HELP!! Losing Power

mhcoss · 04-29-2012, 01:14 AM

Quote:

Originally Posted by cgmg21

Would performance be lost if one would constantly dog, or drive their car really hard?

If you don't break in your motor well.. absolutely

MacLean · 04-29-2012, 01:21 AM

Quote:

Originally Posted by mhcoss

If you don't break in your motor well.. absolutely

Well he has a 350, so that shouldn't be an issue.

mhcoss · 04-29-2012, 02:00 AM

Quote:

Originally Posted by cgmg21

Well he has a 350, so that shouldn't be an issue.

Oh I missed that part

MacLean · 04-29-2012, 02:04 AM

I'm curious to hear what the actual cause is of the power lose is.

roy'sz · 04-29-2012, 06:06 AM

Quote:

Originally Posted by ShockWave

thanks bro! I will look into this!

maybe?
i drove it this morning and seem fine. It still don't seem as fast as it was when I first got it. Maybe in the afternoon when its hot out the car seem to lose power?

im still gonna to get the car check out.

how warm did you get the oil temp to? Also how much fuel did you have in the car? I notice with my car that under 1/2 to 3/8 of a tank my car is a beast. Its a difference of 60.bs of fuel in the tank. In regueards to the temp if its over 240 it does change the timing to prevent limp mode on the car.

sfearl1 · 04-29-2012, 08:19 AM

sounds like a loss in low end torque from the aftermarket exhaust. probably just needs a tune.

op, what other mods have you done?

ShockWave · 05-12-2012, 08:04 PM

Quote:

Originally Posted by roy'sz

how warm did you get the oil temp to? Also how much fuel did you have in the car? I notice with my car that under 1/2 to 3/8 of a tank my car is a beast. Its a difference of 60.bs of fuel in the tank. In regueards to the temp if its over 240 it does change the timing to prevent limp mode on the car.

oil temp is around 230

Quote:

Originally Posted by sfearl1

sounds like a loss in low end torque from the aftermarket exhaust. probably just needs a tune.

op, what other mods have you done?

Full berk exhaust with Berk high flow cats

ShockWave · 06-29-2012, 12:23 PM

seem like Im having throttle lag when oil temp gets up to 230. Anyone having same issues? What can i do to fix this? The car lag even more when its hot outside.

samb03 · 07-02-2012, 06:23 AM

how much is your power loss. The dealer is going to tell you all is fine if it is just slightly less than when it was new. Not all cars are built the same, Nissans imparticular are bad about. After working in a dealer for a couple years, I drove alot of differnent cars. So comparing same make and model side-by-side there are differences. They had a self-learning ECU that also greatly affects it. The people that aggressively drove, not beat the crap out of it, their carhas were faster with worse gas miliage averages (even when driving with the cruise on down the highway). Those that babied and didn't hit high revs often had slower cars with better gas miliage. I don't know if things have changed but it stored in solid state memory that couldn't be erased by disconnecting the battery. It had to be done on the Consult (Nissan scan tool). If you drive a car 1 way for long enough it was eventual take that into account and modify the injector and timing settings. It isn't going to affect much by taking out and romping on it for 5 minutes once it is used to easy driving.

For example my friend who is still a Nissan tech had a Titan. He drove it pretty hard everywhere he went. It was faster than most but even driving down the highway at 70 for 100+ miles the most it ever got was 12.5 mpg. Another similar Titan I know gets 17. That is36% increase. If average 11 droving 60miles round trip to work with 6 stop signs total. Mostly highway.

Compdoc777 · 07-02-2012, 07:05 AM

It's the heat, mine does the same. Could also be a little of missing tune with the exhaust. The car get heat soak bad when temps are in the upper 90s, and in the 100s. CAI will help. Seems like this car was designed for a cooler climate.

Same thing happened with my RX7 R1, RSX S, and Sky. Get a CAI.

What need to be done is like my RX7 we need a plate under the car that blocks the heat from the exhaust from the tranny. That heat soaks the trans, the motor being all bundled up under the hood without proper ventilation heats soaks the motor. When I come home from my 30 mile trip home through stop and go the whole car is radiating heat. Even my trans tunnel is hot, if I touch my carpet near the inside of the seats either side on top of the carpet it's about 105 degrees. I measured with my laser thermometer.

The intake temps in the car have to be off the scale until you get moving, but stop and sit in that heat in traffic and the temps explode under that hood in Houston heat the car is like a slug.

I suggest a trans cooler, oil,cooler and CAI. I even want to modify my bumper so I can get cool air straight to the CAI and brakes. Then modify a heat reflective plate under the trans to block the heat from the exhaust like most sports cars have standard.

ShockWave · 07-02-2012, 12:50 PM

Quote:

Originally Posted by Compdoc777

It's the heat, mine does the same. Could also be a little of missing tune with the exhaust. The car get heat soak bad when temps are in the upper 90s, and in the 100s. CAI will help. Seems like this car was designed for a cooler climate.

Same thing happened with my RX7 R1, RSX S, and Sky. Get a CAI.

What need to be done is like my RX7 we need a plate under the car that blocks the heat from the exhaust from the tranny. That heat soaks the trans, the motor being all bundled up under the hood without proper ventilation heats soaks the motor. When I come home from my 30 mile trip home through stop and go the whole car is radiating heat. Even my trans tunnel is hot, if I touch my carpet near the inside of the seats either side on top of the carpet it's about 105 degrees. I measured with my laser thermometer.

The intake temps in the car have to be off the scale until you get moving, but stop and sit in that heat in traffic and the temps explode under that hood in Houston heat the car is like a slug.

I suggest a trans cooler, oil,cooler and CAI. I even want to modify my bumper so I can get cool air straight to the CAI and brakes. Then modify a heat reflective plate under the trans to block the heat from the exhaust like most sports cars have standard.

I have a Gen 3 cold air intake. I think i need an oil cooler and fan mod. whats the best oil cooler for this car?

ShockWave · 07-02-2012, 12:51 PM

Quote:

Originally Posted by samb03

how much is your power loss. The dealer is going to tell you all is fine if it is just slightly less than when it was new. Not all cars are built the same, Nissans imparticular are bad about. After working in a dealer for a couple years, I drove alot of differnent cars. So comparing same make and model side-by-side there are differences. They had a self-learning ECU that also greatly affects it. The people that aggressively drove, not beat the crap out of it, their carhas were faster with worse gas miliage averages (even when driving with the cruise on down the highway). Those that babied and didn't hit high revs often had slower cars with better gas miliage. I don't know if things have changed but it stored in solid state memory that couldn't be erased by disconnecting the battery. It had to be done on the Consult (Nissan scan tool). If you drive a car 1 way for long enough it was eventual take that into account and modify the injector and timing settings. It isn't going to affect much by taking out and romping on it for 5 minutes once it is used to easy driving.

For example my friend who is still a Nissan tech had a Titan. He drove it pretty hard everywhere he went. It was faster than most but even driving down the highway at 70 for 100+ miles the most it ever got was 12.5 mpg. Another similar Titan I know gets 17. That is36% increase. If average 11 droving 60miles round trip to work with 6 stop signs total. Mostly highway.

its not power loss, its throttle lag.

bushman66 · 07-02-2012, 01:08 PM

"Bogging" in first gear

Read this thread. Mine was doing the same thing (ie throttle lag in 1st gear). I just added the 34 row Z1 Motorsports cooler (and deleted the factory cooler). Eliminated ~80% of the bogging problem, its still there but greatly diminished. Next step will be to add the UpRev tune (with cooling fan tune).

Its an ECU programming issue. Apparently Nissan hot weather tests near the Arctic circle...

Compdoc777 · 07-02-2012, 05:16 PM

In the winter my car is a beast. The oil cooler has helped just put mine on about 2 months ago. I never get above 200 oil temps now. But it does not help the bogging once the car is hot. First few miles are great but when sitting in stop and go. Of is there

04-29-2012, 08:19 AM	#21 (permalink)
sfearl1 A True Z Fanatic Join Date: Oct 2011 Location: St. Louis Posts: 2,300 Drives: 2013 FBO E85 GTR Rep Power: 18	sounds like a loss in low end torque from the aftermarket exhaust. probably just needs a tune. op, what other mods have you done? __________________ Scott

07-02-2012, 06:23 AM	#24 (permalink)
samb03 Base Member Join Date: Nov 2010 Location: western Oklahoma Posts: 164 Drives: Black Cherry Sport Rep Power: 15	how much is your power loss. The dealer is going to tell you all is fine if it is just slightly less than when it was new. Not all cars are built the same, Nissans imparticular are bad about. After working in a dealer for a couple years, I drove alot of differnent cars. So comparing same make and model side-by-side there are differences. They had a self-learning ECU that also greatly affects it. The people that aggressively drove, not beat the crap out of it, their carhas were faster with worse gas miliage averages (even when driving with the cruise on down the highway). Those that babied and didn't hit high revs often had slower cars with better gas miliage. I don't know if things have changed but it stored in solid state memory that couldn't be erased by disconnecting the battery. It had to be done on the Consult (Nissan scan tool). If you drive a car 1 way for long enough it was eventual take that into account and modify the injector and timing settings. It isn't going to affect much by taking out and romping on it for 5 minutes once it is used to easy driving. For example my friend who is still a Nissan tech had a Titan. He drove it pretty hard everywhere he went. It was faster than most but even driving down the highway at 70 for 100+ miles the most it ever got was 12.5 mpg. Another similar Titan I know gets 17. That is36% increase. If average 11 droving 60miles round trip to work with 6 stop signs total. Mostly highway. Last edited by samb03; 07-02-2012 at 06:33 AM.

07-02-2012, 07:05 AM	#25 (permalink)
Compdoc777 Enthusiast Member Join Date: Dec 2011 Location: Cypress Posts: 277 Drives: 2011 Nismo #4 MB Rep Power: 13	It's the heat, mine does the same. Could also be a little of missing tune with the exhaust. The car get heat soak bad when temps are in the upper 90s, and in the 100s. CAI will help. Seems like this car was designed for a cooler climate. Same thing happened with my RX7 R1, RSX S, and Sky. Get a CAI. What need to be done is like my RX7 we need a plate under the car that blocks the heat from the exhaust from the tranny. That heat soaks the trans, the motor being all bundled up under the hood without proper ventilation heats soaks the motor. When I come home from my 30 mile trip home through stop and go the whole car is radiating heat. Even my trans tunnel is hot, if I touch my carpet near the inside of the seats either side on top of the carpet it's about 105 degrees. I measured with my laser thermometer. The intake temps in the car have to be off the scale until you get moving, but stop and sit in that heat in traffic and the temps explode under that hood in Houston heat the car is like a slug. I suggest a trans cooler, oil,cooler and CAI. I even want to modify my bumper so I can get cool air straight to the CAI and brakes. Then modify a heat reflective plate under the trans to block the heat from the exhaust like most sports cars have standard. Last edited by Compdoc777; 07-02-2012 at 09:20 AM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Losing Power	HandnPantz	Engine & Drivetrain	4	01-21-2012 10:29 PM
Losing gas while parked. help!	Yaunclesam	Engine & Drivetrain	22	11-23-2011 04:20 AM
This close to losing my FOB	Lemers	Nissan 370Z General Discussions	23	01-30-2011 12:12 PM
Losing PSI, suggestions?	toxik	Wheels & Tires	7	08-10-2010 10:49 AM
Losing Weight	cconrado	Brakes & Suspension	3	05-19-2010 03:41 PM

04-29-2012, 02:04 AM	#19 (permalink)
MacLean A True Z Fanatic Join Date: Apr 2012 Location: Houston Posts: 1,589 Drives: '12 GM Nismo # 0445 Rep Power: 16	I'm curious to hear what the actual cause is of the power lose is.

06-29-2012, 12:23 PM	#23 (permalink)
ShockWave Enthusiast Member Join Date: Dec 2011 Location: houston Posts: 303 Drives: 350z Rep Power: 13	seem like Im having throttle lag when oil temp gets up to 230. Anyone having same issues? What can i do to fix this? The car lag even more when its hot outside.

07-02-2012, 01:08 PM	#28 (permalink)
bushman66 Base Member Join Date: May 2010 Location: AZ Posts: 112 Drives: 2012 370Z Red Sp Pkg Rep Power: 15	"Bogging" in first gear Read this thread. Mine was doing the same thing (ie throttle lag in 1st gear). I just added the 34 row Z1 Motorsports cooler (and deleted the factory cooler). Eliminated ~80% of the bogging problem, its still there but greatly diminished. Next step will be to add the UpRev tune (with cooling fan tune). Its an ECU programming issue. Apparently Nissan hot weather tests near the Arctic circle...

07-02-2012, 05:16 PM	#29 (permalink)
Compdoc777 Enthusiast Member Join Date: Dec 2011 Location: Cypress Posts: 277 Drives: 2011 Nismo #4 MB Rep Power: 13	In the winter my car is a beast. The oil cooler has helped just put mine on about 2 months ago. I never get above 200 oil temps now. But it does not help the bogging once the car is hot. First few miles are great but when sitting in stop and go. Of is there