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View Full Version : JRSC rsx supercharger on Ep3



sir_2002
03-07-2012, 12:32 PM
****PAGE 2 for install PICS ************


hello guys i did my research but didn't come up with the info i'm looking for

I know rsx s/c is bolting on good only need cutting on the rad support but that dosen't matter's.
But i don't know anything about belt lenght and for the autotentioner if its fitting or not what is require to make it fit ?


The reason why i don't want to use ep3 specific blower is that i cannot aftercool it...

MugenReplica
03-10-2012, 01:29 PM
I have a 62.2" Napa belt on my 3.4" DC5 JRSC at the moment with a Joe McCarthy IPS auto tensioner and a2 crank pulley. Fits perfect!

*Oh, and if you go with a 3.2"or 3.0" blower pulley, you won't even need to notch your radiator support.

freeme62410
03-28-2012, 04:11 PM
So can you do this in reverse? An ep3 blower on a dc5 engine?

sir_2002
04-02-2012, 02:53 PM
it will bolt on but i'm not sur about the powersteering of the DC5

Kerby
04-02-2012, 04:35 PM
So can you do this in reverse? An ep3 blower on a dc5 engine?

I guess, but why? The dc5 manifold is more efficient than the ep3 and with the dc5 manifold you can run an after cooler with. And if you haven't been following along on clubrsx or k20a, there are kits popping up to replace the m62 with either a twins screw or a m90x.

15000rpms
04-03-2012, 06:17 AM
I guess, but why? The dc5 manifold is more efficient than the ep3 and with the dc5 manifold you can run an after cooler with. And if you haven't been following along on clubrsx or k20a, there are kits popping up to replace the m62 with either a twins screw or a m90x.

:tehehyper::mbiggrin:

I remember the member "hati" ran around 11s with nos. That twin screw problably get the ep3 in the 10s.

differentK
04-03-2012, 07:17 AM
it will bolt on but i'm not sur about the powersteering of the DC5

lucky you have EPS then...

sir_2002
04-03-2012, 01:07 PM
Ho wow... i forgot that lol

It will bolt on sooo

freeme62410
04-03-2012, 03:35 PM
Because I already have the ep3 SC'er and i'm swapping soon :D
I guess, but why? The dc5 manifold is more efficient than the ep3 and with the dc5 manifold you can run an after cooler with. And if you haven't been following along on clubrsx or k20a, there are kits popping up to replace the m62 with either a twins screw or a m90x.

Kerby
04-03-2012, 04:41 PM
Ahh, i see. Your question makes sense now. You planning using the accord crank pulley too?

freeme62410
04-04-2012, 05:18 AM
Hmm I hadn't thought about it but if it gives me more boost, I ought to. For some reason i'm only getting about 6 lbs now with 4 in pulley.
Ahh, i see. Your question makes sense now. You planning using the accord crank pulley too?

sir_2002
04-04-2012, 01:52 PM
i'm wondering what boost i'll have with my k20a type r with the 4in pulley ?

differentK
04-04-2012, 02:01 PM
you will have to check the crank pulley size on the jdm k20a- i think they are the smallest of all the kmotors- im guessing 7-8psi on the 4in pulley

MugenReplica
04-04-2012, 02:06 PM
you will have to check the crank pulley size on the jdm k20a- i think they are the smallest of all the kmotors- im guessing 7-8psi on the 4in pulley

Yup, smallest and lightest. Up your boost by adding the skeletor crank pulley. By changing your crank pulley instead of your blower pulley, you limit how fast you turn your blower. I also would think even with the added boost you may gain a little more throttle control from the larger crank pulley as it won't be quite as rev happy than you would be with the smaller lighter K20a/K20z1 pulley.

sir_2002
04-04-2012, 02:15 PM
4in pulley comes stock with the street kit right ?

And bigger crank pulley means more boost if i have understand? So i am not supposed to be boosting like 5psi if the jdm k20a crank pulley is the smaller

MugenReplica
04-04-2012, 02:54 PM
4in pulley comes stock with the street kit right ?

And bigger crank pulley means more boost if i have understand? So i am not supposed to be boosting like 5psi if the jdm k20a crank pulley is the smaller

4.4" for the JRSC Ep3 Street kit and 4.0" for the RSX Type S Street kit.

Yes, it will give you more boost. Do you have Kpro? With the K20a/K20z1 crank pulley, it'd be more like 2-3psi with the 4.4".

sir_2002
04-04-2012, 04:09 PM
4.4" for the JRSC Ep3 Street kit and 4.0" for the RSX Type S Street kit.

Yes, it will give you more boost. Do you have Kpro? With the K20a/K20z1 crank pulley, it'd be more like 2-3psi with the 4.4".

Off course i have kpro i made 218whp

so i will be boosting 5-6psi with the stock 4in pulley

MugenReplica
04-04-2012, 04:25 PM
Off course i have kpro i made 218whp

so i will be boosting 5-6psi with the stock 4in pulley

No such thing as "stock" when concerning the JRSC. If you are RSX JRSC, then 4.0", if you are Ep3 JRSC (sans Type R) then you are 4.4". If 4.0", then yes.

15000rpms
04-07-2012, 12:35 PM
is a used race supercharger kit usable with stock header and exhaust? Want to pack some punch and keep quiet. Might be thinking about on a k24a1 or 06+tsx a2

sir_2002
04-22-2012, 09:31 PM
With the stock exhaust manifold i don't think it would be a good idea, your going to get poor number...
if you want to stay quiet, maybee you should get a custom exhaust with a good resonator and a good muffler

sir_2002
04-26-2012, 01:24 PM
I don't know if someone can help me out again for pulley / boost

k24 accord crank pulley iforgot i had one in the garage lol.

so k24 crank pulley + stock 4inch pulley what boost will it give?

i'm looking for about 9-10psi

sir_2002
09-19-2012, 11:19 AM
i've finaly receive all my supercharger part
Rsx jrsc
http://imageshack.us/a/img39/9070/dsc0493jj.jpg
MercRacing modular high flow inlet
http://imageshack.us/a/img37/9371/dsc0207kyw.jpg
And finally Merc Racing aftercooler !
http://imageshack.us/a/img24/4291/dsc023850j.jpg

sir_2002
09-20-2012, 07:56 PM
I've encounter some problem with clearence with the rsx jrsc

4inch pulley is too big so i had to cut down some metal
http://imageshack.us/a/img253/4461/dsc001750.jpg
Another problem is the A/C pipe that run to short, i'll have to check what are my option for this..


http://imageshack.us/a/img515/7626/dsc002050.jpg
The bottom a/c line is problematic too, i cannot install the rad because the fan's shroud is touching the line i'll have to bend this one too
http://imageshack.us/a/img4/927/dsc001450.jpg
The rad support have to get some work too

http://imageshack.us/a/img10/4798/dsc0004250.jpg
End results
http://imageshack.us/a/img853/7065/dsc000750.jpg

http://imageshack.us/a/img155/1122/dsc000850.jpg


And this is how she sit's right now
http://imageshack.us/a/img341/4744/dsc002550.jpg

http://imageshack.us/a/img201/5641/dsc002350.jpg

sir_2002
09-24-2012, 09:36 AM
Prettu much done everything only missing the good belt and full the system with prestone and get it tune
There was so many thing to bend to make it fit lol but now eveything is done
Now witht the jdm bumper there no place so i need to cut the lower grill a bit and for the cold air filter i don't know if it will clear
http://imageshack.us/a/img515/4706/dsc0001250.jpg

http://imageshack.us/a/img593/8094/dsc0002250.jpg

this is where i mounted the pump
http://imageshack.us/a/img31/266/dsc0004350.jpg

I like the place where i fitted the remote fill, it look nice in the bay filling a bit the empty tranmission hole
http://imageshack.us/a/img543/9906/dsc0005250.jpg

1GR8EP3
09-26-2012, 06:58 AM
Everything is looking good, nice clean install ... kudos to you man... are you still on the a3??

sir_2002
09-26-2012, 11:00 AM
Everything is looking good, nice clean install ... kudos to you man... are you still on the a3??
Thanks you, i wanted to help other's to know exactly what needed to be done for the dc5 blower and i hope this will help others for the aftercooler setup on the ep

its a k20 type r btw :mangel:

beechstreet
09-26-2012, 11:04 AM
Looks like one helluva tight squeeze, but props on making it work! can't wait for the results. K20A plus aftercooled JRSC = goddamn!

sir_2002
09-26-2012, 11:08 AM
Looks like one helluva tight squeeze, but props on making it work! can't wait for the results. K20A plus aftercooled JRSC = goddamn!

Haha yeah thanks beechstreet :mtongue:

I've put the accord k24a4 crank pulley to, hope i'll be around 9psi with the 4inch blower pulley..

My goal is to get around 33xwhp on that thing :mwink:

sir_2002
09-26-2012, 11:12 AM
Dyno tunning soon too, by the end of the week it will be tune :fingercross:

1GR8EP3
09-27-2012, 06:46 AM
Nice ... after the tune it should put a nice smile on your face haha

sir_2002
09-27-2012, 09:27 AM
I can't denny this :nod:

I finnaly found my belt lenght, going to finish it up tonigh and hopefuly tune it tomorrow

willy_akino
09-29-2012, 02:34 AM
wow everything looks really tight. cant wait to see the numbers. btw don't you have a k20a swap?

sir_2002
09-29-2012, 09:50 AM
Yes here's my engine mod

Dc5 TypeR K20A engine
Dc5 TypeR 6 speed Lsd trany
Dc5 Race supercharge Jackson Racing 4inch pulley
MercRacing custom aftercooler stage 2
MercRacing Modular high flow inlet
Injector dynamics 1000cc
Injen cold air intake
3inch Velocity stack
Engine torque damper
Custom 2 1/2inch exhaust not mendrel bend
Blackworks racing exhaust manifold
Throttle body Hybrid Racing 74mm
Innovative street motor mount
Hybrid Racing Fuel rail
Russel Fuel pressure gauge
Hondata k-pro ecu management
K24a4 crank pulley

Ironstar31
10-02-2012, 11:26 AM
So I also have a K20a Type R but its from the Ep3* Would I have to run an Ep3 JRSC Blower on it or can the Dc5 Blower be used instead?

MugenReplica
10-02-2012, 12:18 PM
My DC5 manifold is still running strong even 5 years later. My only gripe is I didn't go with a 3.2" or smaller pulley from the get go for clearance and power. Just make sure you take your time with the swap and put it together slowly. I helped 2004EP3HATCH and IllDiesel install one into their Ep3s as well. It's a simple swap once you start taking things apart.


You can use the DC5 JRSC manifold on ANY Ep3. You just have to do with a little AC maneuvering and a little clearance issue on any 3.4" or larger pulley. A 62.2" belt will work with a K20a2 crank and 3.4" pulley and a 62" works with the 3.2".

sir_2002
10-03-2012, 10:20 AM
So I also have a K20a Type R but its from the Ep3* Would I have to run an Ep3 JRSC Blower on it or can the Dc5 Blower be used instead?
Make sure you replace your crank pulley for a larger one like the k24a4 accord crank pulley, otherwise you'll be boosting 3-4psi

But yeah you can put the dc5 supercharger in the ep3

yugisama
10-03-2012, 08:54 PM
So how do you bend the AC line to make it fit?

sir_2002
10-04-2012, 07:43 PM
So how do you bend the AC line to make it fit?
I took pic for you yugisama !


I bend the curve more straight to get little bit more lenght here
http://imageshack.us/a/img40/1949/20121004173814.jpg

then i pulled the ac line toward the radiator support to get some clearence from the blower
http://imageshack.us/a/img268/1552/20121004173828.jpg
overal picture here
http://imageshack.us/a/img525/1164/20121004174013.jpg



For the bottom ac line i made work too
Had to make little bracket and bend just a bit the line and everthing is ok
No pics for this sorry.. There not enough space to take pics of what i did

sir_2002
10-04-2012, 07:53 PM
BTW
Dyno tunning tomorrow morning
Video of that beast shortly :mbiggrin:

yugisama
10-05-2012, 03:07 AM
BTW
Dyno tunning tomorrow morning
Video of that beast shortly :mbiggrin:

Awesome. Thanks for the pic.

beechstreet
10-05-2012, 07:25 PM
BTW
Dyno tunning tomorrow morning
Video of that beast shortly :mbiggrin:

:thumbu:

yugisama
10-06-2012, 12:21 AM
update on the video?
:mbiggrin:

EUB44
10-06-2012, 10:19 AM
wonder about the numbers

sir_2002
10-08-2012, 06:59 AM
k24a4 crank pulley, 4inch blower pulley and the aftercooler egual poor 5psi -_-
So i had poor numbers..
Now i'm waiting for my 3inch blower pulley and a re-tune and new 3inch exhaust

yugisama
10-08-2012, 08:56 PM
k24a4 crank pulley, 4inch blower pulley and the aftercooler egual poor 5psi -_-
So i had poor numbers..
Now i'm waiting for my 3inch blower pulley and a re-tune and new 3inch exhaust

so the aftercooler actually make it worst?? or is it just because of the pulley?

1GR8EP3
10-09-2012, 01:35 AM
it was the pulley I dont see the aftercooler being the problem. What are you intake temps looking like now?

sir_2002
10-09-2012, 09:27 AM
Aftercooler create a direct restriction so its normal the boost may be lower

Hondata has made this result
this is the quote with the after the aftercooler has been instale
Knock count has falled drastically; intake air temperature is lower, power has increased, and boost has dropped.

Here's the info on Hondata
http://www.hondata.com/techscintercooler.html

sir_2002
10-09-2012, 09:28 AM
I know that my pulley combo was the problem but i was still dropping boost with the cooler

Anyway i bought a 3inch pulley from pulley boy which is scam cause i got 100$ shipping for a 75$ pulley... Which make no sense to my hope the shipping is fast tho

differentK
10-09-2012, 11:06 AM
have you calculated what your blower speeds are? how much boost do you want to run? the JRSC wants a super tight belt- did you experience any belt slip? i snapped/ over stretched 3 belts on the dyno before it held boost properly.

sir_2002
10-09-2012, 02:40 PM
have you calculated what your blower speeds are? how much boost do you want to run? the JRSC wants a super tight belt- did you experience any belt slip? i snapped/ over stretched 3 belts on the dyno before it held boost properly.

i don't know how to calculate my blower speed ?
I want 9-10 pounds of boost
I didn't heard the belt slipping while i was dynoing but she was not that tight, i could have a better belt

differentK
10-09-2012, 03:37 PM
i don't know how to calculate my blower speed ?
I want 9-10 pounds of boost
I didn't heard the belt slipping while i was dynoing but she was not that tight, i could have a better belt

check out clubrsx's supercharger section- if i remember correctly there is a thread with the calcs for blower speed/ boost comparison. i only mention it because that 3in pulley is pretty small- i run one on my blown k24a2 to pretty much spin the blower up to the max. you have a larger crank pulley and a higher revving k20- you could be lookng at 12-13psi and really overspinning the blower. you wouldnt hear belt slip- it would be most apparent on your dyno sheet. if its really bad you would see it- 2 of my belts walked right off the blower pulley on the dyno.

sir_2002
10-09-2012, 08:06 PM
check out clubrsx's supercharger section- if i remember correctly there is a thread with the calcs for blower speed/ boost comparison. i only mention it because that 3in pulley is pretty small- i run one on my blown k24a2 to pretty much spin the blower up to the max. you have a larger crank pulley and a higher revving k20- you could be lookng at 12-13psi and really overspinning the blower. you wouldnt hear belt slip- it would be most apparent on your dyno sheet. if its really bad you would see it- 2 of my belts walked right off the blower pulley on the dyno.

well..
i'll see what boost i will grab
i didn't want to be again below what i want so to took the 3inch
If i ever boost too much i'll change my crank pulley to the k20a2

sir_2002
10-10-2012, 09:36 AM
This is how actualy it sound at 5psi lol


http://www.youtube.com/watch?v=M5z5miNYRho&feature=channel&list=UL


http://www.youtube.com/watch?v=7rdIBEkPJ9c&feature=channel&list=UL


http://www.youtube.com/watch?v=HC4Ue7KScZo&feature=channel&list=UL


Best video at the end with the down shift omg :mtongue:

http://www.youtube.com/watch?v=WXNHGNX8VFA&feature=g-upl

yugisama
10-10-2012, 09:24 PM
Nice. So you still getting it to boost higher?

lemonhead228
10-11-2012, 10:24 AM
So how much you made at 5 psi on that set up??

sir_2002
10-11-2012, 02:46 PM
So how much you made at 5 psi on that set up??
With that much money spend i'm shy for the number i got lol

I'll post numbers when i'll made some real number

lemonhead228
10-11-2012, 04:53 PM
With that much money spend i'm shy for the number i got lol

I'll post numbers when i'll made some real number

Hahaha I feels you. I'm just curious how much more you'll make when you up the psi.

Are you planning on getting cams?

sir_2002
10-11-2012, 08:03 PM
Not really

After that i'll be done with engine mod
i will have enough horse for lapping and for dily driving

Canuck Civic
10-16-2012, 04:45 PM
check out clubrsx's supercharger section- if i remember correctly there is a thread with the calcs for blower speed/ boost comparison. i only mention it because that 3in pulley is pretty small- i run one on my blown k24a2 to pretty much spin the blower up to the max. you have a larger crank pulley and a higher revving k20- you could be lookng at 12-13psi and really overspinning the blower. you wouldnt hear belt slip- it would be most apparent on your dyno sheet. if its really bad you would see it- 2 of my belts walked right off the blower pulley on the dyno.


here is the link for blower speed calculator
http://willbelayforfood.com/RSX/RSXMainSite/BlowerCalcPage/blowerspeed.htm