#4456197 - 01/25/10 10:40 AM
Willie Mack's "LT-8448 Build"
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Willie Mack
Newbie
Registered: 01/23/09
Posts: 9
Loc: North Carolina
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Here's is my feable atempt at a build thread.
Hope you like it and give feed back.
Car:
2008 Honda Civic Si Mugen
Interior:
None. And I might just leave it that way.
Exterior
35% Infinity Reflective Tint
I like the wing, the aero and the color.
Stiff Stuff
18x7.5 16 lbs. Mugen Forged GP(Came with the car)
Mugen Sport Suspension (Came with the car)
Engine:
X-Intake
P2R Throttle Body Spacer and Gasket.
High Flow Cat Converter
Meganb Short Header
PT 525cc Injectors
Hondata Flashpro
The Mugen Sport Exhaust is pretty good for now. I have to wait until I get my future mods before I decide to change it.
I.C.E:
None
Wanted:
CT-E Stage 2+ Supercharger
Custom Fabricated Aftercooler (I found a guy who makes them)
Possible PWJDM Power Chamber Intake
TSX or HFP Brake Upgrade
Oil Catch Can
Mishimoto Radiator and Hoses
Mugen RR Door Seals
Hondata or P2R Intake Manifold Gasket
Props:
JAE86 - For hooking up the MAF.
My Roommate - For his Superior Tint and Vinyl skills.
My Team - for the wrench time help, support and ideals.
Ron - For letting me use his shop
DEC 26
24 Hours After this Picture was taken, I drove 1100 Miles back to N.C
DEC 28
And the end product of the trip...
After being awake for a 25 hour drive (Thanks I-64), the first thing I did was wash her.Then it was off to the shop for some mods.
First thing I did was get rid of the stock intake. I also deleted the vacume hose to the valves and the air assist bypass valve.
I replaced the hoses with breather filters.
My homie from Kentuky, JAE86 cut the maf housing for me from and old box he had...
and I modified the vanes by filing them down so the MAF Sensor can read more air and adjust the fuel accordingly.
A simple 3 inch elbow we had laying around the shop is what I used. Notice the tube has no inlets for the vacume hoses. A theory I had about this is that with no hoses diverting the air charge, more of it can go into the manifold. I have the math behind this if you care to get schooled.
A matching steel mesh filter is what I added. I'm a lil OCD when it comes to like products.
While I was in there, I decided to add the Throttle Body Spacer into the mix.
Don't judge me. There are supposed to be two gaskets. I had to leave one of the gaskets on the old car to keep it running.
A Throttle Body Coolant Bypass was the next order of business. This keeps the hot coolant from circulating around the throttle body. It's supposed to keep your throttle plant from getting frozen and stuck. But honestly, it doesn't get that cold in my neck of the woods. So all it does is heat up your charge air. All I did was use a piece of vacume hose and connected it from the coolant sending, to the return. Simple enough.
And the block off of the throttle body nipples.
So after everything was installed...
I decided to make the most important mod. The "While the ECU resets Cheeseburger Mod" Gauranteed Horse Power across the RPM Range.
After rolling for about a day with people wreckless eyeballing me, I talked my Roommate into tinting my windows. Laser cut precision tint FTW.
He also talked Zack into helping him (We all work together so it's cool)
Notice how the bay light reflects of the passenger window. 35% Infinity Reflective Tint. After the curing process, the tint becomes like reflective smoke. Since it's cold, it's gonna take a while to cure. But it's worth the wait.
Here's a shot from outside. I don't know if you can see it, but the curing process has left a bunch of tint solution residue.
All that will go away as the tint dries. It just a long process because it gets so cold at my house that the residue freezes over night. It's going to take a while before it's safe for me to roll my windows down.
Not bad for a days work, and two days of owning the car. Stay tuned for updates as they come. 
DEC 29
After we closed my Roommate decided to do my headlight overlays.
Mercadees Sky Blue is the color of choice. This is the same blue that comes factory on the Mercadees windows.
The passenger side.
Driver Side
 [/URL]
and DONE! Who's the MAN!!
I was a lil uneasy about how they looked. but I like them.
Jan 5th
A fine officer of the law pulled me today. He told me if I had a Bimmer or an e-class he would have let me slide. But he knew civics don't come with blue lights. 3 days to fix it or pay.
The removal
Finished Product
Jan 9th
!!!! I apologize. I lost most of the picks from the install. I'll try to explain in words. I ordered th High Flow Cat the night of DEC 30. It came in Jan 8th. The night of the night, I decided to install. The stock cat was removed and put to scale for shits and giggles. The Stock Cat tipped at 15.4 LBS. The HFC tipped at 6.2 LBS. That's what I call wieght reduction. Well, during the install, we noticed on of the spring bolts was bent. While putting it back , it snapped. After 4 hours of trial and error rying to take it out, it finally came out. I used a sring bolt from the axel back as a temp replacement and when I got home I put an extra spring bolt back in the axel back. But here's a shot installed.
OK!!!!!! I found a few crappy pics from my cell.
After running some math sims at home, i have come to the conclusion that the Civic Si HFC is a percentage based mod that provides increases throughout the power band. I stillhave a few more test to run before I can give a definate answer as to rather or not the percentage can be negatively over powered with an increase in more powerful mods. As of now, it's running smoothy but a little lean. That will be taken care of this spring with a tuning solution. All in all, it was a good night for a good mod.
Jan 16
After brainstorming a little about the Car's air flow, I decided to remove the Air Assist Bypass Valve. This after coming to the concluion that this basically serves the purpose of atomizing the fuel as it leaves the injectors. All this does it when the car runs rich, this is a leaning out process. It basically hapens when the car is cold. At 120 degrees, the air assit valve closes and opens when the throttle is in it's delay process of opening to help with emissions. As a rulle with me, emission equals less power. So it had to go.
Here's a pic of everything installed. The AAV is on the right with a breather filter on it. It is topped with a PVC hose that leads to a vacuum outlet behind the injectors.
After breaking off the AAV plastic cap, I was able to get to the valve it self and remove it. Notice the coolant in the valve port. thats what closes the valve at operating temps. I also removed the hose.
Here are the two peices that I need to complete the job. A nipple plug and a drain plug.
And the end product.
After this, I found that my cold starts are a little more stable. And as I upgrade my injectors, it's gonna do nothing but level out even more.
Feb 2
Ok. Quit possibly the best mod any car (if applicable). A car specific tuning solution. The Fedex man is my best friend right now.
Hondata Flashpro. Now I can see what's going on in that crazy honda ECU. Oh so sweet.
Played around with a few calibrations just to get the hang of it. And finally, here are some estimated numbers. I say estimated because some fine tuning still needs to be done, and there is no SAE Corrections. When I get some cash, i'll have to put in by the hour. But i'm happy for now.
RED: Stock Calibration as if the engine had never been flashed.
192 HP, 148 TQ
Blue: Basic Hondata Reflash (Sold before flashpro came out).
192 HP, 148 TQ
Green: Due to my unique set up, there is no pre loaded calibration for my mods. I had to go with
one that resembled my set up the closest.
194 HP, 147 TQ
My dumb ass fault for not getting a baseline dyno.
I was a little choppy at low RPM wide open throttle. I registered a few knocks and between 17 and 24% retard. Just a minor fix now with the flashpro. There was a bunch of other stuff going down, but it's too much to explain. Stay Tuned.
Feb 8
In prep for boost, I picked up a set of 525cc Injectors.
The install was customary (super long) We went through two sodering pins. But in the end the job was done. Once installed, I had to tune them in. Not taking anything away from the company, but the numbers they gave weren't working. I was getting bouncy idle and the car would shut off while coasting to a stop. So, I took a weekend and figured out the numbers one at a time. It paid off, the car no longer has the jumpy Idle and it no longer cuts off.
The red is after the install with the factory times and latencies dialed in. That is where I was having issues. After some tuning and a lot of trial and error, I finally got it to where it ran great. Still a teeny tiny tad bit to lean for my liking, but that's an easy fix.
Mar 20
The stock header wasn't doing it. But I still want to be on the right side of the law, so I didn't go with a race header. So I picked up a Megan shroty and coupled it with the HFC I already have installed. If you've ever taken a header of an 8th gen, you already know.
Decided to heat wrap it.
The install went pretty quick. It was a lot faster than I remember. After the burn off, I took it for a spin. I don't know if it's me, but the intake is pretty loud now. Don't ask, I'll just let it roll. As with all mods, som fine tuning is in order. I’m not at the same HP I was before, but that will come with tuning this thing in.
Stay Tuned
May 4th
I decided to use the Passwoed JDM Battery Relocation. It freed up the space behind the head light and gives me options for routing the intake. This is not recommended for Turbo setups because the piping runs right where the battery is relocated to.
While I was in there, I decided to go ahead and use the Napa Radiator Hose. The stock one rubs right up next to the intake piping and throttle body. Heat transfer FTL.
And here's what I ended up with.
At idel, my IATs are about 15 above the outside temps. At WOT they drop to about 77-85 on a 90 degree day. I still have some other planes for the induction, but I just have to finish building it first.
May 5th
Not really needed, but I wanted it. Keeps my laptop from sliding around while I'm datalogging. I just have to watch out for some danger to my manifold while i'm driving. And if I roll with a certain young lady, then the mount folds down to the floor with no seat clearance issues.
May 8th
With the bigger injectors, I decided to match it with a fuel pump that would do the job. So I copped a Walbro 255 I haven't dialed it in yet, but That's what Sundays are for. So I'll be on that for the day.
Some pretty good mods. Not to expesive and they will come in handy in the long run. Catch yall lata,
Stay Tuned.
Edited by Willie Mack (05/09/10 12:37 PM)
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#4635036 - 04/01/10 01:42 AM
Re: Willie Mack's "LT-8448 Build"
[Re: Willie Mack]
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Design
Post Master Supreme
Registered: 12/11/02
Posts: 11569
Loc: The OC
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Interesting choice of mods. The only one I disagreed with was removed courtesy of Mr. Law. 
Overall, nice install log. 
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09 CWP MS3 01 Echo 5MT 00 EBP Si - Sold - Pics89 Camaro - Sold CSI. What's your diversion?
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