Some Pics Of My RX-7 Project
04-05-2008, 11:35 AM
#41
3.0 BAR
Join Date: Dec 2005
Posts: 2,299
Re: Some Pics Of My RX-7 Project
Originally Posted by Aaron Cake
Mazda apex seals are generally the "best" seal. Mazda has put a lot of work and research into building a strong seal that lasts hundreds of thousands of miles yet doesn't chew up the rotor housings. They've recently switched back to a two piece design with is stronger then the 3 piece seals that all 2nd gens came with. They are a good choice.
Atkins makes some nice aftermarket seals that have been used for many years with good results. They are a bit "softer" then standard Mazda seals so they will break into used housings much more quickly. They are a good choice if you are assembling an engine with used parts. A little cheaper as well.
But before you tear it apart, make sure it's blown. A poor man's compression test is easy:
http://www.aaroncake.net/rx-7/blown.htm
As for the slicks, I don't think I'll ever bother. To me it's no longer a street car when things like that are swapped out at the track. Saying the car ran low 11s is nice, but then having to explain that it was on a set of slicks is a little annoying.
Atkins makes some nice aftermarket seals that have been used for many years with good results. They are a bit "softer" then standard Mazda seals so they will break into used housings much more quickly. They are a good choice if you are assembling an engine with used parts. A little cheaper as well.
But before you tear it apart, make sure it's blown. A poor man's compression test is easy:
http://www.aaroncake.net/rx-7/blown.htm
As for the slicks, I don't think I'll ever bother. To me it's no longer a street car when things like that are swapped out at the track. Saying the car ran low 11s is nice, but then having to explain that it was on a set of slicks is a little annoying.
04-06-2008, 01:33 AM
#42
0.0 BAR
Join Date: Jun 2003
Posts: 0
Re: Some Pics Of My RX-7 Project
Originally Posted by Aaron Cake
You're telling me which engine to use? 
Just joking...The 20B is a "large" displacement engine designed to motivate a large car (the Eunos Cosmo). It produces a shed load more torque then the 13B and due to it's large displacement, will make much more power with a lot less port work and boost. With a GT40R, a stock port (though I will street port it) 20B will lay down nearly 600HP without even breaking a sweat. And it will do it for 100,000+ miles. In a heavy car like the DeLorean the superior torque curve of the 20B will be more suited, and with a small turbo like the GT40R boost will be instant.
I took the go-kart apart several years ago. It had sat in the driveway for a while and had degraded a bit from disuse. I still have the engine and most of the parts which I'm sure there will be a use for in the future sometime. I've been thinking of doing an electric go-kart but I already have too many projects.
Just joking...The 20B is a "large" displacement engine designed to motivate a large car (the Eunos Cosmo). It produces a shed load more torque then the 13B and due to it's large displacement, will make much more power with a lot less port work and boost. With a GT40R, a stock port (though I will street port it) 20B will lay down nearly 600HP without even breaking a sweat. And it will do it for 100,000+ miles. In a heavy car like the DeLorean the superior torque curve of the 20B will be more suited, and with a small turbo like the GT40R boost will be instant.
I took the go-kart apart several years ago. It had sat in the driveway for a while and had degraded a bit from disuse. I still have the engine and most of the parts which I'm sure there will be a use for in the future sometime. I've been thinking of doing an electric go-kart but I already have too many projects.
04-06-2008, 12:05 PM
#45
0.0 BAR
Thread Starter
Join Date: Mar 2008
Posts: 39
Re: Some Pics Of My RX-7 Project
Originally Posted by 78NOVA
ill check the engine again when i get home after school. but as for the slicks though, at least one day on a set is well worth it. even a set of drag radials may improve you et's by a marginal stature. i want to get some drag radials for mine. since its only a typically dry weather car for me. i want them more or so for looks and for fun. all the ricers in my area are like lets race!!! i just sit there like i dont here them.... maybe if i was making 200hp i would but the measly 100 isnt the greatest ever out of a stock 12a.
I don't really care much about what the ricers think.
I don't street race so they can sit there and rev all they want. Frankly I think it's amusing that they believe their fart-can equipped Honda will be any match for an RX-7 of any kind. And with a car that idles like mine you'd think they would have a clue. I usually just give a quick rev to nudge the turbo a little and they settle right down. 
Originally Posted by crxvtec91
The main reason I say they suck is because there hard to keep together. I have a ton of friends that have swap 20b in to there fc and fd and could not keep them to gether. Also these guys have been working with rotary motors for 20+ years. I also use to work at a engine importer, I separated and delivered these motors to a ton of race shops. They all said the same thing. Don't get me wrong I would love to have a fd or a 13b to play with but the 20b< 13b in my book.
Originally Posted by bigdaddyvtec
Car spunds good
setup is clean
setup is clean
13.40s arent low 13s....
You need a haircut
Id expect alot more out of the 4088, and am curious as to the 176mph malfuctioning lights,
As I am in Canada, the trap speed is in KM/H. It's odd, sometimes at that track they have it set to MP/H, sometimes KM/H.
04-06-2008, 03:11 PM
#47
3.0 BAR
Join Date: Mar 2006
Posts: 5,631
Re: Some Pics Of My RX-7 Project
Originally Posted by Aaron Cake
As I am in Canada, the trap speed is in KM/H. It's odd, sometimes at that track they have it set to MP/H, sometimes KM/H.
nig
As for front page... If that 11.20 ef with the fucked up scoop and tin snip cut fenderwells doesnt make it to the front page... We ALL need to re evaluate why we are here.....
MAKE IT SO XENO!!! That thing is Awesumsauce
04-07-2008, 05:36 PM
#48
0.0 BAR
Thread Starter
Join Date: Mar 2008
Posts: 39
Re: Some Pics Of My RX-7 Project
Originally Posted by fe3tcourier
No-one has said it yet, so I will...
FRONT PAGE! :-)
I like the home made everything too. What compression ratio are the rotors in it?
FRONT PAGE! :-)
I like the home made everything too. What compression ratio are the rotors in it?
04-08-2008, 02:05 AM
#49
1.0 BAR
Join Date: Feb 2004
Posts: 345
Re: Some Pics Of My RX-7 Project
hey finally glad to see you open up to this side of the club. i've seen your work start to finish so.. umm glad to see you jump along here on HMT.
don't forget to put that nasty avatar of yours.
(thats his avatar on rx7club.com)
don't forget to put that nasty avatar of yours.
(thats his avatar on rx7club.com)
04-11-2008, 07:43 AM
#50
0.5 BAR
Join Date: Jul 2007
Posts: 89
Re: Some Pics Of My RX-7 Project
Originally Posted by Aaron Cake
However anytime I hear of someone having a problem with a rotary, it tends to not be the engine's fault.
so true.
i was a liitle surprised to see you on here Aaron. welcome... i hadnt noticed ANY political BS on the club... I will have to look a little closer. LOL
