Forged pistons
15 December 2006, 08:46 PM
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Forged pistons
Hi there,
I'm currently purchasing parts for the rebuild of the engine in MY95 STi RA and i'm after some advice on pistons and also trying to find out what make of forged pistons people use on here.
As well as which brand people use does anyone have any thoughts on CR etc. that they'd like to share? Brand wise i've heard that there has been one or two problems with JE's
I've already bought some Arrow rods and gotten myself a set of commetic gaskets. I need to sort out pistons and possibly a crank depending upon condition. Anyone got any GEN on the v9 crank or will a straight replacement for my v2 be ok?
P.S i'm chasing 400-425 bhp ish
I'm currently purchasing parts for the rebuild of the engine in MY95 STi RA and i'm after some advice on pistons and also trying to find out what make of forged pistons people use on here.
As well as which brand people use does anyone have any thoughts on CR etc. that they'd like to share? Brand wise i've heard that there has been one or two problems with JE's
I've already bought some Arrow rods and gotten myself a set of commetic gaskets. I need to sort out pistons and possibly a crank depending upon condition. Anyone got any GEN on the v9 crank or will a straight replacement for my v2 be ok?
P.S i'm chasing 400-425 bhp ish
15 December 2006, 08:54 PM
#2
Have a look at the Wiseco piston range Mongo - quality stuff and a reasonable price if you make a few phone calls( API,Lateral Perfermance etc).
As for the V9 crank - its a rear thrust crank and pretty sure your V2 would be a Center Thrust crank.
As for the V9 crank - its a rear thrust crank and pretty sure your V2 would be a Center Thrust crank.
15 December 2006, 08:57 PM
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Cheers mate. I knew about the thrust washer/bearing and I know of a motorsport company who will do the engineering work on the block for 45+vat.
As I understand wiseco are part of JE group.
As I understand wiseco are part of JE group.
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15 December 2006, 09:21 PM
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How can you buy gaskets, before you have bought the pistons, when you don't know what the CR will be ?
Wiseco, & JE are owned by the same company, but they are very much independent of each other, when it comes to product.
I've not heard of any issues with JE, but I do know that Wiseco have been more than proven, being used in two of the 9 second Subaru's in the Uk.
The STi9 crank is cross drilled, and heat treated. It's not that much more than a standard crank, so if you can get the block machined, it's worth the little extra.
Mark.
Wiseco, & JE are owned by the same company, but they are very much independent of each other, when it comes to product.
I've not heard of any issues with JE, but I do know that Wiseco have been more than proven, being used in two of the 9 second Subaru's in the Uk.
The STi9 crank is cross drilled, and heat treated. It's not that much more than a standard crank, so if you can get the block machined, it's worth the little extra.
Mark.
15 December 2006, 09:26 PM
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Gaskets are sandard thickness, CR will be altered by piston bowl or combustion chamber size. Having a thicker head gasket will affect squish?
Mark
Mark
Last edited by Mongo; 15 December 2006 at 09:37 PM.
15 December 2006, 09:43 PM
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I wouldn't suggest going thicker, but depending on the CR you want, you may even fit a thinner gasket, with a lower compression height piston.
You really want to buy something that's "available" rather than having a custom piston made.
Personally, I wouldn't want to rely on removing material from the combustion chambers.
Mark.
You really want to buy something that's "available" rather than having a custom piston made.
Personally, I wouldn't want to rely on removing material from the combustion chambers.
Mark.
16 December 2006, 03:45 PM
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A friend of mine sent these pictures recently. They are wisecos and eagle con rods He told me that everything was right before this happens. I think it mainly an installment issue but I'm not a specialist so not sure.
and the guy looking for darton sleeves in the 2nd picture =) not a good idea
and the guy looking for darton sleeves in the 2nd picture =) not a good idea
16 December 2006, 04:23 PM
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Originally Posted by SoNiCa
A friend of mine sent these pictures recently. They are wisecos and eagle con rods He told me that everything was right before this happens. I think it mainly an installment issue but I'm not a specialist so not sure.
16 December 2006, 04:26 PM
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Originally Posted by Lateral Performance
I wouldn't suggest going thicker, but depending on the CR you want, you may even fit a thinner gasket, with a lower compression height piston.
You really want to buy something that's "available" rather than having a custom piston made.
Personally, I wouldn't want to rely on removing material from the combustion chambers.
Mark.
You really want to buy something that's "available" rather than having a custom piston made.
Personally, I wouldn't want to rely on removing material from the combustion chambers.
Mark.
Are you a wiseco dealer btw? I might give you a ring for a chat.
Mark
16 December 2006, 06:19 PM
#16
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Originally Posted by SoNiCa
A friend of mine sent these pictures recently. They are wisecos and eagle con rods He told me that everything was right before this happens. I think it mainly an installment issue but I'm not a specialist so not sure.
and the guy looking for darton sleeves in the 2nd picture =) not a good idea
and the guy looking for darton sleeves in the 2nd picture =) not a good idea
certainly doesn't look loke a general material failure
16 December 2006, 06:48 PM
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hi mate, your best bet is purchasing from the USA, the exchange rate at the moment is awsome and the prices there just cant be beat anyone in the UK ... I paid less than £400 for a set of eagle rods and arias pistons!!!
I know alot of rally cars that are using these pistons with no problems
I know alot of rally cars that are using these pistons with no problems
Last edited by WRXshaneWRX; 16 December 2006 at 07:06 PM.
16 December 2006, 11:20 PM
#19
I am using Wiseco pistons and Eagle Rods,
No problems with mine and currently running approx 360 bhp.
Although I didnt source mine from Mark at Lateral I can vouch for the Wisecos and I know he's one of the best suppliers in the UK of wiseco scooby pistons.
He's your man!
Daz
No problems with mine and currently running approx 360 bhp.
Although I didnt source mine from Mark at Lateral I can vouch for the Wisecos and I know he's one of the best suppliers in the UK of wiseco scooby pistons.
He's your man!
Daz
17 December 2006, 10:33 AM
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Originally Posted by Lateral Performance
Mark,
Yes I carry a range of Wiseco pistons, and you're welcome to call for a chat.
Mark.
Yes I carry a range of Wiseco pistons, and you're welcome to call for a chat.
Mark.
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