When you are running a 1/4 mile at what RPM range is it best to shift?

 

I know you don't believe me... but I did the calcs from Mike's dyno and the NHRA calc said 7000 RPM.

In all honesty, I didn't run input data past 7000 rpm.

I'll give you the link, and you can re-enter the data as you please...

http://www.prestage.com/carmath/dynochart.asp




------------------
Silver 2001 CL-S with NAVI

• Mud guards
• Wheel locks
• Toyo T1S 235/45ZR17-97W* Proxies on 17x8" SSR Competition wheels (48lbs less than stock)
• Kevlar/SS Brake lines ordered
• Comptech headers & sways ready
• Silver AEM CAI ready
• 8 coats of Zaino magic

 

Toker,

I got my best times by running right into the red, the guage seemed to indicate around 7200 ... i'm not sure if there is more power up there, or if you gain by having a higher rpm entry in the next gear...

------------------
Black 2001 Type S
*Eibach Pro-Kit (Waiting to be installed)
*Xephyr Cold Air Intake
*PIAA 19169 Road Lamps
*Rockford 500a2 [FOR SALE]
*Pioneer 12" @ 400w (x2) [FOR SALE]
*77237-SOK-A02
---Still 2 rims not scratched---

 

WebToker,

Shift at 6900-7000. That's what I did to obtain those times that I posted a while back at the track. Anything above that and you'll hit the rev-limiter/fuel cutoff...well at least on my car that's what happened.

------------------
Frank
01-S White/Parchment
Comptech Sways & Springs

 

When I'm using 1->2->d3 I move the shift at 6850 and if I get it just right it actually shifts right around 7000~7100. but if u shift it at 6900 then the fuel cutt off comes on. Very tricky but practice makes perfect.

------------------
CL-S
White/Ebony/Navi/Spoiler/Visor/Full Bra/Mud Guards/Acura Car Cover/Tint 20%,35%,5% on Sun Roof, Rockford 250a2 Amp w/JL10w6 / K&N Drop in Filter.Polarg m-6.
Comptech Headers,Springs,Sways, Eurolite Xenon Crystal high beams.Polarg m6


gtech 0-60 6.03 w/ 438 pound load. preheader.

 

I always thought that the best time to shift was at the peak hp point, or soon after. I'm no pro though, that's for sure.

------------------
2001 Acura 3.2CL Type-S
Satin Silver/Ebony
No Navi/No Spoiler
Competch springs
35% tint
PIAA 19169 bulbs
K&N 33-2178 air filter

The Aviation Zone

 

what does it mean when you shift, usually from 2nd to 3rd, you hear a chirping noise...not from the tires though.

------------------
White/Ebony CL Type S with Navi, 35% tint, Polarg M6 Roadlamps

 

That's what happens when your on a slick surface and shift at high RPMs. It will also do it when going uphill and shifting at high RPMs. I usually get a chirp on takeoff and at the 1>2 shift, but not very often from 2>3.




------------------
2001 Acura 3.2CL Type-S
Satin Silver/Ebony
No Navi/No Spoiler
Competch springs
35% tint
PIAA 19169 bulbs
K&N 33-2178 air filter

The Aviation Zone

 

Hum.... you said NOT from the tires. I have no clue on that one.




------------------
2001 Acura 3.2CL Type-S
Satin Silver/Ebony
No Navi/No Spoiler
Competch springs
35% tint
PIAA 19169 bulbs
K&N 33-2178 air filter

The Aviation Zone

 

Are you sure about that one?

Where is the "chirping" coming from?



------------------
Silver 2001 CL-S with NAVI

• Mud guards
• Wheel locks
• Toyo T1S 235/45ZR17-97W* Proxies on 17x8" SSR Competition wheels (48lbs less than stock)
• Kevlar/SS Brake lines ordered
• Comptech headers & sways ready
• Silver AEM CAI ready
• 8 coats of Zaino magic

 

I guess it could be from 1st to 2nd...but it really doesn't sound like my tires are making that kinda noise. I guess it's normal though to have our cars *chirp*. Just making sure there wasn't anything else wrong with it.

------------------
White/Ebony CL Type S with Navi, 35% tint, Polarg M6 Roadlamps

 

It's very normal if you're shifting near redline. If you're shifting at low RPMs and hear a chirping noise, then I'd worry.




------------------
2001 Acura 3.2CL Type-S
Satin Silver/Ebony
No Navi/No Spoiler
Competch springs
35% tint
PIAA 19169 bulbs
K&N 33-2178 air filter

The Aviation Zone

 

DOH! Pigeon.

i get some chirps coming around corners with roads aren't quite level I'll loose a little traction and chirp the tires a bit. gotta get me some sways

------------------

2001 Acura CL Type S, black/ebony, spoiler, 35% tint, V1, comptech springs, weather mats, piaa19170-doors, piaa19169-road lamps, pia19168-map lights
aim:silvn1
goldn1

 

The stock tires will make a "chirp" like sound without to much "help" on paint strips and concrete roads. They will also make chirping sounds from 1st to 2nd on slippery surfaces.

If you are not really "stepping" on it, and the surface looks really rough, like sandpaper, there is something funny going on.

The stock tires chirp, squeak, and squeal like little piggies, depending on the road surface.


------------------
Silver 2001 CL-S with NAVI

• Mud guards
• Wheel locks
• Toyo T1S 235/45ZR17-97W* Proxies on 17x8" SSR Competition wheels (48lbs less than stock)
• Kevlar/SS Brake lines ordered
• Comptech headers & sways ready
• Silver AEM CAI ready
• 8 coats of Zaino magic