What rpm should i shift at?

93hatch · February 17th, 2009, 04:15 PM

Basic P headed combo on an explorer intake, obviously doesnt breathe too well after 5700 or so, should i shif then??

88_FiveOh · February 17th, 2009, 04:20 PM

i would probably shift yours at about 5300 as it stops making power at 5500. You never want your car to stop making power so if you keep it in your power range you will notice a very big difference power wise.

89LX347 · February 17th, 2009, 04:22 PM

go to 6
just shift when the power falls off. it will be obvious

M L Struck · February 17th, 2009, 04:33 PM

about 5200-5300

baine21225 · February 17th, 2009, 04:46 PM

if you have a shift light set it at about 5300, so by the time you shift it will prbly be around 5500

flyin ryan · February 17th, 2009, 05:07 PM

Originally Posted by baine21225

if you have a shift light set it at about 5300, so by the time you shift it will prbly be around 5500

x2 that's what I do

93hatch · February 17th, 2009, 05:29 PM

hmm ill try 5500, ive been shifting at 6k

M L Struck · February 17th, 2009, 05:37 PM

If you look your power is falling off at 5500, and like they said above by the time you shift your hitting 5700 to 5800 and at 5800 your making the same power you would if shift at 4500

gotn20 · February 17th, 2009, 08:09 PM

Originally Posted by 2damn fast4u

ummm.... wtf... noob

flattusmaximus78 · February 17th, 2009, 08:20 PM

Shift at 5400 or 5500 like u said. Idk why people are saying it makes the same power at 4500... shift there and see what hapoens. HAH

93mustank · February 17th, 2009, 09:15 PM

Adjust your shift points accordingly..... Usually shift about 400 rpms above peak power....

I would shift it at 5900-6000

86er · February 17th, 2009, 09:44 PM

Originally Posted by 93mustank

Adjust your shift points accordingly..... Usually shift about 400 rpms above peak power....

I would shift it at 5900-6000

uh what.

Id set the shift like at 5200, by the time you react youll be right at peak power, shifting pas the peak power, um yeah or no

superbean · February 17th, 2009, 10:06 PM

shift a tad bit higher than peak power. Even though it makes a little less hp at 6k than it does at 5300, when you shift, you will be higher in the rpm range i.e. after the shift your at 4500 instead of 38.. thats 35 hp being lost just by shifting early.

93hatch · February 17th, 2009, 10:12 PM

ill try different shift points next time im out, ill have slicks so maybe ill break a 12

Cool Bam · February 17th, 2009, 10:12 PM

Originally Posted by 93mustank

Adjust your shift points accordingly..... Usually shift about 400 rpms above peak power....

I would shift it at 5900-6000

Read above.

88-gt-t-top · February 17th, 2009, 10:13 PM

Originally Posted by M L Struck

about 5200-5300

x3

White Thunder · February 17th, 2009, 10:22 PM

do you have an aftermarket tach?

86er · February 17th, 2009, 10:25 PM

Originally Posted by superbean

shift a tad bit higher than peak power. Even though it makes a little less hp at 6k than it does at 5300, when you shift, you will be higher in the rpm range i.e. after the shift your at 4500 instead of 38.. thats 35 hp being lost just by shifting early.

its a double edged sword, you put the motor where it wont make power or shift where the power stops and have to wait all of a nano second to recoupe the 300rpms lost by shifting early, personally id rather have the motor shift at peak power, and have it drop just a smidge in power on the shift, its not like its dropping off that bad if you shift at 5500

Hunt_chevs · February 17th, 2009, 10:25 PM

Originally Posted by M L Struck

about 5200-5300

plus one,..

White Thunder · February 17th, 2009, 10:28 PM

before he is using the stock tach to determine when to shift i think he should get some track time...shift at different points and let the track do the talking

February 17th, 2009, 04:15 PM	#1
93hatch Banned 1992 Lx 11.39@119.24 Join Date: Jan 2008 Location: Az Posts: 11,644 iTrader: 0 reviews	What rpm should i shift at? Basic P headed combo on an explorer intake, obviously doesnt breathe too well after 5700 or so, should i shif then?? __________________ [QUOTE=93mustank;2577445]We speed tested my right arm for quickness in shifts... So he could design the cam for proper shift recovery.[/QUOTE]

February 17th, 2009, 04:20 PM	#2
88_FiveOh Regular 1988 lx 13.13@101.78 Join Date: Feb 2009 Location: Maryland Posts: 191 iTrader: 0 reviews	i would probably shift yours at about 5300 as it stops making power at 5500. You never want your car to stop making power so if you keep it in your power range you will notice a very big difference power wise. __________________ 302 out of a lincoln lsc, Cobra upper and lower, 1.6 rr's, msd cap, bbk equal lengths, off road h pipe, mac pro chambers, 4:10's, bbk drag launch springs, 4cylinder tranny, short shifter, 20% tint, and 6k H.I.D's. 13.13@101mph 1.8 60ft on D/R's

February 17th, 2009, 04:22 PM	#3
89LX347 Hardcore Enthusiast Join Date: Apr 2007 Posts: 1,304 iTrader: 0 reviews	go to 6 just shift when the power falls off. it will be obvious __________________ I believe in art when it is not seen. I believe in music when it is not audible. I believe in God when He is silent.

February 17th, 2009, 04:46 PM	#5
baine21225 MM Fanatic Join Date: Jun 2007 Location: Baltimore, MD Posts: 4,349 iTrader: 1 reviews	if you have a shift light set it at about 5300, so by the time you shift it will prbly be around 5500 __________________ "That's how Dad did it, that's how America does it... and it's worked out pretty well so far..."

February 17th, 2009, 05:29 PM	#7
93hatch Banned 1992 Lx 11.39@119.24 Join Date: Jan 2008 Location: Az Posts: 11,644 iTrader: 0 reviews	hmm ill try 5500, ive been shifting at 6k __________________ [QUOTE=93mustank;2577445]We speed tested my right arm for quickness in shifts... So he could design the cam for proper shift recovery.[/QUOTE]

February 17th, 2009, 04:33 PM	#4
M L Struck Hardcore Enthusiast 85 GT/86 SVO/2010 GT500 Join Date: Oct 2008 Location: Rossville IN Posts: 1,183 iTrader: 0 reviews	about 5200-5300

February 17th, 2009, 05:37 PM	#8
M L Struck Hardcore Enthusiast 85 GT/86 SVO/2010 GT500 Join Date: Oct 2008 Location: Rossville IN Posts: 1,183 iTrader: 0 reviews	If you look your power is falling off at 5500, and like they said above by the time you shift your hitting 5700 to 5800 and at 5800 your making the same power you would if shift at 4500

February 17th, 2009, 08:20 PM	#10
flattusmaximus78 I Post Entirely Way Too Much 1993 5.ohhhh 12.97 @140mph Join Date: Apr 2006 Location: Gatorland Posts: 6,122 iTrader: 3 reviews	Shift at 5400 or 5500 like u said. Idk why people are saying it makes the same power at 4500... shift there and see what hapoens. HAH __________________ 02 Pewter z28, hoosiers/lid/exhaust/spray...125mph 1993 gt Sold, already missed --Moates Quarter horse $225-- --Cobra intake $150-- --tremec 3550 bell and shifter $1100--

February 17th, 2009, 09:15 PM	#11
93mustank Banned Join Date: Aug 2008 Location: Phoenix,AZ Posts: 3,014 iTrader: 1 reviews	Adjust your shift points accordingly..... Usually shift about 400 rpms above peak power.... I would shift it at 5900-6000 __________________ PeteAndersonRacing.com

February 17th, 2009, 10:06 PM	#13
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	shift a tad bit higher than peak power. Even though it makes a little less hp at 6k than it does at 5300, when you shift, you will be higher in the rpm range i.e. after the shift your at 4500 instead of 38.. thats 35 hp being lost just by shifting early. __________________ weeee foooord!

February 17th, 2009, 10:12 PM	#14
93hatch Banned 1992 Lx 11.39@119.24 Join Date: Jan 2008 Location: Az Posts: 11,644 iTrader: 0 reviews	ill try different shift points next time im out, ill have slicks so maybe ill break a 12 __________________ [QUOTE=93mustank;2577445]We speed tested my right arm for quickness in shifts... So he could design the cam for proper shift recovery.[/QUOTE]

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