AFR engine combos [Forums - C4 Technical]

C4 Technical > AFR engine combos
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anesthes	AFR engine combos	#1
Master Guru Boston, MA 646 Posts Member since: 2008/6/18 18:02	This is from AFR's website. I'd love to know what the cam specs were on these puppies. If you look at the hp and torque even at 2500 RPM, this is a killer combination. Anyone happen to know the full cam specs? 406ci SBC HP=550 Heads: AFR CNC Cyl Heads 210cc Race Ready Compression: 10.3:1 Carb: 750 cfm Ignition/Timing: MSD HEI Billet Distributor 36* Timing Cam: Lunati Hyd. Roller Cams 232*/ 242+ .560-.570 lift w/ 1.6 rockers Exhaust 1 3/4" Headers Fuel: 93 octane pump gas RPM Torque H.P. 2500 463 220 3000 468 267 3500 457 304 4000 465 354 4500 534 457 5000 540 514 5500 510 534 6000 483 551 AFR has another example with a solid flat tappet and 195 heads that makes even more power. (570). -- Joe
	Posted on: 2009/8/31 17:44

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BrianCunningham	Re: AFR engine combos	#2
Senior Guru Boston, MA for the most part :) 7763 Posts Member since: 2007/12/30 0:00	not sure, but here are the full articles http://www.airflowresearch.com/articles.php here's the article that sold me on the new AFR Eliminators 615hp 383ci http://www.hotrod.com/techarticles/en ... ngine_upgrades/index.html
	Posted on: 2009/8/31 18:28
	_________________ Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/ 383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes NCCC Governor: http://BayStateCorvetteClub.com
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1989GTA	Re: AFR engine combos	#3
Guru 61 Posts Member since: 2008/12/25 1:38	I like the build that Mark Bychowske did with a 370 cubic inch LT1. I believe it was 476rwhp and 402rwtq. Looking at the dyno graph I think the horsepower was still rising at 6500rpm when it was shut off. Now if I can only duplicate that motor.
	Posted on: 2009/9/1 0:01

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dan0617	Re: AFR engine combos	#4
Senior Guru Tyrone, PA 1260 Posts Member since: 2007/12/30 0:00	I know I'm pleased to death with my 383, high compression, 230/236 cammed, AFR 195 street ported head engine. I can only imagine what more cubes, more cam, and 195 comps would feel like. Wish I could afford a 434 with about a 252/260 cammed engine with AFR 235's on top.
	Posted on: 2009/9/1 0:53
	_________________ ´89 Vert, 383, 230/236 cam, AFR 195's, LT Headers, HSR intake, 2800 stall, Zex 200 shot, ET Street Radials, tune by me. Runs were with D36 3.07's. On spray, 10.55 @ 132.78, 1.55 60 ft. On motor, 12.08 @ 113.15, 1.66 60 ft.
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tpi421vett	Re: AFR engine combos	#5
Registered Vendor Salt Lake City Utah 125 Posts Member since: 2008/11/17 19:59	Hi Joe, I have a friend here locally that is a bracket racer. He had some W.P sportsman heads that were ported. It is a 74 Nova 406 sbc 12.0 compression, 252/260 solid roller,Edelbrock Victor and a 850 carb. He was running 12.20@109 in our crappy DA (6000-9000ft). He swapped for some race ready AFR 210's on it (not the comp 210's) and now he runs 11.50's @116, just from a head swap. After porting the W.P heads, the port volume was about the same. Get some AFR's, and you won't be disappointed!
	Posted on: 2009/9/3 5:46
	_________________ AFR Dealer, can sell at prices too low to advertise. 801-953-6391 08 C6 LS3,3LT,Z51,A6,NPP 91 vette,450ci, AFR 220, miniram,FAST, Crane 252/260 solid roller, 200 shot nos, ZF6, 4 link, 9", DA corrected to 1300 ft 9.65@145.xx 450ci now with AFR 235...
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anesthes	Re: AFR engine combos	#6
Master Guru Boston, MA 646 Posts Member since: 2008/6/18 18:02	Quote: tpi421vett wrote: Hi Joe, I have a friend here locally that is a bracket racer. He had some W.P sportsman heads that were ported. It is a 74 Nova 406 sbc 12.0 compression, 252/260 solid roller,Edelbrock Victor and a 850 carb. He was running 12.20@109 in our crappy DA (6000-9000ft). He swapped for some race ready AFR 210's on it (not the comp 210's) and now he runs 11.50's @116, just from a head swap. After porting the W.P heads, the port volume was about the same. Get some AFR's, and you won't be disappointed! Sounds good. Yeah I'm planning on the 195 eliminators. Probably mill to 60cc chambers to get the compression up. I'd like a solid roller. I'm just a little weary about it because I've heard of a lot of failures at idle. I'd like to stay away from hydraulic though because of lifter pump up and bleed down. -- Joe
	Posted on: 2009/9/3 16:28

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BeachBum	Re: AFR engine combos	#7
Master Guru 751 Posts Member since: 2008/11/20 17:01	Here is a link for a nice set-up.... he's accessible to talk to you as well. Its a 418 sbc.... curve was still rising when they shut it off..... probably makes 570ish up at around 6000-6200 rpm, but not sure. Look at the torque curve.... extremely stout across the entire rpm range, especially for such a docile hyd roller cam. I think he got his heavy chevelle into the 10's with that set-up. http://www.chevelles.com/forums/showthread.php?t=218368 There is another guy with a 414 sbc, basically identical to the above set-up, but he's running E85..... made over 600 HP with basically the same hyd roller cam as above. Power was all in by early 6000 rpm. I can dig-up that torque curve somewhere if you're interested.
	Posted on: 2009/9/3 20:38

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pr0zac	Re: AFR engine combos	#8
Elite Guru Pittsburgh 1045 Posts Member since: 2008/10/20 23:28	Quote: tpi421vett wrote: Hi Joe, I have a friend here locally that is a bracket racer. He had some W.P sportsman heads that were ported. It is a 74 Nova 406 sbc 12.0 compression, 252/260 solid roller,Edelbrock Victor and a 850 carb. He was running 12.20@109 in our crappy DA (6000-9000ft). He swapped for some race ready AFR 210's on it (not the comp 210's) and now he runs 11.50's @116, just from a head swap. After porting the W.P heads, the port volume was about the same. Get some AFR's, and you won't be disappointed! that motor sounds like its a little lame for what it is? i had a lot less cam, cubes and compression and out mph'd that in my vette..
	Posted on: 2009/9/4 1:58

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pr0zac	Re: AFR engine combos	#9
Elite Guru Pittsburgh 1045 Posts Member since: 2008/10/20 23:28	Quote: anesthes wrote: Sounds good. Yeah I'm planning on the 195 eliminators. Probably mill to 60cc chambers to get the compression up. I'd like a solid roller. I'm just a little weary about it because I've heard of a lot of failures at idle. I'd like to stay away from hydraulic though because of lifter pump up and bleed down. -- Joe i have bought the lifter set that comes with the spider and dog bones from gmpp in a few different motors i have put together and have had great luck. i have seen summit lifters collapse within a short period of running. i have had many speed pro lifters blow on me. i switched to the new gm lsx lifters for my 383 setup because i have heard good things about them and they were $115 for the set.
	Posted on: 2009/9/4 2:05

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BeachBum	Re: AFR engine combos	#10
Master Guru 751 Posts Member since: 2008/11/20 17:01	Quote: pr0zac wrote: Quote: tpi421vett wrote: Hi Joe, I have a friend here locally that is a bracket racer. He had some W.P sportsman heads that were ported. It is a 74 Nova 406 sbc 12.0 compression, 252/260 solid roller,Edelbrock Victor and a 850 carb. He was running 12.20@109 in our crappy DA (6000-9000ft). He swapped for some race ready AFR 210's on it (not the comp 210's) and now he runs 11.50's @116, just from a head swap. After porting the W.P heads, the port volume was about the same. Get some AFR's, and you won't be disappointed! that motor sounds like its a little lame for what it is? i had a lot less cam, cubes and compression and out mph'd that in my vette.. But, did you do it in a 6000-9000 ft DA ? If that fella in the Nova drove off that mountain to a sea level track, it would run another 5 mph minimum and probably more like 8-10 mph faster. An 11.50 car at that elevation & DA is an easy 10 second car at sea level. Just food for thought.
	Posted on: 2009/9/4 2:25

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anesthes	Re: AFR engine combos	#11
Master Guru Boston, MA 646 Posts Member since: 2008/6/18 18:02	Quote: pr0zac wrote: i have bought the lifter set that comes with the spider and dog bones from gmpp in a few different motors i have put together and have had great luck. i have seen summit lifters collapse within a short period of running. i have had many speed pro lifters blow on me. i switched to the new gm lsx lifters for my 383 setup because i have heard good things about them and they were $115 for the set. I've had issues over the years with Comp hydraulic roller lifters in OE roller blocks. However, my 400 isn't an OE roller so I need to run retrofit either way. -- Joe
	Posted on: 2009/9/4 10:22

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PeteK	Re: AFR engine combos	#12
Moderator Nanticoke, Pa 1311 Posts Member since: 2006/7/3 0:00	Quote: pr0zac wrote: Quote: anesthes wrote: Sounds good. Yeah I'm planning on the 195 eliminators. Probably mill to 60cc chambers to get the compression up. I'd like a solid roller. I'm just a little weary about it because I've heard of a lot of failures at idle. I'd like to stay away from hydraulic though because of lifter pump up and bleed down. -- Joe i have bought the lifter set that comes with the spider and dog bones from gmpp in a few different motors i have put together and have had great luck. i have seen summit lifters collapse within a short period of running. i have had many speed pro lifters blow on me. i switched to the new gm lsx lifters for my 383 setup because i have heard good things about them and they were $115 for the set. Anyone have a link for the lsx lifters? I need to purchase a set or 2.
	Posted on: 2009/9/4 11:49
	_________________ "It was really on a pass until it came apart." "Yeah. They always are."
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pr0zac	Re: AFR engine combos	#13
Elite Guru Pittsburgh 1045 Posts Member since: 2008/10/20 23:28	http://www.summitracing.com/parts/NAL ... NAL-12499225&autoview=sku http://www.sdparts.com/product/124992 ... GenIIIEnginesSetof16.aspx http://paceperformance.com/index.asp? ... on=VIEWPROD&ProdID=135370
	Posted on: 2009/9/4 20:21
	_________________ 96 lt4. 357ci, 11:1, LE 226/232, LE2 LT4 heads, ported LT4 intake, EM Gladiator44, EM LT's, stock exhaust, NX kit.
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tpi421vett	Re: AFR engine combos	#14
Registered Vendor Salt Lake City Utah 125 Posts Member since: 2008/11/17 19:59	Beach nailed it! This isn't a sealevel deal. This is up here in the stratoshpere!!! Uncorrected numbers!
	Posted on: 2009/9/6 6:18
	_________________ AFR Dealer, can sell at prices too low to advertise. 801-953-6391 08 C6 LS3,3LT,Z51,A6,NPP 91 vette,450ci, AFR 220, miniram,FAST, Crane 252/260 solid roller, 200 shot nos, ZF6, 4 link, 9", DA corrected to 1300 ft 9.65@145.xx 450ci now with AFR 235...
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