b20 turbo

Baibe73

New Member
New to the integra scene, I have a '90 integra rs with b20z2. It's got awesome power, but feel a bit sluggish after 120km/h. Was wondering if it's safe to turbo the engine for about 5-7 psi just to give it that little bit extra without blowing the motor. I've been hearing different from site to site. Thanks
 

kid_DA

b-series or nothing
B series motors stock can handdle up to six pounds of boost just don't start messing with boost cuz that's what will blow you motor .. Ls motors are storng they have a lower compersion then a vtech motor.. Just get it done right other wise its a waste
 


tilegend

New Member
kid_DA said:
B series motors stock can handdle up to six pounds of boost just don't start messing with boost cuz that's what will blow you motor .. Ls motors are storng they have a lower compersion then a vtech motor.. Just get it done right other wise its a waste
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i dont get it... how did you come up with the conclusion that boost will blow up a motor? but yet stock can handle 6psi? just because someone goes all motor doesnt mean their exempt from anything going wrong...

and because ls motors have lower compression means they are stronger than vtec (spelled correctly) motors???

compression is not a measure of how strong an engine is... consider this also the B18 blocks are all generally the same.... aluminum blocks with cast iron cylinders... 81mm bore... so im not sure where you derive that an LS block is better in strength than vtec motors....

but i agree with your last statement.... any motor can be reliable it just depends on how you build it.

anyways to answer the OPs questions... B20s have thinner cylinder walls compared to B18s and are prone to cracking. people have turbo'd B20s, it also depends on your tune and build.
 
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kid_DA

b-series or nothing
I never said all motors don't have they're set of problems.
Some people that I know have buit a low compreesion (vtec) motors .. And the Ls motors were basicly stock ... sorry if I said anything to upset anyone ..
 

tilegend

New Member
kid_DA said:
I never said all motors don't have they're set of problems.
Some people that I know have buit a low compreesion (vtec) motors .. And the Ls motors were basicly stock ... sorry if I said anything to upset anyone ..
Click to expand...
i was just trying to make a point... every motor is going to have its set of problems regardless... it all boils down to like you said... the build, money, and time. im not upset or anything... but i sure sounded that way so i apologize if i came out a bit harsh...
 


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Ominous G2

┌∩┐(◣_◢)┌∩┐
I wouldnt be worried about 5psi on a stock B20, I would go to ARP headstuds though. I probably wouldn't reccomend this setup, but it has not blown up.

Engine: Stock B20 bottom end, OEM headgasket, ARP headstuds, B16a head, ITR cams, skunk2 IM, stock tb

Mods: FR stage 2 gt kit (gt3076r .63a/r), 3" exhaust, no cat, RC 750cc injectors, walbro 255lph HP pump, 3bar map sensor, turbo xs single stage boost controller, Neptune

Tuning on 93 octane at 10.5psi:
 
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Baibe73

New Member
Thanks everyone for the quick reply. Sounds like alot of work to do on my own. Yes I've also heard about the thin walls of the cyclinders of the b20s. I was hoping to just get a turbo kit and everything would be bolt on and go.
 

mugensix

go sidewayz
its absolutely safe...
just make sure you have it tuned right.
and get a good kit, NOT AN EBAY 1!!!
 
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