What do you guys think of my numbers stock AFR 205 Heads?
04-01-2010, 05:06 AM
#1
What do you guys think of my numbers stock AFR 205 Heads? It is in standard form but in SAE I made 427/398
Mods are:
Boxed AFR 205's milled to 62cc, Runners not massaged
224/228/114 Cam (Degreed)
Ported Fast 92/92
Ported stock MAF, Center Piece cutout
SLP Air Lid, K/N Air filter
Stock rear end, 6 speed Transmission
Steel Flywheel Centerforce Dual Friction Clutch
Tuned with hp tuners set timing @ think 26-27 degrees
Mods are:
Boxed AFR 205's milled to 62cc, Runners not massaged
224/228/114 Cam (Degreed)
Ported Fast 92/92
Ported stock MAF, Center Piece cutout
SLP Air Lid, K/N Air filter
Stock rear end, 6 speed Transmission
Steel Flywheel Centerforce Dual Friction Clutch
Tuned with hp tuners set timing @ think 26-27 degrees
04-01-2010, 07:15 AM
#2
Not bad. Each dyno is different so the real results are at the track. My setup is similar to yours although a bigger cam (around 232/237) and I made 445/402 STD but that was with an LS6 intake/TB. I'm also running 26 deg timing IIRC. I intend to get to the dyno sometime this summer now that I've got a ported 90/90 setup w/ VR CAI to see what it'll do. Hoping for 460/410.
Did you post up something last year about your setup? I can't remember if it was different heads or a different cam maybe?
Did you post up something last year about your setup? I can't remember if it was different heads or a different cam maybe?
04-01-2010, 03:44 PM
#7
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Huh, I was expecting more with that set-up but nice graph, still pulling up top. I know you had issues from the intial install a while back, glad its finally together and running strong.
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04-01-2010, 04:19 PM
#8
Wow you remember cool, yea The cam retainer plate wore down and the metal shavings were fallin into oil pump. The day I got this car dynoed, the engine took a dump. But Revxtreme in Fla totally rebuilt the motor for me and I am gateful for them. They said that I was only using about 80% of the intake with this cam. If I would go to a 232/234/113+3 I would gain about another 15-20 hp. I am also thinking about gettin the heads messaged.
04-02-2010, 01:17 PM
#11
I can't find Tony's "recipe" post but I recall it having every bolt-on imaginable, his own working on the heads/intake combined with a lightweight clutch. Don't remember if that was an electric waterpump or not as well. As mentioned there are a number of variables and the dyno itself is a large one - track times/mph tell the real story.
04-02-2010, 01:42 PM
#12
Decent numbers for sure, but hopefully you're spinning the motor higher than this dyno graph indicates, as you may not have even reached peak power yet (although if not, you're obviously very close). Either way, shift a few hundred rpms after peak hp to really take advantage of your new setup.
Let us know if you decide to go with a bigger cam
Let us know if you decide to go with a bigger cam
04-02-2010, 01:43 PM
#13
I can't find Tony's "recipe" post but I recall it having every bolt-on imaginable, his own working on the heads/intake combined with a lightweight clutch. Don't remember if that was an electric waterpump or not as well. As mentioned there are a number of variables and the dyno itself is a large one - track times/mph tell the real story.
04-02-2010, 04:32 PM
#16
Not saying that you're going to have just anyone do it, just curious who you'd go with. 
04-02-2010, 05:26 PM
#20
My original combination that made 475 RWHP (on a half dozen different dyno's) was very optimized and built by a pro....don't think for a minute it doesn't make a difference because details matter, especially when we are discussing high performance engine assembly (and alot of time perfecting the tune).
To clarify a few things my former 346 package did have all the trimmings (EWP, UDP, lightweight clutch, reasonably lightweight tires/rims) but the heads were box stock 205's.
I also ported the intake....and while it all reads the same glancing over various peoples builds (referring to a "ported FAST"), the execution of the work and the actual part itself can look and work completely different.
To clarify the massaging.....when I provide a customer with a brand new set of heads loaded with all the upgrades (spring upgrade, cc and milling, etc.) and the additional hand porting it normally costs in the $3100 - $3500 range for the complete turn-key assemblies, but massaging a set of used heads is about $1000. For the extra power most have seen from this work (about 15 RWHP and big gains under the curve), its a reasonably cost effective upgrade all things considered. Swap to a ported 90 set-up and your looking at close to 2K when the smoke clears for a gain of typically 20....maybe 25 RWHP. The "Mamofied" 205's offers more ponies for the dollar.
Just felt the need to clarify a few things in this thread....if any of you have any specific questions related to your own package feel free to shoot me a PM or pick up the phone and say hello. OP....if your interested in having me rework your heads feel free to get in touch and we can discuss it. Most everyone I have helped with that work has had well above average results for stock displacement combinations to hard running 402 and 416 combinations as well.
Thanks,
Tony