carbs, supercharger, turbo
05-16-07, 12:32 AM
#7
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Bang for the buck
Vacuum secondary Holley on an open plenum to a draw through turbo feeding 10-12 lbs boost using boost proportional water/alcohol injection to control detonation.
This will not be as powerful as an injected intercooled setup, but you asked for the "bang for the buck" version.
This will not be as powerful as an injected intercooled setup, but you asked for the "bang for the buck" version.
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05-16-07, 02:56 AM
#9
Supercharger is simple and effective, very tuneable and torquey. Turbo on the other hand will give more power on top end. If power is the bottom line, review pic no_rotor's post. Gotta cool the charger and handle the ignition to prevent catastrophic failure though. Even a good blow thru set-up can yield 300rwhp. Supercharger is more streetable, simpler but you'll never pass 200. Sooooo, if the 1/4 mile is what you're after, go turbo. Price it out though, if you have parts kicking around and friends with stuff you can go blow thru quite reasonably, if you gotta buy new, consider a TII swap.
05-16-07, 07:45 AM
#12
Supercharger is simple and effective, very tuneable and torquey. Turbo on the other hand will give more power on top end. If power is the bottom line, review pic no_rotor's post. Gotta cool the charger and handle the ignition to prevent catastrophic failure though. Even a good blow thru set-up can yield 300rwhp. Supercharger is more streetable, simpler but you'll never pass 200. Sooooo, if the 1/4 mile is what you're after, go turbo. Price it out though, if you have parts kicking around and friends with stuff you can go blow thru quite reasonably, if you gotta buy new, consider a TII swap.
13b's bolt in to a 1st gen very easy and will yield more reliability with a given power goal.
The questions you are asking is a red flag that you don't know alot about Rx7's or rotary setup's. Read on this forum alot. Searching is your best friend. Post some questions if you can't find your answers.
05-16-07, 09:29 AM
#14
Supercharger give the "feel" of there being more power than there really is (sounds cool too). It's the torque that makes it attractive for a daily driver, feels kinda like this to drivehttps://www.rx7club.com/images/attach/gif.gif
https://www.rx7club.com/images/attach/gif.gif where as the turbo is actually makes more net hp and shows results especially well at the track, kinda like this
the guy in behind. I like the s/c, but I know I was disappointed with the first trip to the drags, it felt a lot faster.
https://www.rx7club.com/images/attach/gif.gif where as the turbo is actually makes more net hp and shows results especially well at the track, kinda like this
the guy in behind. I like the s/c, but I know I was disappointed with the first trip to the drags, it felt a lot faster.
05-16-07, 09:33 AM
#15
Supercharger is simple and effective, very tuneable and torquey. Turbo on the other hand will give more power on top end. If power is the bottom line, review pic no_rotor's post. Gotta cool the charger and handle the ignition to prevent catastrophic failure though. Even a good blow thru set-up can yield 300rwhp. Supercharger is more streetable, simpler but you'll never pass 200. Sooooo, if the 1/4 mile is what you're after, go turbo. Price it out though, if you have parts kicking around and friends with stuff you can go blow thru quite reasonably, if you gotta buy new, consider a TII swap.
Ok you can make a supercharger just as good as a turbo....If you cange the polly you can chang the bost.
05-16-07, 09:57 AM
#16
Nope, not a chance. Changing the pulley increases boost and brings the boost on earlier. There comes a point where you hit diminishing returns and the charger builds up too much heat and starts to cavitate as well and you can actually see a loss of power. with a pulley change you also need to increase the carburetor to reduce cavitation.
05-16-07, 11:03 AM
#17
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In the power range he probably has budgeted, either woudl do him fine - quite honestly, unless he is going to use a TII set up, the super has less plumbing and tuning involved and would be a easier set up. But, since he is so short on words, I can only assume that he is short on abilities in other aspects of life and will probably have a shop complete the work. In that case, firstgen689, you should get on ebay or this forum and start looking for pre-built blown 1st gens for purchase(this is the long run is most cost and time effective).
There are numerous threads about junkyard turbos and what not - just search as I, as well as others, have had to do. This isnt something that you can do on a whim unless you have unlimited budget. You have to research first(and alot of it!)
Have you ever had a blown car before? If the only experience you have had is from F&F or from your friend's turbo desiel jetta, you have a long way to go. Factory setups are usually very good because of all the money that went into their development. How much money are you talking about spending into your car's develpment? $3k? $100? $100000000000? The reason I ask this is because yes, you can slap on a blower for pretty cheap, and it may even run, but if you don't know how things work together or how to tune a blown car, you WILL destory your engine.
In short - I think that a TII swap is probably the most cost effective because you can junkyard most of it. Next, I would say the supercharger - because there is little plumbing and lighter amount of tuning required. Custom turbo set up will be the most expensive due to heavy fabrication and tuning. You may also consider doing a naturally aspirated engine - like a streetport or bridgeport or what not.
There are several sites on the internet like racingbeat, etc.. that sell prebuilt engines, blower setups, etc... - search this board for those vendors and take a look. A supercharger set up was about 3000 new last time I checked. (I dont rememebr if that includes the carb or not)
And finally, search. (use words like turbo, supercharger, blower)
There are numerous threads about junkyard turbos and what not - just search as I, as well as others, have had to do. This isnt something that you can do on a whim unless you have unlimited budget. You have to research first(and alot of it!)
Have you ever had a blown car before? If the only experience you have had is from F&F or from your friend's turbo desiel jetta, you have a long way to go. Factory setups are usually very good because of all the money that went into their development. How much money are you talking about spending into your car's develpment? $3k? $100? $100000000000? The reason I ask this is because yes, you can slap on a blower for pretty cheap, and it may even run, but if you don't know how things work together or how to tune a blown car, you WILL destory your engine.
In short - I think that a TII swap is probably the most cost effective because you can junkyard most of it. Next, I would say the supercharger - because there is little plumbing and lighter amount of tuning required. Custom turbo set up will be the most expensive due to heavy fabrication and tuning. You may also consider doing a naturally aspirated engine - like a streetport or bridgeport or what not.
There are several sites on the internet like racingbeat, etc.. that sell prebuilt engines, blower setups, etc... - search this board for those vendors and take a look. A supercharger set up was about 3000 new last time I checked. (I dont rememebr if that includes the carb or not)
And finally, search. (use words like turbo, supercharger, blower)
Last edited by drittens; 05-16-07 at 11:09 AM.
05-16-07, 06:42 PM
#20
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12a fi with t-66 turbo started with a budget of 5k i can tell you with confidance i broke the budget , lost the wife and im about to lose the house lol. just kidding but for sure it all depends on what you want mine is a 12a custom turbo and the bill is now around 10k and not yet finish. but for sure this will be an awsome set up and i wont be disappointed. http://i39.photobucket.com/albums/e1...arparts047.jpg my project started with a charger now its a turbo . good luck with yours.
05-16-07, 06:43 PM
#21
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http://i39.photobucket.com/albums/e1...arparts012.jpg charger i sold . http://www.camdensuperchargers.com/
Last edited by boriqua51371; 05-16-07 at 06:45 PM. Reason: wrong url.
05-17-07, 10:13 AM
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05-17-07, 11:40 AM
#23
PercentSevenC recently shot some videos of an orange FB with an SC and sent me the links. Here they are for our enjoyment.
Pulling out of the parking lot and sliding around:
http://media.putfile.com/Supercharged-RX-7-showing-off
In-car footage:
http://media.putfile.com/Supercharge...ing-off-in-car
Revving the engine:
http://media.putfile.com/Supercharge...revving-engine
Donuts - short:
http://media.putfile.com/Supercharge...g-donuts-short
Donuts - long:
http://media.putfile.com/Supercharge...ng-donuts-long
Pulling out of the parking lot and sliding around:
http://media.putfile.com/Supercharged-RX-7-showing-off
In-car footage:
http://media.putfile.com/Supercharge...ing-off-in-car
Revving the engine:
http://media.putfile.com/Supercharge...revving-engine
Donuts - short:
http://media.putfile.com/Supercharge...g-donuts-short
Donuts - long:
http://media.putfile.com/Supercharge...ng-donuts-long
