SC- 1st Gen (1992-2000)

STOCK 1JZ 906rwhp

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Old 11-04-12, 11:49 AM
  #46  
INTIMAZY
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Keep in mind a 725cc injector means NOTHING without a fuel pressure PSI.
Old 11-04-12, 01:13 PM
  #47  
seanf
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Originally Posted by INTIMAZY
Keep in mind a 725cc injector means NOTHING without a fuel pressure PSI.
correct line pressure is about 65 + psi
Old 11-04-12, 04:45 PM
  #48  
spoolxexo
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But besides that fellas, it's a ZEX kit, it has it's own fuel solenoid for nitrous enrichment.

It's not like he has 750cc injectors supporting 900hp which is what most of you guys are thinking.

And in regards to the RB question, the answer is they have the most horribly designed oil pumps because of the metal used, and overall tinny dimensions.

It's not uncommon to have an RB lose every pound of oil pressure at 7000RPM, completely destroying the engine. That, and they are interference design as well.

I'm pretty sure there hasn't been to many "My 1JZ oil pump exploded" or "1JZ Damn-bent valves again" threads, and because of that a Nissan owner picked up a ton of reliability and a whole bunch of stock head power!.
Old 11-04-12, 07:39 PM
  #49  
INTIMAZY
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Not to mention the mains on RBs are... meh.

Girdles are their best friends.
Old 11-04-12, 08:51 PM
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Str8Six
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Rb owner here.. Whenever i see a clean crank forsale i always pick it up! Rb's love to eat bearings in higher rpm's.
Old 11-05-12, 07:07 AM
  #51  
kapetajr
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Originally Posted by Str8Six
Rb owner here.. Whenever i see a clean crank forsale i always pick it up! Rb's love to eat bearings in higher rpm's.
Truth, my buddy has a 25, and 26 that both need bearings..lol
Old 11-05-12, 09:16 AM
  #52  
seanf
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Originally Posted by kapetajr
Truth, my buddy has a 25, and 26 that both need bearings..lol
I know the issues with the rb motors got a friend with 60k + in rebuilds / parts just for a mere 450hp and spinning high rpm for track use ie drift
I swore wouldn't make same mistake
Old 11-05-12, 09:29 AM
  #53  
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I was basing all of my comments knowing that he was running 65psi press. There's other factors you have to key in here. Such as BSFC. When I was doing the math quickly on this I wasn't 100% sure off the top of my head what BSFC was for q16. I still stand by the fact that those injectors have got to be damn near maxed out lol. But again he's done an awesome job getting it to make the power it did.
Old 12-06-12, 07:07 AM
  #54  
seanf
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Originally Posted by Knuckleup
I was basing all of my comments knowing that he was running 65psi press. There's other factors you have to key in here. Such as BSFC. When I was doing the math quickly on this I wasn't 100% sure off the top of my head what BSFC was for q16. I still stand by the fact that those injectors have got to be damn near maxed out lol. But again he's done an awesome job getting it to make the power it did.
Well the injectors and pumps will work to 130psi but I've test mine at 100 psi and dialed it back to 65 for tuning with the extra pressure the 725cc are as efficient as 1000cc they are amazing injectors well worth $ will be running 2000cc Id in 2jz mkiv in spring once done on 1 jz skyline
Old 12-06-12, 10:50 AM
  #55  
Luv2xl
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healthy 1J..
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