JDM CTR pistons will yeild roughly 12.5:1, depending on head, block deck height, gasket thickness, etc… For the HP/price ratio, these do better job than say Arias, JE, SRP, Weisco, etc…
Pick them up in an 81.2mm size, and have your block bored to 81.2mm.
If you don’t want to spend too much $$, stay with stock rods. They are fine for NA applications. Just get ARP rod bolts. If not, go with Eagle rods, or Crower.
I’d stay away from reving to 8K unless you get new crankshaft bearings, rod bearings, and balance the rotating assembly. (Or toss in a B17 crank.) LS blocks aren’t too happy at 8k due to rod/stroke ratio. Rev to ~7K.
cp pistons, and crower econo rods with arp bolts. don’t put arp bolt in oem rods. trust me it doesn’t work well. you could get oemb18 or the 2 listed above then just mill/ deck to you prefered compression.
He said he was going NA B18 and that he was on a budget, so why would he splurge for forged internals, especially when they are not needed. If you want to be bulletproof and have a fat wallet, by all means, but stock LS rods are plenty reliable on a NA B18 with ARP bolts and the large end of the rod resized.
ill show you a set on my magnaflux, also think that cp pistons are a good price around 450 with rings and pins, and about the same for the rods, think like me:
new oem pistons with rings and pins(200)
arp bolts 100
the machining to rebuild the rods and bush them and balance them $280
mag the rods$40
so its 640 vs. 900 not a big diff to me but it is his call
ls rods will hold up
the prob with arp is the have a tendecy to crack the rod
i do want that high of compression, b/c on this engine, specially since its out and sittin up (and my thread for selling it keeps getting kicked off) i want to go all motor on this engine and the engine thats in the car now im going turbo. but ima need to upgrade my rods also if im going that high of a compression is that right?
Thanks for the tip… yes, I am on a budget…so I’m not too sure about spending money on a forged stuff…however, I was told rods are the weakest link in any motor so I was thinking of purchasing a crower rod or something similar to it. and keep my pistons stock. will this be a better choice?
Hey guys, I came across a good del on both pistons and rods…let me know if this is good for my B18A non-vtec all N/A setup:
SRM forged rods and P73 Type R pistons with rings and wrist pins.
Will this work on my motor? will I be able to rev somewhat close to 8000rpm now? I’m not too familiar with this Honda motor so I need suggestions. If these parts are good parts, I can get them for $400.00 from my friend.