4G93 intake manifold installed
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Mitsiman: are you talking about the 4g92 mivec? because thats what me and airquez were talking about earlier. we kinda figured that the 4g69 manifolds wouldn't bolt because their engines are unrelated.
engineerboy: i think about 1.5". for about the thickness of the flange, the runners are bored perpendicular to the flange. then after that it funnels back to the original runners. i have some pics on the first page (my browser is setup for 100 posts per page). also look for non-ferrous carbide burs. those things just munch on aluminum!
engineerboy: i think about 1.5". for about the thickness of the flange, the runners are bored perpendicular to the flange. then after that it funnels back to the original runners. i have some pics on the first page (my browser is setup for 100 posts per page). also look for non-ferrous carbide burs. those things just munch on aluminum!
Originally Posted by engineerboy
lookslike: have you ported one yet? How much are you porting the throat?
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From: TB, FL
Originally Posted by rhyzin
was looking through diagrams and the evo tb won't do either UNLESS it was the same as ours under the TPS. they use a similar tps as the 2G eclipse; 4 pin harness that only uses 3 wires. this is no biggie as wiring it over is easy. it's about how the tps is mechanically linked to the throttlebody. there's a chance that the iac might swap over as well hoping that they at least updated this piece to be compatible with our wiring harness. if the price is right for one, i might look at this some day.
The only reasons that I think Mitsu changed the IM design . . . to make the motor more conservative, get more MPG, or meet tougher emission standards. Otherwise, I can't think of any logical reason besides just stifling HP gains.
Last edited by bahamut; Mar 5, 2005 at 07:16 AM.
kris- thanks, forgot about the pics on page 1. I didn't think the runners would need anything since they terminate straight, where the 94's runners taper in (read: stupid 
). I'll take another look. And yes, I used the fluted burs for aluminum and then follow up with sanding rolls.
). I'll take another look. And yes, I used the fluted burs for aluminum and then follow up with sanding rolls.
so a few additions to Kris' install notes.
1) he's not high. You really can't just reuse the throttle cable plate, you'll have to make a new one. I've stopped for a few minutes to type this, but that's what I'm finishing when I get done here. The mounting points are a little left of where they are on the G94 mani, so if you try to use them, your throttle is contantly open.
2) not everything matches perfectly. Good news is that all of the stuff that isn't perfectly aligned isn't load-bearing or anything. You'll notice in his pic that the plat that has the bundled of hoses and sensors doesn't match up perfect- the far rght side is a little left of where it is on the 94 manifold. The bracket that "holds" the IM (what, in case of ctastrophic nut/bolt failure this is supposed to help?!) is too short. I'm thinking about removing mine entirely to save that weight. The reason you need the 2 short bolts (see below) is because the bracket that held the IM in the front, and had the engine hoist-point is now gone, it doesn't fit. This is really good news because it was always getting in my way anyway.
3) you don't really need OEM bolts. I went to Lowes and went to the metric bolt section with one of the shorties. I found a nut that fit the OEM bolt, then found a bolt that fit that nut. Just make sure the 2 bolts are approx the same length (the 2 I bought were about 2mm longer, but that's not been a problem, they tighten just fine).
4)The metal tube for the cruise control solenoid is held by one bolt to the top of the IM
5) You'll actually want to get a hose coupler, 2 clamps and really only about 6" of 3/8" vacuum hose. There's a valve inline of that brake booster hose that I think might be important.
That's all for now. I'm gonna make that plate and go for a test drive.
Thanks Kris!!
1) he's not high. You really can't just reuse the throttle cable plate, you'll have to make a new one. I've stopped for a few minutes to type this, but that's what I'm finishing when I get done here. The mounting points are a little left of where they are on the G94 mani, so if you try to use them, your throttle is contantly open.
2) not everything matches perfectly. Good news is that all of the stuff that isn't perfectly aligned isn't load-bearing or anything. You'll notice in his pic that the plat that has the bundled of hoses and sensors doesn't match up perfect- the far rght side is a little left of where it is on the 94 manifold. The bracket that "holds" the IM (what, in case of ctastrophic nut/bolt failure this is supposed to help?!) is too short. I'm thinking about removing mine entirely to save that weight. The reason you need the 2 short bolts (see below) is because the bracket that held the IM in the front, and had the engine hoist-point is now gone, it doesn't fit. This is really good news because it was always getting in my way anyway.
3) you don't really need OEM bolts. I went to Lowes and went to the metric bolt section with one of the shorties. I found a nut that fit the OEM bolt, then found a bolt that fit that nut. Just make sure the 2 bolts are approx the same length (the 2 I bought were about 2mm longer, but that's not been a problem, they tighten just fine).
4)The metal tube for the cruise control solenoid is held by one bolt to the top of the IM
5) You'll actually want to get a hose coupler, 2 clamps and really only about 6" of 3/8" vacuum hose. There's a valve inline of that brake booster hose that I think might be important.
That's all for now. I'm gonna make that plate and go for a test drive.
Thanks Kris!!
wow....that shows love right there...but then again kris was up till like 7AM....
how short of bolts are you talking about( 2short bolts that are needed)
and can you post a pic of the bracket that you are talking about
how short of bolts are you talking about( 2short bolts that are needed)
and can you post a pic of the bracket that you are talking about
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oh yeah, i keep forgetting about posting that bracket pic. i'm gonna make a new one to make things look nicer in the future, but here's what i came up with that morning.
all right kris! we're gonna have another one on board...
all right kris! we're gonna have another one on board...
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when are you going? this weekend?
the pda thing only reads off the narrowband so it kinda sucks in that sense.
EDIT:
me and engineerboy are both kris and we both have the pda scantool.
the pda thing only reads off the narrowband so it kinda sucks in that sense.
EDIT:
me and engineerboy are both kris and we both have the pda scantool.
his bracket looks about like mine- except I used some sheet metal because I'm not going to get the 1/8" angle iron and drill huge holes in it at 12:30AM It's good to have lots of different metals around- I almost made it out of copper sheet, then realized that stuff is ridiculously expensive
For the bolts I'd recommend driving to the store that you're going to try to buy them at and just take one off at the store. The one in the back, on top is easiest to get at. I think we're talking about 1/2" or less difference.
Once I remembered to reinstall that hose that connects to the plate with the sensors and hoses on it (the hose is a long one that has like 3 kinks in it) everything was fine. My injectors are hella loud now, but I could just be hypersensitive to noises that I'm usually accustomed to.
Night everyone.... oh, no test drive tonight. It's too late and I have a sick stepdaughter that I don't want to leave alone while I go joyriding
It's good to have lots of different metals around- I almost made it out of copper sheet, then realized that stuff is ridiculously expensive For the bolts I'd recommend driving to the store that you're going to try to buy them at and just take one off at the store. The one in the back, on top is easiest to get at. I think we're talking about 1/2" or less difference.
Once I remembered to reinstall that hose that connects to the plate with the sensors and hoses on it (the hose is a long one that has like 3 kinks in it) everything was fine. My injectors are hella loud now, but I could just be hypersensitive to noises that I'm usually accustomed to.
Night everyone.... oh, no test drive tonight. It's too late and I have a sick stepdaughter that I don't want to leave alone while I go joyriding
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i don't remember what kind of difference it made. i got it back in '03. i'm a bit spoiled with the setup i have now to give any kind of comment on that old setup. lol...
EDIT: not to mention that the gauge it came with wasn't calibrated and for about a year, i thought i had 44psi base pressure when i had 34psi. but that's all fixed now
by the time i figured out what was going on, i had a different setup than i started with and now i run 54 psi base pressure. i was so young and naive, hehehe.
EDIT: not to mention that the gauge it came with wasn't calibrated and for about a year, i thought i had 44psi base pressure when i had 34psi. but that's all fixed now
by the time i figured out what was going on, i had a different setup than i started with and now i run 54 psi base pressure. i was so young and naive, hehehe.
Last edited by rhyzin; Mar 7, 2005 at 01:57 AM.
