1jz turbos

dcrusupra · 01-03-2006, 07:09 AM

Whats the max boost the 1jzs turbos (ct12a's i believe) can handle? I found a nice one that im looking into buying. I'm lookin to hit the 400 mark with the 1jz. Hopefully

suprra_girl · 01-03-2006, 09:21 AM

i believe they can handle horsepower... what they can't handle is lots of boost
probly 14psi before you start grenading the ceramic blades?

anyone else got any input?

ekoston69 · 01-03-2006, 10:38 AM

Yep ur living on borrowed time running the ct12a's on the 1jz anywhere over about a bar of boost

the_fallen · 01-03-2006, 09:45 PM

we've been running the ct-12a's on my 1jz for over 5 years on 17 psi and still going strong. so far car has got 243rwkw and still need new intercooler, and a better stand alone ecu. worst problem we've had is blowing off the BOV.

dcrusupra · 01-03-2006, 09:52 PM

Yea i heard there was a problem with the BOV, he said something about buying a block-off plate but i dont remember exactly what he said. So the car i'm looking at that has it doesnt have a BOV.

the_fallen · 01-04-2006, 07:06 AM

if you're running a turbo'd car, don't run it without a BOV. will damage your turbo's from compressor surge on throttle body close.the problem of blowing off the BOV that we had was not a problem with the BOV or turbo's, but more the piping that we had custom made to have a BOV in the new setup, as the old position for the BOV was no longer there. was just the hose clamps didn't hold it well enough, and worked loose.

dcrusupra · 01-04-2006, 07:37 AM

Well is there a problem with the BOVs that require a block-off plate. Because now I'm confused as to what I heard. lol. Damn memory.

suprra_girl · 01-04-2006, 09:14 AM

i believe the stock 1jz bov's are horrendous for leaking hence why you need a block off plate and install a new bov

the_fallen · 01-05-2006, 08:05 AM

mine is just starting to release funny after 10 odd years that we've been giving the car a hard time, of which 5 was at 17psi, so thats hardly horrendous. to get an aftermarket BOV yes you would need a block off plate, so that you could mount the aftermarket BOV elsewhere in the piping.

suprra_girl · 01-05-2006, 08:51 AM

^ that's good for your "one" 1jz
you do realise there's more than one in the world right

01-03-2006, 07:09 AM	#1
dcrusupra 500whp yet? Join Date: Aug 2005 Location: Plantation, Fl. Posts: 1,052	1jz turbos Whats the max boost the 1jzs turbos (ct12a's i believe) can handle? I found a nice one that im looking into buying. I'm lookin to hit the 400 mark with the 1jz. Hopefully __________________ New Rebuild My CarDomain

01-03-2006, 09:21 AM	#2
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	i believe they can handle horsepower... what they can't handle is lots of boost probly 14psi before you start grenading the ceramic blades? anyone else got any input? __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

01-03-2006, 09:52 PM	#5
dcrusupra 500whp yet? Join Date: Aug 2005 Location: Plantation, Fl. Posts: 1,052	Yea i heard there was a problem with the BOV, he said something about buying a block-off plate but i dont remember exactly what he said. So the car i'm looking at that has it doesnt have a BOV. __________________ New Rebuild My CarDomain

01-04-2006, 07:37 AM	#7
dcrusupra 500whp yet? Join Date: Aug 2005 Location: Plantation, Fl. Posts: 1,052	Well is there a problem with the BOVs that require a block-off plate. Because now I'm confused as to what I heard. lol. Damn memory. __________________ New Rebuild My CarDomain

01-04-2006, 09:14 AM	#8
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	i believe the stock 1jz bov's are horrendous for leaking hence why you need a block off plate and install a new bov __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

01-03-2006, 10:38 AM	#3
ekoston69 Stock Join Date: Dec 2005 Posts: 18	Yep ur living on borrowed time running the ct12a's on the 1jz anywhere over about a bar of boost

01-03-2006, 09:45 PM	#4
the_fallen 3" Exhaust Join Date: Nov 2004 Posts: 81	we've been running the ct-12a's on my 1jz for over 5 years on 17 psi and still going strong. so far car has got 243rwkw and still need new intercooler, and a better stand alone ecu. worst problem we've had is blowing off the BOV.

01-04-2006, 07:06 AM	#6
the_fallen 3" Exhaust Join Date: Nov 2004 Posts: 81	if you're running a turbo'd car, don't run it without a BOV. will damage your turbo's from compressor surge on throttle body close.the problem of blowing off the BOV that we had was not a problem with the BOV or turbo's, but more the piping that we had custom made to have a BOV in the new setup, as the old position for the BOV was no longer there. was just the hose clamps didn't hold it well enough, and worked loose.

01-05-2006, 08:05 AM	#9
the_fallen 3" Exhaust Join Date: Nov 2004 Posts: 81	mine is just starting to release funny after 10 odd years that we've been giving the car a hard time, of which 5 was at 17psi, so thats hardly horrendous. to get an aftermarket BOV yes you would need a block off plate, so that you could mount the aftermarket BOV elsewhere in the piping.

01-05-2006, 08:51 AM	#10
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	^ that's good for your "one" 1jz you do realise there's more than one in the world right __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

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