Where should i be Shifting?

E

exindust

New Member

May 8, 2004

329

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Moorpark, CA

Dec 20, 2004

#1

• Dec 20, 2004

• #1

I had a real Schitty track experience my first time going (was a lot of fun!) but my times were pitiful 14.4 @ 104 (no traction whatsoever) but on a side note. Where in my RPM band should i be shifting my gears... maybe that was part of the problem... i was shifting too late. Usually i was shifting right around 5900-6k but i was always under the assumption these centrifical Blowers made power throughout the RPM range which allowed me to push it as hard as i could.


help

 

F

FalconGuy016

New Member

Oct 26, 2004

437

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Northern VA

Dec 20, 2004

#2

• Dec 20, 2004

• #2

Oh no, 350 rwhp and 14.4's ? A stock GT gets better

I hear people shift at 5,500 for better power, but thats with a GT. Whats your redline?

 

04DarkShadowGT

Member

Jan 31, 2004

474

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17

Fort Wayne, IN

Dec 20, 2004

#3

• Dec 20, 2004

• #3

Yikes I ran a 14.1 with a 2.225 60ft with exhaust and plenum.

Depends alot on altitude, track prep, and temp though

I shift at 5600 or so. I am not 100% sure that is right but it gave me the best time.

 

NicksBullitt

New Member

May 31, 2004

172

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Holly Ridge, NC

Dec 20, 2004

#4

• Dec 20, 2004

• #4

I shift at 6K.

 

madmatt

Ellis Juan sympathizer

Founding Member

Dec 28, 2002

465

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16

Lexington, SC

Dec 20, 2004

#5

• Dec 20, 2004

• #5

If you get a set of drag radials, that would prolly improve your times HUGELY. What is your 60' time. Those numbers are definately WAY low for a supercharged car. Just takes practice I guess.

 

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Darkhorse845

Banned

Nov 17, 2004

101

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0

Las Vegas,Nevada

Dec 20, 2004

#6

• Dec 20, 2004

• #6

5900-6000 rpm

 

M

mrpositraction

New Member

Aug 28, 2004

296

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Columbia, MO

Dec 20, 2004

#7

• Dec 20, 2004

• #7

I am not sure if it would change w/ your type of S/C, but stock I shifted at 5500-5600 and ran a 14.2 (1st time at the track). I have done a lot of reading and found this to be the best for a stock engine, but you are right, w/ a centri S/C, I am not sure if it would be worth it to shift at a higher rpm, maybe some centri guys will read this and comment on their experiences.

 

xseler8

Member

May 4, 2004

619

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17

Montgomery County,Pa.

Dec 20, 2004

#8

• Dec 20, 2004

• #8

exindust said:

I had a real Schitty track experience my first time going (was a lot of fun!) but my times were pitiful 14.4 @ 104 (no traction whatsoever) but on a side note. Where in my RPM band should i be shifting my gears... maybe that was part of the problem... i was shifting too late. Usually i was shifting right around 5900-6k but i was always under the assumption these centrifical Blowers made power throughout the RPM range which allowed me to push it as hard as i could.


help

Click to expand...

YOU ARE NOT ALONE!!!!!. My 1st run was 14.5@100 with drag radials. That's OK...we will get better with each run. Anyway, I shift at 5500 with a Raptor shift light.

 

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el_kid_1

New Member

Oct 30, 2003

738

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0

Puerto Rico

Dec 20, 2004

#9

• Dec 20, 2004

• #9

Don't feel bad. My first time to the track with the KB blower, I ran 14.1 sec. Then, I switched to drag radials and with a bit of practice, my best time has been 12.4. Now I'm shooting for 11.9 next season (with ET Drags, new clutch Spec Stage 2, new 31 spline axles, new eaton differential, larger intercoller reservoir, etc.)

 

Modular2v

Founding Member

Jun 30, 2002

3,222

23

99

oklahoma

Dec 20, 2004

#10

• Dec 20, 2004

• #10

i shift at 6k every time.....but im missing the blower lol....but run almost a full second faster

 

BadMoFo

I will sleep with a Mod for a CT

Founding Member

Sep 28, 2001

2,911

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0

New Bern NC

Dec 21, 2004

#11

• Dec 21, 2004

• #11

have yoiu ever been to the dyno? if so look at your chart and where the power starts to drop off is where you need to shift at. now with a supercharger it should continue to climb so I would say 6k but again look at your dyno sheet, no need to keep going up in rpms if the power is dropping off.

 

Premium Speed

New Member

Apr 22, 2003

1,006

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Houston, Texas

Dec 21, 2004

#12

• Dec 21, 2004

• #12

yeah, look at the dyno and shift a few hundred RPM's past PEAK rwhp. i'm assuming you are on radials so don't get down with those times.