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Old 05-22-2016, 04:07 PM   #1 (permalink)
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.080 over 22re

Has anyone done this? Was it reliable? I'm in need of a rebuild, and want a compression bump. The higher comp pistons can only be had in an .080 over bore.

Thanks
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Old 05-22-2016, 05:03 PM   #2 (permalink)
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I know of one for sure and have looked into it as well.
I do know that you will need to pay attention to the head. We all know that old heads can be problematic due to electrolysis. Be prepared to buy a new head if yours is compromised. That big of a bore pushes tolerances to the max.
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Old 05-22-2016, 05:15 PM   #3 (permalink)
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Worst case scenario you end up finding a thin spot and boring into he water jacket, a sleeve and rebore can fix that no problem and a competent shop should be able to do it for you no problem.

What ratio are you going for?
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Old 05-22-2016, 06:59 PM   #4 (permalink)
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My crawler 22re short block is a kragen reman from 8 years. It .70 over still runs like a top.
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Old 05-23-2016, 10:04 AM   #5 (permalink)
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my motor is .80 over Has roughly 5000 miles on it driving to and from rubicon/fordyce (4 hours each way) always been good to me! If i had to do it over again with all the money it ended up costing me(forged pistons LC Head Arp studs cam, springs etc...) I would swap a 3.4 or something like that in.
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Old 05-23-2016, 05:01 PM   #6 (permalink)
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Was aiming for 9.8:1 ... Or maybe a touch higher... hoping to go as high as 91 octane will allow.

I messaged LC and he said they can custom make pistons for whatever bore/comp I want, but he didnt answer me on the cost.

I need to find out which block i have first though... 5 years ago the engine took a crap and i swapped the block to one a friend had. No idea what it originally came from. Ill have to go look.

So 84krawler you reckon a 3.4 stock motor would outperform the 22re setup you have now?
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Old 05-23-2016, 07:18 PM   #7 (permalink)
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Pistons are going to be in the $600 range.

This is a very important question. Is your engine going to be carbed or EFI? And if it's EFI is it a stock or stand alone ignition?
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Old 05-23-2016, 07:44 PM   #8 (permalink)
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Quote:
Originally Posted by BazookaBoy View Post
Was aiming for 9.8:1 ... Or maybe a touch higher... hoping to go as high as 91 octane will allow.

I messaged LC and he said they can custom make pistons for whatever bore/comp I want, but he didnt answer me on the cost.

I need to find out which block i have first though... 5 years ago the engine took a crap and i swapped the block to one a friend had. No idea what it originally came from. Ill have to go look.

So 84krawler you reckon a 3.4 stock motor would outperform the 22re setup you have now?
No way you'll get 190 hp out of a 22rx w/o spending way more than a 3.4 swap would cost.
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Old 05-23-2016, 08:26 PM   #9 (permalink)
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Youre never going to out torque the 3.4 with a 22RE. (PERIOD).
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Old 05-24-2016, 06:57 PM   #10 (permalink)
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Yea A 3.4 would outperform my 22re for sure. like Stubs said my pistons were expensive I think in the 500 range if i remember right. I have around 3000 in my motor. You can pick up a used 3.4 for under 1000 bucks. I like my motor a lot has great power and has been reliable but If i personally did it again i would swap to another motor maybe even a 3rz
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Old 05-24-2016, 08:51 PM   #11 (permalink)
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80 over needs a propane turbo..
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Old 05-25-2016, 04:43 AM   #12 (permalink)
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I just got my 20/22r back from machine work. 80 over with wiseco K509M94 pistons and should be around 10.6:1. I paid $728 for the pistons, machine shop price. I think summit has them for just over 500. being EFI the high compression may pose some issues for you so may look into propane. that's where im heading at least.
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Old 05-25-2016, 04:52 AM   #13 (permalink)
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$700 for 4 pistons. I can buy a running driving Lexus LS400 for that much.
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Old 05-26-2016, 05:34 PM   #14 (permalink)
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I think rebuild kits start at 60 over anyways correct? So 80 would be only 2 times over. I wouldn't worry about it. But whatever you do, use a new crank. It seems the machined rebuilt ones do not last long.
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Old 05-26-2016, 06:02 PM   #15 (permalink)
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$700 for 4 pistons. I can buy a running driving Lexus LS400 for that much.
But could a guy make that Lexus work with what they have now (drivetrain/running gear) for the difference. Sometimes its cheaper in the long run to use what you have.
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Last edited by Mr Stubs; 05-26-2016 at 06:04 PM.
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Old 05-26-2016, 06:44 PM   #16 (permalink)
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But could a guy make that Lexus work with what they have now (drivetrain/running gear) for the difference. Sometimes its cheaper in the long run to use what you have.
he is obviously drunker than me.
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Old 05-26-2016, 09:34 PM   #17 (permalink)
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I think rebuild kits start at 60 over anyways correct? So 80 would be only 2 times over. I wouldn't worry about it. But whatever you do, use a new crank. It seems the machined rebuilt ones do not last long.
I'm running .040 over (1mm) so I know you can get rebuild parts for less. I wanna say .020 (0.5mm) were available also but my bore wouldn't clean at 20
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Old 05-27-2016, 06:49 AM   #18 (permalink)
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.080 over is 2.6 liters now and it's fine as long as the head is not rotted in any way. You also need a head gasket with the larger bore made into it.
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