supercharged rx7?
has anyone ever done/ thought about taking the supercharger off of a mk1 mr2 and rigging it up to a 13b?:lol:
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heh. you assume a 1.8 liter engine breathes the same as a 2.6 liter engine. lol
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it's actually a 1.6 liter motor in the mr-2...and it only makes around 150hp with that supercharger.
you'd need 3 or 4 of those little things. |
Originally Posted by K-Tune
(Post 10533268)
you'd need 3 or 4 of those little things.
And for the OP: http://www.CamdenSuperChargers.com/ If you really want to.. |
well im trying to figure out an way to make my car more fun (torquier/faster) that is soft on my wallet....any opinions then?:scratch:
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oh and that supercharger is sick but...to much mula for me...
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port it
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Originally Posted by aimfabrication
(Post 10533328)
well im trying to figure out an way to make my car more fun (torquier/faster) that is soft on my wallet....any opinions then?:scratch:
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http://www.racingbeat.com/RX7-1986-1...sts/16420.html
Felt a little bit torquier to me [I had RB header/presilencer and a good condition stock catback, switched to this] Usually this catback goes for ~$300 used. [If you can find one] I'm not sure about torque, but I was told by an older guy who races FBs with his son, that a light flywheel will make a big difference in how the car feels. ..Other than those - get suspension and go fast around the corners ^_- |
Originally Posted by aimfabrication
(Post 10533328)
well im trying to figure out an way to make my car more fun (torquier/faster) that is soft on my wallet....any opinions then?:scratch:
A. Sell your car and buy a Turbo II. B. Assuming they are still available after the disaster, a J-Spec engine conversion is the next cheapest way to make more torque. Contrary to popular belief: - Turbos make torque. - Turbos are a type of supercharger ("turbo" is short for the word "turbosupercharger"). - Belt-driven superchargers tend to be rather complicated and expensive.
Originally Posted by Derekcat
(Post 10533459)
I'm not sure about torque, but I was told by an older guy who races FBs with his son, that a light flywheel will make a big difference in how the car feels.
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There has been an FC for sale on craigslist in my area for years. It is an unfinished supercharger project. No idea what happened, but he didn't finish it and no one will buy it. And he is selling it cheap. While I don't know the details, supercharging may not be the way to go.
As stated before, best bang for buck would be a T2 swap. Or stay na and port with exhaust, flywheel and tuning. If I had an na, I'd go carb and clean up the rats nests. Don't be hatin. I love carbs. All 4 of them seem to work excellent on my ninja! |
you might wanna look into this thread
https://www.rx7club.com/1st-generation-specific-1979-1985-18/camden-dyno-pull-924013/ |
you can do what i did. but not make the same mistakes, lol.
i took a stock n/a block and ported the lower intake of a TII to match the ports on my 6 port motor and pretty much transferred all TII parts into my car......i mean everything. i used a chipped ecu with an added 40 hp and cranked the boost up to 16 lbs with a manual boost controller. just make sure you use the correct TII wire harness for your series car (s4/s5). aaron cake has a great tutorial about how to do this without using TII parts: http://aaroncake.net/RX-7/projecttina/index.html |
Karack is fabbing up a mount for an Eaton M90, thread is in the 2nd gen forum somewhere.
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Originally Posted by -Crash-
(Post 10534590)
Karack is fabbing up a mount for an Eaton M90, thread is in the 2nd gen forum somewhere.
here https://www.rx7club.com/fabrication-250/13b-supercharger-manifold-934766/ |
Originally Posted by Evil Aviator
(Post 10533583)
A light flywheel will make the car feel like it has less torque on a standing start.
Indeed, it will feel less torque-ie off the line.. What I was thinking was that it might feel more torque-ie after it was rolling - is that correct? |
Friend of mine has a blown supercharged s4 turbo motor in a rx4.
I think there are videos online, it's green and the number plate from memory is DABUZZ. |
Originally Posted by 90VERT
(Post 10535195)
I would think that a turbo is prefered over a supercharger in most cases.
S/C power band are linear turbo power bands are exponential. |
Originally Posted by Derekcat
(Post 10534962)
>_< Sorry, brain fail... Somehow I forgot about that..
Indeed, it will feel less torque-ie off the line.. What I was thinking was that it might feel more torque-ie after it was rolling - is that correct? * I use the term "light" and "heavy" in quotes because it is actually the inertia that affects the feel of the flywheel. The inertia is affected by both the static weight and the weight distribution, so with the proper design it is actually possible to have a heavier flywheel with less inertia than a lighter flywheel. Therefore, the flywheel terms of "light" and "heavy" are actually misnomers.
Originally Posted by Syritis
(Post 10536195)
S/C power band are linear
turbo power bands are exponential. |
yes there are small differences between the S/Cs but their boost gains are based on rpm and rpm rises at a liner rate.
turbo's boost gains are based on CFM. for each CFM burned they move ~1.7x more CFM. |
Originally Posted by -Crash-
(Post 10534590)
Karack is fabbing up a mount for an Eaton M90, thread is in the 2nd gen forum somewhere.
the M90 is commonly found on ford thunderbird supercoupes which is a 3.8L V6 and should be appropriately sized to make slightly over 200WHP with the proper fuel modifications. but i'm going a step further and keeping the 550WHP capable turbo on the car which is where it may start getting a little hazey as to what to expect from just tossing on the supercharger by itself. the example should be good for people who want to attempt it though, as those superchargers aren't too difficult to find or very expensive. it requires a standalone EMS and at least a turbo fuel system to start with, which is where the expenses really come in. here is the build thread for those who are interested in following it, updates will be a little slow for the next month or 2 though while i work on the 6 or so rebuilds i have in the shop. https://www.rx7club.com/showthread.p...t=twin+charged |
Originally Posted by Syritis
(Post 10536563)
yes there are small differences between the S/Cs but their boost gains are based on rpm and rpm rises at a liner rate.
turbo's boost gains are based on CFM. for each CFM burned they move ~1.7x more CFM. Turbos work on mass airflow (lbs/min) as opposed to volume airflow (cfm). The old compressor maps that used cfm were dumbed-down for the hotrodders of yesteryear who had a very limited engineering education and were accustomed to the carb cfm ratings. |
My friends rx4
http://www.youtube.com/watch?v=0Lh4gLA4JW0 |
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