RX7wieler

I am strongly considering supercharging my first gen after i drop a 13B and a tii tranny in it. But what kind of a supercharger would work best I was thinking a Gm one off of a grand prix or something like that cuz there are so many of them around. I would like to carb it to stay away from messing around with computers what kind of a carb would be best I have a mikuni but i hardly belive that it will be sufficient.

kgray

camden.

RX7wieler

is that the only one that will fit cuz im on some what of a budget

Latin270

lol, supercharged on a budget?

kgray

On a budget? http://cgi.ebay.com/ebaymotors/BMW-E...spagenameZWDVW

warwickben

iTrader: (1)

omg iam all most tempted. ive thought about that befor why couldnt u spin a super charger with a electic motor ect. kinda like a honda with a leaf blower.

Tanjo

Screw camden. draw through, no intercooler, and a holley to boot. Either, like you said, fab up an eaton M90 (the charger thats on the GM 3.8s), or spend some more money and get a centrifugal, a paxton or vortech or something. mount it where your AC would go, have it blow straight into a fmic, and then to an IDA style carb with a turbo plenum. The piping being really short, coupled with a SC's near instant power would make for a really fun and streetable car. maybe even throw some No2 at it.

warwickben

iTrader: (1)

one thing i was confused with can you use a bov with a super charger.

Tanjo

On a blow-though set up, yes.

slo

iTrader: (1)

You would be better off installing a stock T2 engine, and doing some basic performance upgrades. It could probably be done cheaper too, would be likley to make more power, be more reliable street able etc.

Tanjo

^ Id agree, any day of the week. A TII swap would be much more cost effective. But for those who really want to SC, for whatever reason, I think that this would be a much better route than the stone age tech of the camden set up.

http://cgi.ebay.com/ebaymotors/Super...QQcmdZViewItem

Id mount it facing backwards, so the shank where the pulley would be is lined up with your current belts. Figure out what size pulley you need and have a machine shop make you one. The mounting bracket and pulley might be a little pricey, depending on your fab skills. But after that, intercooler, bov, boost prepping your carb, and piping. And oil supply and return.

edit... Except that damn dizzy might get in the way... hmmmm

DanielBlakley

If you really want to stick with the supercharger I'm working on installing a whipple twin screw right now... it intails a bit of fab though

Jeff20B

iTrader: (13)

Whipple is super nice. However if you need a kit, the Camden is the only one.

I'm sticking a Camden 5" on my REPU later this year after the rebuild is broken in a bit. I think the REPU would do well with the extra low end torque.

DanielBlakley

For a roots type the camden ones really do kick ***... I think you will be really happy with the results on the REPU. I want to go screw type so I can get high boost across the whole range efficently.

Unseen24-7

Would an M90 need to be underdriven on a 12A? How bout on a 13B?

warwickben

iTrader: (1)

for some putting a tII in there car mite be to much . from what i read its slightly over my head at the moment. yeah u can get a complet motor and trans with wireing harness and ecu for 1500$ pluse shipping .but most would want to rebuild it frist to be safe (rebuild kits are like what 1k$ cheapist ive seen so dont hold it to me.)then u would need to mod different things to get the motor in and run. i priced it out and it was around 4k$ to do it.

with the camden the bolt on kit from there site was just over 3k$
but that was for a seven inch.

RX7wieler

what about if I just keep the 12A and supercharged that with a half bridge port and carb would that work or would I be making alot of work for myself for nothing

aussiesmg

iTrader: (1)

check out KimsFB, hers is the best SC FB ever

boriqua51371

no longer kims but aussie is correct great sc fb and i know cause i sold it to her.

Jeezus

iTrader: (4)

If you are thinking what I think your thinking (haha), on the backside of the supercharger; you want to put a pully that is powered by the crank, on the back end of the shank (the rod sticking out)? That will work, but there is one downfall: Your RPMs dictate your boost. The more you rev it, the more boost you get. That is unless your going to be boosting about 30PSI @7Krpm, with a wastegate spring set at 12PSI.

bad 83

iTrader: (3)

I don't know who's car this is. But I like this setup in a RX-3.

83rx7boy92

^^^wow

83RxV6

hey ive been told unless you put special apex seals on the rotors your not suposed to use N20 cause it will destroy the motor how true is this cause i have one of the baddest Rx7 mechanics in Az telling me this

Jeezus

iTrader: (4)

I hope by baddest you mean worse. N20 is just extra air, make sure your not leaning out your mixture too much and you should be good AFAIK.

RX7wieler

any thoughts on supercharging the 12A with a half bridge? Any one want to speculate as to how much hp that might make?