7mget runs good til 5psi at wot then feels like itsvjust all motor im running 9 psi

mikehockenberry88

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Apr 3, 2011
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state college
I have a 92 supra with the na-t motor in it everything is from the gte but the block and pistons. I have it running 9psi it runs good until 5psi then feels the same til 9you it feels like im hitting a wall any ideas?
 

mikehockenberry88

New Member
Apr 3, 2011
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state college
mikehockenberry88;1863393 said:
I have a 92 supra with the na-t motor in it everything is from the gte but the block and pistons. I have it running 9psi it runs good until 5psi then feels the same til 9you it feels like im hitting a wall any ideas?
it runs better at about 3/4 throttle then it does at wot
 

mikehockenberry88

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Apr 3, 2011
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state college
ive changed the ignitor coil packs regapped the plugs replaced the air flow meter i dunno what else to try it seems like the throttle response is slower and that the car dosnt rev as fast as it should im going to check the timing again in the am any ideas on what it is or what i should check im not throwing any codes!
 

IndigoMKII

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May 9, 2011
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mikehockenberry88;1863501 said:
The engine dosnt wanna just shut off. Factory turbo and i have a 255lph fuel pump and a aftermarket intercooler.

If you have a higher flowing fuel pump you need to drill out the jtube and probably get an AFPR. Chances are that at full throttle your car is running too rich and bogging itself out.
 

jonahs_supra

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May 17, 2011
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^^ this or the fuel pump are set on 2 voltage settings and maybe your fuel pump isnt getting the high voltage it needs(12v)
low and high...low for cruising and high for kick ass time lol

rewire fuel pump to run 12v constantly and see if that helps
and try everything else others have stated
 

Nick M

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Sep 9, 2005
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mikehockenberry88;1863393 said:
I have a 92 supra with the na-t motor in it everything is from the gte but the block and pistons. I have it running 9psi it runs good until 5psi then feels the same til 9you it feels like im hitting a wall any ideas?

Just an FYI, that is called the short block. If you had a head on it, it would be a long block.

I am not sure what you mean. The car's acceleration doesn't increase as the PSI goes up? Strange that it pulls harder at 3/4 throttle. That can happen with low airflow velocity. Fly by wire cars don't open the throttle to 100% by design if you snap it open as an example. They do go to 100% just not instantly.
 

Nick M

Black Rifles Matter
Sep 9, 2005
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IndigoMKII;1863716 said:
If you have a higher flowing fuel pump you need to drill out the jtube and probably get an AFPR. Chances are that at full throttle your car is running too rich and bogging itself out.

Rich doesn't usually bog unless it is retarded rich without a load. I wonder if we are not getting all the info, like a giant black cloud of smoke at the same time.