zainanwar

hello. can anybody plz advice that how can I perfectly launch my 8 and what is the best rpm to shift from 2nd to 3rd and onwards.

kersh4w

iTrader: (3)

launch? or just drive?

for the best launch rev to 8k rpm and ride the clutch out. and then simply shift at 9.3k rpm.

for normal driving, hold the clutch down and step on the gas. as you step on the gas, slowly let the clutch out. then shift at around 3k. or anywhere from 2.5k-3.5k. at 3.75k the secondary somethings (ports?) open so then you get reduced gas mileage.

DarkBrew

It depends on how fast you're driving.
I usually shift somewhere between 3500 and 5500 for normal driving.

kersh4w

iTrader: (3)

i bet you get awesome gas mileage.

DarkBrew

There really isn't any way to get good mileage without using a different car.
My strategy is to stay out of traffic; avoid stop and go.

mike73737

Bad gas mileage is just a sign you're driving it right.

SmokeyTheBalrog

I've gone from alway shifting at 3K, to shifting before 3.7, to shifting around or a little after 4 and haven't noticed a big difference in gas mileage. The only way to really see is measure it for yourself, since every car is different.

Try different methods, see which one works out.

Also, this is coming from someone who is suggesting launching at 8k. Which is a wonderful way to kill your clutch, or something else. If you are looking for a high sleep launch 4 to 5k is where you want to start. And something you shouldn't do everyday unless you don't mind replacing your clutch somewhat often.

Hell, I start spinning wheels if I clutch too fast in a mid 3K launch.

chetrickerman

yup, i just put it to 4k, let the clutch out kind of slow, then shift at 9, since the tach reading is 500 rpms higher than the actual rpms, that was a buzzkill for me

zainanwar

can anyone tell me that why isn't it best to launch at the full rpm ( at the fuel cutoff) . or y isn't it gud to change the gear at the fuel cutoff. I dnt mind the gas milage. I want speed. thankx in advance

chetrickerman

clutch failure? transmission failure? that puts a HUGE amount of stress on your transmission and your clutch.

Kane

iTrader: (1)

Launching - wear and tear on the clutch and tires. If you drop the hammer all you will do is spin out anyway; plus put a ton of wear on your clutch. For max speed you want to launch right at the limit of the grip of your tires (think a few slips and your off). But tht is way easier said than done.

The Drunk IT Guy

I think kersh4w was kidding, don't clutch dump from 8k...


For a fast start 5k seems to get the job done, and you'll usually hold 4-5k as the clutch fully engages.. For normal driving I start at 3.5-4k or else it tends to dip when it engages..

Revvittupp

3k-4k? It seems to me some of you are missing the point of th ecar.

When driving as slow as traffic can force me to I MAY shift that low, but based on how hard I'm pushing on the gas pedal I'm shifting anywhere from 4k-9k...

The Drunk IT Guy

I'm talking about engaging into 1st.. After that the RPM is usually as high as conditions will allow..

If I go further than a mile or two, I'll get at least one redline.. But traffic is just always in the way, onramps are great...

Razz1

I just drop the clutch at 8k and let her rip..then shift into second at 4k and 3rd at 5k.

Mendossa

I tried doing that for the first year... then I decided I wasn't forking over the 8's monthly payment to drive along shifting a rotary engine at 2.5k-3.5k trying to save gas.

Around town I usually keep it a 3.5k and shift around 6000rpm. It only sees 2.5k when I'm on long road trips... it's true that on long distance you can see the benefit from keeping the 3.7k ports from opening.

I remember reading about a club member who changed his "cruising rpm" from 2.5k to 3.5k and reported increasing his fuel mileage, which according to him was from keeping the engine closer to it's optimum performance/fuel economy sweet spot rather than having it in semi-bogging state at 2.5k.

Moreover, I think working the "mid range" more often can be beneficial from the carbon deposit point of view, instead of having it 80% of the time a 2.5k and revving it to 9k once or twice per ride which ends up being what, a handful of seconds?

+1

Nothing scientific or judgemental here, just my 2 cents

csiepka

I bought my RX8 about 2 weeks ago (still trying to find the sweet spot)...

Cruising, I was at 4,000 and was amazed at how fast my gas was disappearing... granted, I knew this car would guzzle gas, but driving to work everyday and using more then a 1/4 tank for the trip killed me....

I did change my habits and started shifting at 4 (with the occasional 7,8,9)and have been cruising at 2.5 or 3 and noticed a big difference in gm.

Keep in mind, I ride on the ever-so unpredictable highway, so cruising includes stop-and-go.

04RX8man

ahh...3 yr old revivals they are the best!

04RX8man

ok 2 yrs

Spinning Sushi

iTrader: (21)

The best way to drive is to shift at 12,000 RPMs each time. Try it and tell me how it feels.

csiepka

pfft, i like revivals!

Marklar

Shift when you hear the beep. Cruise in the highest gear that doesn't take you below 3k. And don't forget to do double-clutch drops to third or second for unnecessary acceleration when passing.

csiepka

Mine doesn't beep....

xun4gvn4everx

iTrader: (2)

When you start to lift off the ground, shift to 3rd, then hit the NOS.