Finally bit the bullet....
03-24-06, 04:14 AM
#16
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Got my factory GTE headgasket last night, as well as the ARP studs and EGR blockoff plates. Engine should be here next thursday. My hope is to start unbolting furiously on Friday and spend saturday swapping accessories over and putting the new engine together with my stock parts. Wondering if I need to do something about the heads...hmm...
Who here would take the extra week or two and the extra money to get the heads cleaned up before re-assembly. My hope and my thought was to just put the head straight on the new block, but I'm thinking more and more this might be a bad idea....
~Tim
Who here would take the extra week or two and the extra money to get the heads cleaned up before re-assembly. My hope and my thought was to just put the head straight on the new block, but I'm thinking more and more this might be a bad idea....
~Tim
03-24-06, 07:36 AM
#17
Originally Posted by Timdog1650
Got my factory GTE headgasket last night, as well as the ARP studs and EGR blockoff plates. Engine should be here next thursday. My hope is to start unbolting furiously on Friday and spend saturday swapping accessories over and putting the new engine together with my stock parts. Wondering if I need to do something about the heads...hmm...
Who here would take the extra week or two and the extra money to get the heads cleaned up before re-assembly. My hope and my thought was to just put the head straight on the new block, but I'm thinking more and more this might be a bad idea....
~Tim
Who here would take the extra week or two and the extra money to get the heads cleaned up before re-assembly. My hope and my thought was to just put the head straight on the new block, but I'm thinking more and more this might be a bad idea....
~Tim
Looks like a great project...Good luck. The ARP Head studs, do you have the specifications? I am curious how similar they may be to stock Lexus Head bolts on the 1UZFE. Also, might I ask what you paid for them?
Thanks,
Ryan
03-24-06, 08:47 AM
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Paid about 150 including shipping from Boost Logic. They're beefy dude, they're the same as 2jzGTE headstuds. I'll take a look at the packaging and look for specs.
~Tim
~Tim
03-24-06, 10:12 AM
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The specs from ARP say 63ft-lbs if you use their lube will get you 14,310 psi of tensile strength from these puppies. They say if you use 30wt motor oil to tighten them to 80ft-lbs since you'll be less slippery. Personally, I'm thinking 80ft-lbs even with the moly lube...that's what all the supra guys recommend, and with headstuds a little bit more really can't hurt.
~Tim
~Tim
03-24-06, 11:21 AM
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Just to clarify things a bit, the TT pistons also have a different casting on the underside of them that have journals cast in so that oil (from the oil squirters) gets pumped through the piston for better cooling (aka, no more melted pistons or pistons that expand too much from the extra heat).
03-25-06, 07:29 AM
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Now Im not 100% sure exactly about the GTE oil squirters but I do know that in high HP Honda motors using Vtec blocks we block off the oil squiters. For 2 reasons, to keep oil pressure up and stable at high rpm and HP ranges. and also because once the oil hits the pistons it then falls back on the crank. You spend alot of effort using windage trays and such to keep oil off the crank from the bottom then turn around and dump it on it from the top? I learned this along time ago from the guy at JG in Cali. It has served us well over the years... Now again I don't know exactly how it is set up in the toyotas.
03-25-06, 09:40 AM
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I've personally gone through several b18s with oil squirters and have never taken them out. I have seen a few honda applications where boost + no oil squirters lead to the piston overheating, expanding too much and then eating the sidewall. Golden Eagle also sells a block off kit for the hondas though....although I seriously believe its more about trying to "do something different" rather then "do something better".
03-26-06, 09:18 PM
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I say do what you know to work, and for me thats what works. Time and time again. I have never heard of no oils squirters leading to "problems" but Im sure somewhere there is a guy who swears that thats what happened.. Pistons overheating sounds funny to me... 