How much Power can a Stock Internal D15B2 Handle?

[flip888]

I have a turbocharged 1990 Honda Civic and I was wondering If there are any people who have reached 200whp on a stock internal D15B2. My engine blew from high mileage and possibly a poor tune but that wasn't even at 150whp.
Ive searched but i cant seem to find any info on this subject for some reason. Everyone with a turbo either has a built motor or a swap it seems. Ill be swapping for a b16 in the future but for now I can only use the stock D15B2 and I don't want to spend money on building it.
Thanks.

[Nick Gautreau]

how much boost you running and what was you starting hp? (before turbo)

[FrodoGT]

That little b2 will probably hold 200 with a good tune, with a good tune! I would shoot for 160 or less, psi doesnt matter. Also, how many miles are on it? thats a big one, if its over 120k or so I wouldnt push more than 145-150. And it better be mpfi.

[Nick Gautreau]

Originally Posted by FrodoGT

...with a good tune, with a good tune!

LOL!!^^

Originally Posted by FrodoGT

I would shoot for 160 or less, psi doesnt matter.

Correction. Psi DOES matter. If the motor is stock, you shouldn't run more than 10 - 15psi. Running more than 15psi will SERIOUSLY increase the chance of blowing your motor.

[FrodoGT]

Im sorry, but your wrong. Can I get some backup on this?

Nevermind, got it. http://www.turbod16.com/viewtopic.php?f=7&t=35848

[Christ]

yes, after having done months of research on boosting and D series engines, I, too, figured out that the AMOUNT of boost applied means nothing against the amount of HP being created. it's the overall cylinder pressure that blows your engine.

The basic idea is that, while you COULD blow your engine up by adding too much boost, no single turbo would ever create enough pressure to blow any part of the engine... fundamental basics of turbochargers won't allow it, since the drive force has to be proportionate to the boost applied, which creates a feedback loop...

That's enough lesson for today tho, basically, Frodo was right.

Oh, and a fully built (openly available marketed parts) D-series will only hold about 260BHP... the hardest built one I've ever seen was around 400 BHP, boosted, and blew up after 2 runs down the 1/4.. (about 3 mins of overall run time, not counting warm-up.)

[FrodoGT]

Take a look on turbod16.com There are SEVERAL 400 and 450+ turbo d's, and the general consensus is: pistons and rods, head studs and block guard/sleeve/block fill and cams. That will get most people up to 300+

[Christ]

I have this stuff that's like liquid aluminum compound that i use to make my own block brace, instead of just putting one in, like most do... there is a thing tho, that you don't really need to girdle the sleeves, you can just add some studs threaded through the block in a few places, and it will hold just as well, I can't remember where I saw it tho.

Personally, I'll stick w/ my aluminum compound.

[FrodoGT]

Its called block posting, where you drill through the block and thread in a type of bolt that touches and supports the sleeves. I would rather fill mine too, I hear great things about devcon, but there are other products as well. Some are specially meant just for that like moroso block filler, but alot of people say it sucks and its just crappy concrete.

[Christ]

yeah, the moroso stuff is almost like brick mortar... pry not exactly the same thing, but close enough that you could use it for brick mortar (and I'd rather use it for that) if you had to.

PC-7 epoxy is a very expensive alternative, if you want something really strong, but if I can find it, I'll tell ya the name of the stuff I have.. it's literally liquid epoxy w/ aluminum in it... kinda like Bar's Leaks, which I stand by as a good alternative to brazing your radiator for a quick fix... that or an egg.

[FrodoGT]

Sorry for jacking the thread, but I suppose this stuff still applies.

http://www.devcon.com/techinfo/108.pdf

[Christ]

The data sheet suggests that it's good stuff, but I'm not sure if that's what I have... if I need more of it, I'll definitely look into that tho.