Periphrial Port 13B?
#1
Black Night (AKA SPAZ)
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Periphrial Port 13B?
So I was thinking of making my 81 Rx7 GSL and putting a PP 13B into it.
Has anyone done this?
Does anyone know generally what it would cost for a good rebuild?
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I've got an 81 GSL, It's completly stripped of interior, and useless engine bay crap. I use the car for daily driving, autocrossing, and dragging. So, The car is very light, and with a 13B PP motor, I woudl assume I coudl get assloads of torque/power out of it.
Just curious as to what your all's input on this kind of setup woudl be.
Wondering if I should use Dual Webers, or just like a single 48mm, or a 52mm...
Has anyone done this?
Does anyone know generally what it would cost for a good rebuild?
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I've got an 81 GSL, It's completly stripped of interior, and useless engine bay crap. I use the car for daily driving, autocrossing, and dragging. So, The car is very light, and with a 13B PP motor, I woudl assume I coudl get assloads of torque/power out of it.
Just curious as to what your all's input on this kind of setup woudl be.
Wondering if I should use Dual Webers, or just like a single 48mm, or a 52mm...
#5
whipmebeatmewankelmeoff
I dun think $4,000 is gonna be enough remember you'll have to lock the rotors, balance the rotating mass, the rotor housings will either have to be made or MFR housings bought and you'll need a kit to build it. IF you can do the engine build yourself and you cut a few corners you might get the engine done for that.
#7
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Racing Beat has peripheral port rotor housings for turbo and nonturbo applications along with many other parts you would probably need if you are looking for all upgraded parts. As for pricing you will have to look yourself.
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#9
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Originally Posted by DriveFast7
#10
Peripheral Ports do not need to be all that expensive. They are remarkably easy to make if you have the right equipment and some know-how. Here's a thread on this very subject:
https://www.rx7club.com/forum/showthread.php?t=144200
https://www.rx7club.com/forum/showthread.php?t=144200
#11
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Yes I've read about Scalliwag's work, it seems good. It would definitely be a lot cheaper than buying pport housings from like Racing Beat or something, but the only potential problem I'm seeing is how well they stand up and if any issues will arise. I don't think he's been doing it long enough to know for sure, though in theory they seem fine.
#12
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Mike (Scalliwag) has built P-port housings for top-rated pro-drag racers...
I have alot of things on my car he has made, and I totally vouch for his quality.
HE hasn't been making the p-port housings for long, but has been a machinist for years.
I have alot of things on my car he has made, and I totally vouch for his quality.
HE hasn't been making the p-port housings for long, but has been a machinist for years.
#13
Peripheral ports are just a little harder to build than street/bridge ports but where the hell are you going to drive it? As I understand it- Peripheral ports are exclusively race engines - not to be domesticated for the street.
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Originally Posted by SS124A
Mike (Scalliwag) has built P-port housings for top-rated pro-drag racers...
I have alot of things on my car he has made, and I totally vouch for his quality.
HE hasn't been making the p-port housings for long, but has been a machinist for years.
I have alot of things on my car he has made, and I totally vouch for his quality.
HE hasn't been making the p-port housings for long, but has been a machinist for years.
#15
FD > FB > FC
Originally Posted by Snapshot
Peripheral ports are just a little harder to build than street/bridge ports but where the hell are you going to drive it? As I understand it- Peripheral ports are exclusively race engines - not to be domesticated for the street.
and ive heard otherwise, mabey blake would care to chime in on this
#17
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Originally Posted by DriveFast7
It says please ask because it is expensive. And you can get basic rebuild prices + oil upgrade prices off there.
#18
Blood, Sweat and Rotors
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Originally Posted by dDuB
Yes I've read about Scalliwag's work, it seems good. It would definitely be a lot cheaper than buying pport housings from like Racing Beat or something, but the only potential problem I'm seeing is how well they stand up and if any issues will arise. I don't think he's been doing it long enough to know for sure, though in theory they seem fine.
I have seen one, with a smaller endurance racing size intake ports last 40 hours on carbon apex seals; road racing in Southern California. Typically shifted @ 8800rpms but did take it up to 9400 sometimes.
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Originally Posted by DriveFast7
Figure it out. C'mon. And the Please Ask for PP is a hyperlink to ask the builder ...............
#21
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Last I checked, Mazdatrix was building P-ports on special-order basis for around $8K.
I am sure they can be done cheaper, but here is an engine where you wouldn't want to cut any corners.
For someone like Blake, a p-port has proven to be successful, You may want to consider things. I am sure for yoru $4K budget you can get alot more bag for your buck.
I am sure they can be done cheaper, but here is an engine where you wouldn't want to cut any corners.
For someone like Blake, a p-port has proven to be successful, You may want to consider things. I am sure for yoru $4K budget you can get alot more bag for your buck.
#23
Originally Posted by Snapshot
Peripheral ports are just a little harder to build than street/bridge ports but where the hell are you going to drive it? As I understand it- Peripheral ports are exclusively race engines - not to be domesticated for the street.