Fully agree with you there. Stock rebuild should get 1mm off immediately
Hello Guest, welcome to the initial stages of our new platform!
You can find some additional information about where we are in the process of migrating the board and setting up our new software here
Thank you for being a part of our community!
Fully agree with you there. Stock rebuild should get 1mm off immediately
For seats, let the machine shop source those.
Haha, yes, it's well over what Volvo recommends removing. Just tell them you aren't expecting them to warranty it and that the Swedes take more than that off the head with regularity, sometimes literally twice that amount off.They said the crack wasn't terminal.
They did not like the idea of 60 thou off of it, at all. I sent them the camshaft specs for the K cam, the springs, valves, and the volvo standard engine service manual/spec pdf.
More info, please? Feel free to update your other thread I splurged a bunch of info in.530 decked 2.6 mm here, Still going strong
One of my machine shops would likely recommend the same things, yes. Robert doesn't like seals on the exhausts. I don't know what Erland thinks, but the two machine shops I normally deal with do all 8 valve seals now, from my experience. The guides are probably worn out, and your machine shop might just feel more comfortable with new seats for whatever reason.They want new guides and (exhaust) seats installed for the 46/38mm valves, is that normal?
They also want a seal on each of the valves, when volvo only puts them on the intakes?
They want new guides and (exhaust) seats installed for the 46/38mm valves, is that normal?
They also want a seal on each of the valves, when volvo only puts them on the intakes?
More info, please? Feel free to update your other thread I splurged a bunch of info in.
One of my machine shops would likely recommend the same things, yes. Robert doesn't like seals on the exhausts. I don't know what Erland thinks, but the two machine shops I normally deal with do all 8 valve seals now, from my experience. The guides are probably worn out, and your machine shop might just feel more comfortable with new seats for whatever reason.
Are they opening up the throats of the ports to make the valves actually worth installing instead of creating a larger restriction, too?
If you have the funds, yes! Sorry for the delay, I had a response started a while back then got too busy to finish it. Before I lost any more time I figured I'd just say YES! Even with stock sized valves there's a restriction to flow. I'll see if I can finish my other post later with a link or two. Or, just search unshrouding valves and read what pops up. Or see my post in another related thread that I might be thinking of... There are three or four threads about NA performance and heads right now.I might ask them to do a little valve de-shrouding too, would that be worth it?
What headgasket are you guys running and what is your SCR youve calculated? Piston deck height? I cant remember if you guys are running less timing than stock, as youre still on the K cam, but that 2.5mm off the head seems like a lot assuming you are running thinner than a stock HG and just the K cam. I know its working well for you, though!
Sounds good. Your combustion chambers are basically stock, right(44.5cc volume after 0.103"/2.6mm off)?We use the Cometic 0.036", on this block the pistons protrude 0.004". Static compression ratio calculates to 10.9:1. Looking at the dynamic, there's room for more. We use a timing curve based on the B23E distributor, and have not fooled with it. We have the pin mod done for the EZ116K, but altering timing with it showed zero result. At first we thought that the chamber design was not conducive to these changes, but in reflection, we're not certain that the mod works under WOT conditions. Curve adjustment will be on the list when we go back to the dyno in the Spring.
I also hope that the header isn't designed for your exact current setup when you have plans to one day take it to a higher level with the additional shave, intake valve and cam. Excited for pictures and specs, though!
You getting that head flowed? It might help with future decision making.