Can someone tell me what has to be done to add turbo to d15b7? Do internals HAVE to be changed, or can it handle it? I have been reading all your posts, and I can't find a clear answer to this.

depends on how much strain your gonna put on them what are your horsepower goals

how much strain?? My horsepower goals are as follows.....ANTHING FASTER THAN THIS STOCK DOG!!!! Just kidding. No seriously, just looking for it to be quick.

i wouldnet push 300 hp on stock internals

who said anything about 300hp??? My question is can turbo be added in its current state, or do I have to change internals? If it can be added in its current state, how much can I get out of it??

low boost application - sure with a proper tune...

You can probably get about 175-200whp out of it. A greddy kit at 10psi is about what I'd max it at, no more than that.

D15B7 has dinky rods, doesn't take too much to snap them. Just swap in a D16Z6 for cheap and boost that, someone around here is making 375whp on a 100% stock block.;)

ORIGINAL: dfdon

i wouldnet push 300 hp on stock internals


I wouldnt push past 190 on stock internals.

id pick up like a greddy kit or build something similar and boost on your motor stock. dont even bother attempting to build the b7 unless you got the cash to spend. rods for instance, only one set i have ever seen and there $700 a pop for the d15's. a basic greddy kit with an adition of the intercooler and bov would be perfect for a starter new to forced induction.

sorry about the 300 repley i was thinking of a b series

greddy kits are over 2,000 and they dont come with a intercooler or bov? That sucks

ORIGINAL: dfdon

sorry about the 300 repley i was thinking of a b series


Without an unbelievable good tune on a b series i still wouldnt want 300whp on stock internals.

just boost it. Run 6-8 psi. Get a good tune, youll make around 150-160 WHP, and that will be way more than stock, and ull be happy. Check to DIY section for my grocery list turbo kit. Boost for under a G.

Boosted cars are the $hit. U are punching it, and then around 3500-4000 rms boost hits and BAM your tires start looking for real traction. My car is Automatic, and it sucks..........however, my automatic honda civic will chirp the tires in second gear........and ive got 17s on the car. 10 psi.

ORIGINAL: Pete

Boosted cars are the $hit. U are punching it, and then around 3500-4000 rms boost hits and BAM your tires start looking for real traction.


oh yeah well as soon as i punch the gas even at 1k rpms i see a full 8lbs[8D] i love my supercharger..........makes for a very fun daily driven car. but either way boost is the way to go if you want to make good power and not have to worry about daily driving like say an n/a d-series motor with evn 160bhp.

Pete when you say "just boost it" you are talking about my stock d15b7 right? Everyone has conflicting reports on whether the stock engine can take it. Everyone is saying the stems can't handle it! Which is it?????? Can a stock d15b7 handle boost??? If so how much??

I like superchargers, BUT.........my turbo is much less limited. Internal upgrades on my motor and crank the boost up to 15 psi........still wouldnt max t[sm=bling.gif][sm=smiley20.gif][sm=w00t.gif]he turbo out. Oh and I get 45+ MPG on the highway @ 65 mph

ORIGINAL: zarembad

Pete when you say "just boost it" you are talking about my stock d15b7 right? Everyone has conflicting reports on whether the stock engine can take it. Everyone is saying the stems can't handle it! Which is it?????? Can a stock d15b7 handle boost??? If so how much??


It can handle 5-6 lbs...just make sure you have a good tune

Can someone explain to me what you are exactly referring to when you say a good "tune". I think I know, but just want to make sure I am on the same page. Thanks

it means you take your car to a reputable tuner who tunes your A/F's and ignition on a dyno...

thats what I thought.......thank you.

The real beuty of D-series engines is that they are DIRT CHEAP. You can pick up a block for $50 and build that in under $500-600 or actually I had plans on building one in under 400...heads can be had for under 100 if you look hard enough...S20 transmissions can be found under 200 again if you look hard enough...

ORIGINAL: Remmy

ORIGINAL: dfdon

sorry about the 300 repley i was thinking of a b series


Without an unbelievable good tune on a b series i still wouldnt want 300whp on stock internals.


Tut tut, did you not read my post? Guy around here is making 375whp on a 98% stock D16Z6, Jeff Evans tuned. Engine even survived a 31psi spike making an incredible 410whp. Only mods are ARP head studs and a cosmetic head gasket.

Never say never!

The D15B7 block is probably good till about 200whp, the rods won't hold up well. It will also need a good tune in order to last, along with a modified oil pump etc. It's not going to be just a "throw it on and cross your fingers" kind of thing, you will need to take extra precautions because this engine is seriously not a boost engine.

Like I said, pick up a full Z6/Y8 swap for $400 bucks and turbo it. Much more aftermarket, and much more support should you blow it to pieces.;)

I have a boosted d15 that puts out 164whp at 8lbs. I don't even have an intercooler yet and I've been running it like this for over a year! Love it. I would like a bit more power, so I'm just finishing up putting in another turbo set up. I'm just running a 12:1 fmu, but if that doesn't meet my needs, I'm seriously looking at a Greddy emanage Ultimate.

By the way D15's are cheap, but who wants to spend their weekend pulling engines. Do your homework (see what other people are doing with d15's www.homemadeturbo.com) and get the tune.

Good luck

ORIGINAL: Pete

I like superchargers, BUT.........my turbo is much less limited. Internal upgrades on my motor and crank the boost up to 15 psi........still wouldnt max t[sm=bling.gif][sm=smiley20.gif][sm=w00t.gif]he turbo out. Oh and I get 45+ MPG on the highway @ 65 mph



ya, forty told me that my car was way faster than MHR's supercharged integra

i turboed my cx which has the same bottom end as the d15b7 with 180,00 miles on it and after 3/4 of a year untuned which i just got it tuned last friday, it doesnt burn anyoil and holds up just fine...

ORIGINAL: SovXietday


Tut tut, did you not read my post? Guy around here is making 375whp on a 98% stock D16Z6, Jeff Evans tuned. Engine even survived a 31psi spike making an incredible 410whp. Only mods are ARP head studs and a cosmetic head gasket.

Never say never!

The D15B7 block is probably good till about 200whp, the rods won't hold up well. It will also need a good tune in order to last, along with a modified oil pump etc. It's not going to be just a "throw it on and cross your fingers" kind of thing, you will need to take extra precautions because this engine is seriously not a boost engine.

Like I said, pick up a full Z6/Y8 swap for $400 bucks and turbo it. Much more aftermarket, and much more support should you blow it to pieces.;)




Thats great and all but i wouldnt make it my DD. When you do that you basically are asking an engine that does 160 at the crank out of the box to do 215 more hp. Thats a chit load for a DD.


And wtf is "tut tut"

ok i saw the z6 on here would be ok to boost but would the jdm d15b be as ok to boost??

ok i saw the z6 on here would be ok to boost but would the jdm d15b be as ok to boost??
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also because i'm looking into boosting, i also have the greddy kit in mind. but i'm curious to see what kind of psi i'm looking at at just bolt on and tune? i'm looking to boost more or less 10-12 or would i have to upgrade stock internals? also if i were to upgrade the turbo would i need new turbo manifold and all the new hardware? any help would be awesome.
[quote]ORIGINAL: roblinxs011087

all depends on the turbo exhaust flange^^^