Quick stroker question please help

[alqatan]

I tried to search but I don't understand everything very well because English is my second language, as I said in my other posts I have 2 cars which have 4g63 and actually It's time to build the two motors, I have ordered two set of wiseco pistons+ 2 set of eagle connecting rod, I believe the stock compression of the wideco is 8.8:1 with EVO III gaskit should be less because the EVO III uses thicker gaskit, actually I wanna turn the motor to stroker.

I don't know If I understand well but I guess if I install the 4g64 crank on 4g63 block+ross pistons+eagle connecting rod I'll get 2.3 liter is that right?, what other modification should I do, does the compression gonna drop less and if YES what is my compression gonna be because I've heared I should use ross pistons 9:1 compression so when ever the compression drop it won't be that much low!, should I do something to my connecting rod?
If yes what should I do exactly, I do understand the 4g64 block is taller than the 4g63 block by like 6mm is that right?

I'm asking this because I've found 4g64 crank on www.slowboyracing.com and this will only cost me like 350 USD for each crank.

Where can I get 4g64 block?, can I use my wiseco 8.8:1 compression with my 4g64 block and crank and what modification should I do, what about the eagle connecting rod?

I've heared of changing the timing belt of none turbo and also I should use the cam gear of none turbo or I can use after market cam gear which I have on my eclipse and colt, should I change the timing degree?

Please explan as much as you can and don't ask me to search because I tried my best till I learned everything now I need to order the crank if my pistons and connecting rod work!

Thanks for your help, I need a quick answer.

 

[alqatan]

Since no body answered my question I guess I found the write answer.

The 4g63 and 4g64 has the same connecting rod so we don't have to be worried if we get the 2.0 eagle connecting rod or the 2.0 1g connecting rod, but we have to order another custom pistons for stroker kit which can be found on www.slowboyracing.com if we go to over .20 and we use the 4g64 crank on 4g63 block then we will get 2.36 liter as Cragger on slowboyracing.com said.

They also offer 6 bolts 4g64 crank for 350 USD
So if we wanna do our motor stroker we have to get
(1)Eagle or 1g stock connecting rod which work with 2.0 motor
(2)Wiseco 8.8:1 compression pistons which only work with the stroker kit, .20 over so we get the extra .06 liter
(3)4g64 crank and install it on the 1g block

My only question, do I still need to change the timing belt and the cam gears, I guess I don't need that because I'm using the 4g63 block, I would do that if I use the 4g64 block am I right?

Please someone reply before I order that, do I have to do something else?
Thanks

 

[bigfoot]

Looks like you figured it out already. Same block, same belt and gears.

 

[kooka]

if we go to over .20 and we use the 4g64 crank on 4g63 block then we will get 2.36 liter as Cragger on slowboyracing.com said.

going .040 over wouldnt even result in that. .020 would give you something like 2.32. Either way, boring over is not a mod, and gives you no noticable power.

My only question, do I still need to change the timing belt and the cam gears, I guess I don't need that because I'm using the 4g63 block, I would do that if I use the 4g64 block am I right?

You still use 4g63 belt.

 

[Kevin Jewer]

Going 060 over on a 4g63 gives the same bore size as the 4g64, both end up as 2.35 liter motors.

 

[alqatan]

Actually I was going to bore like .60 but don't know if the EVO III still have change for the piston, actually I don't want to get another head gaskit or custom, so if this won't work or would creat heat or the block wall will be weak then I'll stay with .20 inch, please let me know what you think about boring extra and is there anyone had done that, by the way I live in Bahrain, It's has much more heat than US our heat at night is like 100 F

Thanks

 

[kooka]

boring over will not give you any power, i dont understand why everyone thinks this.

 

[Lunch_Box]

boring over will not give you any power, i dont understand why everyone thinks this.

How doesn't it? You are allowing for a bigger size of piston to be put into the block. Please explain so I can fully understand this.

 

[kooka]

It wont give you enough power to notice. Boring is not a performance mod. I'm sick and tired of people saying it is and reading ".040 over" in someones mod list. It's like listing what you have your spark plugs gapped at.

 

[LaserDad91]

boring over will not give you any power, i dont understand why everyone thinks this.

MORE DISPLACEMENT allows you to add more fuel and more air => more power!

I would think then, you would need to change the cams or the cam timing, to allow more air / fuel into the engine, assuming, this is a N.A. engine.

This is why you build the "stroker" in the first place!

 

[kooka]

Stroking a 4g63 has nothing to do with boring it.

But if you're so convinced that going .020 or whatever over will push that much more air and give you that much more power, just do it then.

 

[LaserDad91]

Stroking a 4g63 has nothing to do with boring it.

But if you're so convinced that going .020 or whatever over will push that much more air and give you that much more power, just do it then.

By stroking your incresing the displacement as previous stated. Boring, you are also incresing the displacement. 0.020 overbore, might not add alot, but it will add some, only if you take advantage of it. It may not be a $ per $ best route, but your incorrect in saying you cannot gain power by boring an engine........

Just goes back to the "basics", of what an engine needs to run!

 

[kooka]

you dont understand what im saying. if i had two identical cars in every way possible except one had been bored out you would never be able to tell the difference.

will a .020 motor show like 3hp/tq more on a dyno, maybe, sure, fine, i give in.

 

[espinelli]

When building or rebuilding a motor the machinist will determine how much to bore over depending on the condition of the cylinder walls. Basically, it allows a nice seal for the new rings and pistons. The 'stroker' 2.3L larger displacement is because your running a more aggresive crank. Basically the rods are now able to travel farther. ITS NOT FROM GOING .40 OVERBORING!!!

I would recommend .20 over, that way the next time you rebuild your motor you'll have some room.

 

[kooka]

When building or rebuilding a motor the machinist will determine how much to bore over depending on the condition of the cylinder walls.

I would recommend .20 over, that way the next time you rebuild your motor you'll have some room.

You are contradicting yourself.

 

[espinelli]

You are contradicting yourself.

Yeah, well what I meant was.... just start w/ .20 over. I didn't have very much time to put effort in that reply.

 

[alqatan]

Okay am I going to face problem with boring more than .020 inch?
Actually If I'm not facing I would go for .60 inch.
The problem I have heared that if I bore more the block sleeve will be weak+I might get heat+my EVO III gaskit might not work with .60 inch?

I do understand the stock pistons of 1g or 2g is 85mm, with 4g64 crank and 4g63 block I'm getting 2.3 liter!

Cragger on slowboyracing said with .020 wiseco pistons I'll get 2.36, does this mean for every .020 inch more I'm getting .06 liter more, this mean with .040 inch over my liter will reach 2.42 and with .060 inch my liter will reach 2.46 and I'm looking to increase my liter to get much more power.

Actually I've bored another engine and it was N/A and I felt the power of it don't know if this will happen with the eclipse

Please answer because I'm trying to order today and Cragger got sick of my silly questions

Thanks guys

 

[ITSME4G63]

http://www.carshopinc.com/product_info.php/products_id/59245/CS23KIT

 

[kooka]

Okay am I going to face problem with boring more than .020 inch?

no.

Actually If I'm not facing I would go for .60 inch.

ill assume you mean .06. i must ask, why why why? you will get no noticable performance gains from doing so. its so retarded.

The problem I have heared that if I bore more the block sleeve will be weak+I might get heat+my EVO III gaskit might not work with .60 inch?

.06 is way too much IMO. If I was boring to save a block (imagine someone would bore for that purpose) and the machinist told me I had to go more than .04, id toss the block.

I do understand the stock pistons of 1g or 2g is 85mm, with 4g64 crank and 4g63 block I'm getting 2.3 liter!

Along with stroker pistons, yes, you understand it perfectly.

Cragger on slowboyracing said with .020 wiseco pistons I'll get 2.36, does this mean for every .020 inch more I'm getting .06 liter more, this mean with .040 inch over my liter will reach 2.42 and with .060 inch my liter will reach 2.46 and I'm looking to increase my liter to get much more power.

Either you way misheard or Cragger is an idiot. Did you not read post #4 or #5?

Actually I've bored another engine and it was N/A and I felt the power of it don't know if this will happen with the eclipse

It was in your head.

 

[LaserDad91]

no.


Either you way misheard or Cragger is an idiot. Did you not read post #4 or #5?



It was in your head.

 

[LaserDad91]

Going 060 over on a 4g63 gives the same bore size as the 4g64, both end up as 2.35 liter motors.

What car does the 4g64 come in?

 

[alqatan]

Thanks for your help kooka and Cragger isn't idiot he tried to help me answering my silly questions.

Nice to meet you guys, please answer my other questions
Thanks again!

 

[kooka]

what the hell are you rolling your eyes at?

 

[Kevin Jewer]

.06 is way too much IMO. If I was boring to save a block (imagine someone would bore for that purpose) and the machinist told me I had to go more than .04, id toss the block.

I"m not sure I agree with this. Going 60 over (1.5 mm) brings you out the same bore as the 2.4 (2.35) blocks. Same wall thickness, etc. People are making tons of power on those blocks. I'm at 60 over on the stroked 4g63 and its working very well so far.

Now, I agree that I Would never bore more than the machine work requires. My block was at 40 over when it went to shit, so another 20 brings me to 60. I would have done a better job though of just saying that while a larger bore, even just .020 larger, will add more power, it's not enough power to make it worthwhile or make it worth reducing the number of times you can rebore before its junk.

And for what its worth, both the stock gasket and mitsu metal gasket work with a .060 overbore, which I think was part of question asked by the original poster.

 

[Andy-gst/gsx]

All I got to add is if your dealin with Slowboy.... cover your A$$ and make sure he sends YOU the right pistons.