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-   -   My JC Cosmo buildup (https://www.rx7club.com/20b-forum-95/my-jc-cosmo-buildup-285719/)

råtassen 03-22-04 11:28 AM

My JC Cosmo buildup
 
Hello Guys!!

Cosmo Owner from Norway here!

I have a 1990 model JC Cosmo WIN JCESE-100914
For about three years I have driven it original, but this winter I have rebuilt the engine and transmission.

The Engine has been streetported and have FD exhaustsleeves. I have used Hurley 2 piece apexes and the engine has been fully balanced. It was 40 grams wrong!!!!!

I have a Greddy T88-34D turbo and are planning to the stock ECU (RE-Amemeya modified) and Greddy E-manage piggyback.

I have 1600cc injectors, extreme fuesystem, SX pressure regulator and a fuel filter.

The IC and radiator is made by Plazaman in Sidney. Polished. Both as big as it can get. (IC is 6" thick)

Brakes are Willwood superlite and 330mm discs made by Pac Performance in Sidney.

The seats are Rx-7 FD.

Yokohama tires 285-30/18 on 10" back and 245-35/18 on 8,5" in front. Wheels are from Artec.

Tein Coilovers and strut tower bars from Cosmo Owners Club in Japan.

1 oilcooler to the transmission and 2 for the engine. Everything with XRP connections.

Ferrita Exhaust system. lifetime warranty. 4" downpipe...down to 3" under the car and twin 2,5" to the rear end.

Stereosystem is a mix of everything.

In about a week I will attemt to start and make it ready for a big autoshow in the neigbour country, Sweden.
Wish me luck!! I think I will need it:-)

:D

råtassen 03-22-04 01:03 PM

sidepic

neofreak 03-22-04 01:04 PM

pretty

råtassen 03-22-04 01:10 PM

backpic

råtassen 03-22-04 01:12 PM

enginebay

råtassen 03-22-04 01:14 PM

turbo

råtassen 03-22-04 01:18 PM

intercooler ++++

fi addict 03-22-04 01:19 PM

OMG ...damn thats not fair! but it sure is classy. inside pic please :) tranny rebuilt or swap to manual?

OC94Rx7 03-22-04 01:21 PM

Best of luck when you go to Sweden. I think you have done a great job. Your motor looks awesume. Do you have any HP numbers?

Again...good luck!

OLiver

råtassen 03-22-04 01:21 PM

intercooler and oilcoolers

råtassen 03-22-04 01:24 PM

ignitors, dump valve......

råtassen 03-22-04 01:26 PM

fuel and oilfilter

råtassen 03-22-04 01:53 PM

downpipe wrapped

råtassen 03-22-04 01:56 PM

build of exhaust

råtassen 03-22-04 01:59 PM

inside.....stereo in the door and Momo steering wheel
(a pic befor FD seats and E-manage

råtassen 03-22-04 02:02 PM

brakes

råtassen 03-22-04 02:05 PM

the stereo

råtassen 03-22-04 02:08 PM

the gauges (some of them......)

råtassen 03-22-04 02:22 PM

the plate on the inlet says "MASSIVE THRUST BY MAZDA"

råtassen 03-22-04 02:24 PM

frontwheel

råtassen 03-22-04 02:26 PM

The engine should produce about 600 hp@1,0 bar (based on the flow figures)

I have rebuilt the autotranny and strengthend it. A company here in Norway called RATS has done the job.

frode 03-22-04 05:01 PM

Looking very good, Roy!

REVHED 03-22-04 05:10 PM

That's one beautiful Cosmo. :drool:

I just hope my 90 Type-S will be as good as yours one day.

Jeff20B 03-23-04 12:38 AM

The Cosmo is such a beautiful thing.

$150FC 03-23-04 09:17 AM

very nice.

i wonder why mazda never brought them over to this side of the pond.

fi addict 03-23-04 10:48 AM

im guessing mazda didnt bring them because..
too much power potencial
emissions
price tag might have to be too high for the time. (about 50k)

...oh and clearly wouldnt apeall to the US market :)


and people please dont send me to the 3rd grade for my spelling...please.

råtassen 03-23-04 02:46 PM

Hi

Afer what I understand Mazda did intend to bring it to the states. Big muscle car.......and so on.
There were different wieves on the matter within the Mazda organisation. Such as what to call the car.....(It is a EUNOS not a"Mazda")
In second gererations JC Cosmo you can see that the plates on for example the firewall was made to convert it to left hand drive.
It was of course a very expensive car at the time. about YEN 5 000 000 in Japan in 1990 I think.
It was made to take up the competition with BMW 850, Jaguar........
Many things were "new" on the car: The first with Sequential twin turbo, 3 rotor engine, on touch screen, satelite navigation system....... First with a lot and set the standard for the production years ahead.

-Roy
:p:

råtassen 03-23-04 02:56 PM


Originally posted by REVHED
That's one beautiful Cosmo. :drool:

I just hope my 90 Type-S will be as good as yours one day.


Hi

Love the color of your car!!! I whish my wasn't black!
It is pretty a problem to keep clean at all times.
Many times I have almost regreated that I didn't keep it original. It is a good and fast car original. I loved it and drove it "original" for three years. Just with modifications as exhaust and filter. With a ney exhaust the twin turbos really works well. My exhaust manifold cracked after a while though.
The great about the singel tubo convertion is that the enginebay gets a lot "simpler", not so "stuffed".

-Roy

rotaspec 03-24-04 02:08 PM

Well, if you want an original one, my 1990 Type E 20B is for sale. One of the first produced (#100078), only 57000km by one owner in Japan. PM me if you are interested.

råtassen 03-24-04 02:47 PM


Originally posted by rotaspec
Well, if you want an original one, my 1990 Type E 20B is for sale. One of the first produced (#100078), only 57000km by one owner in Japan. PM me if you are interested.
If I had the money I would:-) How much do you expect to get for it? Why sell such a car? It's the best!.......one of the best at least.
Here in Norway there are only 2 registered JC Cosmo's and a third has arrived, but no registration. Tha car id very hard to get approved....if they ever will approv it again. I got the registration because of the history value. by they only accept a few by this legislation. If I ever sell it, I will never ever get one again....so I will keep it and I am very satisfied by everything the car has to offer me:-)

-Roy

rotaspec 03-24-04 02:59 PM

I want NZ$10000 for it (plus freight). I think that is about 45000 Krone.
Cannot register it here, only option is to wreck it which would be a total waste.

råtassen 03-24-04 03:06 PM

I see!

What color is it?? Is a e-ccs? interior color?
I will mention it to a friend of mine who really want to buy one. He has just bought a Rx-8, but wants a JC also. You are Right about the 45000 kroner. I think it is a good price if the car is good.

-Roy

felix_is_alive 03-25-04 06:51 AM

that is one awesome freaking machine man , good work

Fatty_FC3S 03-25-04 01:02 PM

Why didnt they bring it here?

Its simple, americans dont want cars that are cool and that they "sorta dont need", they want cars that are fucking ugly and that they REALLY DONT NEED, like Ford Excursions and Hummer H2's. I mean, what could you possibly do with an amazing 50k car with a 3 rotor engine? Its just not equipped to deal with the harsh paved environments that require a lifted gas guzzling penis extender.

Makes me wanna cry. I wish cosmos came here, what a unique car with a unique motor! Well, at least i can see cool Cosmo's like yours to make me feel better...

rotaspec 03-25-04 04:46 PM


Originally posted by råtassen
I see!

What color is it?? Is a e-ccs? interior color?
I will mention it to a friend of mine who really want to buy one. He has just bought a Rx-8, but wants a JC also. You are Right about the 45000 kroner. I think it is a good price if the car is good.

-Roy

Its dark blue metallic. Type E (not CCS). Tan leather interior (in perfect condition). PM me your email address and I'll send some pictures.

sillbeer 03-26-04 06:40 PM

A friend sent me this link because I just picked up a 20b cosmo. Not sure on the year or trim level. How do I tell what trim level it is? It has the puke tan leather interior and gps system. A friend has a 13 cosmo parts car with dark brown cloth interior. I was thinking about swaping interiors but the dash looks like a big pain. The outside of the car is a metalic silver. Everything on the car is completely stock. I picked it up fairly cheap because it has a blown rotor. Anyways, i'm going to pick the car up on this coming up Thursday and will start working on it then. I'll post some pics later.

-Destin

RX-Heven 03-27-04 03:06 PM

:drool:
beautiful ride

rotaspec 03-27-04 03:10 PM


Originally posted by sillbeer
A friend sent me this link because I just picked up a 20b cosmo. Not sure on the year or trim level. How do I tell what trim level it is? It has the puke tan leather interior and gps system. A friend has a 13 cosmo parts car with dark brown cloth interior. I was thinking about swaping interiors but the dash looks like a big pain. The outside of the car is a metalic silver. Everything on the car is completely stock. I picked it up fairly cheap because it has a blown rotor. Anyways, i'm going to pick the car up on this coming up Thursday and will start working on it then. I'll post some pics later.

-Destin

If it has leather interior it is either a Type E, or E-CCS if it has the navigation screen in the center console. Type E just has the stereo and a/c in the centre console.

Maroon 90_GT4 03-30-04 02:14 AM

That is SICK!!!

fi addict 04-01-04 10:43 AM

i notice you said 600hp at 1 bar... about 50-100 less then my goal. What turbo is in there? I didnt see it in the post... damn those pics are great.
thanks for the inside picture

ooops greddy t88-something

and what RPM are you getting a bar at.

Im drilling everyone w/ questions so i get my setup done right the first time.


thanks and best of luck w/ the sweet ride!

råtassen 04-01-04 03:28 PM


Originally posted by fi addict
i notice you said 600hp at 1 bar... about 50-100 less then my goal. What turbo is in there? I didnt see it in the post... damn those pics are great.
thanks for the inside picture

ooops greddy t88-something

and what RPM are you getting a bar at.

Im drilling everyone w/ questions so i get my setup done right the first time.


thanks and best of luck w/ the sweet ride!


HI!

I havn't started the engine yet. Some problems have come up, so I don't know what rpm I will get a bar.
The Turbo is a Greddy T88-34D.

Will take probably about a month befor start. Have to rebuild the engine from start again.

råtassen 04-01-04 03:35 PM

My Welded manifold with wastegate

råtassen 04-01-04 03:42 PM

my Modified FD exhaustsleeves

Another thing about no more than 600 hp is that I then have to dowel pin the engine. I want low rpm and a lot of torque.....the engine is only streetported.

-Roy

projekt 04-01-04 08:46 PM

i want a cosmo! can i rebadge it as a lincoln Mark VIII? :)

felix_is_alive 04-02-04 11:12 AM

thats a nice manifold , pretty cool

bigb3433 04-02-04 12:01 PM

dude that car is so badass i love the styling and all the tech on it u also did a fantastic job modifiying it!!!!

frode 04-02-04 02:12 PM

Roy,

What was wrong with the 20B? Nothing serious I hope?

råtassen 04-02-04 05:16 PM

HI

Probably the thick center wall has cracked or something under the buildup of the enginecore. The watercoolant just poors right through the engine and into the sump.....
Very sad as I have to dismantle everything again and use new o-rings. The engine builder takes the responsebility and will rebuild it free of charge at least, but a lot of work to prepare everything again and wait some time.... Hope he can come to me and rebuild it in my garage......

-Roy

felix_is_alive 04-03-04 07:44 AM

i hear you brother , that sucks , at least he is taking responsability for it .......

råtassen 04-04-04 04:08 PM

Hey

Dismantled the engine today. Found a crack in the thick center wall. My enginebuilder will begin porting a new one by the end of the Easter. Then begin getting the engine together again. He is great. Very serviceminded.

Will begin to make some few other changes as well as the engine is out. Also much to prepare with gaskets and so on


More update later


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