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  1. MattHDSM

    Is balance shaft delete worth it?

    I did read this document, thought it was very interesting. I did end up deleting my balance shafts, but still have factory bore/stroke. I ended up getting a fluidampr in the hopes that any harmonics that those balance shafts were helping with, that the fluidampr could potentially pick up some of...
  2. MattHDSM

    Are these welds factory? (4G63 head)

    Mine is a April '96 build date for a '97 Talon. I don't recall seeing any weld spots in my head when I had it off. Unfortunately, I have no pictures to back that up.
  3. MattHDSM

    Less oil pressure after turbo feed swap

    If you're not restricting the oil feed off of the OFH, you may be 'relieving' oil pressure through the turbo and your gauge would reflect that. If you still have oil pressure and it increases with rpm, your bearings are probably fine. BUT if you've been thrashing on the motor without out enough...
  4. MattHDSM

    85.5mm Headgasket

    My block is .020 overbore (85.5mm) and I'm using a felpro composite headgasket. No issues with fitment for me, but I honestly don't know if a bore matched gasket would matter at that power level. It wouldn't be too wild to think that with crazy high cylinder pressures or when using o-rings, that...
  5. MattHDSM

    Rebuild Issues...Advice??

    I have to agree with this. Before I rebuilt my engine, the biggest job I’d ever done was brakes. It’s intimidating, especially after putting a bunch of money forward but damn was I ever proud of myself on first start up. There’s plenty of resources out there to guide you along, Jafro’s videos...
  6. MattHDSM

    2G 7-Bolt Engine Rebuild, Looking For Opinions/Experience/Knowledge

    ANOTHER UPDATE! It's alive!.. for now. I've only put 100kms on it so far, but all seems good for the time being.I deleted the balance shafts, kept the oil squirters, and opened up the head oil port to relieve some of the pressure from the balance shafts being deleted. At operating temps my...
  7. MattHDSM

    2G 7-Bolt Engine Rebuild, Looking For Opinions/Experience/Knowledge

    UPDATE! I went with the .20 overbore NPR's and finally with some nice weather up in the frozen wasteland of Canada, I have a fully assembled rotating assembly. Everything is on the looser/wider side of spec which is what I'm looking for. Hopefully, I'll be able to keep working away at it and...
  8. MattHDSM

    2G 7-Bolt Engine Rebuild, Looking For Opinions/Experience/Knowledge

    I’ve got my motor apart, the crank is currently at a machine shop getting spec’d and polished. I figured there’s no point in buying or boring anything until I know the crank is good.In the mean time, a little bit about the motor.7-bolt with 200k km (~124k miles), no fuel upgrades (yet)...
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