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Old 12-26-2001, 03:39 PM   #21 (permalink)
Stang Runner
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Join Date: Jun 1999
Location: Walker, MI, USA
Posts: 1,202
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ok at ................ Intake............................. EX
.200 lift the TW:125 AFR:123 .......... TW:104 AFR:118
.300 lift the TW:187 AFR:186 .......... TW:139 AFR:153
.400 lift the TW:226 AFR:225 .......... TW:166 AFR:178
.500 lift the TW:241 AFR:250 .......... TW:187 AFR:185
.600 lift the TW:242 AFR:250 .......... TW:193 AFR:191


Ok All that said
................ Intake..................... EX
.200.... TW by 2cfm........ AFR by 14cfm
.300.... TW by 1cfm........ AFR by 14cfm
.400.... TW by 1cfm........ AFR by 12cfm
.500.... AFR by 9cfm........ TW by 2cfm
.600.... AFR by 8cfm........ TW by 2cfm
OK the Heads are very Close with the AFR beating the TW By a BIT ...... need to rember that the AFR are 1.90 valves 165CC runners and the TW are 2.02 valves 170CC runners so that being said the AFR have a bit better Velocity but very cloes with only 5CC diff in the Runners next the TW are 61cc Cambers and the AFR are 58cc one you can get they have a 62cc I want to say not 100% sure. But any how the 61cc to 58cc, the 58 cc heads will make a bit more Compression and help make more power.
SO the AFR are Better out of the box in air Flow wise I THINK might be depatable Flow ## can vary on both heads.... BUT the Added Compression on the AFR with Make More Power Hands down!!!
So It Looks EZ the AFR heads are Better out of the box right!!!BUT!!!!!! BUT!!!!!! the AFR heads are about $300 more If you want could get the TW and do $300 in work to it and Yes I would be better than the AFR's are...... The TW ARE a VERY good head!!! And for a $1,000 it is the best head out there!!!!!
Out of the BOX the AFR are the best.... It is Up to you.....
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Engine: steel mounts, Under drive pulleys, K&N, GT-40 Intake ported Lower, No power steering, No A/C, Mac cold intake, 65MM TB, 255 Fuel pump, 24's, AFR 165 58cc, Rocker Arms 1.7with the stock Cam, 1 5/8 short headers, offRoad X-pipe
Drive Train: 3.55, T-5 with a Pro 5.0 shifter
12.656@107.71MPH See It at www.T-racing.com/mustang.htm
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