Jerky at low RPMS

zZSportZz · 08-12-2009, 02:07 PM

I've felt the same thing. But for me its shifting from 1st to 2nd that seems a little clunky...and no so much the start. Its like the rpms take forever to drop...I have to shift slooooooooooooow to be smooth. Maybe its just me, I don't know.

m4a1mustang · 08-12-2009, 02:10 PM

Under normal driving I have to take it easy on the 1-2 for a smooth shift.

khtso · 08-12-2009, 02:22 PM

Quote:

Originally Posted by m4a1mustang

Under normal driving I have to take it easy on the 1-2 for a smooth shift.

Same with me. The car is so much smoother at low rpms and 1st to 2nd shift when I accelerate hard!

spearfish25 · 08-13-2009, 07:41 PM

Quote:

Originally Posted by m4a1mustang

Under normal driving I have to take it easy on the 1-2 for a smooth shift.

Yep, 1st gear allows you to feel the engine's torque the most. Drive along in 1st gear at 3k RPM and then floor it. You'll spin the tires and your neck will snap back. Do that in 6th gear and you'll slowly accelerate. The lower the gear, the more torque you'll be experiencing. This can make the herky-jerky feeling if you aren't smooth on the accelerator and also makes the 1-2 shift the most challenging for smoothness. This is also why you should start off in 2nd gear from a stop when driving in snow so you don't spin the tires as readily.

Red370 · 08-13-2009, 07:54 PM

Quote:

Originally Posted by spearfish25

Yep, 1st gear allows you to feel the engine's torque the most. Drive along in 1st gear at 3k RPM and then floor it. You'll spin the tires and your neck will snap back. Do that in 6th gear and you'll slowly accelerate. The lower the gear, the more torque you'll be experiencing. This can make the herky-jerky feeling if you aren't smooth on the accelerator and also makes the 1-2 shift the most challenging for smoothness. This is also why you should start off in 2nd gear from a stop when driving in snow so you don't spin the tires as readily.

ive tried this and it is VERY hard to avoid stalling, guess I should really give it some juice, maybe thatll work.

spearfish25 · 08-13-2009, 10:02 PM

Quote:

Originally Posted by Red370

ive tried this and it is VERY hard to avoid stalling, guess I should really give it some juice, maybe thatll work.

I bet you'd spin the tires if you pop the clutch at 5k RPM from a stop in 2nd gear.

Red370 · 08-13-2009, 11:01 PM

Quote:

Originally Posted by spearfish25

I bet you'd spin the tires if you pop the clutch at 5k RPM from a stop in 2nd gear.

I will try this tomorrow with haste!

armensti · 08-14-2009, 03:54 AM

Quote:

Originally Posted by spearfish25

I bet you'd spin the tires if you pop the clutch at 5k RPM from a stop in 2nd gear.

i dont think thats possible....... is it?

m4a1mustang · 08-12-2009, 02:41 PM

All I have to say is "don't fear the gear."

rednek01 · 08-12-2009, 03:09 PM

Quote:

Originally Posted by m4a1mustang

All I have to say is "don't fear the gear."

I know that is what everyone keeps telling me

tonmed123 · 08-12-2009, 11:42 PM

Quote:

Originally Posted by m4a1mustang

All I have to say is "don't fear the gear."

Dont fear RPM's either, give it the gas !

AK370Z · 08-13-2009, 01:15 AM

Quote:

Originally Posted by m4a1mustang

All I have to say is "don't fear the gear."

Quote:

Originally Posted by tonmed123

Dont fear RPM's either, give it the gas !

I think m4a1mustang was poking a little fun as there's a famous song by Blue Oyster Cult - Don't fear the reaper (or I could be wrong)

I have noticed this since day 1. It's because of the lack of low end tq of the Vq37VHR VVEL .As Modshack said, be a little aggressive on the gas pedal. I have trained my right foot to press the gas pedal enough to not have any jerkiness.

Red370 · 08-12-2009, 02:59 PM

I do hear 4.10s are excellent for drifting, I say give that a shot!

DIGItonium · 08-12-2009, 04:18 PM

That's true, engagement into 2nd gear is slower when driving at slow speeds. You shouldn't need to shift into the gear so quickly because of the clunk and jerk. Try pressing in the clutch pedal a bit quicker than usual and ease it when you let it out. I've managed to change my footwork and driving the Z has been much more smooth and rewarding.

FricFrac · 08-12-2009, 11:14 PM

I've found a fix to the jerkyness problem. While in 1st rev the engine to 4K + with the clutch in. Keep your foot on the throttle and dump the clutch while depressing the throttle. The rev limiter will kick in at 7500 RPM. That will be your signal to engage the clutch again and shift into second. Dump the clutch again while maintaining the throttle and you'll be off without any jerking..... If this is to agressive for you the alternative is to get the automatic. Problem solved!

08-12-2009, 02:07 PM	#1 (permalink)
zZSportZz A True Z Fanatic Join Date: Mar 2009 Location: Maryland Posts: 1,095 Drives: 370z Blk on Blk 6MT Rep Power: 19	I've felt the same thing. But for me its shifting from 1st to 2nd that seems a little clunky...and no so much the start. Its like the rpms take forever to drop...I have to shift slooooooooooooow to be smooth. Maybe its just me, I don't know. __________________ --Rick

08-12-2009, 02:10 PM	#2 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	Under normal driving I have to take it easy on the 1-2 for a smooth shift. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

08-12-2009, 02:41 PM	#9 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	All I have to say is "don't fear the gear." __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

08-12-2009, 04:18 PM	#14 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	That's true, engagement into 2nd gear is slower when driving at slow speeds. You shouldn't need to shift into the gear so quickly because of the clunk and jerk. Try pressing in the clutch pedal a bit quicker than usual and ease it when you let it out. I've managed to change my footwork and driving the Z has been much more smooth and rewarding. __________________

08-12-2009, 11:14 PM	#15 (permalink)
FricFrac A True Z Fanatic Join Date: Dec 2008 Location: Victoria, BC Posts: 1,481 Drives: 370Z 300ZX 280ZX 240 Rep Power: 229	I've found a fix to the jerkyness problem. While in 1st rev the engine to 4K + with the clutch in. Keep your foot on the throttle and dump the clutch while depressing the throttle. The rev limiter will kick in at 7500 RPM. That will be your signal to engage the clutch again and shift into second. Dump the clutch again while maintaining the throttle and you'll be off without any jerking..... If this is to agressive for you the alternative is to get the automatic. Problem solved! __________________ '09 370Z - '93 300ZX Vert - '83 280ZX - '83 280ZXT -'81 280ZXT stroker - '72 240Z - Stillen CBE, HFC, G3, Grounding Kit, Sways // Swift Spring // H&R 15mm // 5% Tint // Clear Bra //

08-12-2009, 02:59 PM	#13 (permalink)
Red370 A True Z Fanatic Join Date: Jul 2009 Location: Kaiserslautern, Germany Posts: 4,391 Drives: your mom to church Rep Power: 297	I do hear 4.10s are excellent for drifting, I say give that a shot!