Beat that dead horse again! clarification PLUS new question

[Mike Rolica]

But you loose the low rpm torque and throttle response.  Peak is at around
3000-3500, with some good aftermarket heads, 5200 is the dead zone.  I have
loads of info on the TPI,  when I get my website up and running I will post
it.  Now it also depends on what you are talking about for peak   torque or
hp?  Stock 2800 for torque is right .  With better heads  torque picks up
from 2800-4800.
Mike Rolica
EXT. 260
 :-)


	-----Original Message-----
	From:	Gary Derian [SMTP:gderian at oh.verio.com]
	Sent:	Monday, November 01, 1999 1:58 PM
	To:	gmecm at efi332.eng.ohio-state.edu
	Subject:	Re: Beat that dead horse again! clarification PLUS
new question

	The TPI peaks at more like 2800  rpm.  By 4500 the long and small
runners
	are way off.  There is lots of aftermarket intake parts to improve
the high
	rpm flow and tuning, e.g. siamesed runners and large port base
plates.

	Gary Derian <gderian at oh.verio.com>
	>
	> My understanding was that the TPIs only flowed good until about
5300 rpm,
	> but the cutoff shouldn't be like a switch.  You're seriously
compromising
	> power output potential by setting up a combination that makes peak
HP
	above
	> this range.  I think the 5300rpm figure is where the runners
resonate and
	> flow best, but duration is also key in that determination.  Need
to find
	my
	> equations for that :-)