Diamonte engine swap

[moorepowercoati]

Can the Diamonte intake be made to work on our 3.0. Was going to start looking for a used engine for cams, but if I could use the 10.0-1 shortblock and cams, what about the intake.

[DustyR/T]

Think about it. If you can use the shortblock and cams, the manifold bolts to the heads. You know the exhaust is going to need fabrication because instead of the 2bolt design, it uses the 3 bolt triangle pattern per port. I think the biggest problem is using our electronics on it. MAP sensor is easy. I think, but am not sure you will need to use your injectors. Will the mitsu's bracketry (alt., A/C, Power Steer, and whatnot) have provisions for the chrysler's, I'm not sure. I think you can use your mounts, and I think you'll need your timing cover or to modify it for the side engine mount if they use a different design. The mistu uses MAF, but if you're using chrysler electronics, don't even grab that sensor. That's all I can think of off the top of my head. Good luck.

[DustyR/T]

Oh, Distributor. Does the mitsu use DIS? If so, the electronics won't work.

[Ondonti]

the distributor cap is different, but you can swap it.

Of course dude didnt say if he was using a 12 valve motor.

[crazyace]

It sounds as though you are talking about the SOHC so that is what I will focus on. Your first big hurdle is that you have to adapt the oil filter mounting. That Mitsu block puts the oil filter right where the Passenger side axle should be. It has no provision for our oil filter adapter so that won't work either. You could swap the guts over to a Mopar version block with new bearings and rings but you have to find one that still has the stock bore and nice tight tolerances. The intake of course does swap on, though you should do a bit of customizing to make it fit right. The 3.0 is a great engine, just requires some unique ideas to achieve what one wants.

[moorepowercoati]

I was refering to sohc. I have seen a couple of low mile engines, 75k, so I thought it would be simpler to use the stock shortblock rework the heads and use the mitsu cams, and if possible the intake. Between the 10.0-1 pistons, cams and intake with reworked heads, it should perk it up. I really don't want to spend the bucks on aftermarket pistons at this point. I plan on building some shorty headers this winter to go along with the 2 1/4 exhaust, sans kitty.

[crazyace]

Well, like I said. Good luck using that Mitsu block. That will be the large challenge.

[Ondonti]

Swapping parts over to the chrysler block is probably going to be a lot cheaper then trying to make the mitsu work.

[Reaper1]

"The Beast" uses a Mitsu block. The oil filter problem is handled with an oil cooler/remote oil filter set-up. The dipstick is on the "rear" of the engine though. I don't think that would work with a stock manifold. I'll know more when I go to do the timing belt ect.

I've decided to wait to put the new fuel line in the car until I take the upper intake off the engine when I replace the injector rail. It'll give me more room to work.

Anyways...

[crazyace]

Hey Chris, how much clearance is there between that adapter and the axle shaft? I have wondered that part for some time now.

[Reaper1]

I gotta look at it, but IIRC it isn't too bad... I'll take a picuture and post it up.

[Tim_K]

Using a 2-1/4" exhaust is a waste of time and money. Go with at LEAST 2-1/2" pipe.

[Shadow24V]

i am in the process of putting in a 2000 eclipse GT motor due to killing my old motor (still dont know what happened.... :-/ ) if your not going to go turbo right away, stick with the stock 2.25" (read a number of threads on club3g.com about this, backpressure=good ) also, look for a 2000+ eclipse GT or GTS, the v6 is oriented the same way as the chrysler engine so you dont have to relocate the oil filter. the eclipses run a dizzy but it is OBDII compliant so the only way to manipulate the timing is via a SA-ECU because the dizzy is not moveable. beware that with the diamante or eclipse engine you WILL have to do some custom exhaust work. the chrysler manifolds wont work, the head porting and bolt patterns are different: this is one reason i bought headers . FWIW, the diamante ran 10:1 CR and so does the eclipse GTS, the GT however runs 9:1. this can cause problems with boosting and detonation, ive seen the GT/GTS/galant/diamante engines break the ring lands off due to detonation. with the higher CR and semi-crappy pistons, you have to be very careful otherwise you WILL be rebuilding that engine lol. i am going with the MSII v3 to get the most out of the engine (full 12x12 A/F, spark and VE tables times 2), along with a CAI (until i get the $$$ for a turbo setup :-D ) and headers

here are some pics of my engines ill see about getting some better ones soon

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[Ondonti]

I dont agree with "theory" when it comes to the exhaust. Real life experience!


last I checked 24v sohc 3g's are slow. my "too big" 3" exhaust sure helps rape them at the track.
Last I checked 12valve chryslers are faster with 2.5" or bigger exhausts..then ANY n/a 3G.

[Ondonti]

Sorry, those headers wont fit in a shadow.

We have this thing called a K frame.