About a year ago I me and a friend were at work and got the crazy idea to bolt an M90 supercharger to my car.

Over the past year I have slowly pieced together and fabricated a few things to make this happen. I just test fitted and bolted everything up this past week and it's coming along nice. I am waiting on my injectors and meth kit and hope to have it on the road for some low boost tuning within the next few weeks.

This is straight mad max style, being this is just a weekend toy and the whole setup will run me less that a $1000.
The car ran 12.9@109 with a stock K20a2 3" intake, DC header, Apexi ws2 and Kpro street tune by me. The addition of the blower should make for a fun ride. Hopefully the meth will keep the IAT's in check.

To save you some bandwith, you can check out my build thread on K20a.org if you like, or I can re-post here if need be.
Project double agent. NA/M90 Supercharged K20 EG Civic - K20A.org .:. The K Series Source . Honda / Acura K20a k24a Engine Forum

 

Update, for those that may be interested and going the M90 route.
First I cut/trimmed and plastidipped the mounting plate.


Next I fabbed up my intake filter idea. It was a great success up until I overdosed on gasket seal. I screwed it all up and will have to start over.
This is the gasket seal aftermath. Messed up my awesome Domo nom nom paint job bad.

Should look something like this when done but cleaned up.

Now I have to do it all over again. It was very time consuming....

I was hoping to have it all together with filter today for some low boost testing without methonal.
I couldn't wait any longer. It works!!! Had some issues with a base map, so I went back to my NA tune and tweaked it.
It is running rich, 11.0-11.5 but it's only making 7.5 #'s at 7500 RPM with the bypass wide open. IAT never got above 126F and it's near 100F ambient right now.
The only issue I have is I believe tip in, which I am unfamiliar with. If I try to punch it it just bogs, but if I roll into it, then mash it it is all good. Might have to do some more reasearch and further my tuning knowledge.

I still have to clean up some things, install meth, rasie boost and maybe a small 35 Shot down the road.

Now for the good stuff
Video is ****, but it's kinda hard to vid and drive sorry, but I wanted to share the fun and excitement of this thing finally in operation. Pulls alright but nothing super fast. Still have a ways to go before I up the boost.
[YOUTUBE]http://www.youtube.com/watch?v=YQF_I...layer_embedded[/YOUTUBE]





[YOUTUBE]http://www.youtube.com/watch?v=bTvYy...hannel&list=UL[/YOUTUBE]

 

This is an abomination lol

 

Why not bottom mount it?

 

More charger piping and mount fabrication. I have limited tools and time. This is so simple and easily back to NA in under 30 min with me working at my normal slow space.
Only have $500 in at as it sits. Meth, MAP sensor and a few odds and ends will put me closer to the $1000 mark.

 

its... different...

that is all.

 

 

I think it's cool. Bump for going the road less traveled. And the sounds is pretty sweet too!

 

Your car looks like it just wants to small children.

 

I made a little progress over the past couple days.

The hood is finished for now, cut, trimmed and hood pinned. Needs to be repainted, but for $50 it will do and keep me from getting tickets.



I appeared to be having some belt slip in the upper RPMs, so I picked up a 5" idler pulley with a slightly longer belt. A whole lot more belt wrap on the blower pulley and so far so good.



My tune is looking good and the car is pulling strong, even with 8-10 degrees timing pulled do to 160-170F intake temps and AFR at a rich 11.4.

The only issue I have is running a filter. My original idea was a failure, not enough surface area. With just a strip of filter element over the mouth of the supercharger it would not boost more than 1.5PSI. It could not breath. Without a filter I was seeing 8PSI at 7500 RPM.
So then I put a strip of metal screen over the SC intake. I am only seeing 7.5 PSI at 8000 RPM, so it too appears to be restricting some flow as well.
I am working on something else right now to give about 3x more surface area. It's straight MacGyverish, but hopefully it will work. If only I had a nice tig welder and some aluminum.

Only other thing left to do is order, install and tune the meth kit. It pulls decent in 90+ degree weather and no meth. I can't wait to see what this thing will do at the track next month in some cool weather.

 

Since there was a break in the rain I decided to test my new filter setup. It works! Boost is linear at aprox 1 psi per 1000 RPM topping out at 8.1 PSI at 8100 RPM.
The intake filter box I made came out decent for what it is. Wish I took pics as I made it, because I'm sure it would be good for some laughs. Some might say ghetto, but I say ingenuity. If I had a nice tig welder and material I could do the same setup in aluminum.

It started out as an orange plastic case for an easy out set I had laying around. I cut it out and painted it black. I picked up a metal mesh trash can from Ross for $3.99. I then cut out a piece to fit in the box.

I then picked up some black silk screen like material from Walmart for a 1$ and layed it over the metal mesh. I figure this will filter out some particles and better than just running the metal mesh. I used some door trim around the edges of the screen and bolted it inside the outer edge of the box. Bolted the box to the SC, closed it up and used a little gasket seal around the edges for good measure.
The finished product.

 

so when you gonna get some dyno numbers brad?

 

It looks absolutely ridiculous...so much so, that I love it. The SC sticking out of the hood looks beastly. In for dyno numbers...

 

that "filter" won't flow worth a ****.. the screen and mesh take up a lot of surface area that normally would be taken up by air...
and without an intercooler of somesort you've basically bolted a heat pump to the motor.

I would atleast look into running a front mount

 

very unique

 

Why you mad? Did you even read the thread???
Don't hate cause its not one of your fantasy builds.

 

Thanks guys!

Never been a fan of dyno #'s, so no plans as of now. Just street/track tune. The track is my dyno and trap speed will show the real power. I have vacation Oct 4-22, so one of those weekends I plan to hit the track and hope for cool weather.

I'm not expecting anything great with only 8psi, but I'm hoping for high 11's to low 12's. For under a $1000 bucks it is a fun setup that is unique and easily removed if need be.
Eventually I will up the boost and throw a small shot if juice on it.

Since you didn't bother to read the first time. I made 8PSI at 7500 without a filter. Now I am making 8.1 PSI at 8100 RPM with the current home made filter. So I'm losing maybe .5 PSI. The car only gets about 200 miles on the street a month. I made due with what I had and it will keep from sucking in bugs, rocks and smaller particles. I'll just change the oil often and it should be fine.

Intake temps as I mentioned are at 160-170F after a WOT pull, and quickly cool to 120-130F cruising. That's with 90 degree ambient temps too and not any worse than a JRSC M62 at the same boost. My tune is pulling 5-10 degrees timing right now because of the higher temps, but once the meth is on IAT won't be a problem.

I will be sure to post some track videos for all the nay sayers. It won't be fast by some peoples definition, but there is always someone faster and I am happy with my cheap toy.

 

About two weeks ago I slung the belt at the top of first gear, while attempting to race my buddies 2010 bolt-on/100shot Mustang GT. Must be in outer space because there were 5 cars behind us and no one saw or found it. Luckily I had a spare at the house.

The car was making a funky noise afterwards and I was getting frustrated. Thought about selling and buying a 350ZHR, but my wife talked to me into keeping the Honda and finishing the SC setup.
So after a two week break and some time apart, me and the civic are back together.
*
The noise turned out to be the alternator. When the belt came off it must have snagged on the alternator and bent the shaft. I picked up a used alternator from a fellow k20a member. I figured a used oem is better than a Autozone re-manufactured. I have been told they are POS.

While waiting on the alternator to be delivered I started hooking up the Cooling mist trunk mount kit. Maybe I'll have it all back together and on the road by the weekend. Also picked up a go pro, so I will be sure to get some vids.

I will say this is a easy to install and remove kit. Would be great for a factory boosted car still under warranty.




Prior to the belt incident I ran into a guy I know with a pretty fast SRT-4. He has a PTE 5831, running on E-85 and traps 120-125 depending on boost settings. Needless to say my 8 PSI with no inter-cooler or meth was not enough. ECU was pulling 10deg timing due to high IAT.

 

10* is a metric crap ton. Get that thing professionally tuned!

 

Yes the car falls off pretty quick once the IAT rises. The tune is good and doing exactly what it should do. I just need get the meth up and running to keep the IAT in check.

 

The new intake setup works great! Making 8.5PSI now at the top of each gear.

The meth is hooked up and working good, except for a leak at the nozzle push connector. Something is up with it. It is hard to get the line back out as well.
Other than cleaning up the wiring and pulling a little fuel it should be ready to make some passes on low boost at the track.

I am running just distilled water at the moment and it seems to be working well. IAT stayed under 115 and she pulls hard all the way to 7500.
Here's a little teaser of a third gear 3000-7500 RPM, 35-80MPH pull. I had to stop at 7500 because my injector duty cycle was close to 85%. The AFR is 11.2-11.4, so once I pull a little fuel I should be good, keeping the injector duty tolerable with just water injection and low boost for now.

Gay *** windows movie maker kept messing the audio up. I had to create a audio file first then overlay it to get it to sync up when I published. PITA
http://www.youtube.com/watch?v=lHQBH...ature=youtu.be

 

I have to say that you are pretty good at making your own stuff and that's a sick way to make good power! What is that 400 more dollars then an eBay turbo kit? So I say you have out smarted the majority of the Honda crowd here, I wouldn't have thought of that. Props

 

Thanks man! It's just a hobby and I do what I can with limited tools. If only I had a nice tig welder.
Speaking of making things here is how I did the new intake. Home depot special.

New bigger volume/surface are intake/filter. Still kinda rigged, but it only cost me $15 and is an improvement over my previous work.

It started as an electrical box.


I had to cut it in half for clearance issues.




Sheet metal backing and mounting brackets.






Still got a good bit of my Ross trashcan mesh.



90% Complete


On the car

 

What belt did you use for this?

 

propppsss....love builds like this..only flaw i see is the hood...the cut looks a lil sloppy..but overall this is a fresh hatch