Re: Re: Shift Points

From: Tony Cellana (acellan1@tampabay.rr.com)
Date: Wed Jul 07 2004 - 10:39:31 EDT


More torque up top = more HP. You really want a nice FLAT torque curve.
Then you will have nice USABLE power.
TonyC

-----Original Message-----
From: Dan Kramarsky <dkramarsky68@yahoo.com>
To: dakota-truck@dakota-truck.net <dakota-truck@dakota-truck.net>
Date: Tuesday, July 06, 2004 9:57 PM
Subject: DML: Re: Shift Points

>
>
>so is it better to have more torque at the top end of the RPM curve. or
the bottom end?
>
>
>-dan
>
>
>-----original follows---------
>
>
>Date: Tue, 06 Jul 2004 15:13:59 -0700
>From: Kyle Vanditmars <kylevan@telus.net>
>Subject: Re: DML: Shift Points
>
>On Tue, 06 Jul 2004 14:32:10 -0400, Dan Kramarsky wrote:
>
>>
>> my '92 cc dak which is stock, naturally apirated, engine most likely has
this standard
>> curve:
>>
>> http://www.krcperformance.com/marty_dyno/318throttle%20body.JPG
>>
>
>To expand on what Tony said. Given an infinite redline, the proper shift
>point would be when the torque being applied to the wheels in the current
>gear is just about to drop below the torque that will be applied to the
>wheels after the shift and associated RPM drop. But, since redline will
>often occur before this point, you generally shift at redline. Keep in
>mind, you have to calculate the mechanical advantage of 1st gear over 2nd
>gear, not just what torque the motor is producing according to a dyno pull.
>
>Here is a fairly indepth explanation:
>http://www.allpar.com/eek/hp-vs-torque.html
>
>------------------------------
>
>=====
>Dan K.
>'92 Grey Dak CC, 318, 4x2, 46RH, 3.92 rear, 235/75R15, PS, PW, PB, PL, AC.
>
>Mods: Trans-Go, APS Precision's 2400 stall, cool air induction, K&N
filter, Autolite 3924s, & re-located IAT sensor.
>
>Future: 180* stat, MP PCM, Stage 1 T.B., HER1418AL Cam, 3" Gibson exhaust,
March pullies, electric fan, and head porting.
>
>
>
>__________________________________
>Do you Yahoo!?
>Yahoo! Mail - Helps protect you from nasty viruses.
>http://promotions.yahoo.com/new_mail
>



This archive was generated by hypermail 2b29 : Sun Aug 01 2004 - 00:46:14 EDT