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Old 02-09-2010, 04:04 PM   #1
SomeoneWhoIsntMe
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Default About to pull the trigger on custom wisecos - check my numbers

I have an EJ22T shortblock and EJ257 crank and rods, to be used with '02 WRX EJ205 heads. I'm shooting for a ~9:1 compression ratio and a acceptable quench clearance for a long-term street motor. The numbers I gave them on the build sheet are as follows:

bore 98mm
stroke 79mm
rod length 130.5mm
head gasket thickness .040" (cometic EJ22E)
head volume 49.7cc

piston specs:
compression height 31.2mm
dish volume 19cc

I've already ran the numbers myself and everything came out correct, but before spending the money on custom pistons, I just want to make sure they're going to be the right ones.
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Old 02-09-2010, 05:27 PM   #2
SomeoneWhoIsntMe
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I guess this would be a good place to ask about a few other aspects of my build.

My goal is to build a motor which will withstand reasonable power levels (able to take 400whp would be cool, but I'm sure I'll probably only make 300 on the local heartbreaker dyno with a turbo sized for the street), but my main goal is to replace my 140k mile EJ205 with a new block that will last for quite some time.

What bearings should I run in this block? My local supplier is out of phase I ACL race bearings, so I was considering getting ones coated by calico instead. Has anyone had any experience with these? Are there even bearings for our engines other than stock (made by ACL?), cosworth (also made by ACL?) and ACL?

Finally, what's the general consensus on case and head bolts? Since ARP head studs are so expensive, and the case bolt kits are way up there in price, I was considering reusing the stock case bolts in the EJ22T block (bad idea with ~100k miles and 18 years on them?) and getting new OEM head studs. Is there a horsepower or cylinder pressure that I can expect to start lifting the head at, or is it hard to guess if I need the ARP studs or not?
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Old 02-09-2010, 05:57 PM   #3
john 1badSTI
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the calico brgs are great but they are just acl race brgs that calico coats.I would suggest cosworth brgs beacuse the 4b8296h(which are std size)acl rod brgs are on a roughly 2 month backorder from the main place in australia due to the companies reorganization.I would get new case bolts and washers(about 40-50 bucks) and spend the money on arp headstuds just for the added security and ease of mind.Also cosworth brgs are no longer made by acl.
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Old 02-09-2010, 06:44 PM   #4
kellygnsd
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Quote:
Originally Posted by SomeoneWhoIsntMe View Post
I guess this would be a good place to ask about a few other aspects of my build.

My goal is to build a motor which will withstand reasonable power levels (able to take 400whp would be cool, but I'm sure I'll probably only make 300 on the local heartbreaker dyno with a turbo sized for the street), but my main goal is to replace my 140k mile EJ205 with a new block that will last for quite some time.

What bearings should I run in this block? My local supplier is out of phase I ACL race bearings, so I was considering getting ones coated by calico instead. Has anyone had any experience with these? Are there even bearings for our engines other than stock (made by ACL?), cosworth (also made by ACL?) and ACL?

Finally, what's the general consensus on case and head bolts? Since ARP head studs are so expensive, and the case bolt kits are way up there in price, I was considering reusing the stock case bolts in the EJ22T block (bad idea with ~100k miles and 18 years on them?) and getting new OEM head studs. Is there a horsepower or cylinder pressure that I can expect to start lifting the head at, or is it hard to guess if I need the ARP studs or not?
How much are new head bolts from the dealer? Being that it is the dealer I wouldn't expect them to be much cheaper than the ~$110 for ARP head bolts(far from expensive). If you can, go with the ARPs.
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Old 02-09-2010, 09:12 PM   #5
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Quote:
Originally Posted by kellygnsd View Post
How much are new head bolts from the dealer? Being that it is the dealer I wouldn't expect them to be much cheaper than the ~$110 for ARP head bolts(far from expensive). If you can, go with the ARPs.
they are $145 from importimageracing.com for arps
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Old 02-10-2010, 01:32 PM   #6
SomeoneWhoIsntMe
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I had no idea the ARP's were that cheap, I guess I wasn't looking at the right places for them. I suppose ARP's and new OE case bolts it is, then.

Are the non-race series ACL bearings still good?
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Old 02-10-2010, 06:13 PM   #7
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Quote:
Originally Posted by SomeoneWhoIsntMe View Post
I had no idea the ARP's were that cheap, I guess I wasn't looking at the right places for them. I suppose ARP's and new OE case bolts it is, then.

Are the non-race series ACL bearings still good?

they are what i am going to run in my build, $100 too. the ARP's i quoted u on are the head bolts the case bolts from them are $345 if I recall correctly. IMR has about the lowerest price on everything, JSCSpeed has them beat on a few but their selection is worse.
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Old 02-10-2010, 07:07 PM   #8
SomeoneWhoIsntMe
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Quote:
Originally Posted by greenspeed View Post
they are what i am going to run in my build, $100 too. the ARP's i quoted u on are the head bolts the case bolts from them are $345 if I recall correctly. IMR has about the lowerest price on everything, JSCSpeed has them beat on a few but their selection is worse.
A local guy, Nick Reid of Reid Performance in Grand Rapids is really hooking it up with the prices on all the parts I'm getting for my build.

From the calculator I used, the quench on this motor will be .036", and the CR will be right around 9:1. I sent the money for the pistons today, so I guess we'll just see how that all turns out.
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