ok i need some help on this one im going to get either a usdm or jdm engine and then build it and turbo it and drop it in if i just wanna run 10-12 lbs of boost do u htink i should do pistons cams valves valve springs and all that or just do like cams and cam gears? also how much hp do u think i will get from that thanks

 

Well, that should be safe to do on stock internals, to say how much your going to be putting at the wheels is a big ?

 

so u think i could jsut do like cams and cam gears and run safely at 12 psi

 

Duhhhh... what kind of turbo are you going to run? I think that'd help ANYONE out with giving you some rough idea of what kind of horsepower gains to expect.

I highly suggest going to the Forced Induction section for your inquiry though. They'll be able to help you.... after they flame you for not reading all the other posts on this subject already.

-Rik

 

What is your idea of "building" it? You say you're going to build then, then you say you should also do

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted94teggy &raquo;</TD></TR><TR><TD CLASS="quote">pistons cams valves valve springs and all that </TD></TR></TABLE>

The process of building it includes putting aftermarket pistons, rods, etc in it. As BuildB18C5 said, if you plan on keeping it at 10-12psi, AND VERY GOOD TUNING, then you don't really need to build that much. To get it more reliable, I'd at least do forged pistons and rods, but that's just me.

Keep in mind, these numbers are for the "standard" aftermarket turbo for Hondas. Usually somewhere in the range of a T3T04. The engine's limit is how much power it can make, not how much boost it can take.

I would first research a little on the turbo system first before going any further. You can, if you want, go with camshafts, valves, valvesprings, but know that the head is not the weak point in a turbo application. Once your car is turbo, I'm sure the head will be the least of your worries when you want to make more power.

 

what is the weakest part of the engine then when it is turboed

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted94teggy &raquo;</TD></TR><TR><TD CLASS="quote">what is the weakest part of the engine then when it is turboed</TD></TR></TABLE>

The bottom end, i.e. connecting rods / pistons / crankshaft. I would focus on spending any money on the build up here. As for an answer to the original question, a little detail goes a long way. It might help provide better advice for you.

Always remember - Punctuation is a good thing.

 

mMmm... turbo

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted94teggy &raquo;</TD></TR><TR><TD CLASS="quote">what is the weakest part of the engine then when it is turboed</TD></TR></TABLE>
yea the pistons are the first to go.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Integra_drk &raquo;</TD></TR><TR><TD CLASS="quote">
yea the pistons are the first to go.</TD></TR></TABLE>

or the rods.

Really, the headwork is the last thing you want to focus on with a turbo setup.

I hate when people throw out "safe psi" numbers. 10-12 psi is night and day if you are comparing a T15 turbo to a T3, so it really depends on the flow.

Good tuning will also play a big part in how much power you will be able to run. A crappy tune at 8 psi will be more likely to blow your motor than an awesome tune at 15 psi, regardless of how the motor is built.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stolen94GSR &raquo;</TD></TR><TR><TD CLASS="quote">

The bottom end, i.e. connecting rods / pistons / crankshaft. I would focus on spending any money on the build up here. As for an answer to the original question, a little detail goes a long way. It might help provide better advice for you.

Always remember - Punctuation is a good thing. </TD></TR></TABLE>

I agree with your on most of your statement except that weak crank one. the honda crank is forged unit and is very strong . there are people making 500hp plus on a basic stock crank. If anything you could knife edge the crank and micro polish it but I wouldnt waste money replacing the crank on a street car unless you plan to stroke the motor, etc.