Hatorade

So I was looking at the specs of the B18B3 VS the B18B1.

The B18B3 has a redline of 8,000 rpm stock.

• Displacement: 1834cc
• Stroke: 89 mm (3.5 in)
• Rod Length: 137.01 mm (5.394 in)
• Rod/Stroke Ratio: 1.54
• Power:
• Redline: 8000 rpm

Where as the B18B1 has a redline of 7,200 rpm stock.

• Displacement: 1,834 cc (111.9 cu in)
• Compression: 9.2:1
• Bore: 81 mm (3.2 in)
• Stroke: 89 mm (3.5 in)
• Rod Length:5.394in
• Rod/Stroke Ratio: 1.54
• Power: 142 hp (106 kW) @ 6300 rpm & 127 ft·lbf (172 N·m) @ 5200 rpm
• Redline: 6800 rpm

Looking at stroke, rod length and R/S ratio, everything is the same. Does this mean that the B18B1 can rev to 8,000rpm redline as well?


I am asking b/c I am thinking of going Budget LsV and avoiding bottom end work would save a lot of money.

thanks

88Hatchy

wtf is a B18B3?

sohcnotec

wiki says it came in the Honda Ballade 180i/E
seems to be the African version of a Civic???

komat

i reved my complete stock b18b to 8200rpm everyday. it was also turbo with a t3/t4 57trim 10psi. i sat on the rev limiter to get traction. i did it for a year didnt have any problems.

just change the rod bolts to arp and you be golden if you are worried

Scott_Tucker

Mean piston speed at 8000 rpm on an engine with a 3.5" stroke would be 4648 feet per minute which is below the generally accepted maximum of 5000 fpm. Just use good rod bolts and you should be OK.

00Red_SiR

The stock cams used may have been the deciding factor for the different redlines.

Scott_Tucker

I would agree with this. What are the differences in stock static compression ratios? Are the port sizes different in the heads?

Meister vtec

read this thread https://honda-tech.com/forums/showth...4#post39038834

it is obvious wiki has the specs wrong and is not trustworthy as usual!

Hatorade

^^^ ahhh...thanks...that makes sense

For a moment, I thought that IF the bottom end could rev safely to under 8,000 from the factory, it would make LsV a lot easier for a lot of people.

Unfortunately, buying a vtec longblock will still be a cheaper way of going vtec.

thanks!

/thread