Engine Lag!!!

justin1642 · 03-29-2006, 06:23 AM

I think so but not 100%. the engine is a jdm engine with 50k miles on it, but it was sitting in a salvage yard and i don't know if it is clogged or what and nobody seems to be able to tell me. i had the exhaust check and it was fine so i am leaning toward the fuel system. cuz when you step on the gas hard it stutters and takes a while to go. but top speed is still there. just not torque and the giddy up. so if anyone can figure out what the problem maybe i would greatly appreciate it thanks!

The engine was bought from Osakas JDM Engines in Canada.

Drag0na5h · 03-29-2006, 07:44 AM

I had a similar problem with my motor. After the first one blew out because the old radiator cracked and leaked another one was put in. Possible similiar to what you did. A 50K motor from Japan. Anyhow after the motor swap the car never ran quite the same. It bogged and wanted to die like how you described when I would step on the gas initially. Accelerating was a little messy at times...but now it's much better. These are the things I did in the order I did them to improve it. #1 Intake helped a bit. Gave the engine more free air...or whatever it could suck in. #2 Seafoam. I seafoamed the engine out and that helped the most. It's really easy to use and do. Beware a lot of smoke. #3 New cat and new muffler. The old exhaust system was bad. This is my most recent fix and I noticed the throttle response now is a lot better. It doesn't bog and want to die at the intersections or in front of my house anymore.

justin1642 · 03-29-2006, 06:46 PM

Thanks for the info i appreciate it i'm gonna have to try the seafoam cuz i already took out the factory airbox and put the adapter in and an air filter.

Thanks again!!!!

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03-29-2006, 06:23 AM	#1
justin1642 3" Exhaust Join Date: Mar 2006 Location: Michigan Posts: 213	I think so but not 100%. the engine is a jdm engine with 50k miles on it, but it was sitting in a salvage yard and i don't know if it is clogged or what and nobody seems to be able to tell me. i had the exhaust check and it was fine so i am leaning toward the fuel system. cuz when you step on the gas hard it stutters and takes a while to go. but top speed is still there. just not torque and the giddy up. so if anyone can figure out what the problem maybe i would greatly appreciate it thanks! The engine was bought from Osakas JDM Engines in Canada. Last edited by justin1642; 03-29-2006 at 06:27 AM.

03-29-2006, 07:44 AM	#2
Drag0na5h 3" Exhaust Join Date: Jul 2005 Posts: 67	I had a similar problem with my motor. After the first one blew out because the old radiator cracked and leaked another one was put in. Possible similiar to what you did. A 50K motor from Japan. Anyhow after the motor swap the car never ran quite the same. It bogged and wanted to die like how you described when I would step on the gas initially. Accelerating was a little messy at times...but now it's much better. These are the things I did in the order I did them to improve it. #1 Intake helped a bit. Gave the engine more free air...or whatever it could suck in. #2 Seafoam. I seafoamed the engine out and that helped the most. It's really easy to use and do. Beware a lot of smoke. #3 New cat and new muffler. The old exhaust system was bad. This is my most recent fix and I noticed the throttle response now is a lot better. It doesn't bog and want to die at the intersections or in front of my house anymore.

03-29-2006, 06:46 PM	#3
justin1642 3" Exhaust Join Date: Mar 2006 Location: Michigan Posts: 213	Thanks for the info i appreciate it i'm gonna have to try the seafoam cuz i already took out the factory airbox and put the adapter in and an air filter. Thanks again!!!!