b20s are great engines. Its a myth that the sleeves are thinner than other B series. In fact they are actually thicker, but due to the design they have hot spots on the cylinders and "could" become knock prone.

Ive boosted a lot of cars, busted many of sleeves and have fixed or been with others who have busted their sleeves as well. No B series is safe from detonation or cracked sleeves.

If you keep your goals reasonable and your setup tuned PROPERLY. Their is no reason why the engine shouldn't last Thousands of Miles on 300whp and under. Sleeves crack because of detonation. If your motor is not tuned right, or if you run too much boost you will detonate and crack your sleeves. It has nothing to do with how powerful your motor is, how much psi you are running, or your compression. You could make 400 horsepower in a b20 and if you never detonated, you would be fine.....


B20s get a bad rap but really they are a great motor and make more torque than a type r motor stock....

 

ok

 

well said, jdms1eeper
i have tuned stock b20 vtec superchargers to 285whp with 10 psi and with forged enternals on stock sleeves with crowler turbo cams and gt35r turbo 412 whp at 12 psi but i have seen from shops like inlinepro have made 600 whp on stock sleeves and the motors have been together for years and the recent write up in honda tuning with the b16 making 510 hp on stock everything other than pistons

 

Ok, there are a lot of idiots willing to give you advice so be careful who you listen to.

If someone tells you dont go over X amount of boost or you cant make more than X amount of power on your setup whether it be stock or built then be weary of their advice. Dont have any numbers in your mind just get the fuel you need and get someone who is reputable to tune for you and just tell them to make as much as they can safely. I bet if you go to someone who knows what they are doing you will come away with more than you expected and it will last as long as you take care of it.

Yes I have been running a bone stock B20 for 4-5 years ( i lost count) daily driven and ran low 12s high 11s the entire time. Im currently in the process of adding more fuel and a larger turbo to make more power but still on the stock b20.

Also use the search function and you will see that i have posted in, or i am mentioned in about 99.9% of the B20 threads.

 

Well said, if you want it to last then make sure you have a good tuner who is known to have positive rep. and make sure you maintain everything without cutting corners.

 

ok thanks

 

Im lovin this post YAY for a fresh B20B that settles it I'm definitely going to boost mine this winter and have it tuned to shit for right around 300 whp for a fast reliable daily. thanks p.s.- i have the higher compression B20B should i at least change the pistons .. ect. i want a reliable boosted B20B, but from what i read here i should be fine with stock internals with the moderate amount of boost i want..?

 

nice and clean b20

 

like dave said its all about the tune ive seen 16 17 lbs and ive seen some on a shitty tune blow up at 13 lbs lol

 

where would you guys suggest for the manassas/ northern VA area to have it tuned ? I'll install myself but ill have a P75 or Pr4 chipped on Neptune ready for tune i was thinking Inline pro or P tuning ... but I've heard some bad things about P tuning ... ? any suggestions.