AFR 205's and small cam yield 500 RWHP!!
10-10-2009, 01:32 PM
#1
Former Vendor
Thread Starter
AFR 205's and small cam yield 500 RWHP!!
Helped a customer up in Canada awhile back build a combination similar to my former 346 set-up....
A package aimed at excellent street manners, good low end torque, yet still able to produce big power when called upon. The proverbial "have your cake and eat it to scenario" which is ultimately built upon a very careful selection of parts and hitting alot of the smaller details to get there.
While my former 346 build mustered 475 - 480 RWHP or so (with a slightly smaller 224/228 cam), Dale's package had a few other things going for it helping him to exceed my numbers upstairs. One, a few more degrees of duration on the intake lobe (a 228/228 cam) and two, my AFR 205's were out of the box bone stock while Dale opted to have me port and optimize his like I have helped a handful of others (which have worked extremely well on stock displacement builds all the way to low 400 CID engine combinations as well).
What I find intriguing about the results is Dale also had a 410 rear and a much heavier clutch/flywheel combo than I ran.....the rear not much different (390 vs 410), perhaps only robbing a couple of ponies there, but I bet if Dale ran as light a clutch/flywheel assembly as I had, he may have been looking alot closer to 510 than 500 RWHP in a package that still drives like stock and makes more power and torque than most of the more aggressive over the top builds which come with alot of penalties in low speed power output, drivability, throttle response, not to mention fuel economy.
Good stuff.....check out the results and the dyno graph below
http://forums.corvetteforum.com/perf...-500-rwhp.html
I know alot of people dont visit the performance results section very much and felt Dale's results (and approach to the package he ultimately put together) would be of interest being very much inline with what most of you seem to want to achieve in a stock shortblock configuration. Not an inexpensive build by any stretch but the results justify the money spent if you seek big power in a refined combination.
Regards,
Tony
A package aimed at excellent street manners, good low end torque, yet still able to produce big power when called upon. The proverbial "have your cake and eat it to scenario" which is ultimately built upon a very careful selection of parts and hitting alot of the smaller details to get there.
While my former 346 build mustered 475 - 480 RWHP or so (with a slightly smaller 224/228 cam), Dale's package had a few other things going for it helping him to exceed my numbers upstairs. One, a few more degrees of duration on the intake lobe (a 228/228 cam) and two, my AFR 205's were out of the box bone stock while Dale opted to have me port and optimize his like I have helped a handful of others (which have worked extremely well on stock displacement builds all the way to low 400 CID engine combinations as well).
What I find intriguing about the results is Dale also had a 410 rear and a much heavier clutch/flywheel combo than I ran.....the rear not much different (390 vs 410), perhaps only robbing a couple of ponies there, but I bet if Dale ran as light a clutch/flywheel assembly as I had, he may have been looking alot closer to 510 than 500 RWHP in a package that still drives like stock and makes more power and torque than most of the more aggressive over the top builds which come with alot of penalties in low speed power output, drivability, throttle response, not to mention fuel economy.
Good stuff.....check out the results and the dyno graph below
http://forums.corvetteforum.com/perf...-500-rwhp.html
I know alot of people dont visit the performance results section very much and felt Dale's results (and approach to the package he ultimately put together) would be of interest being very much inline with what most of you seem to want to achieve in a stock shortblock configuration. Not an inexpensive build by any stretch but the results justify the money spent if you seek big power in a refined combination.
Regards,
Tony
Last edited by Tony Mamo @ AFR; 10-10-2009 at 01:37 PM.
10-10-2009, 02:59 PM
#3
Pro
Very nice......
The AFR 205's and 0.040" cometics that Tony talked me into, (instead of buying the other cheaper heads from Summit), were the best decision I made on my 04Z build. I made 442 RWHP with a 225/230 cam and stock LS6 intake.
Stan
The AFR 205's and 0.040" cometics that Tony talked me into, (instead of buying the other cheaper heads from Summit), were the best decision I made on my 04Z build. I made 442 RWHP with a 225/230 cam and stock LS6 intake.
Stan
10-10-2009, 03:18 PM
#4
Former Vendor
Thread Starter
Hit the link for more info/detail as described by the owner (and a look at the dyno runs), but in short I spec'd the cam.
Stan....long time no see. Give my regards to the Lone Pine crowd when you get a chance
Cheers,
Tony
Stan....long time no see. Give my regards to the Lone Pine crowd when you get a chance
Cheers,
Tony
Last edited by Tony Mamo @ AFR; 10-10-2009 at 03:20 PM.
10-10-2009, 07:47 PM
#6
Le Mans Master
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Tony it's good to see a C5 owner(current or former) like yourself getting involved hands on w/ these OUTSTANDING head/cam combos
I often consult Don Kinder/Slowhawk on LSx info, he has always had great results w/ the AFR heads
I often consult Don Kinder/Slowhawk on LSx info, he has always had great results w/ the AFR heads
10-10-2009, 09:12 PM
#7
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St. Jude Donor '12-'13-'14
I have the similar set up with 3.90, and love it
My AFRs are out of the box, and my FAST 90/90 has such a crappy port by vengance Id have to say they are out of the box. My below dyno numbers are before I installed the 90/90
and im 60 RWHP less
My AFRs are out of the box, and my FAST 90/90 has such a crappy port by vengance Id have to say they are out of the box. My below dyno numbers are before I installed the 90/90
and im 60 RWHP less
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04zjimc (06-08-2019)
10-10-2009, 09:53 PM
#9
Drifting
back in the days when i had a fast 90/90 from vengance...my tuner told me the same thing about the port job....CRAP!!!!
Last edited by c5mtl; 10-12-2009 at 04:01 PM.
10-10-2009, 10:42 PM
#10
Team Owner
Makes me want AFR 205's and a small cam for my C5Z...
I believe the AFR 205's have a CARB EO#, and I've read that LG makes a mild cam that will pass emissions. This post has me thinking...
I believe the AFR 205's have a CARB EO#, and I've read that LG makes a mild cam that will pass emissions. This post has me thinking...
10-11-2009, 02:00 PM
#14
Former Vendor
Thread Starter
And just to be clear, by no means am I portraying this as any type of a budget package, or an easy one to duplicate for that matter. Dale was looking for all he could get from a milder type package you could still use comfortably as a daily driver....
My guess is the beginning of our conversation went something like "Well....if money isn't an issue I would build it like this". Plus if I recall he called me looking to build or duplicate something like my first 346 build and I would have immediately informed him its an excellent package but requires alot of the smaller details (some of which you just mentioned) which adds to the total cost. Then I suggested a slightly larger cam mentioning if I were to do it over I personally would have went just a tad larger and if he really wanted to get everything he could from it to allow me to personally rework/optimize the heads as well (budget permitting of course).
At the time I was pretty excited when Dale decided to pull the trigger on the whole deal, naturally curious what it would ultimately produce. Then Dale vanished for awhile as he ultimately spent the better part of a season playing with and tweaking the tune, learning the tuning software which even for someone in the industry is a daunting task....it just takes alot of time to get familiar with it.
This post is more meant to show what's possible more then anything else....and even if you missed some of the particulars, while you couldn't expect the same results (like some people do which I find kind of amusing), you could certainly expect solid results if you followed most of the "recipe".
-Tony
Last edited by Tony Mamo @ AFR; 10-11-2009 at 02:05 PM.
10-11-2009, 03:04 PM
#15
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No offence to u tony, not only me but there are hundred's who respect your knowledge and honesty. YT RR's, EWP, pulley ...light clutch not only all these will give u better cooling, better valvetrain stability, free up some HP from UD pulley and accelerate faster with light clutch...but also give more ponies.
Any GP on ur heads? i already have cam 228/232 .585/.595 113 LSA package (not yet installed) and PAC1518 springs, UD pulley, head gasket, head bolts....so on onlly thing missing is heads, but iam on budget though. Any special on 205's let me know, iam very positive if u run a GP for 10 or 20 it will be gone quicker than even u think.
I already have FAST 90/90 tony mamofied purchased used from keith (rpm) as well.
Any GP on ur heads? i already have cam 228/232 .585/.595 113 LSA package (not yet installed) and PAC1518 springs, UD pulley, head gasket, head bolts....so on onlly thing missing is heads, but iam on budget though. Any special on 205's let me know, iam very positive if u run a GP for 10 or 20 it will be gone quicker than even u think.
I already have FAST 90/90 tony mamofied purchased used from keith (rpm) as well.
10-11-2009, 04:07 PM
#17
Tech Contributor
I have Vararam, Air Coupler, Stock throttle body but ported by Shanner, stock LS6 intake manifold, AFR 205's (milled to 59cc), LG's X1-E (emission) cam, 160 thermostat, UD pulley, LG Pro's with cats, and GHL Bullets. I still have Stock clutch, and stock rear end.
My cam is close to the cam Tony listed above. I am Dyno'ing 448/432 to the wheels.
I still need the Fast 90 or 92 Intake, and a bigger throttle body. I would also need my heads, and Fast 90 ported by Tony to get to 500rwhp ?
Toque
10-11-2009, 08:22 PM
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