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is my car ready for boost?

 
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Old 12-09-2010, 05:13 PM
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is my car ready for boost?

ok so iv been wanting to put my lude on boost since the day i bought it but i just never had the money to do it, i just recently got a good job and i look to be in good shape money wise so i think im going to save up to boost my car. i cant spend to much but enough for a bolt on kit. the only one that i could find is the rev hard turbo kit, i found it on turbokits.com. i think after christmas im going to take my lude to the performance shop and ask them if they think i can put a turbo in safely. i did a compression test today and this is what the numbers were.

cylinders:
1. 215psi
2. 225psi
3. 195psi
4. 220psi

and i checked my fuel and it was 55psi

If anyone can help me out and tell me what they think i would really appritiate it, or if they know of other bolt on kits let me know, thanks guys
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Old 12-09-2010, 05:15 PM
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Re: is my car ready for boost?

You've never read the "so you wanna go turbo, huh?" thread, have you?


In a nutshell. I'd say no.
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Old 12-09-2010, 05:22 PM
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Re: is my car ready for boost?

no i havent ill check it out but why would you say no is my compression to high?
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Old 12-09-2010, 05:47 PM
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Re: is my car ready for boost?

The only thing those numbers help with is telling you that your motor is in decent shape. Those numbers have nothing to do with 'compression being too high'.

You need to do a lot more research, and piecing together your own kit will be a lot cheaper and safer than buying a ebay kit
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Old 12-09-2010, 05:50 PM
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Re: is my car ready for boost?

Well first off, how much money do you have for this?

If its anything less than $10,000 USD, you very likely don't have enough dough, and haven't anticipated how big an undertaking turboing a factory N/A motor is.

Long story short, your engine is not made to handle turbo. Some of the things you would need include, but not limited to:

-Resleeving the block
-Getting low compression pistons
-Buying the whole turbo deal, you know: wastegate, blow off valve, snail, manifold, intercooler, blah blah blah
-retuning the car for boost


And there is a lot more to it than that. And if you just want to slap on a "bolt on turbo kit" and go, you will most likely explode your engine. Either that or the boost it provides would have to be so minimal as to make it useless.
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Old 12-09-2010, 06:01 PM
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Re: is my car ready for boost?

i see alot of cars running bolt on turbo kits, i understand that it may not be the best or safest way but theres a kid in my school with a lude that has the rev hard turbo kit with a completly stock motor the only thing he has done is put an aftermarket radiator and exhaust, hes had the car like that for almost a year without a problem.

and im not trying to make high numbers, im just getting sick and tierd of loosing to integras and civics, i need a lil more power
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Old 12-09-2010, 06:10 PM
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Re: is my car ready for boost?

havic wtf are you talking about? you can turbo an h22 with 4-5000 for everything. hes not looking to boost the fukin thing to 30psi. keep it around 8psi with a t3/t4 turbo. that's pretty safe for a stock engine
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Old 12-09-2010, 06:14 PM
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Re: is my car ready for boost?

From my understanding, a safe, reliable turbo setup that actually makes power is pretty expensive and involved, and definitely not safe for a stock motor.


Although if I'm wrong I'm wrong.
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Old 12-09-2010, 06:31 PM
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Re: is my car ready for boost?

If you have to ask, you aren't ready.
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Old 12-09-2010, 06:33 PM
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Re: is my car ready for boost?

You can definitely boost a stock h22 and it be reliable. Its all in the tune. U can run a good 7lbs of boost or so and still be reliable. Ive seen ppl with a stock h22 running 7lbs of boost for years with no problem.

To the op. Just make sure u get a good tune and you'll be fine. U should try and get 98vtec(blake) to tune your motor! Lol. Thats who I would get. Your motor seems healthy. I say go for it once u research a lil more.
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Old 12-09-2010, 06:37 PM
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Re: is my car ready for boost?

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Originally Posted by havikprelude View Post
From my understanding, a safe, reliable turbo setup that actually makes power is pretty expensive and involved, and definitely not safe for a stock motor.


Although if I'm wrong I'm wrong.

You are wrong.


The problem with a turbo setup that really kills the prelude guys is that our motor doesnt hold up to 'blatant abuse' under boost well.

Most people who decide to boost their ride, end up getting anxious or running out of cash to follow through. They start taking a few shortcuts or simply get excited before they should. They end up testing it out before its ready or just skipping some of the vital parts.

The sad part is 90% of people end up doing this.. Seems most people have more money than intelligence sometimes..



Tommy's (me) two simple rules for boosting:

1. use a tunable ECU(hondata, chrome, neptune, etc) and pay a professional tuner to completely tune your car before driving it a single mile after installation of 'boost'.

Only start the car to allow it to idle while checking for leaks, sensor issues, etc. This eliminates that shortcut that destroys your engine so quickly and simply telling you not to drive around boosting it never works

2. Spend your money wisely. Dont buy parts you dont need. And dont go cheap on critical parts. You dont need cams, cam gears, a fuel rail, a throttle body, or an IM to boost... So dont buy these parts first...
What you do need is a good turbo, manifold, wastegate, ECU*, TUNER*, and quality couplers.

I cant think of anything else at the moment, but Im sure you get the point by now.

You can safely push 250-300whp on the stock block all day long for years of trouble free driving if you spend the time and money to do it right.


My credentials on the subject: :::Lilbluelude::: 89 Prelude Si (boosted h22 600+whp)
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Old 12-09-2010, 06:42 PM
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Re: is my car ready for boost?

upgrade your header? that's a complete waste of money
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Old 12-09-2010, 07:52 PM
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Re: is my car ready for boost?

I have never boosted a car. but from what i have learned on this website and from experiance in other matters when it comes to our cars. you have to PAY TO PLAY! we dont drive civics or tegs where you can put some cheap sh1t on em and still be good to drive. you gotta remember. whenever honda wanted to try something new they tried it out on our beloved prelude =P and if u want to boost. you gotta go big or ur screwed! in the long run that is

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Old 12-09-2010, 07:56 PM
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Re: is my car ready for boost?

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we dont drive civics or tegs where you can put some cheap sh1t on em and still be good to drive.
No, they blow up too. It's just that their motors grow on trees.
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Old 12-09-2010, 09:05 PM
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Re: is my car ready for boost?

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You are wrong.


You can safely push 250-300whp on the stock block all day long for years of trouble free driving if you spend the time and money to do it right.
Which is what I was getting at. You gotta spend the money to do it right. I've read quite a bit on it, twoke's article and quite a few others, and I remember reading somewhere that a reliable turbo setup is gonna cost around 8-12 grand. I'm pretty sure that figure includes spending very good money on parts and prepping the block too.

I suppose running fewer psi on a stock block would be quite a bit cheaper though.



And like I said, when I'm wrong, I'm wrong, and I don't mind being corrected if it means I'm learning how to do it right.
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Old 12-09-2010, 10:04 PM
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Re: is my car ready for boost?

My freinds stock turbo lude is running 8 lbs so I'm prob just going to run 7 just to be safe. And I heard that Blake didn't tune hondata? Does he?
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Old 12-09-2010, 10:39 PM
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Re: is my car ready for boost?

I have to disagree with the whole " at least 10gs to boost"
Maybe if your going for a very well performance boosted car with over 10-15 pounds, or to run on the track yes. But i have PLENTY of friends around here who piece their own kits together and tune for under 2gs and they run strong and reliable. The big thing is people cranking up pounds of boost, which in hand blows the motor.
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Old 12-09-2010, 11:01 PM
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Re: is my car ready for boost?

About how much hp are you wanting?

I would save around 5 grand atleast

Turbo-?
Engine work?
Injectors, ecu, hondata or something to tune it with (stand alone), tune- Around a grand

Even if u keep the block stock (low boost small turbo) and all you'll still need bigger injectors and a chipped ecu and tune no matter how much u boost it
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Old 12-10-2010, 07:04 AM
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Re: is my car ready for boost?

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the only hondata i will tune is krpo. And that will all go away when neptune/moates complete development for k series.

"bolt on" kits are typically junk. that rev hard kit is old school. Piece a turbo kit together with the proper performance parts (ie: turbular, tig welded turbo manifolds..etc)

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and you need to size your turbo for the power you are looking to make. If you are looking for 250-300whp, dont run a turbo like a GT35R. Something like a GT28 or GT30R is much more suitable for that amount of power.
Tanks for the info Blake. Im going to follow ur advice on this and put together my own turbo setup. Me and my girlfriend want to go to pensicolla over Christmas break to see here family, u mind if I go to the shop u work at and just talk to u further in person so I can get an idea of how much I'm going to spend and what not. Prob a couple month later ill bring it to ur shop and get it tuned
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Old 12-10-2010, 05:13 PM
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Re: is my car ready for boost?

boost it baby just do a lot more research on here to learn and understand
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Old 12-10-2010, 06:44 PM
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Re: is my car ready for boost?

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Originally Posted by havikprelude View Post
Which is what I was getting at. You gotta spend the money to do it right. I've read quite a bit on it, twoke's article and quite a few others, and I remember reading somewhere that a reliable turbo setup is gonna cost around 8-12 grand. I'm pretty sure that figure includes spending very good money on parts and prepping the block too.

I suppose running fewer psi on a stock block would be quite a bit cheaper though.



And like I said, when I'm wrong, I'm wrong, and I don't mind being corrected if it means I'm learning how to do it right.

wrong, just give up.....
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Old 12-10-2010, 09:11 PM
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Re: is my car ready for boost?

Ugh...All you really need is a good old Hondata tune-up, bigger injectors, and a 255 lph fuel pump. And piece together your turbo kit. It'll be cheaper, and you will get everything you want, and nothing you don't. Also, don't boost past 8 psi until you get some more engine upgrades (sleeving, pistons, rods, valve train upgrades, head gasket, etc).

Good luck
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Old 12-10-2010, 09:14 PM
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Re: is my car ready for boost?

one thing also to remember is 8psi is differant on a smaller turbo than a larger one. psi doesn't really mean anything. it's all about tue volume of the air that you're pushing into the engine. that's why srt-4s only make 240 hp at 14psi...
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Old 12-11-2010, 02:19 AM
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Re: is my car ready for boost?

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Originally Posted by UPSluder View Post
one thing also to remember is 8psi is differant on a smaller turbo than a larger one. psi doesn't really mean anything. it's all about tue volume of the air that you're pushing into the engine. that's why srt-4s only make 240 hp at 14psi...
I've heard this before, but nobody has been able to explain it to me... Here's how I see it: with no restriction in your intake flow (naturally aspirated), your engine can only take in X amount of cubic feet per minute of air. This won't change without forcing air into the engine. At your max boost, your engine is taking in more air, at so many cubic feet per minute. If you're putting more air into the system, you're creating more boost. If a smaller turbo and a bigger turbo are forcing enough air to create the same amount of pressure, then how can one produce more power? Is it because of the heat created by the smaller turbo reaching the end of it's efficiency, or what makes the difference? It doesn't make sense to me.
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Old 12-11-2010, 10:56 AM
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Re: is my car ready for boost?

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Originally Posted by Phantom240 View Post
I've heard this before, but nobody has been able to explain it to me... Here's how I see it: with no restriction in your intake flow (naturally aspirated), your engine can only take in X amount of cubic feet per minute of air. This won't change without forcing air into the engine. At your max boost, your engine is taking in more air, at so many cubic feet per minute. If you're putting more air into the system, you're creating more boost. If a smaller turbo and a bigger turbo are forcing enough air to create the same amount of pressure, then how can one produce more power? Is it because of the heat created by the smaller turbo reaching the end of it's efficiency, or what makes the difference? It doesn't make sense to me.


this is the exact reason why people gotta stop thinking in terms of pressure (psi) and start thinking volumetric flow (CFM's).

a GT35r @ 14psi flows a BUTTLOADDDDD more CFM's than a 14b @ 14psi.
CFM's = powwaaaa
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Old 12-11-2010, 12:59 PM
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Re: is my car ready for boost?

one of my friends has two turbos for sale that he would sell me for about 600-650 and they are both brand new, here are the specs that he gave me for them.

there both turbonotics turbos

-T3 super 60 2.35"/2.0" inlet, outlet stage 1 (49mm)turbine wheel .48A/R housing
that one should make up to 315 hp.

-TO4B super S 2.75"/2.0" inlet, outlet stage 2 (54mm)turbine wheel .48A/R housing
and it should make up to 350hp.

what do yall think? he is selling them to me for about 200 bucks cheaper than the regullar price so it seems like a good deal that i should take advantage of.
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Old 12-11-2010, 02:03 PM
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Re: is my car ready for boost?

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Originally Posted by twokexlv6coupe View Post
this is the exact reason why people gotta stop thinking in terms of pressure (psi) and start thinking volumetric flow (CFM's).

a GT35r @ 14psi flows a BUTTLOADDDDD more CFM's than a 14b @ 14psi.
CFM's = powwaaaa
I was drunk when I posted that. My mind still doesn't quite wrap around it though. How can two different turbos create a 14psi manifold pressure, yet flow different CFM at the same time? I would figure that at a given engine speed, you would need X amount of CFM of flow to create a 14psi manifold pressure... I dunno how to explain it really.
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Old 12-12-2010, 07:26 PM
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Icon5 Re: is my car ready for boost?

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Old 12-15-2010, 06:49 AM
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Re: is my car ready for boost?

Hey guys I have decided to wait a little bit longer and do this right. I'm buying a h22a4 that my friend is selling today, my plans are to Bore put that block then sleeve it, get low compression pistons and forged rods, a thicker headgasket and then a good turbo setup. I want to end up getting around 350 maybe a lil higher. I decided to take my time with this and do things right I should havr everything by summer then ill have Blake tune it. BTW do yall think I should change my crankshaft? Oh and I plan on keeping my head stock with some adjustible cam gears anyone know a good brand?
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Old 12-15-2010, 04:52 PM
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Re: is my car ready for boost?

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Originally Posted by 98vtec View Post
you dont need a thicker head gasket if you are getting low compression pistons. Have the machine shop inspect the block/crank, or whoever is going to be building it.
Well I was planning on putting the sleeves on myself and the pistons and rods, and everything else myself then taking it to ur shop to get it tuned. Iv sleeved up a vortech motor today and it wasn't that hard so I figured is save my money and do it myself. But I was looking at your shops website and for the prelude ur building up it said that u got it bored in jacksonville? I was woundering if u can give me there address or website or something cause that's originally were I'm from and my perants live there so it be easy to get that done sometime I'm visiting them.
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