flow results of TBs and MAFs

StreetStang37 · 03-28-2001, 01:41 AM

Remember these are peak hp and tq, not average. On the more modified engine, the 77mm ProM (I didn't list it, but it flows 1560cfm) made 260.5 Avg. HP and 334.7 Avg. TQ vs. 249.1 Avg. HP and 318.2 TQ, remember these are average, not peak. The peak for the 73mm was 356 hp and 375 tq vs. 362 hp and 385 tq, all the numbers being at the wheels. The 77mm was the obvious better one, also the more expensive. It depends how much more flow you really need. The 73mm made basically the same power as the 58mm and the Cobra (70mm) through 4200 rpm but then the extra size helped out on the top end with an Avg. of 13 hp through 4400-6000 rmp vs. the 58mm and 8 Avg. hp through 4400-6000 rpm vs. the Cobra 70mm. Hope that helped!!

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1993 Mustang GT - March Ram Air & Pullies, K&N, C&L 73mm MAF, Super Competition Hooker Headers, 2 1/2 in. mandrel bent cat back, High Flow H-Pipe, Pro 5.0 Shifter, 16* Timing Advance

03-28-2001, 01:41 AM	#5
StreetStang37 Registered Member Join Date: Dec 2000 Location: San Jose, California USA Posts: 275	Remember these are peak hp and tq, not average. On the more modified engine, the 77mm ProM (I didn't list it, but it flows 1560cfm) made 260.5 Avg. HP and 334.7 Avg. TQ vs. 249.1 Avg. HP and 318.2 TQ, remember these are average, not peak. The peak for the 73mm was 356 hp and 375 tq vs. 362 hp and 385 tq, all the numbers being at the wheels. The 77mm was the obvious better one, also the more expensive. It depends how much more flow you really need. The 73mm made basically the same power as the 58mm and the Cobra (70mm) through 4200 rpm but then the extra size helped out on the top end with an Avg. of 13 hp through 4400-6000 rmp vs. the 58mm and 8 Avg. hp through 4400-6000 rpm vs. the Cobra 70mm. Hope that helped!! ------------------ 1993 Mustang GT - March Ram Air & Pullies, K&N, C&L 73mm MAF, Super Competition Hooker Headers, 2 1/2 in. mandrel bent cat back, High Flow H-Pipe, Pro 5.0 Shifter, 16* Timing Advance