Back when I worked at COMP Cams I made all the introductions for them but I think they're going another route on that deal. I'm having my stock ones reground at COMP.I saw the post on the drop date and loved it. Glad this engine is getting some attention. I saw them mention cams. I’d love some clarity on that
Overhead cams are weird compared to a fixed ratio overhead valve rocker arm. The rocker arms on overhead cams are not as static in their impact to the valve events as overhead valve engines. What he's saying here is that we never put my K24Z7 on the measuring machine before I left COMP Cams, so they don't know if the rockers behave any differently/feature a different ratio from the K20A, for example. He can tell me what the duration/lift at the valve would be if the geometry were the same as the K20, but he just doesn't know the K24Z7 head, so he's giving me the best numbers he can with the information at his disposal.This is really interesting, from what I gather it looks like using the k20 head geometry makes valve motion more sensitive from the change in cam size due to the centerline as compared to other k cams?
Me too. Y'all have been great with me so far, but I have seriously encountered so much crap from the peanut gallery on Facebook etc about cams etc. I cited my old job etc, but it's hilarious how once 4Piston says something about cams everyone suddenly is a believer. Give me a break. You see this crap all over the internet in different enthusiast cliques, but wow, the Honda guys have definitely got their ideas about whose word on this means something and whose doesn't. The amount of ignorance I've heard from the peanut gallery is just insane regarding this topic.I am excited to see the progress from the k24z7 having its differences set out compared the other k engines as I feel this motor’s little changes and being misunderstood is probably the biggest crutch we face in terms of part compatibility.
Wow. Great vid.I don't really have anything all that interesting to add, but I was watching a YT LiveStream with VTEC Academy the other night, and they had Luke from 4Piston on. I asked him if there was any value in porting the R40 head. His answer was interesting, if anyone wants to watch -
Yea man, when i priced it out....... it is expensive, almost the cost of a rebuilt block. I'm curious to see how all this turns out.Me too. Y'all have been great with me so far, but I have seriously encountered so much crap from the peanut gallery on Facebook etc about cams etc. I cited my old job etc, but it's hilarious how once 4Piston says something about cams everyone suddenly is a believer. Give me a break. You see this crap all over the internet in different enthusiast cliques, but wow, the Honda guys have definitely got their ideas about whose word on this means something and whose doesn't. The amount of ignorance I've heard from the peanut gallery is just insane regarding this topic.
HOWEVER! I have to give kudos to everyone on the thread for being super cool and providing a place to give this some thought. Honestly car forums are so much better than Instagram, Facebook Groups, you name it. And this is why.
Mobs decide who wins the information wars on engine tech, not a panel of experts, lol.
I just paid for the balance of my head. Seriously guys - you have to appreciate how ridiculously expensive this whole thing has been for what this is. Honestly the amount of money to have this head ported and valves/valvetrain installed is insane. I get that its OHC, but yikes... Not sure if I said it before, but just check out what it costs to have a pair of Edelbrock Pontiac heads ported by Butler Performance, the best in the business - $695 plus the valve job plus springs, locks, retainers and seals. The spring kit - a good one, like top of the line for a hydraulic roller/solid roller would be like $450 ish dollars. This valvetrain from 4Piston was like $700. The valves were $260. All-In, I'd say this is a solid $2,000 project plus the cost of the core on ebay.
I mean, I didn't get into this to make the most power for money, obviously, I just thought it was interesting. But now that I'm looking at the cost all-in - it's crazy. I'm lucky I have my camshaft hook-up because guess what - cams, as in billet core cams, are gonna be probably $1,000 for these. Realistically, they should sell austempered ductile iron core camshafts (the black ones), but I doubt that happens here. Who knows! Just know that getting austempered ductile iron cores is a year + out timeline, and the minimum order for cores is in the hundreds if not thousands. I know from my previous job.
Anyway, I should have this in my possession come the beginning of next week, so more pics will follow. The "griping" about the price wasn't "complaining", just standing back and saying wow - this, compared to the OHV American V8's, even the weird stuff like my Pontiac 400, is expensive.
Yeah of course! I really don't even mind that much honestly. I knew going in what I was setting myself up for, but with this car, at this period in time, I'm more interested in the "let's see what happens" than the "let's go really fast with an easy to do kit" kinda thing. My other car is my full-out car, but this one is just kind of an odd duck that I enjoy for different reasons than just going fast.Yea man, when i priced it out....... it is expensive, almost the cost of a rebuilt block. I'm curious to see how all this turns out.