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hmm $1600 +tax for a new shortblock?
Posted 24 February 2005 - 10:59 AM
Posted 24 February 2005 - 11:13 AM
Posted 24 February 2005 - 11:17 AM
I don't know for sure, but I VERY much doubt that they run leaded gas in Japan. They are stricter about emissions and safety than we are, and their cars typically have a cat converter - both JDM and US - so I think leaded JDM gas is baloney.
i saw that last night, but i'm a little weary of jdm engines.. heard from my subaru mechanic that they run leaded gas over there, which burns the valve seats out of the motors.. dunno how true this is though..
Furthermore, I don't see how leaded gas would burn valve seats - the reason for adding the lead to the gas is to protect them. In fact many old US cars have to have a lead substitute added to the gas so the valves WON'T burn their seats because they are designed for leaded gas and don't have properly hardened valve seats.
Posted 24 February 2005 - 11:22 AM
Posted 24 February 2005 - 11:50 AM
ok, but if the valve seats are designed for leaded gas, and we run unleaded then it would burn the valve seats out after i run it awhile.. assuming they use leaded gas over there..
They don't. They use unleaded, slightly higher octane. Plenty of folks run JDM motors without issues.
Posted 24 February 2005 - 12:14 PM
even if i did do everything they list, if it overheats once from a blown head gasket, they won't honor the warranty cause it overheated, lol.. kinda a waste of warranty beings we all know what these engines do..
I did send CCR and email regarding a short block.. gonna wait for that to come back, then decide wether or not i'm gonna sell my AWD celica to buy a longblock, or miss a couple bills this month and get a shortblock..
Posted 24 February 2005 - 12:19 PM
And the issue with valve seats and leaded-vs-nonleaded gas is almost exclusive to cast iron heads running native metal (as cast) valve sets, as opposed to separate seat inserts. Cast iron seats do not hold up well without lead/lead-substitute. All that is needed for these cast iron heads to handle non-leaded gas well is to replace the seats with hardened seats.
Since all of our Subaru engines are aluminum headed which require seat inserts, and I have not heard of a modern, aluminum-headed engine that didn't use hardened seats, I wouldn't worry about running unleaded.
Also, think about the way Subaru does things. Does it make any sense to design/build an engine differently for their domestic market vs USA, at least in some minor detail such as material of their valve seats?
I have not heard of any of us older-gen types that use JDMs having any trouble with valve seat wear.
Posted 24 February 2005 - 01:49 PM
Posted 24 February 2005 - 02:44 PM
Posted 24 February 2005 - 02:54 PM
Posted 24 February 2005 - 08:24 PM
Posted 24 February 2005 - 08:40 PM
Posted 19 July 2005 - 09:27 AM
Posted 19 July 2005 - 01:12 PM
Posted 19 July 2005 - 01:32 PM
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