So I know the danger # for most honda motors is around 8-10psi. I am in the process if installing a greddy 18g turbo on my b16 and will be running the stock wastegate setting which I think is like 7-8psi. Unlikealot ofpeople that boost hondas I am not concerned with pulling every last ounce of power out of my motor without it exploding. I would rather over build and run a very safe psi # just so I know Im not going to be pushing the crap out of my motor. So my question is, what would I have to do to my internals to very safely run 12-15psi on the 18g?I know very little about engine building so try and stay basic with me. I have spent all my time learing about turbos and not a whole lot about how to build a motor for boost, so I figure I should probably start learning something. would I be good with justsome forged rods, 9.0cr pistons, headstuds, and a new headgasket? I would be very happy if Icould get even close to the 300whp mark with these mods.Let me know what I should be paying for all these engine parts also. Thanks in advance.

 

Look over Remmy's Build by clicking here

 

that is a very good build^^

 

You can realistically make 300whp on a stock B16, they're short stroke and hefty rods make them a good candidate for a high powered stock engine.

However, if you want to build it, Eagle rods and some type of forged piston wouldn't be a bad idea. Warning though, block building gets expensive FAST.

 

for pistons and rods you are looking between 7-900 bucks depending on the brand you get. i would say to go for wiesco or crp pistons and eagle rods.

 

Thanks for the help guys. Remmys build looks friggin sweet! I wish I had $5K+ to throw around lol. So I can just put in some good solid rods and pistons and be able to safely turn up the boost a little? what compression pistons should I go with 9.0:1 or could I go with something a little higher like 9.8:1? Thanks again for the help.

 

You almost got it. Cp.

And redsi, I've seen no evidence favoring a higher compression over a lower as of yet. 9:1 seems to be the standard though, and seems to work well.

 

The meter is almost at 7k. However, I went with 8.5 compression. Basically, by the time I have to worry about the motor again, it will be on its fourth owner.

 

Now doesnt a lower comp piston hurt your power in the low range before you hit boost as apposed to a slightly hight cr giving you a little more grunt in the low range but not as strong for high boost applications? I might be wrong so someone set me straight. And what is the stock cr for ab16a2 piston?

 

I'll never know why this guy never turned up the boost on both set ups, but here is as close to a 9:1 and 10:1 comparison as you can get at the same boost levels. http://www.evans-tuning.com/comp2.html

As you can see, there is not much pre boost difference.