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Stage 1 camshaft - What next?

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Old Feb 17, 2014
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Arrow Stage 1 camshaft - What next?

Got my stage 1 cam installed about a month ago. Was very happy with results but now looking for more. Only other mod i have is SRI.

Have a couple questions:
1. Could I use VAFCII to tune myself better for any gains at all?
(Dont have the money for a dyno and tune or kpro)

2. Would it be worth it to get aftermarket header?

3. I know stock downpipe is restrictive. How loud would my car be if I got a ebay downpipe without a cat.. It its too loud, its out of the question

4. Anything else I can do to get more gains from the cam?
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Old Feb 17, 2014
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Re: Stage 1 camshaft - What next?

So I take it you have an EX, then. I'm glad you like the Stage 1 (Crower, right?); I'm looking forward to putting one in someday.

Originally Posted by wagstaff13
1. Could I use VAFCII to tune myself better for any gains at all? (Dont have the money for a dyno and tune or kpro)
IDK, maybe. Here's a reference thread: http://www.superhonda.com/forum/f11/...afc-ii-280825/

Originally Posted by wagstaff13
2. Would it be worth it to get aftermarket header?
It depends on what you consider "worth it." Marginal gains (but a gain is a gain, right?) but a cleaner engine bay and different sound.

Originally Posted by wagstaff13
3. I know stock downpipe is restrictive. How loud would my car be if I got a ebay downpipe without a cat.. It its too loud, its out of the question
Why would you remove the cat?! I wouldn't trust an ebay exhaust, but I'm sure there are plenty of people here who have used and love them.

Originally Posted by wagstaff13
4. Anything else I can do to get more gains from the cam?
Yep. Boost lol. Not too much you can do with a naturally aspirated D17 as far as power gains are concerned. Your cam was the biggest. Throw some nice rims and coilovers in (if that's your thing) and enjoy the ride!
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Old Feb 18, 2014
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Re: Stage 1 camshaft - What next?

You will benefit more from headers since you have the stage 1 cam. The OE headers that are on an ex are actually not that bad as far as being restrictive but a set of long tube headers would help free up more exhaust flow.

If the rest of your exhaust is stock and you have the resonator and muffler it shouldn't be to loud. I have run without a muffler and the car didn't sound to bad. eBay down pipe should be ok but I wouldn't run without a cat. Removing the car will give you practically no gain and its bad for the environment.

Like poopies said, boost! A stage 2 or 3 n/a cam.
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Old Feb 18, 2014
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Re: Stage 1 camshaft - What next?

I do not want to remove the cat. However, my cat is in my downpipe and all aftermarket downpipes (including ebay) removes the cat. I really want to figure something out though since the dp is very restrictive. Is there a reasonably priced downpipe w/ high flow cat?

Also, I have a magnaflow muffler, and dont want to get much louder than it is
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Old Feb 18, 2014
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Re: Stage 1 camshaft - What next?

When you say downpipe, you mean the part under your car, right? Most of them should be of the "catback" design, unless otherwise specified. Catback means the pipe starts AFTER the cat. Here's just one example: http://www.carid.com/2003-honda-civi...-11019191.html
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Old Feb 18, 2014
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Re: Stage 1 camshaft - What next?

Depends what reasonably priced is to you.

Check out Random Technology High Flow cats. I don't think there a bad price.
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Old Feb 18, 2014
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Re: Stage 1 camshaft - What next?

Originally Posted by Poopies
When you say downpipe, you mean the part under your car, right? Most of them should be of the "catback" design, unless otherwise specified. Catback means the pipe starts AFTER the cat. Here's just one example: http://www.carid.com/2003-honda-civi...-11019191.html
Im talking about the part that connects the bottom of the header to the rest of the exhaust. containing the cat on my car

Here is an example of what I would want, if it actually included a cat: http://www.ebay.ca/itm/Stainless-Ste...vxp=mtr&_uhb=1

Last edited by wagstaff13; Feb 18, 2014 at 08:15 PM.
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Old Feb 18, 2014
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Re: Stage 1 camshaft - What next?

Originally Posted by GolNat
Depends what reasonably priced is to you.

Check out Random Technology High Flow cats. I don't think there a bad price.
Are these all replacement cats? the downpipe is whats restrictive not necessarily the cat.
http://www.ebay.ca/itm/Stainless-Ste...vxp=mtr&_uhb=1
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Old Feb 18, 2014
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Re: Stage 1 camshaft - What next?

Ok, we ARE on the same page about the pipe but the new exhaust should connect right to your existing cat. Most AM exhaust systems won't remove the cat for legal (emissions) reasons.
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Old Feb 18, 2014
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Re: Stage 1 camshaft - What next?

Originally Posted by Poopies
Ok, we ARE on the same page about the pipe but the new exhaust should connect right to your existing cat. Most AM exhaust systems won't remove the cat for legal (emissions) reasons.
Lol im not looking for an exhaust. The problem is the downpipe is by far the most restrictive part on our cars. (1.7"). I'm looking to replace that, and leave the rest of the exhaust stock
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Old Feb 19, 2014
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Re: Stage 1 camshaft - What next?

Originally Posted by wagstaff13
Are these all replacement cats? the downpipe is whats restrictive not necessarily the cat.
http://www.ebay.ca/itm/Stainless-Ste...vxp=mtr&_uhb=1
Well since the cat is one peice with the down pipe, they are one in the same. Your down pipe is restrictive, your cat is restrictive, either way the pipe that attaches at the bottom of your headers and runs to the exhaust is restricting your flow. Without a cat you will throw a cel, so you will have to run a de fouler and fool the ECU. Also your engine will not run optimally without a cat. You can either buy a down pipe with not cat. Buy a new cat (down pipe included), or buy a high flow universal cat, an eBay down pipe, cut the eBay down pipe and weld the cat on it.
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Old Feb 26, 2014
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Re: Stage 1 camshaft - What next?

I found this info on another forum.

Hi Bros,

1. For sharing, my reliable setup that manage to yield 158bhp @ crank (cannot rem torque), dynoed at JC Racing in KL. For those going there, you can still retrieve the dynograph in their 1.7l folder, SG no. plate - only 1 car.

2. The main contributing mods to horsepower on my D17 ES1, Manual;

a) Crower Stage 1 for D17A, Titanium valve springs, AEM Cam Sprocket.
b) Ported and polished head, lightly skimmed marginal increase in compression.
c) Aluminium Flywheel (Fidanza, from USA)
d) Top Fuel, Power Chamber intake.
e) Hot bits 4-2-1 extractors.
f) High Flow CAT (with resistor to prevent CEL error)
g) Super Sprint exhaust.
h) Ported throttle body (stock-butterfly remains)

3. Lightly tuned with Unichip Q for safe AFR and advanced ignition for a torquey city drive.

4. Car idles stock, no problems whatsoever, besides the requirements to run 98 octane fuel permanently.

5. This reliable setup, is a combination of a good workshop, tuner and careful selection of compatible parts for the car. (All three were from different sources)

6. Hope this contribution is of use to those in quest of reliable power modifications.

Cheers.
http://www.shc-forum.com/viewtopic.p...7d46a08994a462
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Old Feb 27, 2014
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Re: Stage 1 camshaft - What next?

Jeez, 98 octane? Sounds like a huge pain for that kind of gain...
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Old Mar 5, 2014
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Re: Stage 1 camshaft - What next?

Great news...

Blown head gasket.
So its going back to the shop. Anything else I should get done while the head is off to get more power?
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Old Mar 6, 2014
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Re: Stage 1 camshaft - What next?

I almost said stage 1 cam but then I remembered you have one lol. Definitely get those pistons cleaned up while you're in there!
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Old Mar 7, 2014
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Re: Stage 1 camshaft - What next?

New valve springs and retainers would allow you to run a stage 2 cam, but then you would need engine management and another cam.

While the head is off you could get an angle job done with port and polish.
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Old Mar 14, 2014
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Re: Stage 1 camshaft - What next?

You can upgrade to a y8 intake manifold if you are up for the task.

This guy cut the y8 flange out and weld in a D16V1 flange. In our case we will have to weld in a D17 flange. Then drill a hole for the map sensor and then mount throttle body.

http://www.onecamonly.com/showthread.php?t=4101

I have photo's of my custom D16Y8 Intake Manifold on my build thread.
If you give me your email address i can email you all of my pictures.

I take it that you are good with your hands?...
There is allot of work making it fit. Cutting, drilling, welding etc...

http://www.epcivic.com/index.php?/to...ke-it-fitwork/
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