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maybe turbo in the (far) future?

 
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Old 07-22-2011, 03:08 AM
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maybe turbo in the (far) future?

so i have a h22 in my 5th gen. im going to be rebuilding the engine this up-coming school year in a auto mechanics class, as it has over 200k miles and i just want to learn more about engines. ill be a junior next year. now heres my question, i want to turbo my lude with a hp goal of around 300-350hp. ive done a little bit of research on turbo'ing and i know i'll have to build bottom end. so what i'm planning on doing is when i rebuild my engine to do just that. i'm pretty sure I don't want to go balls out though, just enough to handle the turbo, which I plan on doing after I graduate. BUT i'm not sure i want to turbo yet. is it possible to get 300 hp N/A? if so i would rather do that, then put a turbo on down the road in a few years. if you can go 300hp N/A what would be an estimated cost? or would it be better to slightly build bottom end then put a turbo on now? the reason I'd rather have an N/A engine is I'll be driving all over the country after I graduate from highschool, but a turbo would be super cool as well right now I'm leaning towards building the bottem end during high-school, then saving up for a turbo after i graduate, rather then spending a bunch of money just on all motor.
Opinions please?
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Old 07-22-2011, 03:19 AM
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Re: maybe turbo in the (far) future?

i forgot to add im only looking at spending no more then 4-5k while in highschool
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Old 07-22-2011, 10:30 AM
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Re: maybe turbo in the (far) future?

f/i power is much easier to obtain for less money. n/a your looking at 225-275 hp for 6-8k if not more. f/i you could easily obtain 350 with 3-5k. im sure everyone here will agree, turbo power is much cheaper than n/a power.
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Old 07-22-2011, 12:50 PM
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Re: maybe turbo in the (far) future?

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Originally Posted by flyerfolife View Post
BUT i'm not sure i want to turbo yet. is it possible to get 300 hp N/A? if so i would rather do that, then put a turbo on down the road in a few years. if you can go 300hp N/A what would be an estimated cost? or would it be better to slightly build bottom end then put a turbo on now? the reason I'd rather have an N/A engine is I'll be driving all over the country after I graduate from highschool, but a turbo would be super cool as well
Opinions please?
300hp n/a fwd car isnt daily street drivable so if you planning to drive around, that isnt smart thing to do. and it costs MUCH. turbo is much cheaper and more drivable..but then again, remember that your prelude is FWD and you wanna drive around. do you know what happens when you put 350-500hp to FWD car which you drive daily? you cannot expect it to be anything like comfy or smooth.

well, anyway, if your goal is 300hp you have to rebuild EVERYTHING, by buying custom parts and so on. stock parts doesnt handle that much power (or your car isnt reliable anymore), right?
imo theres no point of doing those things; car must be fun to drive daily.
of course you can put ALL of your money to a one car (you have to work like 3 years to get money and build that your "dream" car)... I guess its a hobby but goddamn why!? ;)

Last edited by TypeT; 07-22-2011 at 01:01 PM.
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Old 07-22-2011, 02:39 PM
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Re: maybe turbo in the (far) future?

if you turbo a stock h22 with the biggest turbo it can handle would it still be a PITA for a daily driver? you can turbo a stock motor right? or do you have to build bottom end even though your only getting 50hp out of your turbo? thanks for the answers guys!
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Old 07-22-2011, 03:30 PM
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Re: maybe turbo in the (far) future?

Don't get a massive turbo - those suck, and have no torque. Smaller turbos: More torque, less HP. Bigger turbos: More HP, less torque. Just get a medium-sized T3/T4 turbo. Ideally, a Garret GT28RS is perfect. It's good for about 300 HP, and you get great spool (torque). A lot of the 240 guys put them in their SR20's.

Also, you don't have to "build" much if you're not boosting too much (ergo, daily-driven). Buy bigger injectors (550cc, for example), a 255lph Walbro fuel pump, aftermarket head gasket, and some sort of standalone/piggyback ECU tuning device. THE TUNE IS THE MOST IMPORTANT ASPECT HERE. So make sure you get a tuner that knows what he's doing. When it comes to the turbo stuff, make sure you buy from high-quality brands.
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Old 07-22-2011, 04:08 PM
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Re: maybe turbo in the (far) future?

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Originally Posted by Vanz__ View Post
Also, you don't have to "build" much if you're not boosting too much (ergo, daily-driven). Buy bigger injectors (550cc, for example), a 255lph Walbro fuel pump, aftermarket head gasket, and some sort of standalone/piggyback ECU tuning device.
dont you need better fuel&oil pump and timing belt also?
+ better clutch of course... better brakes...

Last edited by TypeT; 07-22-2011 at 04:11 PM.
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Old 07-22-2011, 10:12 PM
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Re: maybe turbo in the (far) future?

if you were going to turbo to 300 hp, you would need...
walbro 255 lph fuel pump
bigger injectors
obd1 conversion
high quality, conservative, tune on something like neptune, ectune, crome pro, hondata, stay away from piggybacks
upgraded clutch
maybe stronger axles
turbo kit and turbo obviously
high quality head gasket
for better reliability, why not shave equal amounts of material off of the top of each piston to efectively lower the compresiion ratio with out changing the pistons/sleeves?
a catch can would also reduce smoking and increase power
you dont need an upgraded timing belt, oil pump, or brakes, but i do recomend a new tb along with the rebuild of course
maybe some turbo cams and new valvetrain if you really wanna gain some more power with that turbo. i also recomend 3' exhuast, unless you wanna keep it quiet.
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Old 07-23-2011, 12:05 AM
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Re: maybe turbo in the (far) future?

so i replaced all my belts about 1k miles ago, so i think im good there? and what im getting from you guys is i dont have to build bottom end with better pistons and rods etc. just get all the things that natt mentioned and my stock motors bottem end will be able to handle the turbo with out blowing up? thanks for the input this helped alot. so i can start researching and building my turbo kit and just do a oem engine rebuild and get around 280-300hp? and what about lsd? im not going to be taking this car to the drag or anything so for a turbo'd DD is it good to have one?
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Old 07-23-2011, 12:18 AM
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Re: maybe turbo in the (far) future?

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Originally Posted by flyerfolife View Post
so i replaced all my belts about 1k miles ago, so i think im good there? and what im getting from you guys is i dont have to build bottom end with better pistons and rods etc. just get all the things that natt mentioned and my stock motors bottem end will be able to handle the turbo with out blowing up? thanks for the input this helped alot. so i can start researching and building my turbo kit and just do a oem engine rebuild and get around 280-300hp? and what about lsd? im not going to be taking this car to the drag or anything so for a turbo'd DD is it good to have one?
for a dd'ed car with 300 hp that wont be tracked, id call an lsd overkill. the stock bottom end should be able to handle 300 whp, but only if its on a conservative tune. the tune will make or break you as far as power and reliability. and for the head gasket id go with cometic if you want the best
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Old 07-23-2011, 12:27 AM
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Re: maybe turbo in the (far) future?

ok no lsd, whew those are like a grand alone. and 300 whp is at the crank i think? which would be about 280 at the wheels? sorry im still new to cars lol. and your saying how i tune it will be the factor in how much hp i get out of it? like i could program it to produce less power then its capable?
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Old 07-23-2011, 01:40 AM
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Re: maybe turbo in the (far) future?

yes, the tune will force the turbo to push more/less psi and increase/decrease hp/tq. I don't know that much about turbo'ing a lude. but Im pretty sure thats right. lol

You should really do ALOT of research. This site has plenty of good info, just about everything you need. Go to main menu then gen tech talk then forced induction and it will all be there. Read up!
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Old 07-31-2011, 09:11 PM
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Re: maybe turbo in the (far) future?

As far as the long block is concerned all you need are a set of 9.0:1 mahle pistons, and some GE rods and OEM bearings and rings. Now for the upper end if you want to see 350 you are looking at a stage 2 cam set from skunk or BC along with a full valve train job (duel spring, titanium eveything) and .5mm oversized valves along with a P&P job. From their you need to look at the injectors, fuel pump, regulator, followed by the new ecm either a hondata or AEM setup, oh and then their is the half radiator and the entire turbo set up with intercooler, and finnaly the full day on a dyno, oh and I can't remeber did you say if you had a base model or SH model? If you have the SH your looking at finding a base tranny to get rid of the ATTS. Oh and yes you will need a lsd to keep you safe with 350+whp. But biggest advice do not skimp these H series engines are tempermental and don't have a problem detonating and go nuclear on themselves if things are not done right the first time.
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Old 08-01-2011, 12:04 AM
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Re: maybe turbo in the (far) future?

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Originally Posted by flyerfolife View Post
if you turbo a stock h22 with the biggest turbo it can handle would it still be a PITA for a daily driver? you can turbo a stock motor right? or do you have to build bottom end even though your only getting 50hp out of your turbo? thanks for the answers guys!
irregaurdless of my username...

our H series motors are built to be N/A all the way. you can turbo them, but Fk, you can turbo almost anything...

turbos kill the life of your engine, and running alot of boost should only go into a car that comes stock with a turbo.

there is also an entire thread that you can read, written by (in my eyes) the boost king, that will show you the nightmare you can find yourself in.

on that note. Good Luck
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