So I was looking around online and I found a site that said of I take out the resonator box that is behind the front bumper and add a short tube downward it will perform the same function as a cuple hundred dollar aftermarke cold air intake. Any thoughts? I did take out the resonator box and it seems to be a little better on performance but I don't know if it really is doing any good.

I guess I could get a high flow filter or something that may help. I'm just trying to save some money here.

A resonator just reduces the sound that the intake makes

It will allow for a little more airflow, but mostly it will just make the intake louder

A nice K&N filter in the OEM filter box will free up a bit of power, but not much

its not going to perform the same. you get what you pay for.

(11-26-2009 01:06 PM)6MTUA5 Wrote:  A resonator just reduces the sound that the intake makes

It will allow for a little more airflow, but mostly it will just make the intake louder

A nice K&N filter in the OEM filter box will free up a bit of power, but not much

It is louder, i noticed that. I guess my train of though let me to believe that drawing the air from other locations rather than inside the engine bay would help.

That all depends on what speed you're at. If you're stopped, a true cold air intake that sits behind the bumper will allow your engine to breathe cooler air than a short ram intake will. But at speed, there is almost no difference in the temperature of the ambient air and the air in the engine bay thus rulling out the effective COLD air intake. However, the performance gains between the SRI and the CAI are where they ultimately differ. On the dyno that is. The SRI will show gains in the higher RPMs than the CAI because the tubing is shorter. The CAI shows gains a little lower in the RPM band. If you're worried about hydrolock, get a SRI. If you're worried about heatsoak, cut a hole in your hood because both intakes run right next to the engine. If you're worried about intake temperatures while driving, get a throttle body spacer and an intake manifold spacer.

I'm not sober...

(11-27-2009 12:06 AM)ThatOneDude Wrote:  That all depends on what speed you're at. If you're stopped, a true cold air intake that sits behind the bumper will allow your engine to breathe cooler air than a short ram intake will. But at speed, there is almost no difference in the temperature of the ambient air and the air in the engine bay thus rulling out the effective COLD air intake. However, the performance gains between the SRI and the CAI are where they ultimately differ. On the dyno that is. The SRI will show gains in the higher RPMs than the CAI because the tubing is shorter. The CAI shows gains a little lower in the RPM band. If you're worried about hydrolock, get a SRI. If you're worried about heatsoak, cut a hole in your hood because both intakes run right next to the engine. If you're worried about intake temperatures while driving, get a throttle body spacer and an intake manifold spacer.

I'm not sober...

That makes sense. I think ill stick with the cold air intake. I don't generally like to have crazy top end. I like to have powerful low end.

I think this is on the same topic so I'll ask it: I found a larger throttle body online 70mm. What performance gains (if any) would this have if i bought one and installed it? It was a skunk 2, 70 mm throttle body.

(11-27-2009 11:21 AM)cburns369 Wrote:  That makes sense. I think ill stick with the cold air intake. I don't generally like to have crazy top end. I like to have powerful low end.

I think this is on the same topic so I'll ask it: I found a larger throttle body online 70mm. What performance gains (if any) would this have if i bought one and installed it? It was a skunk 2, 70 mm throttle body.

smart move! what cold air intake you currently have?

The CAI (filter) for an Accord sits by the engine?

Mines right behind where a foglight would be.

A cai for the accord sits directly where the resonator box sits. in all actuallitly, the stock system is cold air, however is majorly restricted due to the tubing etc to reduce the loudness. the larger throttlebottle will help you bring in more air yes, however you have stock exhaust, so you cant get as much out. therefore it will help a little bit at best, what are your goals? just simple small things to gain a little power or what? tell me this and i can give you the best way to do it. The best thing i heard so far is a k&n filter that goes in your stock air box

(11-28-2009 04:31 PM)archibaldballer Wrote:  A cai for the accord sits directly where the resonator box sits. in all actuallitly, the stock system is cold air, however is majorly restricted due to the tubing etc to reduce the loudness. the larger throttlebottle will help you bring in more air yes, however you have stock exhaust, so you cant get as much out. therefore it will help a little bit at best, what are your goals? just simple small things to gain a little power or what? tell me this and i can give you the best way to do it. The best thing i heard so far is a k&n filter that goes in your stock air box

So for now my goal is just to get power gains to where i have the power if i need it. I don't drive around flooring it all the time, i just like to be able to use the power if the situation calls for it. The plan will be to upgrade the intake, exhaust, and get some type of aftermarket management system (maybe flash tune or something). Money is quite tight right now so i have to do it all in parts. I was trying to look into a whole new intake manifold but i can't find an good one anywhere online for the 99 accord. F23A1 engine.

Can anyone offer throughts for which size throttle body to get? they have 60, 66, 68, and 70mm.
Here is the site i found the throttle body on. (page 2)
http://streetrays.com/store/index.php?ta...ory_id=891

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O yeah, the final plan is to have a fun daily driver car with a nice low end and low/mid range. I'm not so worried about high end simply because i dont need to go super fast. I would rather be able to tear off the line hard.

OK
so, you say you want lo end huh?!!!
Well then, intake, exhaust will help you in top end, and will decrease you in low end
You have a honda my friend!!! high revvnig motors
While honda engines are actually built for torque(most people dont know that) they are very weak in low end.
As far as you "ENGINE MANAGEMENT" no. you dont need it, it will do you no good, espacially with bolt ons. MAYBE 10 horse max, with bolt ons and dyno tune, however thats about a grand spend. i would have to say your best bet for low end grunt would be turbo, expensive, yes, but get s the job done. all bolt ons-etc will increase top end, now if you dont mind stayin in first gear till v-tec kicks in, then i would advise adding bolt ons, manifold and throttle body, that will net you a very nice increase in the top end!!

Stock numbers for your engine
CR of 9.3:1
Hp-150 at 5700
Tq-152 at 4900
Both of these peak as you can see pretty high in the rpm range for your engine, you have low compression which makes a bolt on kit(turbo) an easy add. no block work required. You could boost about 8-9 psi and still retain daily drivability. add about 75 horse, and most important, significanly increase low end grunt. Of course add the turbo sound and bov.
With most turbo systems, to fabricate one takes alot of down time, needing to tune correctly add injectors, and ecu, however they make complete bolt on kits that include all of this for about a 4-6 hour down time.

http://www.customcarscentral.com/trb1511...8-02-.html
maybe a little expensive, but has everything

http://www.slowboyracing.com/product.php?productid=2322
http://filebox.vt.edu/users/jmin/dyno/MVI_0817.AVI
the last is a video of an accord with a turbo. running 9 psi, on a fully stock block and head. However he uses aem management, and good step when turbo, however not needed, also at a cost of about a grand

Wow, that's a hell of a bit of info! Though a turbo is out of the question for a long while. I have zero money
So I think for now I'll do simple bolt on mods. Maybe focus on mods that don't require lots of money. But i will keep this in mind! Thanks bud!

What would happen if someone were to remove all tubing from throttle body and put a filter right on the intake? Any ideas?

Hahahah
funny you should ask
when someone stole my cold air setup and speakers etc...bad morning
All i had was an old filter. So i put that on for a couple of days till i could get payed to get some tubing, it increased my low rpm response
However it was directly next to the engine, cant imagine how hot the air was going into the combustion chamber!!!

And yes, simple mods i/h/e will net you a very happy change, even do a high flow cat, or no cat, but that will be very loud.

(12-06-2009 09:25 PM)archibaldballer Wrote:  Hahahah
funny you should ask
when someone stole my cold air setup and speakers etc...bad morning
All i had was an old filter. So i put that on for a couple of days till i could get payed to get some tubing, it increased my low rpm response
However it was directly next to the engine, cant imagine how hot the air was going into the combustion chamber!!!

And yes, simple mods i/h/e will net you a very happy change, even do a high flow cat, or no cat, but that will be very loud.

That sucks that they jacked your stereo and stuff. But thats funny that you just ran a filter straight into the engine. Just for shits and giggles i might try that and use the piping i have to direct the cold outside air to the filter. Just to see if i notice any difference. You say it gave you low rpm response which i really how i like my engine to run. Idk maybe I'll try it when i get some free time.

I'm guessing you got a new system on your ride now?

Yeah, i have a cai, which i need to change due to winter time!
utah is no joke when it comes to that. but chea, its a honda, MY first car, so experiment i shall!!!