DJ - Turbo Help

[balactm]

I've recently picked up a mitsubishi td04h -15g turbo, downpipe, charge piping and manifold for a pretty decent price. There are a couple things i'd like to do, but am not sure if i have the proper skill and/or knowledge.

1. I'd like to do a rebuild on it to get all the bearings and everything cleaned out and get it looking so fresh and so clean clean. Dj, would you be willing to either help me out, walk me through it, or possibly do it for me if i paid you?

2. Regarding the internal wastegate, My goal with the build i'm planning is to have between 200 and 250 to the wheels. Obviously with a small turbo, and small wastegate, this will probably be pushing the limit of the turbo, but i like how small the turbo is and how fast it will spool. I'm going to be doing all of the supporting mods to hopefulyl get around that goal, including the hondata s300 for tuning purposes. My question is, will the stock internal wastegate spring be able to get me to that power level? and if not, how hard is it to convert to an external wastegate?

and just to reduce questions, i'm rebuilding te bottom end of my stock d16a6 with forged internals, .5mm oversized pistons, and stock head. no vtec i'll be running rc injectors, walbro fuel pump, and all the necessary fuel upgrades to go along with the extra boost, as well as an intercooler. sotck motor is rated at 106, so this will be a big jump, and i am hoping to run around 12 psi, as that is what i've read is about the peak of the efficiency range for this turbo, but correct me if i'm wrong.

[.RJ]

Is there an intended use for the car, or just project/daily driver/dick around with it?

[balactm]

Is there an intended use for the car, or just project/daily driver/dick around with it?

Since I have the truck now, this is going to be my weekend fun/autocross/possible track car. I might even deliver in it

[.RJ]

DJ will probably tell you to leave it alone and drive it

[CaptainHenreh]

Turbos are pretty hard to rebuild yourself. If it needs rebuilt, send it off, although a new turbo will probably be cheaper. If it doesn't need to be rebuilt, then leave it alone and throw it on the car.

ETA: I have an SVO T3 I'll let go for cheap. No shaft wobble, should be good to go. :-D

[D_Eclipse9916]

Rebuilding a turbo is actually relatively easy if its side to side shaft play. Especially cause its a mitsubishi turbo. The main thing is marking them, they are balanced from the factory and if you do not align everything back up perfectly, youll grenade your turbo quite quickly. I know a few people who rebuild turbos if your interested, $100 to $200, that includes sodablasting everything, new oil plate, new gaskets, and new oil rings. I personally dont even have time for my own cars anymore so unfortunately I cant help you with it.

I do say leave it alone and drive...shut up RJ lol.

As for horsepower, I would suspect you make 180-200whp realistically. maybe 220whp if its perfectly tuned etc etc. The 15b is a SMALL turbo, so spool will be relatively quick on even a 1.6 liter honda motor.

An internal wastegate will be fine if you port it out a bit. Stock it will probably like to creep just a bit maybe up to 14-15lbs.

Y not just use a stock D16? A lot of people go crazy with builds which is the wrong way to do things. Throw it all on the stokc motor, and see how it goes. If you blow it up, you blow it up. Ive heard tons of stock d16s with headgaskets do 200whp. Rather blow up a stock d16, pick up a new one for 200 bucks and throw it back in there than ever deal with engine builds.

You could do a real budget build with that 15g, a 14b, or t25. With small modifications a dsm manifold bolts up to hondas, bolt on the turbo, tap the oil pan, tap the head, ive got tons of intercooler piping, use a stock DSM sidemount that you can pick up off a dsm board for like 10 bucks. Then throw hondata on it with stock turbo dsm 450cc injectors. And enjoy. I do not suggest a front mount for this setup, youll more likely get more pressure loss from the fmic than any benefits youll see at 12psi. I think 12-14psi would be great for that honda motor after looking at the compressor efficiency map. You wont make any more power over 14psi with that td04 hot side though.

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[JustinG]

do not turbo a non turbo car.....true story

[Gs dewd]

do not turbo a non turbo car.....true story

Believe him he has seen the destruction this causes.