CRAracer05
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Hey guys, it's been awhile, but I'm finally getting back to working on the Z. Extensive rust under both of the quarter windows. Started patching the drivers side last night.
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I just bought a set of Webers last week so I'll I see if still have this in a month or so.
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I found this out afterwards. I was asking for a quote on just having the chambers welded, and was told I could only get this service in a complete SPL head. I seriously have considered trying it myself as I have two N42 heads. I was going to practice on some old engine cases and such first. Ultimately I have decided now to either just run the N42 or wait for a good deal on an P90 to come up that I can shave.
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A well-known vendor quoted me this.
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I think may try to source a P90 head and possibly even try to work a trade deal up with someone. A P90 head shaved .080" with .080" cam tower shims and a set N42 valves seems to be the best performance for the money.
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I was quoted 11k for the Kameari / SPL head.
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Looking to trade an N42 cylinder head for a P90 cylinder. N42 came off car that ran before it went into storage 15+ years ago. I really just need the head and the cam mounts, possibly rockers if they are in good shape as I be will getting a new cam, springs and valves anyway.
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I have noticed the same kind of results as well.
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I have two full N42 motors, so i didn't want to source another head. I was just blown away at some of the prices I got, one company wanted $6,000 to weld and and resurface and that didn't include doing the valve job or anything else. I had considered trading someone a N42 head for a P90 head at one point. I just wasn't sure what compression ratio I would be at with a shaved P90 and flat top pistons.I was looking at shaving .080" to get back to 10:1 compression ratio.
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It seems like a common thing to do to improve airflow and reduce detonation. The process is described in Frank Honsowetz book, also the Kameari SPL head has welded chambers. I seen it discussed on the forums multiple time as well. I just have never seen anyone say were they have had the work done. I also listed all of my engine specifications so i could get input on whether it would benefit my setup or not. I was mainly looking to improve the burn in the head to reduce the risk of detonation and hopefully pick up a few extra horsepower at the same time from the more efficient burn. If i could decrease my chance of detonation, then I would be able to run more timing and take advantage of the higher compression from the N42 flat top combination. Currently I am relying on the cam to reduce my dynamic compression to avoid detonation, and also the re-curved distributor to take full advantage of the triple Webers.
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I saw the same this morning when I searched, there are also tons of rod and piston options available.
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Really no one? I know a few guys on here know something about this, but apparently no one wants to share. With the prices I was getting quoted I could buy another S30 in really nice condition.
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I agree, just stick with a proven setup such as the LD28 stroke length and test the actual durability of the Chinese parts. The main goal here would be a cost effective stroker setup. If you want an all-out max performance stroker kit go with Kameari or call Rebello up and get their custom Brian Crower unit they designed.
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They also have 240z length rods required for stroker setups. https://scandes.en.alibaba.com/product/60217973532-800431158/For_NISSAN_3_1L_L24_L24E_L26_L28_LD28_STROKER_H_BEAM_ROD_5_236_A_SET_6PCS.html And custom pistons available: https://scandes.en.alibaba.com/product/60320062448-801319111/Custom_Pistons_for_Nissan_L28_12010_08010_12010_C6421_Piston.html Should have them price 10 setups of LD28 cranks, with 240z length rods, and custom pistons to make a complete stroker kit.
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I say we get them to agree on a super good price and do a group sale on the forums.
