Turbo Questions
 

my motor has aprox 190xxx kms on it, its in awsome running shape never had a problem with it, if anyone knows anything about turboing a b18a1 could you give me some info? im either gona turbo my teg or sell it and buy a truck, but i dont really wana build up the motor at the moment, would i be able to boost it and just run 5psi daily and be safe?

allsoooo would a clutch kit for a DC work with a DA?

Re: Turbo Questions
 

Ah...really? Turbo'ing a da is same as going turbo on any other car.

You need:
-exhaust manifold
-turbo
-downpipe
-intercooler with piping
-450cc + fuel injectors and 255lbs/min fuel pump
-blow off
-oil/coolant lines
-tune

The set psi for the setup does not mean ---- unless you know the turbo size you will run. On a holset hx52 5psi will blow the head right off while 5psi on a td04-14b will make nothing but noise. You set a power goal. A safe horsepower mark would be 240-250whp. Something like td04-18g can be had fairly cheap off of a volvo and will be enough not to peak out too early.

As for clutch, it depends on which year transmission you have. I believe 92-93 had the same clutches while 90-91 integra had different transmission input shaft.

Re: Turbo Questions
 

ohh okay, well i dont know dick all about turbos haha, but i guess what i should of said was, would i be able to boost the stock motor and still be safe providing it is set up and tuned proper? i want to make a little bit more power just for now.

and as for the cluth, the clutch will fit aslong as its the right size spline for the year?

Re: Turbo Questions
 

^^ simple answer is yes. as for clutch 90-91 teg has small spline so dc clutch would not fit.

ps. i have a small spline stage 3 clutch for sale

Re: Turbo Questions
 

i have a 93 tho, my buddy has a brand new stage 2 clutch and fly wheel from his old DC he never installed and he sold the car, thats why im asking hell sell me it cheap but i was wondering if it would fit the 93 tranny.

Re: Turbo Questions
 

also i got another question concerning turbo set up, if i relocate my battery to my trunk witch i plan on doing anyways..would a turbo kit mad for a "DC" be the same as a DA? i cant seem to find ANYTHING anywhere that is specific to a DA only DCs, is it just the piping that is different or is it actually the same?

Re: Turbo Questions
 

that should fit

Re: Turbo Questions
 

our engine bay has tighter space, so somethings are different. i would get a DA specific kit. my 2 cents

Re: Turbo Questions
 

is there a way to tell the difference between the small spline and big spline? like is there a certin size or something?

Re: Turbo Questions
 

I turboed my old Civic that had a B18B in it with about 160,xxx KM's. I ran 12 PSI on it no problem, for a about a year, and then I swap a Vtec head on it, and boosted it to 18 PSI and at that time it had about 180,xxx KM's on it, and it took it fine for the year I drove it like that.

I would not recommend going any more then about 7-10 PSI with higher mileage on the engine. I'm going to be boosting a B18A over this winter and it will most like have about 290,xxx KM's on it by then, but I'm not going any more then 7 PSI on that engine for the customer because of the mileage.

I'll Also be boosting my B20B maybe to about 15 PSI, but it only has 72,xxx KM's right now

Re: Turbo Questions
 

okay thanks guys.
one more question aprox what does a b18a make at the wheels stock? and what would you be able to get out of it after its boosted, no cams or anything extra, just exhaust bolt on turbo,injectors, fuel pump, tune, and FPR? at a safe DD setting

Re: Turbo Questions
 

Stock they are about 120 WHP. Believe it or not, but the stock fuel system will handle about 12 PSI of boost. I ran stock injectors, fuel bump, FPR ect. when i was running 12 PSI, and it was fine. The stock injectors are 235CC.

With about 8 PSI you should be around 160 WHP

Re: Turbo Questions
 

90-91 b18a=130hp
92-93 b18a=140hp
92-93 gsr=170
all hp its at crank not whp.
small spline clutch has 24 teeth

Re: Turbo Questions
 

it's about 20-25 HP you lose through the drive train.

Re: Turbo Questions
 

Martins favorite question/answers about PSI with no specific turbo doesn't make sense. PSI's matter on the size of turbo's PEOPLE!!

Boost the b18 wish i went with that route. and good luck :yeah:

Re: Turbo Questions
 

looking at the tranny without a clutch or anything am i able to tell if its small spline or big?

Re: Turbo Questions
 

dude ill be selling my turbo kit for my da soon if your interested pm me.

and safely without doing any work internally you can get up to 300hp but as martin said 240-260 would be sufficient.

the turbo is a garret t3/t4 60 trim the turbo will spool around 3500 with the b18 it was to big of a turbo for my b16.

Re: Turbo Questions
 

Holy crap I love people! Lol

Jason, your misinformation is just epic...how about we start naming god damn turbo sizes?

You can safely push ls engine to 300whp, and you can also blow it up with 280whp. Turbo sizing is key. If you have a bigger turbo and it starts building boost past 3k and suddenly you spike to your set 10psi let's say, it will cause a lot more stress on internal components. While having a smaller turbo, though it spools up quicker, it does not provide such volume of air at once causing a smoother boost increase.

Regarding fuel, no way in hell would I personally push 200whp+ with stock injectors. Running them at close to 100% duty cycle is last thing you want to do. Ffs go out and get some dsm injectors. You can buy them for about 60$ for all four, then spend 80$ to get them cleaned etc, and you will have a mint set of 450cc that will be good for what you want. If you spend time looking, you may come across some RC injectors for a fair price also.

Start reading...not stupid forums where everybody is a genius but go out and buy a book for a change, or find some articles/write ups about turbo sizing. Determine your power goal, then calculate how much boost will be needed to hit that goal. Once you have that down, start looking at compressor maps to see how each different turbo would work in your scenario. There are so many different combinations of turbos, and finding that right one is key. Well atleast that's the proper way of doing it.

There is also the "JDm" way. Get the biggest or cheapest turbo you can find, big order on ebay and hope for the best...

Re: Turbo Questions
 

You should read our article on proper turbo sizing and also check out our turbo sizing calculator

Different turbos will flow different amounts of air at the same boost level depending on how much the air is heated by that turbo/intercooler combination

Depending on your air mass (not your boost level) you will need a different size of injectors to match that mass ....

So a friend of yours can run '10psi' on a tiny turbo on stock fuel ... that doesn't mean that the stock fuel system is good for '10psi' ... because a small turbo with a low efficiency delivering 250cfm at 10psi will require much less fuel than a larger turbo delivering say 350cfm of air at the same psi.

Also worth noting here, smaller turbos have smaller turbines .... this restricts airflow on the exhaust side of the engine choking your engine.

Not many people understand this.

Your engine might be able to free flow 300cfm of air naturally aspirated. This means that 15psi on the engine requires a 600cfm turbo.

However, if you put a stock like restrictive turbine on the exhaust side of the engine, it may now only flow 250cfm due to the exhaust restriction... this brings in 15psi at the 500cfm mark ... the small turbo artificially elevates PSI

So even setting density ratio aside, a larger turbo, with the SAME compressor efficiency as your stock turbo can push more airflow through the system, if the stock engine is restricted by the stock turbo's restrictive turbine.

Re-read those last 3 paragraphs and mull over them for a bit... most people do not really understand how that works.....

So putting all of what's been mentioned above together... never size your fuel system based on 'psi' ... do size it based on air flow, or air mass ...

If all of this sounds too complicated, just use our calculator... it streamlines this entire process such that mere mortals (non engineers) can have access to this kind of insight without having to make sure they don't mess up the equations ...

Re: Turbo Questions
 

Holy Crap lol ^^ where did this guy come from. That has to be the most knowledgeable first post ever lol

Re: Turbo Questions
 

Yes for the newbie with the information!

Honda people + Turbo's always make me laugh :P Can tell you guys have never seen a turbo car in your life lol

DTP is pretty right though with his 2nd post, and ---- you need. It's an expensive process to do right, and I would recommend doing it the right way.