is it safe to supercharge an rx-7
12-04-05, 01:53 PM
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Rotary1
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is it safe to supercharge an rx-7
Wondering i have and 87 rx-7 with a rebuilt engine it has bout 13,000mls and i would like to supercharge it, witch is the best supercharge for it and what else what i need to do
12-04-05, 02:10 PM
#4
if you are lucky you could maybe get away with it for around $1500 including parts for a smaller 'charger, for something more serious and done right it would be more like $3000+ since engine management is almost a requirement to get any real gains.
patience is required because there is only one kit (Camden through Atkins) for our cars and most people do not prefer it as it has its quirks. most other chargers will need fully custom work done to install, which requires a lot of patience, it will not be a weekend or even a 1 month project but likely longer.
patience is required because there is only one kit (Camden through Atkins) for our cars and most people do not prefer it as it has its quirks. most other chargers will need fully custom work done to install, which requires a lot of patience, it will not be a weekend or even a 1 month project but likely longer.
12-04-05, 02:14 PM
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Rotary1
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dam, i saw a pic of a convertable and it had a paxton supercharger it looked reall good, why would it take so long i mean my motor is rebuilt. Can i do it myself or i would have to take to a rotory shop....
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12-04-05, 03:34 PM
#8
do a search for "millenia-s lysholm" that was an inexpensive set up iirc but took alot of time. you will definitely need a mega-squirt/squirt n' spark or something similar. it is also my understanding that the only way you're gonna pull this off is 1. you buy the camden kit 2. you go into this as a learning experience with a ton of patience and just plain want to have fun with your non-daily driver 3. are an engineer and can design a system, manufacture it and install it during the weekend in which case you should come to my house and work on my car
i would love to see someone else attempt this... i would consider it myself but i'm having too much fun with my car to have it down for months as it is
i would love to see someone else attempt this... i would consider it myself but i'm having too much fun with my car to have it down for months as it is
12-04-05, 04:17 PM
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i dont think he meant "best" as in a charger with the best performance in the world rather one that is best for his rx-7 application, and how do u know he doesnt have enough money for anything?
12-04-05, 05:59 PM
#12
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Originally Posted by mfresh422
Wondering i have and 87 rx-7 with a rebuilt engine it has bout 13,000mls and i would like to supercharge it, witch is the best supercharge for it and what else what i need to do
Paxton/Nelson used to make a centrifugal kit many years ago, but only about 10 were produced due to the high cost and lack of interest. Made about 230 HP as I recall.
If you are going to go the supercharger route, it means basically making your own setup. If you have to ask, this project is currently beyond your abilities.
Not trying to be mean, but it's true. You would need to fab all the brackets, inlet/outlet tubes, supercharger mounts, pully system, oil to and from the blower, and the appropriate fuel system.Also, IGNORE ANYTHING to do with zbrown's "famous" project. Worst install ever.
12-04-05, 06:46 PM
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Yes, I scan these forums still...
ALL I can say are the following;
1) TAKE YOUR TIME, patience and doing it right are the BIGGEST thing needed, even with a kit like the Camden, there's always quirks that come up, -even with the kit, and you'll need to stop and think through it, not find the quickest solution.
2) BE PREPARED! I canno't stress enough to anyone how much you need to have ready, my dad's been collecting tools since he was 18, he has almost every tool you can find and we still had moments that we couldn't find a certain special tool...like a 1/4 NPT Tap (HAH! Good luck finding that one in town!) - DO NOT START UNLESS YOU HAVE EVERYTHING!
3) LAST BUT NOT LEAST, don't do it on your daily driver unless you have a back up then take your time on the install and do it right and if you have to use the back up - NEVER RUSH THROUGH THE INSTALL OR TUNING!
Engine mileage isn't a big deal, I'm pushing 8 PSI on an 83k Mazda Remanf Engine.
Search Snub's threads for Supercharging, I'm taking over his kit.
- Tech
ALL I can say are the following;
1) TAKE YOUR TIME, patience and doing it right are the BIGGEST thing needed, even with a kit like the Camden, there's always quirks that come up, -even with the kit, and you'll need to stop and think through it, not find the quickest solution.
2) BE PREPARED! I canno't stress enough to anyone how much you need to have ready, my dad's been collecting tools since he was 18, he has almost every tool you can find and we still had moments that we couldn't find a certain special tool...like a 1/4 NPT Tap (HAH! Good luck finding that one in town!) - DO NOT START UNLESS YOU HAVE EVERYTHING!
3) LAST BUT NOT LEAST, don't do it on your daily driver unless you have a back up then take your time on the install and do it right and if you have to use the back up - NEVER RUSH THROUGH THE INSTALL OR TUNING!
Engine mileage isn't a big deal, I'm pushing 8 PSI on an 83k Mazda Remanf Engine.
Search Snub's threads for Supercharging, I'm taking over his kit.
- Tech
12-04-05, 10:01 PM
#19
If you removed P/S and or A/C could you put a centrifugal on the bracket somehow? If you had a turbo engine you could use the existing oil and coolant lines. You'd need an intercooler and piping, you'd definately have to upgrade the fuel system. Then you'd have to have the ECU tuned, if possible, I really have no idea how flexible the ECU is in the RX-7, well, you could always use a fuel computer. You could tap oil and cooler lines if you had an N/A. The mounting bracket holes would obviously be different. If you couldn't use the P/S A/C braket a machine shop could make one and you could bolt it in the space where the A/C PS Bracket goes, right? You could start to run premium if you're an N/A user and retard the ignition timing a little to avoid detonation.
Obviously it is alot of work, and maybe i'm missing something. But are there any special things i'm missing? It doesn't seem like more work than installing an S/C in any other N/A car where there is no kit for it.
Obviously it is alot of work, and maybe i'm missing something. But are there any special things i'm missing? It doesn't seem like more work than installing an S/C in any other N/A car where there is no kit for it.
12-04-05, 10:03 PM
#20
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1) I wouldn't bolt into the oil cooler lines because on the return line you need no pressure for the oil to drain back, it's a grav feed...
2) There was a PAXTON kit that did exactly what you want, if you can't peice one get a Camden or start getting a better knowledge of one...
2) There was a PAXTON kit that did exactly what you want, if you can't peice one get a Camden or start getting a better knowledge of one...
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