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Finally decided to do a 3500 conversion to my camaro after a looong hiatus. In a rwd conversion are the piston squirters in the proper place? The cooling circuit is different with the fwd water pump but the rear pistons should still be hottest, yes? Has anyone done oil squirters on all pistons? How much drilling & other bs is needed to tap the oil galley? Is it even worth while?
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Increasingly I find the difference between a "fact" and an opinion is the number of people who believe it.
3.4 block converted to roller valvetrain with 220/225 cam on 115 lsa, '769' heads with 3500 valves, LS6 springs & porting, twin T04E turbos, 3500 plenum with ported 3400 lower & 'short star' 65mm throttle. -
I've installed oil squiters on all pistons, I've also run an LX9 with only the rear squirters. It's not that they would be in the correct or incorrect pistons, they'll help regardless.
The middle squirter is pretty easy to add, and drop right in what would be the stock location, comparing to an LZ4/LZ9, however the front squiter takes far more precision to add. There isn't enough meat to add it in what would be the stock location, and where mine ended up actually interfered with the piston skirt and needed some clearancing. It also required some minor reshaping of the tubes and placing the bolt directly under one of the tubes, with a 6mm bolt that had a 10mm hex, that was then modified to have a 9mm hex, that was offset to also clear the piston skirt. The bolt location could likely be moved to get around the need for the modifued bolt head, but this wasn't found until after the hole was already drilled and tapped.
I'll attach pictures of the test drilling on a junk block and the final result in the engine that is currently in the car
Missed the oil galley on the front location. This would be the same relative location where it would be in the LZ9, which I used for reference.
Final front squirter install. I tried a different approach with turning the squiter and bending the arms a lot, but it didn't work out well at all.
Clearanced piston:
All 3 installed:
I think if I was considering this again, I'd likely do the front squiter very differently, like not using the GM squiter, but making or using something that taps into an oil galley elsewhere, or just go LZx, since they come with squiters on all 6 pistons anyway. -
Hmm, may not be worth the effort when I can bead blast & ceramic coat the pistons at home. Good info for anyone that decides to pick this up. Blindly stabbing at the oil galley is my issue.Increasingly I find the difference between a "fact" and an opinion is the number of people who believe it.
3.4 block converted to roller valvetrain with 220/225 cam on 115 lsa, '769' heads with 3500 valves, LS6 springs & porting, twin T04E turbos, 3500 plenum with ported 3400 lower & 'short star' 65mm throttle.Comment
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I was thinking of plugging the oil squirter actually, for use with twin turbos. But as long as the oil pump is up to snuff it shouldn't matter either way...Increasingly I find the difference between a "fact" and an opinion is the number of people who believe it.
3.4 block converted to roller valvetrain with 220/225 cam on 115 lsa, '769' heads with 3500 valves, LS6 springs & porting, twin T04E turbos, 3500 plenum with ported 3400 lower & 'short star' 65mm throttle.Comment
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Id keep the squirters if going turbo. Lz swap has them on all 6 and forged Pistons are cheap as ls1 Pistons fitComment
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My engine is turbo and have not had any oil pressure issues, with the additional squiters and stock LX9 oil pump.Originally posted by 85maro View PostComment
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