[sujinX]

man :wow: nice set up! i have been looking at this type of set up for a min. nice job

maybe u should try looking a lil longer then an min... :silly:

500 is definitely doable. im on a 110mm pulley stock rsx-s block, crank pulley, c30 sc, cams, super restrictive exhaust/header and a detune and made 370 whp.

funny how "secret" 500 whp is, but when offered a mag shoot, everything is let out. no pun intended, just seem funni.

 

[ronaldve]

Great job and even better results!

You put my K20Z1 JRSC at 9 psi to shame. And, I throw a 125 shot at it

 

[jon v]

imagine what you would pick up with a quality header...

 

[MaxiMental]

imagine what you would pick up with a quality header...

LOL...i know man, but at the same time I've become strangely attached to my el cheapo DC K-swap header. I guess I like to root for the underdog or something. When I bought it the general belief was this header becomes a bottleneck over 230whp, but I made 280whp with this header and a pretty standard high compression K24 build (just cams and compression...no fancy porting or anything like that). Then to see a stock K24 block (with S2 cams) put up 412whp with this header and the Kraftwerks kit really made me start to question just how big a bottleneck this header really is. It's definitely not as pretty as a longtube header with a high quality collector, but the darn thing seems to work pretty well! But in all likelihood I will end my 4 year romance with the DC header and get something higher end, if for no other reason then to satisfy my own curiosity. Will probably go Hytech or SSR, I guess (unless you guys have a better idea for a setup like mine?).

 

[k20spooner]

Wow this car is sick. Loi isnt running the Kraftwerks blower til next year now...
btw, I think Im gonna turbo, ill sell you my SSR 421 and tell Nate I said hi!
Rhett(not the car)

 

[MaxiMental]

Wait what? Loi isn't running his Kraftwerks setup for the Redline and Super Lap Battle finals coming up? Man, going to have to e-mail him to find out what the deal is with that. Maybe he's still waiting on that custom radiator/oil cooler setup or something.

I posted a pretty detailed story about the install on my new website. Check it out if you get the chance:

http://www.tune2win.com/index.php/d...index.php/dyno_tests/project_eg_kraftwerks_k-series_race_kit_install_dyno_test/

There's a link to K20a.org in the story, so hopefully Nikos will be cool with it

And Rhett-dude, if you're serious about selling your SSR 421, lemme know!

 

[N_V'DTEGGY89]

Nice write up on site:up:
Very informative about your build and also some background info on the Supercharger....so from what i read it seems safe to say that these superchargers are more for track cars as oppose to 1/4 mile or street cars

 

[MaxiMental]

Personally I think a Rotrex blower is perfect for the street, since you can tune it very much like a normally aspirated motor and will therefore get great fuel economy (compared to a turbo setup) while still having tons of power on tap whenever you need/want it. With the Rotrex you've also got a cooler running system with less under-hood heat issues so no worries about nuts/bolts backing off like I've often seen on turbo cars, and because it's belt-driven there's no chance a Rotrex will over-boost the engine the way a turbo setup can if the boost controller or wastegate fail.

I can't really speak to 1/4 mile since I'm not a drag racer, but I will take my EG to the drag strip in the spring to see how she goes down the 1320. My 60-ft times will probably suck, but the MPH should tell us a lot about how good this setup is for the strip. With drag slicks and a good driver, she's gotta run in the 11's, I would think? Hope my driveshafts and clutch can take it

Anyway, I don't see any reason why a Rotrex setup wouldn't work well for any type of motorsport as well as being a very good option for a street car. Heck, the Hondata landspeed car runs Rotrex blowers (two of them) and that's the ultimate drag race I'm not slagging on turbos and I've driven some turbo cars that were truly awesome with respect to power delivery, but if you're the kind of driver who likes a more linear progression of power and likes a lower heat, lower stress setup then I think a Rotrex is something you need to look closely at. Ultimately you can make more power with a big turbo setup and have more area-under-the-curve because you can spool up the turbo sooner than you can with a belt-driven supercharger, but you've also got to consider the downside to turbo setups (which I've outlined above). A well sorted turbo setup can overcome a lot of these issues, but ultimately high under-hood heat does cause some unavoidable issues and because of the way turbos spool up you do need to throw more fuel at them to control combustion chamber temp and protect against detonation.

 

[Ben Howard]

shits poppin dave!

 

[MaxiMental]

shits poppin dave!

Haha...thanks Ben! Time for me to go check out GreasyBlocks.com

 

[N_V'DTEGGY89]

Thanks for all the info:up: Can't wait to finally see your car in action this coming season

 

[charisma]

Wow, freaking impressive. Glad to see someone finally put out a centri s/c for the k.

 

[flipsx3]

not bad for race gas

 

[AnointedDC5]

Really considering selling the turbo and cams for one of these setups I don't use A/C much anyway.

 

[JDM809]

I have recently started gathering my parts for a similar build. how ever i will be getting 11.5:1 or 12:1 compression pistons, and carrillo rods, acl bearings, s2000 ERL modified pump with the baffled oil pan. bore will most likely stay stock bore unless i may need to bore it a little over to clean the cylinders. and ill be opting for a block guard. as for the head im thinking of upgrading the valvetrain and getting some good cams. really dont think ill be doing any porting. i would just like to get some feedback on what you guys think of my set up so far. its going into an ek hatch. trying to run it on pump gas so maybe ill be going with the aem water/meth kit for ease of mind. its mostly a street car, will be seeing some track runs here and there.

 

[MaxiMental]

What is your goal in terms of HP and how much boost do you plan to run? In other words, which Rotrex and pulley combo are you intending to use? It's hard to give you any useful feedback without knowing these variables. Also, we talking K24 or K20?

 

[JDM809]

K-Series Race Kit - Rotrex Supercharger, C38-81
Supercharger Pulley - 8 Rib 100mm
Pulley, S/C, 90mm, 8 Rib
Stroked K24. Crank Pulley: 130mm

 

[MaxiMental]

C38-81? You sure it's not a -61, which is the standard C38 Kraftwerks offers?

With a 130mm crank pulley you've got tons of room to rev the engine. What's your targeted max RPM, because with that pulley combo you can rev to 9200 rpm before you max out the C38-61. Sounds like you're more or less going with the Sportcar Motion setup, since they rev their built K24's to right around 9200. Anyway, if you're not planning on revving the engine past say 8500 rpm, then you should look to run a 138mm crank pulley instead so that you get the C38 operating to max capacity/boost.

Since you're building a street car, I'm not sure why you'd want to delay boost by going with such a small crank pulley, which forces you to rev the engine very high before you reach max boost. But if you do some drag racing, then I can see where you're coming from with the build, plus 9200 rpm is fun no matter where you're driving. It's all a matter of personal choice in terms of how to customize your Rotrex setup. I like the lower cost approach of a stock block with lower max rpm and a bigger crank pulley so that boost builds quickly, but your built and stroked K24 should be killer as long as you tune it carefully.

 

[JDM809]

well its not a stroked k24 really. just using the bigger crank they use on those stroker set ups. as for the high rpm reason yeah i do a bit of drag racing here and there so thats why i opted for the ERL modified s2000 pump to prevent oil cavitation at high rpms. thanks for your feedback it really helped and was very informative.

 

[MaxiMental]

No problem, always happy to talk Rotrex setups. I have a modified S2000 pump too and a Hytech baffled oil pan and Hybrid Racing timing chain tensioner, so when I say I'm running a stock block, I'm really referring to the pistons, rods and crank. I'm also running a big oil cooler and a custom racing oil blend from my friends a Quaker State.