Replacement engine - rebuild questions?
Posted: Wed Sep 16, 2009 12:18 am
So, I want to have a "hot spare" sitting in the garage now that I have gotten the car basically under control and running like I want. I don't want to spend a TON of money building a motor from the ground-up, I'm not racing the darn thing. But, knowing very little about engine machining/building in general, I am at a loss as to what to do with the parts I currently have.
Let's assume for sake of simplicity that I can take care of the tuning/engine management side of things for now, and just focus on the hardware.
Here's what I have sitting around:
1) EJ20G probably from a Legacy, it had a VF-8 that came with it, and it was attached to an automatic tranny. Block, heads, intake manifold are all there and still assembled. I took the injectors off for my Stage 2 upgrade.
2) EJ22T block with a separated crankshaft. This was the motor in the car when I bought it, I removed the heads with the intention of splitting the block and having it checked, I have not gotten there yet,
3) EJ22T motor from the wrecking yard. 150k miles. The car took a frontal/oblique impact in dirt, pushed the frame corner into the front of the motor by the oil fill. The head is clearly cracked at the front cam seal, but I am optimistic about the state of the block.
So, I basically need to verify the integrity of the 22T blocks. What I don't know is if I need to take them both all the way apart or not.
Then, what sort of machine work should I expect to have done? What would essentially take a used block to the point where it's ready to go 200k mi again?
Head-wise, from what everyone says the stock heads are limited, even if you spend money on cams, P&P, etc. I could use the 20G heads I have and find a 25D intake I suppose. What should I look at doing to the 20G heads if I want similar longevity to a rebuild block? What if I want to improve the redline? Or, should I find some USDM DOHC heads for cheap somewhere instead?
Again, the goals would be: cost-effective improvements that are easy to do while everything is apart, higher redline, 100k mile+ longevity.
What Would Matt Monson Do?
Let's assume for sake of simplicity that I can take care of the tuning/engine management side of things for now, and just focus on the hardware.
Here's what I have sitting around:
1) EJ20G probably from a Legacy, it had a VF-8 that came with it, and it was attached to an automatic tranny. Block, heads, intake manifold are all there and still assembled. I took the injectors off for my Stage 2 upgrade.
2) EJ22T block with a separated crankshaft. This was the motor in the car when I bought it, I removed the heads with the intention of splitting the block and having it checked, I have not gotten there yet,
3) EJ22T motor from the wrecking yard. 150k miles. The car took a frontal/oblique impact in dirt, pushed the frame corner into the front of the motor by the oil fill. The head is clearly cracked at the front cam seal, but I am optimistic about the state of the block.
So, I basically need to verify the integrity of the 22T blocks. What I don't know is if I need to take them both all the way apart or not.
Then, what sort of machine work should I expect to have done? What would essentially take a used block to the point where it's ready to go 200k mi again?
Head-wise, from what everyone says the stock heads are limited, even if you spend money on cams, P&P, etc. I could use the 20G heads I have and find a 25D intake I suppose. What should I look at doing to the 20G heads if I want similar longevity to a rebuild block? What if I want to improve the redline? Or, should I find some USDM DOHC heads for cheap somewhere instead?
Again, the goals would be: cost-effective improvements that are easy to do while everything is apart, higher redline, 100k mile+ longevity.
What Would Matt Monson Do?