Alchem1st

iTrader: (2)

Well guys a few of you who have watched my build know that I bought an Evo 4 half cut for my Mirage conversion and the engine ended up being heavily crankwalked. (somewhat expected, but hoped against ) Well of course the whole bottom end is done, so I decided that for cheap replacement blocks (and just because), I'd plan an engine build with the 4G64 block as the base. Here's what I know, I don't have a whole ton of budget remaining for this build, and I definitely want to use the 4G64 block. I know what has to be done to the 4G64 to make it work in my car as far as the water pump bracket and longer t-belt with adjustable cam gears etc. I also am planning to buy Manley 156mm rods. The block will have a 100mm crankshaft in it and I also have access to 7bolt 4G63 88mm crankshafts. I can use the 156mm rods with either (stock) crankshaft to build a 2.1 destroke or a 2.4 "stroker". I've thought about it for a long time and in the end, I just can't decide between the two and so I thought I would let it come down to piston cost. This is something I'm not super familiar with. So basically, I'm looking for reasons to go with one option or the other and also looking to see what I would have to spend as far as pistons for each option. Also, I should add that I will be retaining the stock turbine for a good while and I'm not looking for the most powerful car ever, just something to help my driving skills evolve further. (and ultimately just get the car on the road with this engine) The car will be my DD and will see alot of spirited driving with a lapping day at Putnam Park every once in awhile. Let the comments rip!


Also, if you just want to check out the build, the link is in my sig.

RockmanX

iTrader: (78)

u answered it yourself boss spirited driving and road coursing 2.4 wins that battle everytime. there no reason not ot for a DD with some race time. if your going to drag then 2.1 but that was never mentioned 2.4 i drive mine everyday and the way it spins the black is stupid rediculous

adam_79_2005

iTrader: (16)

i stayed with the 2.0 even though my car is not a track car/drag car, she sees only weekend driving and i trully wish i had gone 2.4 liter long rod with the medium sized fp-black turbo, it would have been a monster torque/minimual lag demon. To me the goal with our 4bangers is to find a decent medium where there is minimum lag plus torque, old saying is true, no replacement for displacement. sure a 2.0, 0r a 2.1 could probably rev past 9k but a long rod 2.4 could lets say only rev to 8k or maybe 8200 rpms, the low end torque yo'd gain would far outway the ability to rev past 9k. Unless you don't care about a monster turbo with monster lag. I say go 2.4

S13 Curtis

iTrader: (5)

You can rev to 9k with a built LR 2.4 with supporting mods .

n2oiroc

iTrader: (33)

Every few months the safe rev limit of 2.3's and 2.4's increase a couple hundred rpm. By spring people will be saying 10k will be fine at the current rate.

SmurfZilla

iTrader: (33)

LOL. If you have a good 2.0 then it seems the 2.3RR from BR is a good choice.

If you have a ventilated 2.0 block then I would just go 2.4 instead of 2.1 You can rev the 2,4 safely to 8500 (esp. if you go long rod) and have a little more displacement.

Alchem1st

iTrader: (2)

My 2.0L bottom end is done for, no saving it. The crankshaft ate rings into the journals and it looks like there was never a thrust bearing there on one side! So 2.4 huh?
Well show me some piston options! Who makes them? Who do I avoid? What should I expect to pay? How about the wrist pins? I saw magnus makes 2.4 pistons, but they're
like $750 for the set and that seems pretty high considering the Manley rods are only $330 shipped; but I dunno, maybe not.

BenJ

iTrader: (21)

A properly setup 2.0L can rev much higher than 9k, just so that people understand. My 2.0LR can rev past 10k no problem at all. Above 9k you have to start worrying about oil issues though so look into that.

Paul Walkin

iTrader: (6)

There's no point in a 156mm 2.1

The proper way is to use a 162mm rod so you can utilize a lighter piston.

Either way you slice it, if you're looking for a motor to rev source a 4G63 block

If you have a 4G64 block, build a 2.4LR

Alchem1st

iTrader: (2)

Yeah, I guess 2.4LR is the way to go then. What would be the least expensive piston without sacrificing quality? I'm willing to pay more for a better set, but I'd prefer to keep the cost down around $500 or lower for a set if possible. I'll check club3G and see what those guys are using I guess.

RockmanX

iTrader: (78)

lol maney ibeam rods are 764 lol dont cheap out on pistons or rods last thing you want to do is rebuild the motor or not being able to push the motor very far because of cheap parts

1d10t

iTrader: (19)

I agree with everyone here. 2.4
Call around abt pricing. Forum members won't help much Here. I recommend Wiseco pistons

Alchem1st

iTrader: (2)

^^I heard that 156mm Manley H-beams were alright and they're only $330 shipped. Heck my block and crank are only gonna cost me $120 from the pull yard. I'm not looking for the best out there, even if it's equal to stock I'm ok with it. I'm not looking to build a race engine just yet, I just want to get the car on the street for now. I'm trying to keep the total cost with machine work around 2k or so. I'll do a full build after I finish my AWD conversion.


^Yeah, I think a 2.4's what I'll go with. A couple of people I've talked to said go with Wiseco. I'll give them a ring when I'm ready to buy. Thanks!

wreckless969

iTrader: (11)

Stroker all the way, I have manly turbo tuff rods and je pistons.

TommiM

iTrader: (19)

I would say go 2.4L. Thats the setup Im also building, and my evo is 90% track with some street driving.