Cowl induction for cold, ram air for the Si?

[NitrousG35]

Originally Posted by soxfan143

I couldn't agree more Bill. I'm planning on going with mild boost. I'm torn between Greddy and Comptech. I know I'm more setup already for a supercharger with the mods I already have but I've always wanted a turbo. I just love the sound of the thing spooling up and then releasing. And the way it just sucks you into the seat once the boost builds. I get all giddy like a 10 year old school girl at an Nsync concert whenever I drive my buddies EVO. But I would probably get more power with less money with the Comptech. Plus it would be way more reliable. But what fun is that. lol.

And I don't understand why everyone runs away from the 8th gen either. It has the best base platform of any Civic ever yet there isn't much to choose from. The thing that get's me the most also is the intake situation. These companies just did absolutely no R&D whatsoever when they released these systems. And they have done nothing to change that. But in their defense, when we have a real tuning option these filters on a stick will work well. But also we shouldn't have to spend up towards or well over a grand for engine management just to get our intakes to work properly.

In Japan there is some kind of tax or fine or something for owning any car with a displacement of over 2 liters. So this is why these cars are made at or around 2 liters with Vtec or some type of VVC and with boost. This is why the Type R's and other cars equivilent are so much more available in these countries. And us Americans just wont spend the money on a small displacement high power car. We are addicted to large displacement gas guzzling behemouths like the Mustang and Camaro. They do not think the majority of Americans would buy these over "American Muscle" and they are probably right. The majority of Americans have a phobia against small displacement sports cars. And they know this. Just look at the STi for instance. The JDM version is only 2.0 liters but they increase displacement on the USDM version to 2.5. Why? is there really any need for this? Probably not but they know that some people will buy it over the EVO just because the EVO is still only 2.0 liters and the STi is 2.5. Pretty dumb huh? This is why I think that Honda doesn't want to bring their Type R models over here.

I work in the automotive repair industry and this is what I hear from people when I start talking about my car. I hear this "It's only a 2 liter 4 cylinder, How fast could it possibly be?" And "Why would you spend all that money modding it? It's a Civic." And "Why would you put a supercharger on an economy car?" and my favorite one "Why don't you just buy a Mustang or A car with a V8 and get some real power?" This is the mentality of most Americans when it comes to sports cars. It has to be why they don't bring these cars here.

And what exactly would be the difference between Nitrous and boost? It does the same thing to your motor internally. Boosting mildly and using a 75 shot isn't that much different. You are doing the same basic thing by spraying nitrous and boosting. Both put extra stress on your internals. If you use boost and drive it like a baby it will not do any more harm than an NA setup. And Using nitrous is just as bad as boosting.

Sorry about such a long off topic rant but I had to get this out.

Amen and amen. Preach it brother! As you so aptly said, there is an inherent bias against small displacement motors, hence the proliferation of heavy vehicles with large powerplants. Americans love their torque from a light.

I have faced the bias of owning a Civic Si. When I told people on the G35 forum I belong to, they practically laughed me off the site. They sneered, jeered and mocked. When I showed the times of Imauthentic and James Lewis, they kind of stopped laughing. Still, many Americans pooh-pooh the Civic as a lowly economy car. They are misled.

As for F/I, as you said, S/C or Nitrous puts added stress on the motor. I think what Melomood was talking about was some serious hp from a turbo setup. When we keep things moderate like a Comptech S/C or 75 shot of nitrous, the internal strain is not that severe. The only reason I would spray is because of the cost of the S/C. I am sold on a S/C as I got to drive Sherpa's Habi Comptech S/C FG2. What a rush.

[soxfan143]

The thing is I've owned Mustangs, Camaros, I owned a Accord V6 with a comptech SC and I absolutely have to say that my Si is my favorite out of all of them. My Mustang was Blown with a Vortech SC and every upgrade you could have and my Si is so much more fun to drive. This car was pushing well over 500 hp and it was just a gas whore. I had to sell it because it was just so expensive to run. Plus it was so uncomfortable to drive with the locking rear end. I wish I was making the money I was making in the late 90's so I could do that to my Si. But good old Georgie Bush had to destroy the economy and take about 500 a week out of my pocket. But that's a completely different rant all together.

I'm dying to drive a Comptech SC equipped Si. I need to see if it's worth the 3500 dolars. How's the traction? Will I be able to drive it in the snow? My Accord wasn't that bad to drive in the snow with the SC but that was also an auto and weighed alot more than the Civic. Plus I don't think it was putting out the power I am now even with the Sc on it. Actually it's about the same. But I think my Si would have beaten it.

[Excalibur]

Originally Posted by mattsbobo

^^^^Lets see what happens to the Corvette, Mustang, Camaro, Challenger, and Charger when the government hits the auto industry with that mandatory 35mpg law

Our cars don't get that good of mileage either. I wish the gov would just start using our own oil to keep the supply and demand under control.

[NitrousG35]

Originally Posted by soxfan143

The thing is I've owned Mustangs, Camaros, I owned a Accord V6 with a comptech SC and I absolutely have to say that my Si is my favorite out of all of them. My Mustang was Blown with a Vortech SC and every upgrade you could have and my Si is so much more fun to drive. This car was pushing well over 500 hp and it was just a gas whore. I had to sell it because it was just so expensive to run. Plus it was so uncomfortable to drive with the locking rear end. I wish I was making the money I was making in the late 90's so I could do that to my Si. But good old Georgie Bush had to destroy the economy and take about 500 a week out of my pocket. But that's a completely different rant all together.

I'm dying to drive a Comptech SC equipped Si. I need to see if it's worth the 3500 dolars. How's the traction? Will I be able to drive it in the snow? My Accord wasn't that bad to drive in the snow with the SC but that was also an auto and weighed alot more than the Civic. Plus I don't think it was putting out the power I am now even with the Sc on it. Actually it's about the same. But I think my Si would have beaten it.

Mike this is the car I drove: http://www.8thcivic.com/forums/8th-g...ercharged.html

What can I say? Power is instantaneous down low and in the mid range. VTEC is erotic. Traction seemed to be good, but he was running 225 Falken 615's. As for the snow, we do have traction control. Traction seems more conditional on tires than anything else. I think a good set of snow tires would deal with the additional torque and horsepower.

I am sold on the Comptech. However, my bank account at the moment is not sold on it. Alas, all I can do is dream.

[soxfan143]

I'm in the same boat with the bank account. I would absolutely buy one yesterday if I had the funds.

[Excalibur]

Do people still use the hondata img w/ the comptech s/c?

[mattsbobo]

I've yet to drive a FI vehicle. Like others though, I'd like to have more hp/tq from my Si. From what I know about FI, a sc seems like a more reliable application. I'm going to have this car a long time, and I want it to remain reliable.

What long term issues could come up with having a sc? I know you have to replace the belts every 20K or so. Anything else?

[Excalibur]

Originally Posted by mattsbobo

I've yet to drive a FI vehicle. Like others though, I'd like to have more hp/tq from my Si. From what I know about FI, a sc seems like a more reliable application. I'm going to have this car a long time, and I want it to remain reliable.

What long term issues could come up with having a sc? I know you have to replace the belts every 20K or so. Anything else?

30k miles is what's recommended. I think if you serviced your vehicle like you should, you would be ok. I would change the oil sooner if it were me, swap out the tranny fluid more frequently, and make sure you got a good tune.

[mattsbobo]

Originally Posted by Excalibur

30k ...and make sure you got a good tune.

What better tune could you get? Don't all the sc use a Hondata reflash? Or are you talking about upgrading to something like K Pro when available?

[Excalibur]

Originally Posted by mattsbobo

What better tune could you get? Don't all the sc use a Hondata reflash? Or are you talking about upgrading to something like K Pro when available?

Something better down the line.

[soxfan143]

The comptech SC comes with a Hondata reflash so you wouldn't have to worry about having a good tune. And A sc doesn't really require that much more maintenence than an NA car would. The belt isn't any different than it would be stock. I think it's by far the most reliable FI option out there for our cars. With a good flowing header and exhaust and a good intake you can make almost about 270 whp with the stage 1. Which is extremely impressive if you ask me. And there is no problems with stalling or sputtering and power delivery is instant and linear. What more could you want?

[Excalibur]

Originally Posted by soxfan143

The comptech SC comes with a Hondata reflash so you wouldn't have to worry about having a good tune. And A sc doesn't really require that much more maintenence than an NA car would. The belt isn't any different than it would be stock. I think it's by far the most reliable FI option out there for our cars. With a good flowing header and exhaust and a good intake you can make almost about 270 whp with the stage 1. Which is extremely impressive if you ask me. And there is no problems with stalling or sputtering and power delivery is instant and linear. What more could you want?

You wouldn't tune it later with the solution that hondata's supposed to release? I know with the evo, I would have to take in consideration the season changes as far as temps and the tune that I had. I really doubt those numbers you mentioned as well. I would give you 250whp and that would be about it.

[NitrousG35]

Since I am going to have to fabricate my own X/K intake, can anyone tell me what size tubing I should use to connect the MAF sensor to the air filter? The reason I am asking is that I plan on using the K&N Apollo intake and it comes with 60, 70 and 80 mm adapters.

What would you guys recommend for the coupler? Thanks.

[melomood]

Originally Posted by Excalibur

You wouldn't tune it later with the solution that hondata's supposed to release? I know with the evo, I would have to take in consideration the season changes as far as temps and the tune that I had. I really doubt those numbers you mentioned as well. I would give you 250whp and that would be about it.

i think thats with max racing tunes, your tuner should make a tune thats safe for all year.

[Si Speed 317]

Originally Posted by NitrousG35

Since I am going to have to fabricate my own X/K intake, can anyone tell me what size tubing I should use to connect the MAF sensor to the air filter? The reason I am asking is that I plan on using the K&N Apollo intake and it comes with 60, 70 and 80 mm adapters.

What would you guys recommend for the coupler? Thanks.

The MAF Housing on the Si is 3" so you would need an 80mm adapter.

My next question: Once we have dimensions, would be be able to construct it out of something and fiberglass/CF over it? That would probably be the best bet.

The way I see this working is as follows:

Once we get the proper dimensions, we would need to craft it out of something that is stable enough to sit on its own after molding, and will harden so we can Fiberglass/Carbon Fiber the box together. Then we would need the Cowl piece from Honda(Similar to the one GruppeM has) and create our own hole at the specific location, that way it would be complete bolt-on and removable in case of anything. Then we would need to swap out to a CRV Tube in place of the stock Si Tube, and following that would be the use of the A'PEXi or Fujita filters, the only difference would really be size because the F5 Fujita is decently larger, as shown in some of my previous posts. Other than a few couplers and/or reducer couplers, you have your own Ram Air intake - For the most part.

Of course its easier said than done, however it is definitely plausible, once we have dimensions of the GruppeM Ram Air for the FD2. Give me some feedback

[melomood]

Washable air filter media.
lookie look!!!!!!!!

[Si Speed 317]

^ Filters probably aren't too good but nice find!

[NitrousG35]

Originally Posted by Si Speed 317

The MAF Housing on the Si is 3" so you would need an 80mm adapter.

My next question: Once we have dimensions, would be be able to construct it out of something and fiberglass/CF over it? That would probably be the best bet.

The way I see this working is as follows:

Once we get the proper dimensions, we would need to craft it out of something that is stable enough to sit on its own after molding, and will harden so we can Fiberglass/Carbon Fiber the box together. Then we would need the Cowl piece from Honda(Similar to the one GruppeM has) and create our own hole at the specific location, that way it would be complete bolt-on and removable in case of anything. Then we would need to swap out to a CRV Tube in place of the stock Si Tube, and following that would be the use of the A'PEXi or Fujita filters, the only difference would really be size because the F5 Fujita is decently larger, as shown in some of my previous posts. Other than a few couplers and/or reducer couplers, you have your own Ram Air intake - For the most part.

Of course its easier said than done, however it is definitely plausible, once we have dimensions of the GruppeM Ram Air for the FD2. Give me some feedback

Thanks Dan for the info on the tube diameter. I think I am going to try and take the cheap way and use the K&N Apollo intake that uses a shroud around the filter, so it is enclosed. I will then take some of the tubing and connect to the firewall. This will be my baseline for the time being.