i don't know how your doing it but you doing a pretty good job. are you just improvising or are you looking at another setup on someone elses. well when its done don't forget to post everything on here.

 

i have only seen one in Person, the guy from T.O. (Mario) and his RA Turbo, but it wasn't quite the way i wanted to do it, so i'm provised a little. I'm gonna make the down pipe out 3" stainless with a 90 deg. bend,then attach the rest of the exhaust to it.

 

I have a quick question, My friend (who has a 2g eclipse) can get me some 1g pistons real soon, but he said he'll have to do a bit more searching for 2g pistons. Will the 1g pistons work?

 

Do some research, but i don`t think it will fit.

 

ok i finnaly got the info everyone was lokking for here are the specs my friend in Toronto sent me via e-mail from his RALLIART turbo:

E-Mail:

Hi Kev,

I bought my forged pistons and rod from dyno-flo performance down in the states. The Piston is made by Arias whereas the rod is made by Eagle, you have to buy the one with the bore 0.20” with 8.7:1 compression ratio. It is called Eagle H Beam 4340 Rods and Arias Low Silicate Pistons for Mitsubishi 4G63B second Gen – non turbo.

It will cost you around US$750 + shipping for the 4 pistons and the rods.



I hope this would help.



Cheers,

Mario

 

couldnt ask for much more of an answer than that! great work. u get a gold star =)

however, they never made a gen2 eclipse /w a 4g63 nonturbo. i assume its the turbo one =)
(however, they did make a 2.4L 4g64 non turbo. is that what u ment? kinda an important point).

if i is the 4g63TURBO, here are the rods: http://www.makeitfast.com/product_in...38cfd3b904b80f

and here are the pistons: http://store.summitracing.com/defaul...2.asp&N=400242

can you verify?

 

Yeah thoes are the ones you need, i can't wait to start modding the block........man i can alomost taste it

 

How are you gonna use pistons that are meant for a block that's taller than the 4G69? The pistons will protrude from the block. The 4G69 uses the same style rods and crank as the 4G63/4G64. However, they are just lightened versions. Here's an article that discusses the various "improvements" Mitsubishi made to the 4G64 engine to call it a 4G69. Very good read.

Article

 

Don't think that the 4g63t and 4g64 used the same crank as they have different strokes? 88 mm - 100 mm.

The 4g69 block is 6mm shorter than the 4g64 block - A rod from a shorter stroked 4g63 would work in a 4g69, as long as the are the same length there shouldn't be any problems. (the 4g63t block is 6mm shorter than the 4g64 too)

The pistons and their pin location is really important, as was previously stated.

 

I am well aware that the 4G64/4G69 and 4G63 have different stroke lengths. The rods in the 4G64/4G69/4G63 are all the same length. I didn't know the block height of the 4G63 was 6mm shorter than the 4G64. I knew it was shorter, but didn't know the exact number. You would not be able to use 4G64 pistons because of the pin location. The only pistons I can see using are 0.080" over pistons from a 4G63 engine. This would turn 85mm pistons to 87mm. Wiseco makes them that large overbore.

 

lets bring this thread back from the dead seeing as how i just discovered it and it is extremely interesting. some things that i noticed were wrong was that someone stated that there wasn't a n/t 4g63 engine when in fact there is. now for people not going turbo, there should be an easy way to get a company to make a higher compression piston. i would say call wiseco and instead of getting them to make a 8.8:1 compression, tell them you want it to be 10:1 or 11:1 or whatever you want.

another thing is that you would think that a stock 1g/2g/evo turbo manifold would bolt onto our head. i'm not sure if this has be tried or not, but it should work. if it wouldn't, and you really wanted to make big power out of this engine, then you could bolt a 4g63 head onto our engine and use wiseco 8.8:1 pistons and eagle rods to boost the hell out of it!!! from the info. given the head should be a direct bolt on as it was on the 4g64!!!! plus this engine is lighter, so i see big power that is attainable from this engine!

comments welcome!

 

first off let me say NO you can't bolt on just any head, the 4G69 engine is different than any other of the past engines, and second they don't make drop in pistons for the Ralliart (as of yet) so that means you need to go 30 over and a lower compresssion for a turbo engine, ex: 8:5:1 rating is ideal, the stock ralliart compression as we all know 9:5:1 wich is slightly too high for big boost power.

The other solution is like you said getting higher compression pistions for the engine,although no one as of yet has made them, due to lack of demand. So maybe in the future some company will come out with someting for the Ralliart

 

I'm curious, ModernRacer. Hows the turbo treatin ya?

 

i'll let you know in the spring when in install it, i still have a couple more parts to get, but should be interesting to see on the Dyno once it's all done.

 

Higher compression pistons...that would mean advancing the timing? How many degrees would be involved for that?