Supercharged Stagea

[BigBoyDan]

so the story goes my mate imported a eaton m90 from the states to go on his 1uzfe he's now decided to go tt so i've got a cheap blower to go on my s2.

has anyone attempted this?

blower = 6-10psi

[iamhe77]

Why?

Your Stag is already turbo charged is it not?

[BigBoyDan]

Why?

Your Stag is already turbo charged is it not?

early boost

[DaveB]

That would be interesting to see... however CRIPES don't rip out your turbo for a 6-10psi blower ?! Supercharging does have its benefits of course, but if your unit's limit is 10PSI then I fear even the stock turbo is going to beat that with a good enough intercooler.

[BigBoyDan]

That would be interesting to see... however CRIPES don't rip out your turbo for a 6-10psi blower ?! Supercharging does have its benefits of course, but if your unit's limit is 10PSI then I fear even the stock turbo is going to beat that with a good enough intercooler.

wasnt planning on it... blower + turbo

i know theres a rb30 in queensland with this setup but contact unknown

[KiwiRS4T]

That would be interesting to see... however CRIPES don't rip out your turbo for a 6-10psi blower ?! Supercharging does have its benefits of course, but if your unit's limit is 10PSI then I fear even the stock turbo is going to beat that with a good enough intercooler.

Certainly don't replace the turbo with the supercharger but I see Japanese tuners have added twin superchargers to a GTR (I couldn't quite see how it worked but I think the superchargers were blowing into the turbos (should assist with quich spool!).

[BKC34]

the bandag bullet has 2 v8's in it that are supercharged and twin turbo'd so i guess a supercharger and a turbo is possible, dont know how the F*#k they do that shit tho lol

[GoldZilla]

There's also the current Mk V Golf GT Sport that has a 1.4 litre turbocharged and supercharged engine with direct injection (first time the 3 technologies have been used together in the world).

No reason it couldn't work, but I'm guessing VW would have spent HEAPS on getting the computers programmed so that they're running everything right...

[JC807]

HKS made a twincharge kit for the 4agze, long out of production. I've seen this kit for sale on ebay. Obviously no good but you could do a search for it to see how that kit works.

There are a few different ways to do a twincharge setup (i'm certainly no expert), different pros and cons for each way i believe. There is a guy twincharging a 3rzfe motor on toymods at the moment.

[rb26stagea]

Don't forget that the Nissan March Super-turbo had both as well, and that was in the 80's (90's?)....

It's gonna make one helluva cramped engine bay, and there's going to be serious piping tetris going on, if you decide to try it....

[brent32]

wasnt there a twin charge S15-SR20 made by BEE*R in the HPI mag a while ago?

[Mr500]

the bandag bullet has 2 v8's in it that are supercharged and twin turbo'd so i guess a supercharger and a turbo is possible, dont know how the F*#k they do that shit tho lol

mate, bandag bullets engines are old detroit diesel two strokes that have "blowers" or scavanging pumps rather than supercharges, only the turbo is actualy adding any boost.

[89CAL]

I went to the trouble of finding something handy for you: RB30DET + Supercharger

from another forum.

I think this member may be active on here as well but not sure

I woulda posted the thread with all the info on it but i dont think im allowed to do that lol

Its an Eaton M90 supercharger BTW

and hope the person who owns doesnt mind me posting it here

Edited January 17, 2009 by Boostin96

[BigBoyDan]

Don't forget that the Nissan March Super-turbo had both as well, and that was in the 80's (90's?)....

It's gonna make one helluva cramped engine bay, and there's going to be serious piping tetris going on, if you decide to try it....

yar Ali Gs egg beater... was thinking along those lines, pod -> turbo -> blower -> chamber. the charger turning off (electromagnetic clutch) at some point

wasnt there a twin charge S15-SR20 made by BEE*R in the HPI mag a while ago?

http://au.youtube.com/watch?v=4SjNgVH_HN0

I went to the trouble of finding something handy for you: RB30DET + Supercharger

from another forum.

I think this member may be active on here as well but not sure

I woulda posted the thread with all the info on it but i dont think im allowed to do that lol

Its an Eaton M90 supercharger BTW

and hope the person who owns doesnt mind me posting it here

http://au.youtube.com/watch?v=yzRpz9c-t_o

http://au.youtube.com/watch?v=p4ydUi1XUGI

thanks for your help guys

[sleeper393]

I went to the trouble of finding something handy for you: RB30DET + Supercharger

from another forum.

I think this member may be active on here as well but not sure

I woulda posted the thread with all the info on it but i dont think im allowed to do that lol

Its an Eaton M90 supercharger BTW

and hope the person who owns doesnt mind me posting it here

that engine must pump out some serious heat , the bonnet paint must be flame proof

[wolverine]

stocky mcstock twin charged his car. there is a big thread here on SAU if you do a search.

[Raysboostin]

the m90 blower can run alot more than 10psi. there are many super6 commos running 18-22psi through them (intercooled of course). as much as the super and turbo idea sounds good, it a massive amount of work (and $$$$$) that would be very unnecessary unless ur chasing 500+hp and still want good response. i would suggest seriously considering blower only for ease of fitting and alot less plumbing. either way you go it should sound fantastic. good luck.

[brent32]

nice work wih the utube links dan

[pixel8r]

early boost

that depends on how much "early" torque your engine can deliver too...which isn't that fantastic in stageas. It gets better with every later model though...

I guess it would still work....seems a lot of effort though, and most stageas are on boost pretty early anyway - so you're looking at improving only a very small gap in the rev range.

[RubyRS4]

It can be done. I helped do it to a mate's 200B SSS with SR20DET many years ago. Just plumb the compressed air after turbo compressor housing and before the intercooler.

The supercharger should go higher with boost. 10psi is low imo. Get the specs and see what the max rpm the turbo can go to. Then match that to the engine's max rpm. For example, SC max 9,000 rpm vs engine max 6,000rpm means a pulley ratio of 2:3 maximum. But I'd drop 1,000rpm on the SC to be safe, so 6,000 to 8,000 = 3:4 ratio (SC completes 4 revs per 3 engine revs). This can be altered by pulley sizes on the SC.

But don't forget some SC are teflon coated on the inside. Even if you've got a max 9,000rpm on the SC, an old or used SC will not be as reliable, so again drop 500-1,000rpm off your max.

Also, don't forget if your turbo is set at 10psi and the SC runs 10psi max boost, there is a potential 20psi there at some point of overlap in the rev range. Also, your turbo pumping 10psi is now fighting against 20psi which wants to go back the other way. I'd recommend 6psi SC for low down response and 10psi on the turbo for mid-top end. The SC is pulley driven so it will be fine against 16psi, but again keep in mind the coating on the rotors in the SC.

I have no more documented stuff on this build, so see if you can find over the net some forum or detailed log of a build similar to this.

I've worked with superchargers and turbos before, so shoot me a PM if you want some further tips.

Another we drew up, but never built, was running the SC inlet from the turbo compressor, so the SC is in between the induction side of the turbo and intercooler. But you'd want to match things properly. Say max rpm from the supercharger to handle the boost from the turbo when at its max. But then a second intercooler between turbo and SC would be recommended. I fantisized about running turbo (@ 12psi max) then intercooler, then SC (@ 12psi max also, as long as this doesn't exceed the max rpm for SC), then second intercooler then plenum. This way the SC provides an early boost, which also aids speeding up spinning the turbo, then the turbo hits max boost. Without risk of damaging the engine from overboosting. Food for thought ... wished I'd gone ahead with this idea years ago.