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Location:
Gold Coast, Australia
Registered:
December 2002
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Anyone supercharged a 3S-GE?
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Fri, 27 December 2002 06:39
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Hello
I'm after an SW20 MR2 and I'd rather not go for a turbo/grey import. I remember hearing about a company that advertised on the net a supercharger kit for the 3S-GE using a second hand jap supercharger from a 1GGZE and sold it as a complete kit with all brackets, etc.
Does anybody else know about these kits or have something similar installed? I would much prefer to go the roots type supercharger than turbo because I am a big fan of bottom end grunt.
Cheers
PS. Sorry if this has come up before, I can't find anything similar with the search tool.
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Anyone supercharged a 3S-GE?
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Fri, 27 December 2002 06:50
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There are supercharger kits available for 3SGE's in celica's, and kits available for everything from Excel's to Civic's, so even if you can't find a kit, there's no reason it can't be done 
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Location:
Tamworth
Registered:
October 2002
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Re: Anyone supercharged a 3S-GE?
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Sat, 28 December 2002 14:59
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well if anyone has info on it i would like to try something different rather than a turbo , so any help would be great
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Anyone supercharged a 3S-GE?
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Mon, 30 December 2002 04:55
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if it's low end grunt you're after, a good quality small turbo will get you good power early. if you're after something unique, then that's a different matter. I'm totally biased toward turbos, especially on small capacity engines. too many losses on a supercharger, unless it's a simple bolt on (like 4a-ge - gze)
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Location:
Gold Coast, Australia
Registered:
December 2002
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Location:
Tamworth
Registered:
October 2002
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Re: Anyone supercharged a 3S-GE?
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Mon, 06 January 2003 04:59
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i would be very interested to hear how you went jambo
cheers
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Location:
South Australia
Registered:
July 2002
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Location:
Brisbane
Registered:
May 2002
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Re: Anyone supercharged a 3S-GE?
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Mon, 06 January 2003 07:32
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Superchargers create just as much heat as turbochargers at any given boost level. The laws of thermodynamics apply here; compress any gas and it will get hot! Some types of superchargers (eg roots) actually generate more heat than turbos due to their inferior adiabatic efficiency.
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Location:
South Australia
Registered:
July 2002
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Re: Anyone supercharged a 3S-GE?
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Mon, 06 January 2003 07:39
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The combustion gases may heat up as much, but the under bonnet temperatures are way lower (sorry I forgot about that), I thought that the turbocharger itself got way hotter than a supercharger ever would.
Also the back pressure in the exhaust from a turbo heats up the exhaust manifold too, or so I thought, sorry if I'm wrong, I wouldn't intentionally mislead anyone!
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Location:
Gold Coast, Australia
Registered:
December 2002
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Re: Anyone supercharged a 3S-GE?
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Mon, 06 January 2003 08:07
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Thanks for the input fellas.
This company quoted me $4500 for the full kit running only 4-5psi non-intercooled. He said add another $1500ish for RX7 s4/5 cooler, plumbing and more boost..... yikes. That's without even touching the ecu, he reckons any more than about 5psi and it would be ecu changeover time as well. That's a bit of a step up from the $2000 I heard last time. But the had a Lola Le Mans car in the shop which was some form of consolation.
I've been chatting to a guy who's develping his own kit for a 5S-FE yank spec model so I might see what's involved in doing it myself. If all else fails I guess I'll have to go for one of the turbo models or maybe a 180/200sx.
Cheers.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Anyone supercharged a 3S-GE?
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Mon, 06 January 2003 08:39
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you're both right
depending on boost, they will both heat to the same level due to that
BUT
with a turbo you've also got your exhaust passing through the same unit, heating it up even more.
the trade off with a supercharger is (generally) less power as it is driven by the engine, so reqires some engine power to work, whereas a turbo is using the waste (exhaust) to acheive boost
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Anyone supercharged a 3S-GE?
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Mon, 06 January 2003 08:44
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$1500 for an intercooler is bs, especially since you'd be getting a 2nd hand one.
you could pick up a mk3 supra intercooler nice and cheap and use that (if you're keen)
and of course, when you're only running 5 pounds of boost an intercooler isn't going to make that much of a difference.
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Location:
South Australia
Registered:
July 2002
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Re: Anyone supercharged a 3S-GE?
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Mon, 06 January 2003 09:10
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I think one problem is you can't piggy back ECUs on a 3S-GE (as far as I know), but I reckon a little over 5 psi boost could be handled by the standard ECU easy, you might just not be getting as much power as if you changed it. I don't konw how much spark you'd get either, most likely you'd have to reduce the spark plug gap to make up for it, but that's a piece of pie.
And $1500 for an intercooler is definitely garbage. Although I have to ask (out of curiosity) where's a good spot to put an intercooler in an MR2?
Still sounds a tad expensive just for the base $4500, probably not worth it unless you value "being different" a helluva lot.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Anyone supercharged a 3S-GE?
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Mon, 06 January 2003 12:41
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3 options in an mr2.
you can have guard mounted, you can have "top" mounted (which most times are closer to side mounted, and often have a snorkel on the roof to get the air flowing onto it) and I've also seen a front mount.
admittedly the front mount was on a drag MR2, so the massive amounts of turbo lag didn't matter
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Location:
Gold Coast, Australia
Registered:
December 2002
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Re: Anyone supercharged a 3S-GE?
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Tue, 07 January 2003 01:38
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Yeah I've seen a ludicrous front mount setup with piping running through the cabin!
I'm not keen on this joint's prices. I mean I'm no expert but in all seriousness, what has to be done that is worth $4500 without ecu? The SC14 is only $3-400, I'm sure I could get a metal fabrication place to make up a simple bracket or do it myself. Piping's another issue but surely not worth much more than $500? I'd assume I could run it in line with the aircon (longer belt obviously), I'd also like to source a check valve so I can use the inbuilt clutch to engange and disengage the s/c from inside the cabin, Mad Max style. Anyone know where I can find one? It would be great for fuel economy, rainy days, etc.
The guy in the US has fabricated his brackets but the s/c will be protruding through the engine lid by about an inch, so he is making up a little fiberglass bubble to cover it.
As far as cooler goes, I have seen MKIII supra ones for $100-150 and a MKIV one for $150. They do recommend the rx7 cooler for some reason, but I can't see it costing any more than that. Piping and mounting, I have no idea how much this would cost to make up, $500-700? I'm not after anything showy. Does anyone have a ballpark figure, say if somebody has supercharged a 4A-GE for example?
Then ecu, well, that sux if you can't piggy back onto the stock one. I'll have to do some more research on this.
Can anybody suggest something with injectors/fuel rail? I'm sure I could pick up some higher rated second hand ones from a different engine.
I've found two guys in Sweden with supercharged 3S-GEs in their MR2s using the Ludi Motorsports kit which is even more expensive than the Blitz kit ($US6000). Both cars are making 240hp (I assume that's at the crank but haven't confirmed yet). They are going to email me some pics which will give a good idea of placement and mounting brackets. I'll post them up here.
Don't get me wrong, I would love to have the same thing as everybody else (I'm driving a Falcon GLi atm for crying out loud). I am not out to get attention or be a pioneer.... I just really cannot stand turbo lag or the hassles of owning a grey import.
Cheers.
[Updated on: Tue, 07 January 2003 01:44]
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Anyone supercharged a 3S-GE?
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Tue, 07 January 2003 04:17
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my god
US$6000 ?!?!
for that you could drop in a 3s-gte, put a better turbo on it, good fmic (or guard mount in your case.. the mkIV might me a good idea, they're very good apparently), wind the boost up, cool air intake, and have money left over.. and be making well over 240 at the crank
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Location:
Gold Coast, Australia
Registered:
December 2002
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Location:
Brisbane
Registered:
May 2002
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Re: Anyone supercharged a 3S-GE?
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Mon, 20 January 2003 05:57
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What are the hassles of a grey import? Seeing as we have SW20's over here what parts aren't interchangeable? And if you go and SC one wont your insurance be effected much to the same as an import? Maybe there is something I'm missing?
Cheers
Wilbo
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