Sr20det acting strange - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

vboy720 · 06-21-2007, 06:50 PM

I just recently bought the car about a couple weeks ago, and notice the car acts a little wierd sometimes when i accelerate. When accelerating in any gear, mostly in third or fourth, as the car is climbing in RPM's the engine randomly cuts(bogs?) consecutively. It only happens when i have my foot all the way down to the floor. If im almost full throttle it doesn't happen. I also notice after getting my welded diff a couple days ago, it happens a lot while trying to accelerate in first gear doing a u turn, or sharp donut. Im trying to find the best word to describe what the car does, but hopefully u get what im trying to say. With full throttle, as the rpms rise, it like "glitches" or maybe even feels like the engine is flooding with gas or something. I do have really big back fires/fireballs when i gun it on the freeway in 4th gear.

Overall the car drives fine, does not shake, not ticking, no abnormal sounds. Still drives fast, but only notice the engine does that at full throttle. Im thinking maybe the car needs to be tuned possibly? Maybe because the engine is being flooded with too much fuel at full throttle.

A little background of the car:
S13 redtop sr
Walbro 255
Full 3in turbo back
exedy stage 2 lightened flywheel

If my explanation does not make sense, feel free to try and get a better description.

06-21-2007, 06:50 PM	#1
vboy720 Zilvia Member Join Date: Mar 2005 Location: NorCal Posts: 288 Trader Rating: (2) Feedback Score: 2 reviews	Sr20det acting strange I just recently bought the car about a couple weeks ago, and notice the car acts a little wierd sometimes when i accelerate. When accelerating in any gear, mostly in third or fourth, as the car is climbing in RPM's the engine randomly cuts(bogs?) consecutively. It only happens when i have my foot all the way down to the floor. If im almost full throttle it doesn't happen. I also notice after getting my welded diff a couple days ago, it happens a lot while trying to accelerate in first gear doing a u turn, or sharp donut. Im trying to find the best word to describe what the car does, but hopefully u get what im trying to say. With full throttle, as the rpms rise, it like "glitches" or maybe even feels like the engine is flooding with gas or something. I do have really big back fires/fireballs when i gun it on the freeway in 4th gear. Overall the car drives fine, does not shake, not ticking, no abnormal sounds. Still drives fast, but only notice the engine does that at full throttle. Im thinking maybe the car needs to be tuned possibly? Maybe because the engine is being flooded with too much fuel at full throttle. A little background of the car: S13 redtop sr Walbro 255 Full 3in turbo back exedy stage 2 lightened flywheel If my explanation does not make sense, feel free to try and get a better description.