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-   -   .080 over 22re (https://www.pirate4x4.com/forum/showthread.php?t=2324633)

BazookaBoy 05-22-2016 04:07 PM

.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

Mr Stubs 05-22-2016 05:03 PM

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.

Provience 05-22-2016 05:15 PM

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?

iwannabemro 05-22-2016 06:59 PM

My crawler 22re short block is a kragen reman from 8 years. It .70 over still runs like a top.

84Toyotakrawler 05-23-2016 10:04 AM

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.

BazookaBoy 05-23-2016 05:01 PM

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?

Mr Stubs 05-23-2016 07:18 PM

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?

rockota 05-23-2016 07:44 PM

Quote:

Originally Posted by BazookaBoy (Post 36897521)
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.

gnob 05-23-2016 08:26 PM

Youre never going to out torque the 3.4 with a 22RE. (PERIOD). :flipoff2:

84Toyotakrawler 05-24-2016 06:57 PM

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

Mr Stubs 05-24-2016 08:51 PM

80 over needs a propane turbo..:D

redneckguy0404 05-25-2016 04:43 AM

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.

Aisin 05-25-2016 04:52 AM

$700 for 4 pistons. I can buy a running driving Lexus LS400 for that much.

NOODLES 05-26-2016 05:34 PM

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.

Mr Stubs 05-26-2016 06:02 PM

Quote:

Originally Posted by Aisin (Post 36918129)
$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.

NOODLES 05-26-2016 06:44 PM

Quote:

Originally Posted by Mr Stubs (Post 36942041)
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.

Provience 05-26-2016 09:34 PM

Quote:

Originally Posted by NOODLES (Post 36941633)
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

Propane 05-27-2016 06:49 AM

.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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