AFR 185 VS. AFR 205 - Ford Muscle Forums : Ford Muscle Cars Tech Forum
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post #1 of 21 (permalink) Old 03-13-2006, 01:20 PM Thread Starter
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AFR 185 VS. AFR 205

I am building a 331 with roughly 450 horse. This will be in a 2500 pound mustang. This will be a limited use street car. It will spend time at the strip. I don`t want to loose a lot of low end. I want a radical setup, but not too much that it will only be strip oriented. Any opinions ?
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post #2 of 21 (permalink) Old 03-13-2006, 01:40 PM
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AFR 185 VS. AFR 205

Z304's......... just my .02, I do not care for AFR Heads and have blown alot of the off the track....

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post #3 of 21 (permalink) Old 03-13-2006, 03:30 PM
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AFR 185 VS. AFR 205

What cam in your 331?
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post #4 of 21 (permalink) Old 03-13-2006, 07:18 PM
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AFR 185 VS. AFR 205

At least it wasn't another AFR vs TFS thread again!! LOL
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post #5 of 21 (permalink) Old 03-13-2006, 08:33 PM
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AFR 185 VS. AFR 205

Quote:
On 2006-03-13 19:18, EricButler wrote:
At least it wasn't another AFR vs TFS thread again!! LOL
Yeah well, the result would be the same.
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post #6 of 21 (permalink) Old 03-14-2006, 05:05 AM
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AFR 185 VS. AFR 205

You know it !!! Give it some time !! LOL

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post #7 of 21 (permalink) Old 03-14-2006, 07:02 AM Thread Starter
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AFR 185 VS. AFR 205

My cam depends on what heads I choose. I would like a solid roller with at least 240 degrees @ .050". How much of a horsepower and torque difference between the 2.

<font size=-1>[ This Message was edited by: rcm600 on 3/14/06 10:06pm ]</font>
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post #8 of 21 (permalink) Old 03-14-2006, 07:19 AM
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AFR 185 VS. AFR 205

The 185's will work for your goal fine and the 205's will do it to with a little more room for future upgrades and maybe a little less low end torque than the 185's.

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<font size=-1>[ This Message was edited by: dfree383 on 3/14/06 10:21pm ]</font>
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post #9 of 21 (permalink) Old 03-14-2006, 07:24 AM
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AFR 185 VS. AFR 205

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On 2006-03-14 07:02, rcm600 wrote:
My cam depends on what heads I choose......
Now that is a very good answer.

Of the 2 heads you're asking about and the way the car will be used....AFR 205s would be my choice....along with a custom spec'd cam.
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post #10 of 21 (permalink) Old 03-14-2006, 10:43 AM
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AFR 185 VS. AFR 205

If your just looking for 450 hp you may not even need that much cam....

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post #11 of 21 (permalink) Old 03-15-2006, 05:16 AM Thread Starter
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AFR 185 VS. AFR 205

I am not really shooting for a specific # on horsepower. I have just been basing my estimate on common hydraulic roller setups. I like radical setups, thats the whole point of this project. Is 500 realistic on 10.25:1 , AFR205`s, [email protected] .050" solid roller, Victor JR. ? I guess I`ll up my expectations
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post #12 of 21 (permalink) Old 03-15-2006, 07:38 AM
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AFR 185 VS. AFR 205

I just have to ask....Why only 331 if you say you like radical setups?? Don't tell me your affraid of the oil burning issue. 500 flywheel hp is pretty easy these days with the right combo with a 347.

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<font size=-1>[ This Message was edited by: EricButler on 3/15/06 10:39pm ]</font>
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post #13 of 21 (permalink) Old 03-15-2006, 09:37 AM Thread Starter
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AFR 185 VS. AFR 205

You can have a radical setup no matter how many cubes you have can`t you ? This is my first stroker. I have been told 331`s FEEL more lively than 347`s. I like rpms, I think this is a good compromise between torque and rpms. Believe me I have been racking my brain between the 2, and in my opinion this should give me exactly what I want.
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post #14 of 21 (permalink) Old 03-15-2006, 12:33 PM
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AFR 185 VS. AFR 205

Yes I agree you can have a wild setup with any cube engine. Now which will make the most power will always be the larger engine if it is built properly. I believe that the "feel more lively" is bs and just some dude's warped opinion. Just go ask some of the guys that have 347s over on the Hardcore 5.0 board that have N/A 347's that run in the high 10's that are streetable if they aren't as lively as a smaller engine, I guess then if this is the case why would anybody build a 408? I am not going to get into the 331 vs 347 debate. I think that is as dumb as the TFS vs AFR thread that are beat to death on these forums. Both will make a great engine for you starting out. Good luck.
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post #15 of 21 (permalink) Old 03-15-2006, 01:39 PM Thread Starter
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AFR 185 VS. AFR 205

Yes, I agree you can always debate the crap out of anything. Power should be relatively the same except for about 20 lbs. of torque difference, from everyone I have talked to. Why are there so many 331 kits if 347s are the clear choice?
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