Direct port on 2JZ-GE with stupid intake manifold
01-22-2014, 10:56 AM
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Direct port on 2JZ-GE with stupid intake manifold Hello,
Just wondering if you guys have any recommendations on doing a DP on this engine. The runners curve down and the closest points to the cylinders are underneath the throttle body. It's a terrible design for something like this. I was thinking of putting the lines here (if I ever do this) but I don't know if they would be too far high. Plus I would have a hard time getting to the oil filter. What a PITA. I'm not going to swap out for the GTE manifold, too much work. Would it be possible just to do a simple 2 nozzle towards the back of the Y where it meets into the manifold?
Realized I might have hood clearance issues this way
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Just wondering if you guys have any recommendations on doing a DP on this engine. The runners curve down and the closest points to the cylinders are underneath the throttle body. It's a terrible design for something like this. I was thinking of putting the lines here (if I ever do this) but I don't know if they would be too far high. Plus I would have a hard time getting to the oil filter. What a PITA. I'm not going to swap out for the GTE manifold, too much work. Would it be possible just to do a simple 2 nozzle towards the back of the Y where it meets into the manifold?
Realized I might have hood clearance issues this way
Last edited by lferrante; 01-22-2014 at 11:03 AM.
01-22-2014, 08:58 PM
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Dream- the 2JZ/Supra/Lexus forums are filled with people scared of N2O. There's hardly any info out there.
Brandon, where would the plate go? Before the TB by the plastic intake part? What's the difference between doing a plate at the TB vs. a nozzle only inches away like I have now? Won't I run into the same possibility of pooling and bad dispersion in the manifold past 150 shot? Do you mean putting a plate where I drew the two pink circles? I don't know if I could shift the TB to the left in that case because of the throttle cable and mounts.
Currently I'm spraying about 140-150 shot with Zex nozzle. I don't know how much higher I could go on the stock internals (or a progressive / 2 stage system)
Brandon, where would the plate go? Before the TB by the plastic intake part? What's the difference between doing a plate at the TB vs. a nozzle only inches away like I have now? Won't I run into the same possibility of pooling and bad dispersion in the manifold past 150 shot? Do you mean putting a plate where I drew the two pink circles? I don't know if I could shift the TB to the left in that case because of the throttle cable and mounts.
Currently I'm spraying about 140-150 shot with Zex nozzle. I don't know how much higher I could go on the stock internals (or a progressive / 2 stage system)
Last edited by lferrante; 01-22-2014 at 09:06 PM.
01-23-2014, 11:37 AM
#6
Have you ever considered going with a forward facing style intake manifold? The OEM 2JZ-GE Intake Manifold is very restrictive and the fact that the intake pipe crosses the exhaust manifold doesn't help.
Here's a pic of a OEM 2JZ-GE Lower Runner fabricated to a custom plenum with a direct port setup.
01-23-2014, 11:46 AM
#7
What about picking up an XS-Power piece which mimics the GTE version at a fraction of the cost of what it would take to convert the GTE OEM intake to your head or buying an off the shelf expensive piece? I had one but never got to use it but the guy that bought it off of me loved it and said it worked well especially for the price. Obviously it wounldnt be as efficient as the more expensive counterparts.
http://xs-power.com/toyota-turbo-manifolds-19.htm
http://xs-power.com/toyota-turbo-manifolds-19.htm
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01-23-2014, 08:07 PM
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Have you ever considered going with a forward facing style intake manifold? The OEM 2JZ-GE Intake Manifold is very restrictive and the fact that the intake pipe crosses the exhaust manifold doesn't help.
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Last edited by lferrante; 01-23-2014 at 08:13 PM.
01-23-2014, 09:11 PM
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interesting, do you have an example picture? I think I know what you mean, it's like a 3-4" long tube in each runner distributed by a block. ?
Last edited by lferrante; 01-23-2014 at 09:17 PM.
01-23-2014, 10:53 PM
#10
The people on my.is didn't bat an eye when I laid out the whole system. I basically got "just run dry" as suggestions.
I don't know how to re-pipe the plastic intake and resonator to reach all the way over to the front facing port. Wouldn't this create issues for the MAF since it's expecting a certain temperature based on the air velocity? I don't know. AFAIK the front facing system is only for turbo equipped cars with the intercooler piping. Wouldn't I have to take out all the duct work in the bumper and somehow recut/reshape it to go on the driver side of the car? What about all the vacuum/ ICV lines? Seems like a ton of work. I quickly googled about this and it's been done, but seems like all turbo conversions.
I don't know how to re-pipe the plastic intake and resonator to reach all the way over to the front facing port. Wouldn't this create issues for the MAF since it's expecting a certain temperature based on the air velocity? I don't know. AFAIK the front facing system is only for turbo equipped cars with the intercooler piping. Wouldn't I have to take out all the duct work in the bumper and somehow recut/reshape it to go on the driver side of the car? What about all the vacuum/ ICV lines? Seems like a ton of work. I quickly googled about this and it's been done, but seems like all turbo conversions.
01-24-2014, 03:44 PM
#13
I disagree with that statement, there's plenty of information on the supraforums about nitrous setups. Majority of the 900+RWHP guys use it to aid in spool up/lag issues on those massive turbos.
Have you ever considered going with a forward facing style intake manifold? The OEM 2JZ-GE Intake Manifold is very restrictive and the fact that the intake pipe crosses the exhaust manifold doesn't help.
Here's a pic of a OEM 2JZ-GE Lower Runner fabricated to a custom plenum with a direct port setup.
Have you ever considered going with a forward facing style intake manifold? The OEM 2JZ-GE Intake Manifold is very restrictive and the fact that the intake pipe crosses the exhaust manifold doesn't help.
Here's a pic of a OEM 2JZ-GE Lower Runner fabricated to a custom plenum with a direct port setup.
-Garrett
