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AFR 205's cam match

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Old 07-01-2010, 02:46 PM
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Default AFR 205's cam match

hello guys...soon i will be doing a H/C/I swap on a 98 stock bottom end camaro that will be running on a 175 wet shot with a diret port.i have afast 102/102 setup and a set of AFR 205s head with the upgraded 8019 spring good to .650" lift now i need to get good matching cam for this heads and i was looking at the tsp ms3 cam wcich i've heard a lot of good thing about....can any of you guys tell me whats would be the best matching cam for this heads, also de car is not a DD so i dont mind a loopie cam. thanks alot for any imput and sorry for the long post
Old 07-01-2010, 02:52 PM
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Originally Posted by javier1730
hello guys...soon i will be a H/C/I swap on a 98 sto k bottom end camaro that will be running on a 175 wet shot with a diret port.i have afast 102/102 setup and a set of AFR 205s head with the upgraded 8019 spring good to .650" lift now i need to get good matching cam for this heads and i was looking at the tsp ms3 cam wcich i've heard a lot of good thing about....can any of you guys tell me whats would be the best matching cam for this heads, also de car is not a DD so i dont mind a loopie cam. thanks alot for any imput and sorry for the long post
Will you be flycutting your stock pistons to fit a "loopie" cam??

-Tony
Old 07-01-2010, 03:05 PM
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Originally Posted by Tony Mamo @ AFR
Will you be flycutting your stock pistons to fit a "loopie" cam??

-Tony
no i dont plant on fly cutting...i would like simple swap..i just want to get cam that would perform good with the heads..what i meant with loopie is that the can doesn't have to be much of street frienly cam...i know that big is not always better so dont really care about cam size as long as it work good with the heads
Old 07-01-2010, 03:14 PM
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I have 62cc AFR 205's and a .040 cometic MLS gasket.
I had to cut for my VRX4 (228/230 .588/.592 on a 112)

Just my $.02 .

Look around, there are TONS of people who run this combo, with numerous cams, and make big power. s.e.a.r.c.h.
Old 07-01-2010, 03:21 PM
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Originally Posted by STEEPSS
I have 62cc AFR 205's and a .040 cometic MLS gasket.
I had to cut for my VRX4 (228/230 .588/.592 on a 112)

Just my $.02 .

Look around, there are TONS of people who run this combo, with numerous cams, and make big power. s.e.a.r.c.h.
thanks for the info..well like i said i want to get the most out of my heads so if everything comes down to fly cutting i guess i will then. thanks again
Old 07-01-2010, 04:31 PM
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Originally Posted by STEEPSS
I have 62cc AFR 205's and a .040 cometic MLS gasket.
I had to cut for my VRX4 (228/230 .588/.592 on a 112)

Just my $.02 .

Look around, there are TONS of people who run this combo, with numerous cams, and make big power. s.e.a.r.c.h.
how much you had to fly cut for that cam...and whats your comp. at
Old 07-01-2010, 04:39 PM
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I would use the AFR cam that was designed for those heads,or get a EPS cam.big cam dose not make big power.the ms3 won't torque out as good as the other cams suggested.
Old 07-01-2010, 06:19 PM
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Originally Posted by STEEPSS
I have 62cc AFR 205's and a .040 cometic MLS gasket.
I had to cut for my VRX4 (228/230 .588/.592 on a 112)

Just my $.02 .

Look around, there are TONS of people who run this combo, with numerous cams, and make big power. s.e.a.r.c.h.
You could have sneaked it in there on a 114 LSA....(wider LSA gives you more P to V)

I was going to suggest that to the OP

228/230 on a 114

Mill the heads to 62.....040 gasket....yields a pretty stout good all around combo without the hassle of flycutting.

-Tony
Old 07-01-2010, 06:25 PM
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Originally Posted by Tony Mamo @ AFR
You could have sneaked it in there on a 114 LSA....(wider LSA gives you more P to V)

I was going to suggest that to the OP

228/230 on a 114

Mill the heads to 62.....040 gasket....yields a pretty stout good all around combo without the hassle of flycutting.

-Tony
Hey tony I recently had some engine work on my vehicle. I was roughly .0002 out of the hole and afr heads milled to 62cc and using cometic 0.051 gasket. I am around 10:9:4 compression. The builder said he did want to go any further risking pushing the compression. Did I miss the mark? if so by how much? Cam is 224/228/114+2 .581/588 He wanted to be safe with it. Also I dynoed @ 430 rwhp 400 Trq SAE with 29 degrees of timing up top from 5800 to 6500 rpms.
Old 07-01-2010, 06:38 PM
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Originally Posted by corvet786c
Hey tony I recently had some engine work on my vehicle. I was roughly .0002 out of the hole and afr heads milled to 62cc and using cometic 0.051 gasket. I am around 10:9:4 compression. The builder said he did want to go any further risking pushing the compression. Did I miss the mark? if so by how much? Cam is 224/228/114+2 .581/588 He wanted to be safe with it. Also I dynoed @ 430 rwhp 400 Trq SAE with 29 degrees of timing up top from 5800 to 6500 rpms.
On 92-93 octane you missed by half a ratio or so....

11.4-11.5 is where I would have set the static CR at....but I would have tightened the quench and ran a .040 gasket as well which is also important and helps improve resistance to detonation as well as make a little more power.

It's these finer details which separate a good combo from a really a good combo.

All the nickels and dimes add up....thats why you can see big swings in power output from combinations that at a quick glance look very similar.

-Tony
Old 07-01-2010, 06:55 PM
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Good stuff Tony! Thanks!
Old 07-01-2010, 06:55 PM
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Originally Posted by Tony Mamo @ AFR
On 92-93 octane you missed by half a ratio or so....

11.4-11.5 is where I would have set the static CR at....but I would have tightened the quench and ran a .040 gasket as well which is also important and helps improve resistance to detonation as well as make a little more power.

It's these finer details which separate a good combo from a really a good combo.

All the nickels and dimes add up....thats why you can see big swings in power output from combinations that at a quick glance look very similar.

-Tony
I understand what you are saying and I agree with you, just some of the builders around here don't know why are hesitant to put thinner gaskets on. Just asking do you know why they wont? For a product that has proven itself, why dont they just follow your instructions for these heads?
Old 07-01-2010, 06:58 PM
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Originally Posted by corvet786c
Hey tony I recently had some engine work on my vehicle. I was roughly .0002 out of the hole and afr heads milled to 62cc and using cometic 0.051 gasket. I am around 10:9:4 compression. The builder said he did want to go any further risking pushing the compression. Did I miss the mark? if so by how much? Cam is 224/228/114+2 .581/588 He wanted to be safe with it. Also I dynoed @ 430 rwhp 400 Trq SAE with 29 degrees of timing up top from 5800 to 6500 rpms.
Originally Posted by corvet786c
I understand what you are saying and I agree with you, just some of the builders around here don't know why are hesitant to put thinner gaskets on. Just asking do you know why they wont?
I dont remember the details exactly but it had some I believe to do with how much your piston came out of the cylinder compared to other motors.

430 you new dyno numbers?


To op sorry for the hi-jack.
I went with an AFR cam 224/224 or 224/228 I can't remember right now

Last edited by 98PurpleT/A; 07-01-2010 at 07:04 PM.
Old 07-01-2010, 07:04 PM
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Originally Posted by 98PurpleT/A
I dont remember the details exactly but it had some I believe to do with how much your piston came out of the cylinder compared to other motors.

430 you new dyno numbers?
Probably now 435 rwhp I just took the cats off and put a magnaflow muffler on. Totally staright thru. according to the builder in fla, I thought I had enough p to v clearence for the cometic 40's.
Old 07-01-2010, 08:07 PM
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Originally Posted by Tony Mamo @ AFR
You could have sneaked it in there on a 114 LSA....(wider LSA gives you more P to V)

I was going to suggest that to the OP

228/230 on a 114

Mill the heads to thanks for yhe help guys..Tony with that 62.....040 gasket....yields a pretty stout good all around combo without the hassle of flycutting.

-Tony
thanks guys for the info...Tony with that set up you recommended, where my comp will, and how much power could i expect from it? also would you recomend flycutting or not?
Old 07-01-2010, 08:33 PM
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Originally Posted by corvet786c
Hey tony I recently had some engine work on my vehicle. I was roughly .0002 out of the hole and afr heads milled to 62cc and using cometic 0.051 gasket. I am around 10:9:4 compression. The builder said he did want to go any further risking pushing the compression. Did I miss the mark? if so by how much? Cam is 224/228/114+2 .581/588 He wanted to be safe with it. Also I dynoed @ 430 rwhp 400 Trq SAE with 29 degrees of timing up top from 5800 to 6500 rpms.
I have the same combination but the heads were milled to 60cc so Tony could work the chambers back out to 62cc. I used a 0.040" Cometic and the 224/228 fit, but barely. I was slightly under minimum with a dial indicator measurement of PTV on the intake. I wasn't too worried though because the minimum PTV was 10 degrees after the piston passed TDC and the valve is chasing the piston at that point.
Old 07-01-2010, 09:17 PM
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get a custom cam,cost $25 more than a off the self cam.you can get the valve events right and adjust the lift to fit.
Old 07-01-2010, 10:13 PM
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Last year I had a 224/228 .600 .600 114+4 with the 205s at 62cc. Now I have a 227/230 .613 .591 113+2 with the 205s now ported and at 61cc. Used a .040 gasket with both cams and no valve relief.
Old 07-02-2010, 04:51 AM
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Originally Posted by GTO1_OHIO
Last year I had a 224/228 .600 .600 114+4 with the 205s at 62cc. Now I have a 227/230 .613 .591 113+2 with the 205s now ported and at 61cc. Used a .040 gasket with both cams and no valve relief.
What were the PTV clearance values that you measured?
Old 07-02-2010, 06:22 PM
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Originally Posted by vettenuts
What were the PTV clearance values that you measured?
...there was still some clay.

Wasn't really exact but around .065-.070 on the intake and .085-.090 on the exhaust.



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