I have a question about how much HP a sohc turbo can put out. Right now, I am planning to get a d15b jdm sohc vtec swap but I was wondering can it make about 220+ whp on stock internals? Can the motor handle high psi and that amount of power without doing any internal work?

 

Stock rods are toothpicks. The answer will rely in the health of the engine and the ability of your tuner. I personally think you are asking too much.

 

Yes and no.

That's literally the answer. Some can, some can't. Depends on a lot, especially the tune.

 

so lets say i just go rods and pistons, then maybe?

 

mines bone stock with arp head studs, made 237whp @ 10psi

 

mind if i ask whats your turbo setup?

 

If your going to invest in rods and pistons, why not start with a 1.6 and not the 1.5? The additional displacement may not seem like much, but every bit helps. Easier to find parts for the 1.6 also.

 

well the d15b has more hp. i would go y8, but yeah.

 

-Setup-

-Spoolin Performance Log Manifold
-Spoolin Performance 2.5" Downpipe
-Spoolin Performance Dump Tube
-Turbonetics T3/T4 .48/.42 50trim
-Tial 38mm wastegate
-RFL BOV
-DSM 450cc
-Walbro 255 Fuel pump
-Ebay intercooler and piping
-Go-Autoworks pro oil line kit

I have about $2000 into the turbo setup and tuning

 

ahah 2gs, thats why.

 

Yeah i could have done it cheaper and built my own downpipe and dump tube, but I figured it would be much easier and faster to just order all the pieces. I'm thinking about switching up the kit this winter to a top mount setup with a different turbo and see what i can get out of this motor, I have a vitara built Z6 waiting to go in, so I might as well see where the breaking point of a D15B is..LOL

 

ahaha wow too much money man! but yeah i guess I'll look into it then, i just wanna go 15b cause its a strong motor. But I guess I have to look more into other SOHCs.

 

Where did you get your motor from? Mine is just from a JDM importer in Canada that has between 30000-40000 miles.

 

depends on the tune

 

i havent even picked up my motor yet, im still researching and finding out some setups. but for sure i want the 15b but people say go for the 1.6L

 

the jdm d15b uses the same rods as the 1.6 single cam variants you can get a kit fron fjt speccifically for the jdmd15b. All in all this is a stout little engine capeable of 220+ whp out of the box. I had mine not sure on the whp but it was on 13 psi and ran for a year untuned only reason it didnt last is the dizzy took a poo and caused one cylinder to not fire under boost

 

just got my jdm d15b tuned today, on 9psi she made 225whp and 175trq

 

i make just under 230whp with a greddy 18G @ 9.5 psi. stock as hell d16z6 with walbro 255, FPR, and 310cc injectors. fuel and tuning are clutch.