The effect of high boost (psi) on a motor??

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Old Aug 4, 2005 | 01:05 AM
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Default The effect of high boost (psi) on a motor??

okay, i have a 92 CRXsi with B16. If i get a Stage 3 turbo with everything i need (downpipe, manifolds, gaskets, intercooler, wastegate, intake etc.) and i run that turbo at 18-30psi, at this high of a pressure, will it cause parts (any parts) in my car to wear out faster, even if they are upgraded parts..

or should i just run it at a lower PSI.. say like 8-10lbs...
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Old Aug 4, 2005 | 01:07 AM
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Default Re: The effect of high boost (psi) on a motor?? (8.6secondCRX)

i hope your motor is built for 18-30psi!!!!
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Old Aug 4, 2005 | 01:16 AM
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...what do you mean by built??

how built would it have to be..
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Old Aug 4, 2005 | 01:20 AM
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Default Re: The effect of high boost (psi) on a motor?? (8.6secondCRX)

https://honda-tech.com/zerosearch
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Old Aug 4, 2005 | 01:24 AM
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Default Re: The effect of high boost (solohatch)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 8.6secondCRX &raquo;</TD></TR><TR><TD CLASS="quote">...what do you mean by built??

how built would it have to be..</TD></TR></TABLE>

Again, these posts.

Learn the basics of engine first, then start to educate yourself by reading topics for example.

It is not easy to tune the engine if you dont realise how the engine works.

For example you would know what does more air mean in engine (your high
boost).

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 8.6secondCRX &raquo;</TD></TR><TR><TD CLASS="quote">okay, i have a 92 CRXsi with B16.</TD></TR></TABLE>

Hmm. There is a little mistake also, study study study...

CRX was never made in 92.

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Old Aug 4, 2005 | 01:52 AM
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lol, i ment 91!

i know how engins work, i was just wondering if you thought it would be a better idea for me to fully build my b16 so i can run like 25psi, or just keep my stock b16, put intake, and full stage 3 turbokit on it and run it at 8psi.
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Old Aug 4, 2005 | 06:18 AM
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If you have the money to rebuild a b16 to handle that much boost, then go for it dude! Honda will probably even replace your engine when you blow it up for being such a brave soul.

I dont even want to speculate on how low your compression would need to be, and the countless other things you would need to do to your block to handle that much more AIR (and thus more FUEL) but a new fuel pump and new injectors would be a start.

Beyond that, good luck
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Old Aug 4, 2005 | 11:45 PM
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so how much money do you think i would have to put into my motor before it can handle that much pressure??
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Old Aug 5, 2005 | 12:16 AM
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Default Re: (8.6secondCRX)

6 grand
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Old Aug 5, 2005 | 12:43 AM
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just on the motor alone..?
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Old Aug 5, 2005 | 01:12 AM
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Default Re: (8.6secondCRX)

You seem like you need to do alot more reasearch bro. Just keep browsing trough threads you will learn alot.

And btw whats up with your username?
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Old Aug 5, 2005 | 07:48 AM
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Default Re: (SloS13)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SloS13 &raquo;</TD></TR><TR><TD CLASS="quote">Thats how fast CRX's are at 25psi duh! Its stage III man. </TD></TR></TABLE>
more like his 0-60 time
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Old Aug 5, 2005 | 07:51 AM
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Default Re: (Ace$nyper)

It not really an effect it's a sound it goes something like "BOOM". On the real though I ran 9 psi on my stock block B16 when it was turboed , then again It was tuned.


Modified by UNDER PRESSURE at 7:32 PM 8/5/2005
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Old Aug 5, 2005 | 10:30 AM
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Default Re: (UNDER PRESSURE)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by UNDER PRESSURE &raquo;</TD></TR><TR><TD CLASS="quote">It not really and effect it's a sound it goes something like "BOOM". On the real though I ran 9 psi on my stock block B16 when it was turboed , then again It was tuned.</TD></TR></TABLE>
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Old Aug 5, 2005 | 10:48 AM
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Default Re: (8.6secondCRX)

What is a "Stage III turbo kit"?

Why do you want to run 30 psi? Is this a drag only car?

If you want to push 30 psi safely, you will need to build your engine from the ground up, sleeves, forged pistons, rods etc. It will be a LOT of money.

I say throw a cheap turbo setup on there, set the boost to 10psi and drive the **** out of it... a b16 at 10psi in a CRX would be a fun car.
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Old Aug 5, 2005 | 10:59 AM
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30 psi on a honda engine.... jesus christ. most people do like 8-15 maybe, for 30 ud need one hell of a low compression, with a couple grand worth of internals plus another 2-3k for the turbo, and probly over thousand for the labor unless u can do it urself. usually they do that kinda power with turbos on bigger engines like i-6's v's and such. i think 30 psi is too much boost for a 4 cylinder
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Old Aug 5, 2005 | 11:22 AM
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Default Re: (8.6secondCRX)

built block = $2900-$3500 (not counting the cost of the block)
built head = $1500-$2000 (not counting the cost of the head)
turbo setup = $3500-$5000
misc stuff = $1000-$2000

But before you even get into turboin'g your car I think you need to hang around the forced induction forum for a while.
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Old Aug 5, 2005 | 01:51 PM
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Default Re: (BlueShadow)

Start here:
https://honda-tech.com/zerothread?id=1024174
(its not the search )


My 2 cents:
Be patient
DON'T cut corners
If you have thought about it, someone else probably already has.
Search
Bring Money
Be patient
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Old Aug 5, 2005 | 02:22 PM
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Default Re: (8.6secondCRX)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 8.6secondCRX &raquo;</TD></TR><TR><TD CLASS="quote">i know how engins work, i was just wondering if you thought it would be a better idea for me to fully build my b16 so i can run like 25psi, or just keep my stock b16, put intake, and full stage 3 turbokit on it and run it at 8psi.</TD></TR></TABLE>

You won't need that intake with a complete turbo "kit" Sure, you could use an intake if you're going to fab up your own intercooler piping, etc. The AEM pipe works just fine for that...

You should read up on what you're planning on doing, so you know what to expect and how to deal with any problems that will come up.

If you're going to run stock internals, I wouldn't boost over 10-12 psi, for reliability. 8 would be just dandy.

If you want to run more boost, find a B18 block and sleeve it, and run forged pistons/rods.
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Old Aug 5, 2005 | 05:00 PM
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJ1 wilcox &raquo;</TD></TR><TR><TD CLASS="quote">

a b16 at 10psi in a CRX would be a fun car. </TD></TR></TABLE>

You got that right
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Old Aug 5, 2005 | 05:15 PM
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Default Re: (red_crx)

i know a guy who has a fully built h22 that should be at 3 bar by the time he is finished tuning it, at the moment he is making 450 to the wheels at 1 bar. so you really shouldnt say 30 psi is too much on a honda.

now for the guy that originally posted, i would really read up on forced induction, to run 30 psi you would need alot just into the bottom end, not to mention all the work you need into the topend. in other words unless you want to spend a ton of money i wouldnt bother trying to get that much psi into the motor. i would just run forged internals, a good set of cams, springs and retainers, and possibly a 3 angle and valves if you really want to get into it. theres alot of power to be made with turbo 4 bangers but theres also alot of money to be dumped into it. and tuning is your main key for turbos.

ill just put it this way, my buddy with the fully built h22 has 30 grand just into the motor, thats not including his fully custom turbo set up. and if you really want to learn something then go to homemadeturbo.com. but trust me dont go in there and ask a noob question like you did on here or those guys will eat you up. just search around that site for a while.

sorry for the long post.
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Old Aug 5, 2005 | 07:02 PM
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Default Re: (boosted_hatch_216)

why? are you trying to get to 1000 hp?
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Old Aug 6, 2005 | 02:15 PM
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Default Re: (djsire)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djsire &raquo;</TD></TR><TR><TD CLASS="quote">why? are you trying to get to 1000 hp?</TD></TR></TABLE>

who?
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Old Aug 6, 2005 | 02:59 PM
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Default Re: The effect of high boost (psi) on a motor?? (8.6secondCRX)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 8.6secondCRX &raquo;</TD></TR><TR><TD CLASS="quote">okay, i have a 92 CRXsi with B16. If i get a Stage 3 turbo with everything i need (downpipe, manifolds, gaskets, intercooler, wastegate, intake etc.) and i run that turbo at 18-30psi, at this high of a pressure, will it cause parts (any parts) in my car to wear out faster, even if they are upgraded parts..

or should i just run it at a lower PSI.. say like 8-10lbs... </TD></TR></TABLE>

If you do run 30 PSI on stock internals and no management, your block would blow in the first two pulls.

Even if you are only running 6-8 PSI, you still need fuel management. If you don't your block will blow due to running very lean fuel maps.

A b16 alone in a crx would have you running mid-high 14s in the quarter, with boost its going to be damn quick. I personally wouldn't go higher than 10 on stock internals.

A friend of mine is going to be running 20 PSI on his 2000 EX, and he just dropped around $4,000 doing internal work and fuel management.

Good luck.

p.s. b16's have high compression, hence they don't like boost that much. I would personally go for the b18 for high boost, but I have seen b16's around with a little boost.
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Old Aug 6, 2005 | 04:51 PM
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Default Re: The effect of high boost (31flavorscivic)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueShadow &raquo;</TD></TR><TR><TD CLASS="quote">built block = $2900-$3500 (not counting the cost of the block)
built head = $1500-$2000 (not counting the cost of the head)
turbo setup = $3500-$5000
misc stuff = $1000-$2000

But before you even get into turboin'g your car I think you need to hang around the forced induction forum for a while. </TD></TR></TABLE>

and then another $2000 for engine management
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