want to turbo my FB! can i buy a kit??
hey there guys denton here, i have my 83 fb 12a stock. i have a 48ida currently running on it with k&n filter syystem. stock headers (changing to rb headers, or pacesettler soon) i want to turbo my little 12a beast, and am wondering if theres a kit i can buy and if there is where to find one? or what turbo will work best?? im just looking for maybe 250-300 hp. nothing huge. itll be my first boosted car so i want to get a feel of it before i go balls out! loll. iv looked on ebay and the only turbo they said was compatable wiith my fb was a gt45 s4 .. i think? but it wasnt a kit. and about me manifold piping/down pipe. intercooler ect.. and also how would i hook up my oil feed line? my omp pump is off and currently mixing. any replys will help guys! im new to this but iv been reading every day so im learning pretty fast about rotorys. thanks!!!:nod:
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There really isn't a kit, you'd have to piece it all together yourself. You can't just slap a turbo on and go....well....you can if you want to blow the engine
My advice is look at build threads in the 1st gen section |
I would start by reading the first gen faqs, there is a ton of info/threads listed there. Also search for build threads, that's what I did before I started doing my swap
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Originally Posted by erick31876
(Post 12030997)
I would start by reading the first gen faqs, there is a ton of info/threads listed there. Also search for build threads, that's what I did before I started doing my swap
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im new to this but iv been reading every day so im learning pretty fast about rotorys.
R-O-T-A-R-Y...say it with me now...sloooooooow.....! (hey,I gotta have some fun you know!) |
You can do a blow-through but nothing close to 250-300 hp with a 12A. Maybe 150-160 hp.
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Originally Posted by KansasCityREPU
(Post 12031223)
You can do a blow-through but nothing close to 250-300 hp with a 12A. Maybe 150-160 hp.
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Call Goopy Performance. He sells a complete bolt-on kit. Tell him i sent you. Good luck
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Originally Posted by r0to-D3wd
(Post 12031980)
What's a blow through?
The other type is a draw-through system, in which the carb feeds into the turbo. The advantages are that it doesn't require a compressor bypass valve, boost-controlled fuel pressure regulator, or carb mods for high pressure air. The disadvantages are that it is prone to icing, has worse throttle response, worse cold starting, is difficult to tune, and can't utilize a proper intercooler. I would tend to avoid this system unless you are so broke that you can't afford a decent system, in which case you really shouldn't be spending money on a turbo anyway. A better option is to convert to electronic fuel injection (EFI) engine management system (EMS) such as Haltech, Megasquirt, etc. This allows for fine tuning of both the fuel metering and ignition timing throughout the entire rpm range, and it eliminates the problem of the carb venturi reducing boost pressure. You can use whatever type of intercooler you like, and a compressor bypass valve (or blowoff valve) is optional. The disadvantages are that it requires an EFI fuel pump, EFI pressure regulator, EFI fuel lines, EFI fuel filter, fuel injectors, throttle body, maybe a crank trigger and other parts, not to mention the EMS itself. Honestly, the best option is to sell the car and buy a turbocharged RX-7. This would be the cheapest and easiest route to a turbo RX-7, and it will come with EFI, strengthened drivetrain, and other goodies that your current car does not have. |
Originally Posted by Evil Aviator
(Post 12032052)
On a blow-through system, the turbo feeds into the carb. The advantages are that it allows for an intercooler, and it has the potential to run pretty well at idle and wide open throttle. The disadvantages are that it requires a compressor bypass valve, a boost-controlled fuel pressure regulator, and modifying the carb for high pressure air.
The other type is a draw-through system, in which the carb feeds into the turbo. The advantages are that it doesn't require a compressor bypass valve, boost-controlled fuel pressure regulator, or carb mods for high pressure air. The disadvantages are that it is prone to icing, has worse throttle response, worse cold starting, is difficult to tune, and can't utilize a proper intercooler. I would tend to avoid this system unless you are so broke that you can't afford a decent system, in which case you really shouldn't be spending money on a turbo anyway. A better option is to convert to electronic fuel injection (EFI) engine management system (EMS) such as Haltech, Megasquirt, etc. This allows for fine tuning of both the fuel metering and ignition timing throughout the entire rpm range, and it eliminates the problem of the carb venturi reducing boost pressure. You can use whatever type of intercooler you like, and a compressor bypass valve (or blowoff valve) is optional. The disadvantages are that it requires an EFI fuel pump, EFI pressure regulator, EFI fuel lines, EFI fuel filter, fuel injectors, throttle body, maybe a crank trigger and other parts, not to mention the EMS itself. Honestly, the best option is to sell the car and buy a turbocharged RX-7. This would be the cheapest and easiest route to a turbo RX-7, and it will come with EFI, strengthened drivetrain, and other goodies that your current car does not have. |
There were guys getting decent power and ET's with a T04 drawing through a Webber here in Australia-land in the 80's.
Personally I would go a TII swap and sell the existing donk. |
Originally Posted by WANKfactor
(Post 12032419)
There were guys getting decent power and ET's with a T04 drawing through a Webber here in Australia-land in the 80's.
Personally I would go a TII swap and sell the existing donk. |
WIm not sure the ins and outs of it, it was before my time and was never a common thing. Id imagine a lot of trial and error and developement went into it and was obsolete as soon as EFI became more easily available.
Pretty cool though - ill see if i can find anything on it next time im at a computer. Theres a guy on here doing boost-prepped Nikkis which would be easier and he will be able to steer you in the right direction. The other thing that might be worthwhile looking at is a nice shot of NOS if the set up you have already goes pretty nice. |
Originally Posted by WANKfactor
(Post 12032502)
WIm not sure the ins and outs of it, it was before my time and was never a common thing. Id imagine a lot of trial and error and developement went into it and was obsolete as soon as EFI became more easily available.
Pretty cool though - ill see if i can find anything on it next time im at a computer. Theres a guy on here doing boost-prepped Nikkis which would be easier and he will be able to steer you in the right direction. The other thing that might be worthwhile looking at is a nice shot of NOS if the set up you have already goes pretty nice. |
Ok, i had a quick search, couldnt exactly find the turbo weber cars i was looking for, but seriously, the easiest way to get the extra horses would be to run a nice exhaust, intake, tune and a NOS kit.
Next closest thing to a turbo kit is something like this https://www.google.com.au/url?sa=t&r...XheBg81xDoaepA and finally, a T2 swap will yeild the best results, probably about the same amount of work but with less headaches (relatively, LOL), and more (much more) potential should you want to modify further) plus you get a the t2 gearbox and everything else. Keep an eye out for a wrecked t2 or a Half-cut from the Japans. You can always sell the stuff you dont end up using. That said unless you have a good idea what you are doing and are confident in fabbing mounts, manifolds, new fuel system, ect i wouldnt do more than bolt-on stuff hence the Nos recommendation, where you can keep your weber and racing beat exhaust and leave black marks happily ever after. |
Originally Posted by r0to-D3wd
(Post 12030980)
hey there guys denton here, i have my 83 fb 12a stock. i have a 48ida currently running on it with k&n filter syystem. stock headers (changing to rb headers, or pacesettler soon) i want to turbo my little 12a beast, and am wondering if theres a kit i can buy and if there is where to find one?
or what turbo will work best?? im just looking for maybe 250-300 hp. nothing huge. itll be my first boosted car so i want to get a feel of it before i go balls out! loll. you should probably go about setting the car up N/A first. if you're really interested in working with the Weber, get some parts (jets, venturis, etc.), a decent exhaust system, spark plugs and a notebook and get to work! you may be surprised at what you can turn the car into. if you're not committed to learning how to tune a carburetor, then go EFI, which would probably be a better move for a turbo system anyway. that said, if you're going to go ahead with this - and it sounds like that's your intent - i have grown rather fond of the builds that use the Nikki and the OEM Hitachi (from the T2s). there are a few build threads that you can use a blueprint and they're not hard to find in the Gen I section. you can build on the Weber just fine, but it will have to be boost-prepped just like anything else, then it will have to be tuned as well. i would dare say that as of right now, you would get much more support on the board for a Nikki. it's your choice though. also, forget the draw-through systems. they're time is over! forget the horsepower numbers! i have no idea how much power they can yield in an optimum setup, but i'm sure it's much more than you need to get into serious trouble - legally, physically - take your pick. if this is one of those cases where the number is significant for some bet or vendetta, then do like what Evil Aviator said and sell the car. iv looked on ebay and the only turbo they said was compatable wiith my fb was a gt45 s4 .. i think? but it wasnt a kit. and about me manifold piping/down pipe. intercooler ect.. and also how would i hook up my oil feed line? my omp pump is off and currently mixing. any replys will help guys! im new to this but iv been reading every day so im learning pretty fast about rotorys. thanks!!!:nod: |
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