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2jz block question...

Old 07-20-06, 01:47 PM
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exodus_2
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Default 2jz block question...

i think i remember seeing some thread about this but i couldn't find it anymore....
does 2002 is300 2jz block and 92sc300 block are same??? if so does is300 block will bolt onto sc300 head???
Old 07-20-06, 02:51 PM
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soarer479
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it will bolt on but the bottom end is different the vvti motors have much weaker internals
Old 07-20-06, 03:57 PM
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ohhhh i see then if i go NA-T how much horsepower can it be hold upto??? i was looking for like 400 will the vvti block will hold that much????
Old 07-20-06, 05:50 PM
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Red face

Originally Posted by exodus_2
ohhhh i see then if i go NA-T how much horsepower can it be hold upto??? i was looking for like 400 will the vvti block will hold that much????
I'm no 2jz-ge vvti expert, but I've known of several persons blowing those engines after the 330rwhp levels.
Old 07-20-06, 08:10 PM
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im not completely sure but i think 400 is fine for the vvti bottom end but i would get ahold of lex luthor he would know better than me
Old 07-20-06, 08:56 PM
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If you're wondering about IS300 VVTi GTEs, I'd check either in the IS forums here, or over on www.my.is

I've heard after 450 rwhp... time's-a-tickin'

Either way, the connecting rods are made out of #2 pencils by comparison to the earlier GTE & GE rods.

Lex Luthor had an issue with this... search sky light or window in this forum and you'll see what I mean
Old 07-20-06, 09:26 PM
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95 Integra
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So heres any idea, buy the vvti block and switch out the piston/rods with some GTE/GE units. It wont take an extra hour to pop them out and back in since the block is already out and the head is off.
Old 07-20-06, 10:58 PM
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Originally Posted by SupraCoup3
If you're wondering about IS300 VVTi GTEs, I'd check either in the IS forums here, or over on www.my.is

I've heard after 450 rwhp... time's-a-tickin'

Either way, the connecting rods are made out of #2 pencils by comparison to the earlier GTE & GE rods.

Lex Luthor had an issue with this... search sky light or window in this forum and you'll see what I mean
Hahah is that so? I did not know that. I was kind of curious as to why people werent turboing these motors. I thought it was because of the VVT-I or OBD2 or something. But I guess its because of that .
Old 07-21-06, 08:11 AM
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Originally Posted by 95 Integra
So heres any idea, buy the vvti block and switch out the piston/rods with some GTE/GE units. It wont take an extra hour to pop them out and back in since the block is already out and the head is off.

obviously you have never built a motor..........
Old 07-21-06, 09:44 AM
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SupraCoup3
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Originally Posted by soarer479
obviously you have never built a motor..........
Ouchies! (let's be nice gents )


Check over on My.is -- SophieSleeps has a nearly complete write-up on a installing GTE internals into his 2001 IS 2JZ-GE VVTi block.

It's not exactly plug and play, but the parts do fit.
Old 07-21-06, 10:06 AM
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95 Integra
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Originally Posted by soarer479
obviously you have never built a motor..........

Actually I've built 5-6 as of this point.....so obviously you dont know wtf you're talking about....
Old 07-21-06, 03:00 PM
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your right i dont know what im talking about and i dont own dynamic racing.... a big performance shop in florida ....... and i havent built countless motors....... not quite as easy as just popping things right in seeing as how you will need new rod bolts pressed in and need the cylinder walls honed at the very least ... i could go on... but wait i dont know what im talking about.

sorry to get off topic fellas
Old 07-21-06, 03:26 PM
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95 Integra , you do make it seem like its a plug and play affair which it is far from. I've built my share of motors and its not a walk in the park especially for novice mechanics. Yes it does take about an hour to pop in some new pistons and rods but how about everything mentioned by soarer479? The list does go on and its not what you make it out to be. Its not as easy as "pop them out and back in ".
Old 07-21-06, 04:17 PM
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95 Integra
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Yea, and you need to spec out some bearings. I will say that you dont need new rod bolts (oh ****, I reused my stock headbolts 5....yes count them 5 times....and they worked just freakin fine....I've also reused rod bolts (spinning to 9000 rpms I might add) with no problems at all). I will also say that honing the cylinder walls isnt 100% necessary either. On top of that, the bearing thickness runs such a tight tolerence that most "novice" builders dont have the tools to correctly measure and achieve the proper specs. On top of that, figure that you can run a pretty large range of clearences (some people like them a little tight, others a little loose....JE runs their pistons smaller then most other companies) that having a perfect bearing clearence isnt 100% necessary either. So in my opinion, "slapping" them in will leave the motor in the same condition it was in previously (with 100k on it). Now if you'd like to take the time to hone the cylinders, get new bearings and rings to put it up to "new" spec, thats fine too. On the other hand you dont "have" to do so, the ***** will crank and run for years on end.
Old 07-21-06, 04:23 PM
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SupraCoup3
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http://my.is/forums/showthread.php?t=286897

1) read the tutorial in the above thread.
2) decide for yourself if it's easy or not
3) take the pissing contest to PM.


John

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