[b1gkishan]

The diamanté is like the eclipse lower

 

[b1gkishan]

What about the XG lower intake manifold? How much difference is there between the DOHC and SOHC port size? I know the XG uses a composite fuel rails allowing the fuel to remain cooler than a metal one but I know the XG rails can use only the newer style Bosch fuel injectors.

Fuel isn't in there to be affected by temperature of the rail.

 

[chucknasty01eclipse]

6g74 and 6g75 lowers are interchangeable, 6g72 is only interchangeable with 6g73. 74 and 75 are known as big blocks in the mitsu v6 family since they are taller deck blocks than the 72 and 73.

however i am not 100% on the hyundai since it has dohc heads but more than likely it's just like the other 6g74. the nonmivec 75 might be the solution i just need more time to research it all again.

 

[b1gkishan]

Ours is just fine all it needs is a port job.

 

[Guest]

he isn't talking about how they flow, he is talking about how they interchange with other vehicle parts.

 

[chucknasty01eclipse]

Ours is just fine all it needs is a port job.

i agree the 6g75 upper is great. the only one that MAY be better is the gutted xg350 since you can port the crap out of it and it has a massive plenum with a large throttle body area and no angled piece sticking out. but getting it to work on the mivec isn't going to be easy since the mivec lower spaces the ports out more so they don't line up so neither do the bolt holes.

the question asked was pertaining to a manifold that could fit a larger throttle body so i provided one that is much cheaper than rpw but will require work. bolting on a diamante upper would result in the exact same issues since they share bolt patterns and ports spacing BUT the diamante is more restrictive than the xg350 and stock upper for you guys. it would result in lots of low end torque from choking the engine and end with a good deal less power in the top end.

 

[Guest]

hmm, so the xg upper will fit on the g74 lower without a problem.
so we get the g74 lower, mixed with the xg upper, and the evo x tb, followed by a 45* or 90* intake or intake adapter, and then a fat ass intake. and blickidy blame the whole shit comes falling down. I mean powaing up. :bigthumb:

 

[Guest]

Ours is just fine all it needs is a port job.

pretty much the reason for the xg upper is so we can accompany it with the evo x tb.

 

[TwilsonD7]

I reaslly don't want to read all this...has anyone found out if an evo throttle will fit, any year? We can only go as big as out intake manifold...any larger is pointless

 

[TwilsonD7]

There isn't going to be a hudge advantage to this...you guys are greeting into changing intake manifold and all that stuff and isn't isn't worth it...our intake manifold has the map sensor, throttle body, egr, egr sensor, the hose from the intake man to the valve cover, the hose going from the intake man to the sensor on the air filter...way too much shit to switch intake man and nowhere near cost effective to custom make on.

If this hasn't been done yet, there has to be people with evo buddies that can take twenty minutes to take the throttle off, if not just go on eBay and find cheap throttle gaskets...

 

[Guest]

We are trying it first, I am the ginny pig in all this upper intake mani.

 

[Guest]

The only problem with the EVO X is that It's as big as our plenum intake. So we would have difficulties getting it to go on correctly. And there would be restrictions. Trying the xg intake plenum will allow a larger tb where ours won't be able to without creating restrictions that are already present, but we are trying to get rid of the restrictions.

 

[b1gkishan]

We are using an aftermarket evo X TB....the stock evo x is the same size as our gt one the only difference is the housing for coolant passage. Thats why you need to port our intake plenum as much as possible. lol but I'm confused now so experiment away and let us know what happens!!!

 

[Guest]

Ok, well the xg opening without any boring done is at 69mm without boring. You will be able to bore about a extra 3mm maybe 4-5 don't know yet, but that is what I will be finding out.

 

[jhun35]

There isn't going to be a hudge advantage to this...you guys are greeting into changing intake manifold and all that stuff and isn't isn't worth it...our intake manifold has the map sensor, throttle body, egr, egr sensor, the hose from the intake man to the valve cover, the hose going from the intake man to the sensor on the air filter...way too much shit to switch intake man and nowhere near cost effective to custom make on.

If this hasn't been done yet, there has to be people with evo buddies that can take twenty minutes to take the throttle off, if not just go on eBay and find cheap throttle gaskets...

If they can make this work, then there will be a huge advantage to it. A bigger tb, and bigger intake manifold will allow for greater air flow, for more powerful NA builds, and even more powerful turbo/supercharger builds. Tho internals will still need to be upgraded to handle the amount of boost to make this worth while, but it opens up possibilities for the 6g75 ten fold.

And man, we are modding fwd boats, that barely benefit from any mods that are done, nothing we do is cost effective, except maybe nitrous :naughty:

 

[b1gkishan]

Why not just cut off the TB housing and buy an aftermarket one and get it welded on? You can get one from jegs.

 

[jhun35]

that's a pretty good idea man

 

[Guest]

Ya, but could be more costly getting the aluminum cut and then rewelded on, just trying to find somebody who welds aluminum. But if that could be sourced for fairly cheap then that could be another way to get the bigger tb. Do they have our bolt configuration on the website?

 

[b1gkishan]

Any machine tool shop generally welds aluminum. Or find a industrial welding business. You can cut it yourself or get a machine or body shop to plasma cut it.

 

[Guest]

Ya, that would be another way to go, if this other way I try doesn't create increase in numbers.