I'm looking for numbers, not statements of "not very strong." I want to know how strong is the bottom end in a b18a/b and a b18c1? How much hp and tq can these bottom ends take if I just work the heads?

 

well every engine is different, and its ALL in the tune. b18a1/b1's i've seen in the 250-300 range and appear to be pretty stable, gsr's from what i've seen seem to handle a little bit more. check out the almost 800 page turbo ls thread, and get an idea for yourself what you think would be reliable...

https://honda-tech.com/forums/forced-induction-16/lst-ls-t-turbo-b18a-b18b-setups-1323059/

 

nvm...

 

they are as strong as 10 Jay Cutlers

 

On day 3 of his wife's menstrual cycle.

 

Thanks for the thread, don't know who Jay Cutlers is sorry. I'll look him up.

 

I sense gross amounts of sarcasm in this thread....

 

Have you forgotten where you are?! This is HT All-Motor Forum, Man! It's just how we roll!!

If you're asking from an ALL MOTOR aspect.....stock bottom ends are as strong as you'll ever need them to be (power-wise).

Considering people only get ~230 WHP out of a B20VTEC...and that's the biggest you can get for an all motor stock bottom end....boosted guys are making 300+ on stock bottom ends. The "strength" of the bottom end is NOT going to be a limitation.

If that doesn't answer your question.....IDK how to answer it. If it didn't, you're in the wrong forum.

 

There is definitely none!

 

i have a better question. with a fully built head, how high of a rev can stock block handle? i'm thinking the rod bolts would go out first.

 

Probably is the 1st weak link.

Aftermarket Rods use ARP fasteners to add security.

I really don't know where the threshold is on different bolts.

Just realize that RPM = Ruins People's Motors

 

C Rock I think you did a pretty good job at answering the question, though I'm referring to it being boosted, I should've stated that from the beginning so my thread wouldn't be moved to the All-Motor forum but whatever.

See I'm rebuilding my cousin's sedan for him and I'm trying to keep the price of everything as low as possible while still making sure I get quality parts where I really need them. I wanted the numbers as a reference point so I know where I don't want to get too close to power wise. I do plan on reconditioning the entire block and utilizing ARP Head & Rod bolts. I plan on having the head ported and polished with a complete valvetrain upgrade. Anyway thank you very much everyone for your input.