Car Hits Boost but doesnt Go...

Supra-Man18

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Nov 24, 2007
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miami
All Show no go... I step on it, the twins spool up 15 psi but the car doesnt Go like 15 psi.. It moves like less than stock actually. The car is not putting the power to floor i guess but what can it be.. My clutch isnt slipping.. (not noticably anyway).. I let my friend drive it n go into boost and i as a passenger am not getting sucked in my seat.. My 7M did That ! What can cause this ?
 

annoyingrob

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Jul 5, 2006
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timing could be being pulled back. Are there any codes present? Is the CEL coming on? Are the knock sensors properly wired? Is the IAT and CLT sensor properly working? Are the cam lobes flattened out?

What RPM does it spool by?
 

THE1JZSPECIAL

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Apr 28, 2008
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South Florida
supra-man18;1043080 said:
all Show No Go... I Step On It, The Twins Spool Up 15 Psi But The Car Doesnt Go Like 15 Psi.. It Moves Like Less Than Stock Actually. The Car Is Not Putting The Power To Floor I Guess But What Can It Be.. My Clutch Isnt Slipping.. (not Noticably Anyway).. I Let My Friend Drive It N Go Into Boost And I As A Passenger Am Not Getting Sucked In My Seat.. My 7m Did That ! What Can Cause This ?

What Is Your Setup?
 

Supra-Man18

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Nov 24, 2007
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annoyingrob;1043082 said:
timing could be being pulled back. Are there any codes present? Is the CEL coming on? Are the knock sensors properly wired? Is the IAT and CLT sensor properly working? Are the cam lobes flattened out?

What RPM does it spool by?

Alright.. the CEL is on, one of the codes is no knock sensor signal, before that motor was actually cranked the timing was off so it had to be set again, and what exactly is the IAT and CLT sensors ?
 

Supra-Man18

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Nov 24, 2007
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THE1JZSPECIAL;1043089 said:
What Is Your Setup?

My set up is stock 1jz, stock downpipe, walbro fuel pump, afpr, 3inch cat back, and FMIC, 15psi on the stock twins... and the car goes no where ...
 

THE1JZSPECIAL

Banned
Apr 28, 2008
111
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South Florida
Supra-Man18;1043097 said:
My set up is stock 1jz, stock downpipe, walbro fuel pump, afpr, 3inch cat back, and FMIC, 15psi on the stock twins... and the car goes no where ...

if the computer is not reading a knock sensor signal it wont allow an advance in timimg which explains the no go, So the only code your getting is the knock sensor?
 

Quin

Trans killer
Dec 5, 2006
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Columbus, IN
Supra-Man18;1043080 said:
All Show no go... I step on it, the twins spool up 15 psi but the car doesnt Go like 15 psi.. It moves like less than stock actually. The car is not putting the power to floor i guess but what can it be.. My clutch isnt slipping.. (not noticably anyway).. I let my friend drive it n go into boost and i as a passenger am not getting sucked in my seat.. My 7M did That!What can cause this ?

What can cause this, you ask?

Supra-Man18;1043097 said:
My set up is stock 1jz, stock downpipe, walbro fuel pump, afpr, 3inch cat back, and FMIC, 15psi on the stock twins... and the car goes no where ...

There ya go.

Supra-Man18;1043080 said:
My 7M did that!

TORQUE.
 

annoyingrob

Boosted member
Jul 5, 2006
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Calgary, Alberta, Canada
Supra-Man18;1043096 said:
Alright.. the CEL is on, one of the codes is no knock sensor signal, before that motor was actually cranked the timing was off so it had to be set again, and what exactly is the IAT and CLT sensors ?

Intake air temperature, and coolant temperature.

If you're throwing a knock code though, that's your problem right there. The ECU will pull timing because of it, losing you lots of power.
 

Quin

Trans killer
Dec 5, 2006
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Columbus, IN
soapra;1043148 said:
I got a 1jz here that can make torque, I have no idea what others outside of California do to lose torque, but we got a great amount here! LOL!

I just felt like bustin' somebody's chops, the only 1J I've been in sucked me into the seat pretty good... When the turbo spooled at least:biglaugh:

annoyingrob;1043207 said:
Intake air temperature, and coolant temperature.

If you're throwing a knock code though, that's your problem right there. The ECU will pull timing because of it, losing you lots of power.

Win.
 

Supra-Man18

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Nov 24, 2007
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miami
annoyingrob;1043207 said:
Intake air temperature, and coolant temperature.

If you're throwing a knock code though, that's your problem right there. The ECU will pull timing because of it, losing you lots of power.

Thank you much bro...