How Many here have AFR heads
Thread Starter
Racer
Joined: Sep 2007
Posts: 493
Likes: 0
From: Eden Utah
How Many here have AFR heads
Just wondering how many members are now using AFR heads and what kind of numbers they are putting out. I have just purchased the 195 l-98 version. Getting ready to dyno them, and will post specs and dyno numbers in next couple of weeks.
Race Director
Joined: Nov 2003
Posts: 12,221
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
195 Elim's for me too. Motor at builders right now. Obviously, no numbers with that!
Team Owner
Joined: Oct 2006
Posts: 20,393
Likes: 431
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17
NCM Member '09
I've got the 195's, CNC ported, and right now they look awfully
impressive on my parts shelf awaiting more parts before installiation...
Last edited by 'Shifter; Jan 21, 2010 at 06:50 PM.
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Burning Brakes
Joined: Jul 2006
Posts: 1,080
Likes: 2
From: Pittsburgh PA
AFR 195's with 8019 springs shimmed up alittle bit.
On 11 to 1 383 with stealth ram, it made 392whp on 10th pull in 90 deg air, with motor temp at 204.... so figure 10whp easily not heat soaked... supported peak power to 6500rpm, shift by 6600-6800. Thats well over 400whp. Ran 11.47 at 118-119 with so so launch in July summer heat (about mid 80's deg with alittle humidity ~2800-3200 ft DA)
Same heads on my 9 to 1 compression 401cubic inch twin turbo motor... has made 640whp on mustang dyno with 12.5 psi through TH400 with a VERY loose converter. Got converter restalled so hoping to see 750whp easily with 14 psi and tuning but we'll see.
Car ran 9.8's at 140-141 mph in good air with no boosted launch, 14 psi. 93 octane pump gas only
HOpe to see 9.3's with new converter, better tuning, better launch, etc. Love an 8.99 on higher boost
AFR's do pretty good
On 11 to 1 383 with stealth ram, it made 392whp on 10th pull in 90 deg air, with motor temp at 204.... so figure 10whp easily not heat soaked... supported peak power to 6500rpm, shift by 6600-6800. Thats well over 400whp. Ran 11.47 at 118-119 with so so launch in July summer heat (about mid 80's deg with alittle humidity ~2800-3200 ft DA)
Same heads on my 9 to 1 compression 401cubic inch twin turbo motor... has made 640whp on mustang dyno with 12.5 psi through TH400 with a VERY loose converter. Got converter restalled so hoping to see 750whp easily with 14 psi and tuning but we'll see.
Car ran 9.8's at 140-141 mph in good air with no boosted launch, 14 psi. 93 octane pump gas only
HOpe to see 9.3's with new converter, better tuning, better launch, etc. Love an 8.99 on higher boostAFR's do pretty good
Last edited by Orr89rocz; Jan 21, 2010 at 07:02 PM.
Instructor
Joined: Feb 2004
Posts: 134
Likes: 0
From: Snellville GA
Installed 195 elims 2 years ago, found my "plug" was poor exhaust after the headers. Dyno last summer with 10.5 :1 and had 402 RWHP, 405 RWTQ with open headers. Now added 3" dual exhaust all the way back with X pipe and bumped up compression to 11.5 : 1 and hope for 420 - 450 HP RWHP later this spring. Best heads for the money you can buy. 
Burning Brakes
Joined: Jul 2006
Posts: 1,080
Likes: 2
From: Pittsburgh PA
Could add my buddys car. was 87 trans am but motor was moved into a 94 firebird. Its a 406, mid 10's to 1 compression, TPIS 242/242 solid roller, and old non eliminator AFR 195's that were ported to flow around 280 cfm. Miniram intake.
Car runs high 10's on motor at 125-127 mph. 150 shot it has seen 10.0's at 138mph with slipping clutch
Even the old heads run hard
Car runs high 10's on motor at 125-127 mph. 150 shot it has seen 10.0's at 138mph with slipping clutch
Even the old heads run hard
