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  #1  
Old 05-06-2008, 06:05 PM
tubbstcg tubbstcg is offline
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question about our engine

Well I was just wondering if you could use the 2.2 liter hybrid weisco pistons on the svx with 2.5 liter length rods or am i totally out there. A forum i used to frequent said this set up would work but you guys seem a little more inteligent then the other forum . So im just looking for a cheap way to bore and stroke while lowering the compression ratio of our engine if thats not too much to ask.

http://www.wiseco.com/Catalogs/Sport...ruToyotaVW.pdf
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  #2  
Old 05-10-2008, 09:58 AM
tubbstcg tubbstcg is offline
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I guess i need to word my question better first off:

1 will ej25 rods fit the svx crank?

2 whats the block height of the svx?

3 are the bores the same between the ej22 and the svx engine?

That about sums it up any info would be appreciated.

Last edited by tubbstcg; 05-10-2008 at 10:03 AM.
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  #3  
Old 05-10-2008, 10:28 AM
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I can't answer your questions, but I can tell you i'll be ordering the EJ22T Wiseco's in acouple weeks. Along with Eagles H-Beam rods.

I've got a set of stock EJ22T pistons and conrods and can get ahold of a Wiseco piston and Eagle conrod (a friend with a Bugeye is building his motor) I can get you measurements off them. I cant get you measurements for an SVX piston and conrod because I havent tore my motor down yet.




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Old 05-10-2008, 11:33 AM
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Ecutune sell forged pistons and rods that will fit.
http://www.ecutune.com/svx_engine.htm
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  #5  
Old 05-10-2008, 11:48 AM
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Quote:
Originally Posted by AFBeefcake View Post
Ecutune sell forged pistons and rods that will fit.
http://www.ecutune.com/svx_engine.htm
ECUtune's rods are the Eagle H-beams.

They also plan to stop selling the engine components seperatly soon.

I'm just looking to get nice built internals (for a decent price) and open more doors for us.




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  #6  
Old 05-10-2008, 12:10 PM
tubbstcg tubbstcg is offline
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I know ecutune has internals but the reason y im trying to get the wiseco are that they will stroke/bore the engine i think.
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Old 05-10-2008, 12:17 PM
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Quote:
Originally Posted by tubbstcg View Post
I know ecutune has internals but the reason y im trying to get the wiseco are that they will stroke/bore the engine i think.
I think for that you're gonna have to look more at a custom crank.
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  #8  
Old 05-10-2008, 01:02 PM
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The stroke and bore are identical to an EJ22. Now the differences are in the pistons and the heads. The EG33 pistons have a raised portion which increases the CR above a 2.2. We (meaning a couple of us on the board) crunched the #'s and did measurements. There is a reason LAN contracted CP to make the pistons for our engines instead of using the much cheaper alternative of 2.2l pistons. Even the 9.5:1 2.2l pistons would drop an EG33 down to 8.0:1 CR which is too low for what most people want to do. The Eagle H-beam rods can be ordered through Eagle, just make sure you ask them to give you a weight matched set of 6. The crank and piston pin bores as well as rod length are identical to the 2.5 and 2.2l's

Tom
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  #9  
Old 05-10-2008, 05:27 PM
tubbstcg tubbstcg is offline
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well what im trying to do is to drop the compression ratio down to 8.5 and stroke it out as much as possible
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Old 05-10-2008, 05:35 PM
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"well what im trying to do is to drop the compression ratio down to 8.5 and stroke it out as much as possible"

Quote:
Originally Posted by odepaj View Post
I think for that you're gonna have to look more at a custom crank.
As Dustin said, if you want to stroke it then you need a crank too.
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  #11  
Old 05-10-2008, 05:37 PM
tubbstcg tubbstcg is offline
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why will i need a crank tom said the differences were the heads and pistons???
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  #12  
Old 05-10-2008, 05:50 PM
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Quote:
Originally Posted by tubbstcg View Post
why will i need a crank tom said the differences were the heads and pistons???
You can't change the stroke of a motor unless you change the stroke of the crank. So you need to have a stock crank welded and ground to make this happen. $$$
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  #13  
Old 05-10-2008, 05:59 PM
tubbstcg tubbstcg is offline
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well if what i am talking about is not the stroke then i mean the swept volume sry i know what im trying to get at i just dont have much experience... still a noob
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  #14  
Old 05-10-2008, 06:08 PM
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He is still right. Your swept volume will change slightly with a bigger bore but w/o a stoker, not much will change

Tom
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  #15  
Old 05-10-2008, 06:12 PM
tubbstcg tubbstcg is offline
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oh well the ej22 scene just uses the longer ej25 rods in oreder to obtain a .15 increase in liters? im not expecting huge gains just a little more displacement
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