My C38-61 Rotrex EG Build

140553 Views 360 Replies 79 Participants Last post by StErN, Jan 22, 2017

StErN

Discussion Starter · Mar 25, 2011 (Edited)

3

I've been contemplating on doing a Rotrex SC setup for quite some time and decided to go with it a few months back. I did a lot of research and compressor calculations to figure out what setup to go with and what would work for my goals.

Previous build threads
Swap Progress Thread
Build Thread 2

Basic setup will be as follows:

Refreshed K20A Euro R Motor (stock)
Kraftwerks C38-61 kit with 100mm pulley (for now)
DTR/SSR 4-2-1 Header
3" stainless exhaust with Vibrant Res and Burns Stainless muffler with turndown (new)
Vibrant intercooler core with custom endtanks
ID1000cc Injectors
Tial Q BOV

Few pics of the car before tear down

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1 - 20 of 361 Posts

StErN

Discussion Starter · #2 · Mar 25, 2011

6

Re: My Kraftwerks C38-61 Rotrex Setup

I've always wanted a Burns Muffler with a turndown and finally was able to talk myself into it. Previous exhaust was a 2.5" RSR ExMag GT2 (4 sale BTW haha).

I got the exhaust fab'd up a few weeks back with the help of my buddy Matt from Frank's Auto. Exhaust was made from stainless 3" U-bends and straights using v-bands for quick install and disconnect. I wanted to get a megaphone with a v-band for the header collector but that will have to come at another time.

Matt working his TIG magic

Final fit up before turn down was added

Turndown on

Finished product

More pics to come later...

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ImportRacer2123

· #3 · Mar 25, 2011

Sick I want a sc sooooo bad!

Axix23

· #4 · Mar 25, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

thats beautiful exhaust man. Where did you get that made from?

ImportRacer2123

· #5 · Mar 25, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

Axix23 said:
thats beautiful exhaust man. Where did you get that made from?

StErN said:
I got the exhaust fab'd up a few weeks back with the help of my buddy Matt from Frank's Auto. Exhaust was made from stainless 3" U-bends and straights using v-bands for quick install and disconnect. I wanted to get a megaphone with a v-band for the header collector but that will have to come at another time.

If you looked a little bit closer you would see he is in Utah. so im going to go out on a limb and say he got it made in Utah dummy.

StErN

Discussion Starter · #6 · Mar 25, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

ImportRacer2123 said:
Sick I want a sc sooooo bad!

Get one!! Should be pretty fun when its all finished. :driving:

Axix23 said:
thats beautiful exhaust man. Where did you get that made from?

Thanks

Hazeburner

· #7 · Mar 25, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

i wanna hear it rip

rbsjnh

· #8 · Mar 25, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

glad to see you back stern, it has been awhile

SiFlyGuy

· #9 · Mar 25, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

This thing should be able to crush pink cookies, big foots, and wookies. :hammer:

EG6VtecR

· #10 · Mar 25, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

That's a sexy exhaust.
In noice for some kind of noise evidence. Did anyone say youtube

Rotrex should make her blazing fast & more fun to drive.
:up:

StErN

Discussion Starter · #11 · Mar 25, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

Hazeburner said:
i wanna hear it rip

Soon enough :wink:

rbsjnh said:
glad to see you back stern, it has been awhile

Yeah been out for a while doing the house purchase thing and stuff.. Time to get back in to the Honda scene.

SiFlyGuy said:
This thing should be able to crush pink cookies, big foots, and wookies. :hammer:

Time to boost it to the moon... Does this mean I can't use my "NA Is Best" sticker anymore :silly:

EG6VtecR said:
That's a sexy exhaust.
In noice for some kind of noise evidence. Did anyone say youtube

Rotrex should make her blazing fast & more fun to drive.
:up:

Will post on YouTube for sure :up:

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EG6VtecR

· #12 · Mar 25, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

StErN said:
Soon enough :wink:

Yeah been out for a while doing the house purchase thing and stuff.. Time to get back in to the Honda scene.

Time to boost it to the moon... Does this mean I can't use my "NA Is Best" sticker anymore :silly:

Will post on YouTube for sure :up:

I'm on the same boat c38-71 going in so we gotta come up with a new slogan / sticker

Maybe " NA Improved " since the rotrex produces a power band similar to NA.

importdpsonline

· #13 · Mar 26, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

Looking good man! Can't wait to see the fab work of the intercooler piping and your rotrex mounted next.

Thanks again for the purchase on the kit.

Import DPS

Axix23

· #14 · Mar 26, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

ImportRacer2123 said:
If you looked a little bit closer you would see he is in Utah. so im going to go out on a limb and say he got it made in Utah dummy.

stop hatin' b/c you got 1 of the slowest k cars around..

StErN

Discussion Starter · #15 · Mar 27, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

EG6VtecR said:
I'm on the same boat c38-71 going in so we gotta come up with a new slogan / sticker

Maybe " NA Improved " since the rotrex produces a power band similar to NA.

Yeah something clever like that would be sweet.

importdpsonline said:
Looking good man! Can't wait to see the fab work of the intercooler piping and your rotrex mounted next.

Thanks again for the purchase on the kit.

Import DPS

Got most of the intercooler stuff done yesterday I will post all the pics I have so far once I get them uploaded.

Thanks again for all the help in getting this kit. :up:

StErN

Discussion Starter · #16 · Mar 27, 2011

5

Re: My Kraftwerks C38-61 Rotrex Setup

A few new goodies I've been collecting over the past few weeks.

C38-61 boost maker

Vibrant IC core 22" x 9" x 3.25"

ID1000s

Tial Q BOV

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EG6VtecR

· #17 · Mar 28, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

Mr. NA was best

Where did you order the Vibrant IC core 22" x 9" x 3.25" ?

You Got some quality parts lined up :up:

StErN

Discussion Starter · #18 · Mar 28, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

EG6VtecR said:
Mr. NA was best

Where did you order the Vibrant IC core 22" x 9" x 3.25" ?

You Got some quality parts lined up :up:

Believe it or not I got the core off Amazon.com. I've actually found all sorts of random car parts on there and you can't beat the shipping or the price. :up:

StErN

Discussion Starter · #19 · Mar 29, 2011

11

Re: My Kraftwerks C38-61 Rotrex Setup

Alright got some updates... :dance:

Worked quite a few hours over the weekend getting some stuff done. Not quite finished but getting closer. Like to thank my buddy Matt for his welding help and letting me use his shop and my younger brother for letting me steal his radiator until I can get a replacement. :silly:

Got the SC bolted up... One complaint I have is the tolerances on the KW bracket weren't all that great so I had trouble lining up the holes. Otherwise it goes on fairly quickly.

Under side shot. Clearance is surprisingly good with the K-Tuned traction bar even at the middle setting.

We fab'd up the endtanks and piping. It went fairly smooth. I did some flow tests in SolidWorks to test out optimal flow and based the end tanks off my results. They didn't turn out exactly how I had planned but for first time end tanks I think we did pretty good.

The SC to IC pipe was a huge PITA and took us a good while to figure out.

And the finished product!

I still need to clean up all the scuffs and dirt but it turned out pretty decent.

The dirty girl..

More to come... :dude:

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ekjdmh22

· #20 · Mar 29, 2011

Re: My Kraftwerks C38-61 Rotrex Setup

was wondering why your charger is sticking straight forward i thought they were placed pointing up

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