Supercharged RB25

[abubika345]

At the shop i work at in PA, Roots Factory, we got bored and decided to take our rhd coupe shop car and do something a little different with the rb we had. Were in the process of mounting an f250 supercharger from powerdyne on it. looking for feedback on what you guys think because if theres any demand we might make the brackets for people to do this if they want.

heres some pictures of the car and the motorclean rhd conversionthe carthe rb in the supercharger

we plan on running it at about 12psi and see what kind of power it puts down, should be interesting. I will post progress when we have time to work on it more.

[maryjane]

[Carl H]

nice!i want to see more of this.is the base engine a det bottom end or de?

[wrgibson]

Where are you going to stuff that supercharger? Are you going to keep the power steering? I'm guessing that's where the blower is going.

Can't wait to see where this goes!

[HxC_Nismo]

i love to see more, its always nice to see something different on a RBkeep it coming bud

[abubika345]

Det bottom end and were not running power steering because of the blower, dont think we'll mind tho

[abubika345]

just got a couple more pictures off the camera

needed a flange for the custom headers so we had to hack up a turbo mani



rough version of the mount for the charger



size comparison

should have it mounted and set up on the motor by next week if we get time and start mocking up intercooler piping for it.


Modified by abubika345 at 8:05 PM 7/9/2009

[krayton]

o_O

awesome though. what about mounting it farther out so you can keep the power steering? man id love to try this.

[abubika345]

The charger is almost touching the frame rail as it is or we would, were not worried about power steering

[Carl H]

what about putting it where the ac would be...got lots of room there...please do keep it up i love fab work like this.also i doubt anyone will miss a sleazebay turbo mani.

[abubika345]

It Takes up where both the ac and powersteering would go, its a big charger

[sci2000tech]

I love custom work like this. I look forward to some results.

Now maybe I missed it, but from the first post it is hard to tell. This is going to just be supercharged, right? Or are you going to twin charge it with a turbo as well?

Either way, be sure to take plenty of pics

[DrifterProdigy85]

Im curious to see this too. I wanna see if the 2.5 has enough tq to really make use of a big charger.

[abubika345]

were just running the supercharger, and idk if its got enough torque but thats why were doing this just to see what happens

[Carl H]

is it possible to drive the supercharger the other way around, for instance with the outlet facing the radiator support?that may buy you some space for ps should you choose to run it...not very well versed in centrifugal chargers and the like.

[abubika345]

its possible, but for what we plan its just to see what it does. we dont plan on running power steering, my boss is contimplating whether or not he twincharges it. Ill have the answer tomorrow depending on if this guy buys the setup we have, if not it goes on the motor and we twincharge it

[abubika345]

we decided to make up the mount tonight just to get a feel for how its going to sit, here it is

[Fibre guy]

+1 for twin charging

[Carl H]

i think for ultimate response monster i'd use a blower with an electric clutch and use an rpm switch to activate it...that and a smaller blower.

[DrifterProdigy85]

I vote for a Compound Charge setup.

[wrxratd]

I vote for a Compound Charge setup.

You would!!! I wanna see a compound charged rb with a whipple charger and a gt40r.

[Sil240]

Carl- I don't think you can turn the blower around without rigging some kinda custom pulley system or changing compressor housings and wheels.

Because the Comp wheel is made to spin 1 way like a turbo. If you spin it the other way it would just churn up the air instead of pumping.

AWESOME build.Never seen a Supercharged RB before.

For a twin charged setup aren't you gonna need a valve of some kind. Or you could put Large dia. 1 way valves in front of the charger discharges.

What exactly is a Compound setup?I can guess, but I've never seen one.(Super feeds Turbo feeds Engine)But that would raise Intake temps pretty high.Anytime you compress air it raises the temp.I would only imagine that the Temp difference would be exponential.

[240z4u]

Dude, I have hypothesized about this for a few years now. So awesome to see it done. I really miss the sound of an I6 without a turbo mucking up the exhaust note.

You have my full and complete support! lol

[240daveTX]

For a twin charged setup aren't you gonna need a valve of some kind. Or you could put Large dia. 1 way valves in front of the charger discharges.

What exactly is a Compound setup?I can guess, but I've never seen one.(Super feeds Turbo feeds Engine)But that would raise Intake temps pretty high.Anytime you compress air it raises the temp.I would only imagine that the Temp difference would be exponential.

this is a friends 2jz. this is the boost logic compund turbo setup



and if your wondering how it works, i have a diagram.



even a vid explaining if you cant quite wrap your brain around it....

http://www.youtube.com/watch?v...edded

[wrxratd]

Interesting. Set up like a compound setup, but not used like a compound setup. Very cool though. Very very cool.

[abubika345]

yes or no???

[240z4u]

I was more interested in the straight supercharger honestly, compound boost setups are awesome but not something I am interested in dealing with for my daily driver though.

[abubika345]

the cars a shop car, we still havent made up our minds on whether we go straight supercharger or twin charged yet, were just going for instant power and were building the head soon to rev to 9k which would be the only reason we would want the turbo to hold power til limit

[Fibre guy]

yes or no???

Yes.

[Carl H]

looks cool fo sho but might be a pain in the a** to tune...course it might be a walk in the park.who knows, i say straight supercharger first then go with a turbo once a good base line is established.seeing 20+psi at the manifold around 2krpm would be insanity tho.