d15 turbo 1

ok, im sure this has been asked a thousand times, but what turbo would be best for a stock d15b2 with stronger rods and a sohc zc cam for a homemade turbo. also i need to know how to run the vacume lines and also some info for a fuel management system, how it works and do i need it to push 150 to 200 whp. also, can i diable the internal wastegate or take it off the turbo to use a external or is a internal as good as a external and how do i set my psi without a turbo timer or do i need a turbo timer. i only want to run like 7 to 9 psi for now till i build another engine. please i would like some help with this. Thanx

ok, im sure this has been asked a thousand times, but what turbo would be best for a stock d15b2 with stronger rods and a sohc zc cam for a homemade turbo. also i need to know how to run the vacume lines and also some info for a fuel management system, how it works and do i need it to push 150 to 200 whp. also, can i diable the internal wastegate or take it off the turbo to use a external or is a internal as good as a external and how do i set my psi without a turbo timer or do i need a turbo timer. i only want to run like 7 to 9 psi for now till i build another engine. please i would like some help with this. Thanx
Look at my post in the classifieds for a t3 turbo. About the rods you really dont need to go buy new fancy forged rods, have your stock rods to a machine shop and have them shot peened and resized. That will strengthen your rods well enough to run the boost levels you are talking about. I was running 10.5 psi on stock shot peened rods on a d series motor. You will have to get some turbo pistons with lower compression. I got JE forged pistons just for saftey and to make some more power. For fuel management you should get an FPR, larger fuel pump or an extra one, FMU or a SAFC or both. A turbo timer does not set boost, it keeps your car running after you take out the key so the turbo has time to cool off. You can get a manual boost controller($100) or an electronic boost controller($200-500). On my d16z6 I was making 187 with my set up using the stock cam.

but what is the differnce between the internal wastegate and the external wastegate?? and if its internal, can i take it out and just use a external?? also what size t3 turbo should i run and i need help with vacume lines if theres any to run from the BOV or the wastegate? Thanx guys and gals

also what is a fmu and a safc?? dont know the terms yet about things. im still a newbie at imports. i know alot about chevys though, that was my thing for a long time till i relized that imports are alot cheaper than trying to get a chevy as fast as a honda

did you do the mpfi swap or are you still dpfi

geez bro how big r the wheels on ur civic like 19", those look mad ricer yo.. geez

ok, im sure this has been asked a thousand times, but what turbo would be best for a stock d15b2 with stronger rods and a sohc zc cam for a homemade turbo. also i need to know how to run the vacume lines and also some info for a fuel management system, how it works and do i need it to push 150 to 200 whp. also, can i diable the internal wastegate or take it off the turbo to use a external or is a internal as good as a external and how do i set my psi without a turbo timer or do i need a turbo timer. i only want to run like 7 to 9 psi for now till i build another engine. please i would like some help with this. Thanx


150 - 200 hp on a d15b2 with 7-9 psi..... aint gonna happen, if the turbo has an internal wastegate, just keep it, it can be adjusted, turbo timers do not set the boost, turbo timers keep the car idleing for a certain amount of time with the key out so that it can cool down properly and not cake the oil onto the turbo, u would need a boost gauge and adjust the wastegate untill u make enough boost. its better to get forged rods and new pistons too just to be safe

geez bro how big r the wheels on ur civic like 19", those look mad ricer yo.. geez


dont come into threads flaming, its a great way to get banned

but what is the differnce between the internal wastegate and the external wastegate?? and if its internal, can i take it out and just use a external?? also what size t3 turbo should i run and i need help with vacume lines if theres any to run from the BOV or the wastegate? Thanx guys and gals
The internal wastegate is used on most stock turbo vehicles, I have never used an external wastegate just internal and have had no problems so far. Im sure you could remove it but that would require a new turbine(exhaust) housing and would just be a hassel. You should run a vacuum line from your intake manifold to your bov so when you let off the throttle the bov can open and let the boost escape. The wastegate will have a small hose connected to it goin to the turbo compressor housing. Look at some pics on the web, they are all over the place. Go to yahoo and type in internal and external wastegate and youll get tons of info on how they work and what the best one is to use on your application.

also what is a fmu and a safc?? dont know the terms yet about things. im still a newbie at imports. i know alot about chevys though, that was my thing for a long time till i relized that imports are alot cheaper than trying to get a chevy as fast as a honda
An FMU is a fuel management unit-it restricts fuel returning to the tank depending on boost level therefore increasing fuel pressure so you dont detonate or cause other serious damage to your motor. SAFC is an electronic fuel controller made by Apexi. Lets you play with your injector pulse width and some other stuff.

The internal wastegate is used on most stock turbo vehicles, I have never used an external wastegate just internal and have had no problems so far. Im sure you could remove it but that would require a new turbine(exhaust) housing and would just be a hassel. You should run a vacuum line from your intake manifold to your bov so when you let off the throttle the bov can open and let the boost escape. The wastegate will have a small hose connected to it goin to the turbo compressor housing. Look at some pics on the web, they are all over the place. Go to yahoo and type in internal and external wastegate and youll get tons of info on how they work and what the best one is to use on your application.


actually u dont need a new exhuast housing, i have a td04 that had an internal wastegate on it, they welded a small piece of metal over top to close it off. so now i have to use an external one

thanx for the info guys, no im still at dpfi but soon to upgrade to a mpfi, just wanted some info so when i do turbo. i know that i have to get new and stronger internals. also my car has 16" rims, its just the way it was sitting when i took the pic, i have a lowering kit, just havnt had the time to put it on yet, been working lots of hours at work. how much does a fmu cost and a turbo timer, im trying to keep cheap for now with my budget. i want to turbo my d15b2 stock with like 5 to 6 psi if it posable for a while till i get my other engine built. but i do really adpreciate all of your input.
thanx again

if you still have the dpfi (dual point fuel injection, basically throttle body injected), you should look into converting it to mpfi (multi point juel injection). I mean you dont really have to but it will get you closer to your goal of 150-200hp. do a search for mpfi conversion to get more info on how to do it. But as you said, if your just doing this till you can build another engine keep it dirt cheap if you want. Or you could just suck it up and turn this into your built engine :iceslolan

shit, you posted as i was typing

i dont want to turbo with a dpfi, they are no good to me, i want a mpfi. i know alot about d15's but just not much about a turbo. i also wanted to know what size turbo would be good for me and what car can i get it out of at a scraping yard?

heres (http://homemadeturbo.com/) a good site to learn about turboing a d-series. Your going to need to do a lot of reading if you really want to know what your doing. Its not too complicated or anything, its just nice to be able to understand everything about it so that you can do whats most beneficial for your application and know how to do it safely, keeping it reliable.

why dont you put an a6 head on that d15. it would flow a lot better and the cam would really help you get the hp you want. and the turbo i would go with a t25 (2ng gen eclipse) or a 14b (1st gen 5spd eclipse) use hf manifold, with adapter plate, you could do an eclipse side mount intercooler, with an fmu, stcok injectors, use the turbos internal wastegate and run about 6-7 psi your car would make around 170ish hp and be quick on the street. anything more on a d15 and you will need better rods and better fuel managment like safc or the best would be turboedit and chipped ecu. check out xenecron on here for more info on that he can hook u up.

or go with a td04 turbo from an automatic talon, there small, and they'll spool faster, thats what i'm gonna be running on my car :)

my plan was to run the std manifold, thats what i have on my car now, plus i have acsess to a machine shop, well 2 of them, my dad runs one and my step dad owns a mechanic shop and he has all the equiptment to build engines, so thats not the hard part, just finding all the parts i need for a good price because im on a budgit right now, but i still want to make my car faster than what it is now. i also need to look for a mpfi kit for a really cheap price. well would a 89 integra intake work on my car and also the ecu, reister box, etc???? please let me know, i heard the intake will work, but needs some work to fit right or something like that and if so i can do that without a prob. thanx guys

also, what year car had the a6 head?? and would a sohc zc cam work good for a turbo?? also would it be to much to port and polish my head with stock internals or should i just get it polished and the intake to?? just need some info so i dont mess things up when i get around to turboing it and also the mpfi swap. thanx guys

a6 is from 88-91 civic/crx si, ex bolts right on to your car and basically makes it an si motor. you need to do part of the mpfi conversion and get the whole head and intake manifold and dizzy if you can cause you need all those parts to make it real easy. then wire it all up, wiht a resistor box and your done. Yea Homemadeturbo.com is the shit!

but why would i need the whole head?? i have been told by many people its the same head with a differnt cam in it. is that true. also i know alot about the mpfi swap, did hours of reading and have guide lines of the wiring already. just need to get the parts.

Def go with a smaller turbo like the TD04 as you dont have a lot of torque. Becareful as well because those D15 rods are only pencil thick!

the intake/dizzy will not work from an 89 teg to do mpfi. the ecu and resistor box would though.

hmm i had a ihi-rhb5 turbo off a probe/mx-6. There not super small, but pretty small. I must say they spool up real fast. They will also help in the torque department.

Yeah if you want to go with a a6 head(the best flowing sohc head, as people say) you would need to get a new head, the valve cover can be reused as well as the plug wires and such.