car is suffocating in high rpm's - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

PARAD0X · 04-03-2003, 04:11 PM

I recently got a 95 ka installed in my 91.
It seems to suffocate in the high rpm's, but its wierd. its only like this after driving for 30 minutes or more. it also does it when i turn on the car (cold start) and turn it off, then start it up again w/in the next couple hours. it seems to make alot of noise but not alot of power. any ideas as to what it could be?

DuffMan · 04-03-2003, 04:29 PM

Well 95+'s have different cams which cut into the high end a few HP but if its really bad something else might be wrong.

The bad hot start thing could be a failing engine temp sensor.

PARAD0X · 04-03-2003, 04:39 PM

i had the cams swapped over

orange-grey · 04-03-2003, 07:49 PM

Maybe the cams were installed a few degrees off? I did that on another car once, felt great under 3000 then puked and died.

PARAD0X · 04-03-2003, 07:55 PM

mine kinda feels a little sluggish under 3k, but i do have an n1 single on a n/a car

04-03-2003, 04:11 PM	#1
PARAD0X Zilvia Junkie Join Date: Aug 2002 Location: San Antonio, TX Age: 39 Posts: 498 Trader Rating: (0) Feedback Score: 0 reviews	car is suffocating in high rpm's I recently got a 95 ka installed in my 91. It seems to suffocate in the high rpm's, but its wierd. its only like this after driving for 30 minutes or more. it also does it when i turn on the car (cold start) and turn it off, then start it up again w/in the next couple hours. it seems to make alot of noise but not alot of power. any ideas as to what it could be?

04-03-2003, 04:29 PM	#2
DuffMan Post Whore! Join Date: Oct 2001 Location: in a cardboard box Posts: 2,517 Trader Rating: (0) Feedback Score: 0 reviews	Well 95+'s have different cams which cut into the high end a few HP but if its really bad something else might be wrong. The bad hot start thing could be a failing engine temp sensor.

04-03-2003, 04:39 PM	#3
PARAD0X Zilvia Junkie Join Date: Aug 2002 Location: San Antonio, TX Age: 39 Posts: 498 Trader Rating: (0) Feedback Score: 0 reviews	i had the cams swapped over

04-03-2003, 07:49 PM	#4
orange-grey Leaky Injector Join Date: Aug 2002 Posts: 94 Trader Rating: (0) Feedback Score: 0 reviews	Maybe the cams were installed a few degrees off? I did that on another car once, felt great under 3000 then puked and died.

04-03-2003, 07:55 PM	#5
PARAD0X Zilvia Junkie Join Date: Aug 2002 Location: San Antonio, TX Age: 39 Posts: 498 Trader Rating: (0) Feedback Score: 0 reviews	mine kinda feels a little sluggish under 3k, but i do have an n1 single on a n/a car