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#3428676 - 01/27/09 12:55 PM Building my Si. forum
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Okay for the last couple months I have been looking over these forums reading every post about anything, but in the last month nothing has been happening. It's not picking back up so it's time for me to start some questions... First of many.

I'm looking for around 350 - 400 hp.

1st Question - What manifold should I be looking into? I seen SiAdam had a custom one so that didn't help me much, I heard the ramhorn was top of the line.. but I'm not willing to get rid of my a/c (live in arizona, a/c is a must). Inlinepro was good also so that's what I was thinking.

2nd Question - could a journal bearing turbo even put me to my 350 - 400hp goal? (still new to this)

3rd and last question for now - 10 psi or 13 psi spring? I believe siadam boosted to 22 psi off a 13 psi spring so could a 10 psi get up to around 18 - 19?

I am new to this whole scene and I have read FAQ's so don't trash me for being a newb.


Edited by Hobkins (01/27/09 12:56 PM)

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#3429046 - 01/27/09 02:59 PM Re: Building my Si. forum [Re: Hobkins]
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 17970
Loc: West By God Virginia
 Originally Posted By: Hobkins
Okay for the last couple months I have been looking over these forums reading every post about anything, but in the last month nothing has been happening. It's not picking back up so it's time for me to start some questions... First of many.

I'm looking for around 350 - 400 hp.

1st Question - What manifold should I be looking into? I seen SiAdam had a custom one so that didn't help me much, I heard the ramhorn was top of the line.. but I'm not willing to get rid of my a/c (live in arizona, a/c is a must). Inlinepro was good also so that's what I was thinking.

2nd Question - could a journal bearing turbo even put me to my 350 - 400hp goal? (still new to this)

3rd and last question for now - 10 psi or 13 psi spring? I believe siadam boosted to 22 psi off a 13 psi spring so could a 10 psi get up to around 18 - 19?

I am new to this whole scene and I have read FAQ's so don't trash me for being a newb.


Good questions, I'll happily try to answer.

Anything is possible w/bank. So w/that said, what does your budget look like?

1. To keep your a/c you aren't going to be able to run most ramhorn manifolds, so a log is going to be your friend. Inline would probably be your best bet, and will also be a fair amount cheaper than most tubular EL manifolds.

2. Journal or ball bearing does not effect power output, but instead refers to the turbo's reliability and spool up characteristics. I.E. journal bearings are generally cheaper, but typically have a much greater "ramp" rate in regards to spool up as compared to a ball bearing unit that is more smooth. Compare dyno's and you will understand. The trim & wheels of the turbo are where the power is made, not the bearing type.

3. The general rule of thumb is that you can safely double your wastegate spring pressure assuming there are no vacuum/boost leaks present.

Good luck on your project, we will do what we can. Even though I don't have my Si anymore, I still check the forum everyday.
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05 Berlina Black S2000 700whp / 500wtq

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#3429311 - 01/27/09 04:32 PM Re: Building my Si. forum [Re: SiAdam]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
My income is very very small... Luckily parents supporting me lots still so I don't have many bills. I can basically put my whole pay checks towards my car. I recently just got it all payed off and that was my first goal. Now I have around 1100$ saved up now for kit... still gotta get hondata s300, limited slip, and new stage three clutch?

Awesome, the journal bearing and ball bearing explanation helped me alot.. I knew the ball bearing spooled around 1000 - 1500 rpms faster? but glad that I can still get my goal out of a regular journal bearing.

And what clutch would you recommend? Alls I know is I'm going to need a stage 3.

Yea, I was surprised to see you got rid of your si. I heard about you through my brother (previous owner of my car.) He didn't believe me that you did, but how your s2k is turning out looks like a good decision.


Edited by Hobkins (01/27/09 04:36 PM)

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#3430424 - 01/27/09 11:03 PM Re: Building my Si. forum [Re: Hobkins]
jcoosi Offline
Sr Member


Registered: 07/29/05
Posts: 1109
Loc: TN
Clutchmaster or ACT clutches are good choices
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#3430455 - 01/27/09 11:15 PM Re: Building my Si. forum [Re: Hobkins]
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 17970
Loc: West By God Virginia
I think I had a CM Stage 3. I would highly recommend it for anything under 500whp.
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05 Berlina Black S2000 700whp / 500wtq

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#3430577 - 01/28/09 12:13 AM Re: Building my Si. forum [Re: SiAdam]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Alrighty thanks for the advice.
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#3431165 - 01/28/09 10:09 AM Re: Building my Si. forum [Re: Hobkins]
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 17970
Loc: West By God Virginia
 Originally Posted By: Hobkins
Alrighty thanks for the advice.


Found a thread for you.

http://www.honda-tech.com/showthread.php?t=2095625
_________________________
05 Berlina Black S2000 700whp / 500wtq

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#3431432 - 01/28/09 11:39 AM Re: Building my Si. forum [Re: SiAdam]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Well inlinepro has great power reviews with a/c so that's what I'm going to go with, but I can't find them under 300$ ... Ebay gets one every once and awhile but they also still shoot up past 300. Looks like that's what I'm going to have to dish out for one of these.
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#3431930 - 01/28/09 01:53 PM Re: Building my Si. forum [Re: Hobkins]
jcoosi Offline
Sr Member


Registered: 07/29/05
Posts: 1109
Loc: TN
 Originally Posted By: Hobkins
Well inlinepro has great power reviews with a/c so that's what I'm going to go with, but I can't find them under 300$ ... Ebay gets one every once and awhile but they also still shoot up past 300. Looks like that's what I'm going to have to dish out for one of these.


Not surprised the inline pro logs can support 600hp easily.I had one but decided going with a Neukin ram horn set up in the end.

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#3432106 - 01/28/09 02:39 PM Re: Building my Si. forum [Re: jcoosi]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Yea in arizona the ram horn is not an option lol.
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#3432672 - 01/28/09 05:41 PM Re: Building my Si. forum [Re: Hobkins]
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 17970
Loc: West By God Virginia
 Originally Posted By: Hobkins
Yea in arizona the ram horn is not an option lol.


Look @ the thread I posted, they have some ram horns that allow a/c & p/s.
_________________________
05 Berlina Black S2000 700whp / 500wtq

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#3433544 - 01/28/09 09:54 PM Re: Building my Si. forum [Re: SiAdam]
jrsi Offline
Jr Poster


Registered: 05/26/05
Posts: 95
Loc: Arizona, United States
Hobkins build:


Stock B16A2 Block bored .20 over. SRP 9.1:1 Pistons, Eagle H Beam rods. Stock Crank. All seals and gaskets are OEM Honda.

Head was cleaned all new (stock) valves, stock springs. GSR Cams. Haven't purchased Cam Gears yet...

...I think thats pretty much the majority of it. Still haven't touched the tranny
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#3434478 - 01/29/09 09:30 AM Re: Building my Si. forum [Re: jrsi]
jcoosi Offline
Sr Member


Registered: 07/29/05
Posts: 1109
Loc: TN
Really no need for cam gears.I had them on my build and they stayed at 0 setting.Other than that looks good.
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#3435163 - 01/29/09 12:55 PM Re: Building my Si. forum [Re: SiAdam]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
 Originally Posted By: SiAdam
 Originally Posted By: Hobkins
Yea in arizona the ram horn is not an option lol.


Look @ the thread I posted, they have some ram horns that allow a/c & p/s.



Okay I reread through it and click on some links but even those guys that run these ram horn manifolds say that most of the time it's quite a tight fit to keep the a/c and ps. Some even say they are worried about it melting the a/c line. Never the less it can be done and I will consider it.

What I was wondering is if I run a smaller inlinepro manifold vs a ram horn would the ram horn add around 30 hp more? I'm not sure I'm just throwing out a number that I could see being relatively close.


Edited by Hobkins (01/29/09 01:00 PM)

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#3435284 - 01/29/09 01:30 PM Re: Building my Si. forum [Re: Hobkins]
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 17970
Loc: West By God Virginia
 Originally Posted By: Hobkins
 Originally Posted By: SiAdam
 Originally Posted By: Hobkins
Yea in arizona the ram horn is not an option lol.


Look @ the thread I posted, they have some ram horns that allow a/c & p/s.



Okay I reread through it and click on some links but even those guys that run these ram horn manifolds say that most of the time it's quite a tight fit to keep the a/c and ps. Some even say they are worried about it melting the a/c line. Never the less it can be done and I will consider it.

What I was wondering is if I run a smaller inlinepro manifold vs a ram horn would the ram horn add around 30 hp more? I'm not sure I'm just throwing out a number that I could see being relatively close.



Typically you sacrifice a little low end power and spool for more power per lb. of boost as compared to a log manifold.

For your goals, an inline would serve you just fine.

Run a 3" exhaust and other supporting mods and you will do ok.
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05 Berlina Black S2000 700whp / 500wtq

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#3438172 - 01/30/09 12:28 PM Re: Building my Si. forum [Re: SiAdam]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
I'm thinkin that I'm just going to get a used kit ... i don't have money to throw around and if I buy a used set I could just replace certain parts for other parts.

And for the clutch I went on a quick search for them a minute ago and they were going for 500$ on clutchmasters website I'm not complaining lol but I was curious if I should be looking a different place for these clutches? I will do a more extensive search for them after I get off work tonight.


Edited by Hobkins (01/30/09 01:15 PM)

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#3457097 - 02/05/09 10:49 PM Re: Building my Si. forum [Re: Hobkins]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Got a pair of Megan Cam Gears in, but other then that nothing special for me.

Still waiting for that kit to come along my way.

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#3457971 - 02/06/09 10:08 AM Re: Building my Si. forum [Re: Hobkins]
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 17970
Loc: West By God Virginia
 Originally Posted By: Hobkins
Got a pair of Megan Cam Gears in, but other then that nothing special for me.

Still waiting for that kit to come along my way.


Sell the gears, they don't do much unless you are making big power.

I believe I got my clutch a long time ago for cheaper than that...something in the 350-400 range, but I could be wrong.

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05 Berlina Black S2000 700whp / 500wtq

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#3458229 - 02/06/09 11:11 AM Re: Building my Si. forum [Re: SiAdam]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
The gears were not much, not worth to turn around and sell...

I will keep looking for a decent priced stage 3 clutch...

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#3459243 - 02/06/09 04:28 PM Re: Building my Si. forum [Re: Hobkins]
hammeredsi Offline
Jr Poster


Registered: 06/15/05
Posts: 165
Loc: WA
i believe i payed close to $700 for my centerforce dual friction and a new throwout bearing. just a couple words of insight; its better, and usually cheaper, to do things right the first time than to have to do them twice.

cheap, fast, and reliable. you can only have two out of the three

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#3465206 - 02/09/09 12:53 PM Re: Building my Si. forum [Re: hammeredsi]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Well I will prolly end up just ebayin this clutch.. looks like I can pick up a cm stage 3 for about 400 w/ shipping... that's not to bad. i will keep searching.
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#3468351 - 02/10/09 12:34 PM Re: Building my Si. forum [Re: Hobkins]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Now for my ls I'm looking at wavetrac differentials... they are priced at around 750$ ... Curious to know what you guys are running in your setups.. I understand that this piece will be one of the more expensive pieces, I would like to spend less but eh I will get the money one way or another.
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#3471110 - 02/11/09 11:35 AM Re: Building my Si. forum [Re: Hobkins]
jrsi Offline
Jr Poster


Registered: 05/26/05
Posts: 95
Loc: Arizona, United States
Quaife LSD seems to be standard...

People have run OBX LSD's.. I've heard good and bad...
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#3471307 - 02/11/09 12:41 PM Re: Building my Si. forum [Re: jrsi]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
ok the Quaife lsd's were about 100 dollars more then the wavetrac.. not that bad of a difference.
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#3471918 - 02/11/09 03:15 PM Re: Building my Si. forum [Re: Hobkins]
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 17970
Loc: West By God Virginia
Obx is what I used.

They are proven to hold the power. 600whp+ cars run them for years.

I paid $365 for mine a few years back.

_________________________
05 Berlina Black S2000 700whp / 500wtq

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#3474419 - 02/12/09 12:29 PM Re: Building my Si. forum [Re: SiAdam]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
How realiable was that obx lsd for for you? I've read some very very old reviews and people say they are junk... but didn't sound like any of them had any personal experience with them... over the years they could have matured a bit.. but who knows, price is still at around 360$...

Edited by Hobkins (02/12/09 12:37 PM)

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#3474508 - 02/12/09 12:57 PM Re: Building my Si. forum [Re: Hobkins]
hammeredsi Offline
Jr Poster


Registered: 06/15/05
Posts: 165
Loc: WA
have the obx in my si. 365 whp and close to two years without any problems. the first gen obx diffs had problems with not being to remobe the axle once installed so ive heard. heard they shaved down a part of the diff, and the problem has been resolved.
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#3474542 - 02/12/09 01:06 PM Re: Building my Si. forum [Re: hammeredsi]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Alright well it sounds good... I'll try and pick up one of these asap.
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#3474698 - 02/12/09 01:40 PM Re: Building my Si. forum [Re: Hobkins]
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 17970
Loc: West By God Virginia
 Originally Posted By: Hobkins
Alright well it sounds good... I'll try and pick up one of these asap.


ZERO problems. The first gen obx's weren't all that grat, but as long as you buy new, you are set.

My cousin has the Si now and is pushing for 700whp+ and will still be using the obx.
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05 Berlina Black S2000 700whp / 500wtq

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#3474858 - 02/12/09 02:17 PM Re: Building my Si. forum [Re: SiAdam]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Well that sounds much better then a 850$ lsd.... I'm sure it will hold my 300 - 350 whp..
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#3474982 - 02/12/09 03:07 PM Re: Building my Si. forum [Re: Hobkins]
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 17970
Loc: West By God Virginia
 Originally Posted By: Hobkins
Well that sounds much better then a 850$ lsd.... I'm sure it will hold my 300 - 350 whp..


Knowledge is power.
_________________________
05 Berlina Black S2000 700whp / 500wtq

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#3475351 - 02/12/09 05:04 PM Re: Building my Si. forum [Re: Hobkins]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Yes it is.

I'm trying to get some of my pics of my cam gears up before I put em in.


Edited by Hobkins (02/12/09 07:08 PM)

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#3478429 - 02/13/09 04:25 PM Re: Building my Si. forum [Re: Hobkins]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Okay guys, you buy your kits used or new? and what size exhaust did you run? full 2.5" or what?

Edited by Hobkins (02/13/09 04:26 PM)

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#3478774 - 02/13/09 06:52 PM Re: Building my Si. forum [Re: Hobkins]
SiAdam Moderator Offline
Post Master Supreme


Registered: 07/22/01
Posts: 17970
Loc: West By God Virginia
 Originally Posted By: Hobkins
Okay guys, you buy your kits used or new? and what size exhaust did you run? full 2.5" or what?


Most don't buy kits, we piece it together..saves ALOT of money.

As for exhaust...nothing less than 3".
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05 Berlina Black S2000 700whp / 500wtq

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#3478890 - 02/13/09 07:39 PM Re: Building my Si. forum [Re: SiAdam]
Hobkins Offline
Jr Poster


Registered: 01/27/09
Posts: 106
Cheaper to peice it together? SiAdam how much did your turbo, Intercooler, bov, wastegate and piping cost? (I was really going for just the turbo kit itself, nothing else...)

And wow.. full 3" exhaust is a big pipe.. guessing I gotta pick up that soon too.

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