more you dig the better it looks.

Dont forget the key elements in what makes a head truly great are good airspeed (check), good peak flow (check), and good low and midlift numbers....aka what I like to refer to as "area under the curve" (big check in the case of my new 220's). Its the delicate combination of those three items (not just looking at a peak number) that really determine how effective a cylinder head truly is. Get it all right where you have a good showing of all these things I just mentioned and look out....the engine thinks its under boost based on how many CFM its moving compared to how much more poorly an average head might fill the cylinder.

Its good stuff guys....I love it at least....LOL

Oh regarding smog/CARB etc.....technically AFR never smogged any of the new V2 heads which at this point is their entire product line of AFR LS products. Smog testing was done on the older 205/225 product back in 04' so I'm not sure if just the casting would allow it to technically comply or not and if so if the new MMS product using the same casting would be grandfathered in as well. If you keep the cam tame enough you can still pass the sniffer and that's all most shops typically focus on. That's the most honest answer I could provide at this point.....if I ever get better clarification one way or the other I will update the thread with the info

Cheers,
Tony
Dropping some knowledge!

Looks like the 235s would be as efficient as the 220s with 342cfm on a 235cc volume.
Old 06-23-2015, 04:20 PM
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Originally Posted by JakeFusion
Dropping some knowledge!

Looks like the 235s would be as efficient as the 220s with 342cfm on a 235cc volume.
It certainly is.....LOL

Interesting how close they are isn't it!

And whats with the belated response!?.....LOL

I had kind of expected someone to pick up on that response after I first initially typed it and it was as if I never did....no one really paid attention to a post I thought very relevant! (Good job Jake....LOL).....just funny it took weeks to see this commentary.

Scott5.....fill free to call or email.....both work well for me. If you call and I dont pick up I'm either on the other line or working in the shop so leave a message. Best number to try is probably my mobile.....661-714-1317

Regards,
Tony
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