Project Pay2Play: My Eunos Cosmo has arrived!

[Antoine]

AND there are plates to rig up ford C4 or GM turbo 400 transmissions to the 20B.....so if the cosmo box dies, he can go to something tough - or he could just put a liberty transmission on it and be done.....

Always going for the hardcore choice...(thumb)

The good news is there are proven options and the C4 & Turbo 400 are widely known for adaptability & durability...I'm sure there are a bunch of companies that can upgrade them even further...As for liberty transmission...Do you mean from this company www.libertysgears.com?

Speaking of trannys...I'm sure there are a decent amount of options from the "manual" world as well...If I ever decide to go that route. Plus...I'm sure there are some "homegrown" tranny upgrade options here in Japan...

Bottomline...If I get to an upgrade point where the stock tranny can't "hang" any longer...I would want a tranny that is comfortable for the street (just like the stocker) but capable of handing gobs of power.

Ps...Making this post reminded me of an online article I read about a custom Cosmo...From AutoSpeed.com that was actually co-written by David Morris (DMRH).

Here is an interesting excerpt related to trannys & rearends:

With a TurboSmart e-Boost set to deliver 14 psi and with pump fuel in the tank, Gary's Cosmo has topped 420hp at the wheels during tuning. That equates to nearly 550hp at the flywheel.

The standard transmission- a 'high torque' Jatco unit - was recognised as a weak link in the armoury, so it was treated to a comprehensive (ie expensive) revamp. The trans was fully rebuilt and 'tricked' by The Transmission Centre. An aftermarket transmission fluid cooler is also installed and, so far, the trans has performed without glitch. The same can be said of the standard 3.9:1 factory LSD.
* http://autospeed.com/cms/A_1984/article.html

So in other words the stock tranny is fine until you move way beyond the stock turbos and start pushing over 400whp which is inline with my estimates.

It's interesting to note that instead of swapping in a beefier tranny, they beefed up the stocker's internals and added a tranny cooler...Good to know that combo held up (at least at the time the article was written) and that the stock rearend seems to be fine with all that power. (2thumbs)

Thinking about it...I'd prefer to upgrade the stock tranny's internals before swapping in a "foreign" tranny...That way I could still retain that original look & feel of the factory unit.

 

[LordWorm]

the C4 and T400 (or powerglide if you can live with 2 gears!) are pretty tough... and its absolutely NOTHING for auto trans shops to beef them up to support well over 1000hp... which is more than you'll ever need.

Anyway - most of what has been done to those auto transmissions, generally translate well to other auto boxes...so getting the cosmo box to withstand big slugs of power is probably not going to be overly difficult.

As for the liberty trans, yeah, talking about that company..they do a clutchless drag racing trans that most of the hardcore guys use in our sport compact series...

Really though, it'll depend what kinda power you are after.....by the time you get to gearbox killing territory, you would have probably needed to go to some big scary port job and a massive single turbo - which is not what you want to do because its a cruiser, not a drag rocket...

 

[Antoine]

big scary port job and a massive single turbo - a drag rocket...

Yeah but you wouldn't mind seeing me do that...

But you're right...I'm going for the Cosmo "supercar" here not a 7 second Cosmo with enough power to spin the earth (but wouldn't that be a sight to see!).

Thanks for bringing it up though...Got me thinking about future options...Good stuff! (thumb)

 

[DMRH]

G'day mate.

Great to see your Blitz unit installed. It really brings the engine alive.

BUT..............

Dont over do the boosting unless your intake + exhaust can handle the flow. if they cant then that will give you the "restrictive" feeling when the boost is raised. In testing, we have found the factory fuel cut kicks in around 0.72 - 0.78 BAR depending on response speed of the wastegate & boost rise.

I think there is a pic of my Cosmo on the dyno in this thread. You can see the boost dropping off as the revs rise despite the EBC trying to hold it open. Reason...... the turbo's simply are running out of flow & cant maintain 0.9 BAR after 6000rpm due to restrictive flow capacity.

Worth a thought, the FD turbo's flow 20% better than the JC turbo's & the JC ones have an extra rotor to feed. (dunno). Also the FD intercooler flows 330cfm to the JC intercooler 280cfm. Both pretty lame for increased boost flow.

I'm not sure but have you got a chipped ECU yet to eliminate the speed + boost cut & add a more aggressive fuel/IGN map. This is a very important mod for your Cosmo that can't be ignored. If you want more flow, then get the team from Knightsports to high-flow them for you. Dont do a single turbo, you will lose the easy going driveability of the engine & regret every Yen you spend doing it.

REgards

 

[DMRH]

Bust out a COLD ONE (cheers)...It's UPDATE TIME!

Starting things off with some quick sneak peek pics of the Stage II Mods...Enjoy

RE-Amemiya steering column gauge pod (painted to match custom navi/aircon face plate) + 52mm Defi "Racer Gauge"...Note my point & shoot is focused on the background making the Defi gauge appear a bit fuzzy but trust me...It's really sharp and the contrast is amazing!

I love the look of your column mounted boost gauge. It was a 50/50 for me when I did mine on which way to go. Either way they both look good. Very classy, well done

 

[DMRH]

Worth noting.............

I am talking to a fabrication company here in Sydney to produce a high flow Dump pipe to suit the 20B-REW turbo's on a Cosmo.

You can get them for the FD turbo's but not the JC items. This company already makes complete stainless systems for the RX-7 with Dump pipe & their work is easily the best in Oz so I have no doubts on their quality.

Word from them is...... They can take their high flow FD Dump pipe, change the angle, stretch it here & their then flange it to suit the JC application & bingo. An extra 20+% flow. More boost up top when the turbo's would be struggling to flow the exhaust pressures means more power.

FD guys quote 5% - 8% power gains when they fit them to their RX-7 sports exhaust systems so I would be expecting the same with these.

My aim is to have 10 made first up. Keep one for me & sell the rest.

Here is a pic of a FD dump pipe from Knightsports so you know what I mean

REgards

 

[Antoine]

G'day mate.

Great to see your Blitz unit installed. It really brings the engine alive.

BUT..............

Good to see you on the Forums again, Dave!..and yes...The Blitz SBC really does do wonders for the 20BTT! (2thumbs)

Dont over do the boosting unless your intake + exhaust can handle the flow. if they cant then that will give you the "restrictive" feeling when the boost is raised. In testing, we have found the factory fuel cut kicks in around 0.72 - 0.78 BAR depending on response speed of the wastegate & boost rise.

I think there is a pic of my Cosmo on the dyno in this thread. You can see the boost dropping off as the revs rise despite the EBC trying to hold it open. Reason...... the turbo's simply are running out of flow & cant maintain 0.9 BAR after 6000rpm due to restrictive flow capacity.

Interesting point about the intake, exhaust and flow issues...I'm currently running an AutoExe CF ramair intake and Mazdaspeed exhaust (the exhaust was installed by the previous owner)...Combined with my mild but potent boost settings...The current setup feels really strong in Auto mode.

It's Manual mode that I have yet to dial in...Although, I've only had time to try two different settings.

Someday I'd like to get a whole new custom exhaust system with lots of flow and great sound but quiet enough for the street. That said...I'm very satisfied with the Mazdaspeed exhaust I have now...I can FEEL & HEAR the fact it has decent flow plus it sounds really nice.

Worth a thought, the FD turbo's flow 20% better than the JC turbo's & the JC ones have an extra rotor to feed. (dunno). Also the FD intercooler flows 330cfm to the JC intercooler 280cfm. Both pretty lame for increased boost flow.

I heard the that the FD turbos flow better than their earlier cousins in the Cosmo but 20%!?!? Plus more cfm from the FD intercooler!?!? On the positive side...The 20BTT still kicks major ass even with basic mods, stock turbos and intercooler...which means basically...The sky is the limit!

Time to start dreaming about (and selling body parts for) major upgrades like a custom high-flow FMIC, upgraded stock turbos (like what BNR does) and running a 3-core radiator to keep the beast cool...Then going with some sort of EMS to make the most of all those mods.

Speaking of BNR...I believe you mentioned them...Is this the shop you were talking about that can upgrade the stock turbos while maintaining the stock mani and mounts etc...http://www.bnrturbos.com ?

I'm not sure but have you got a chipped ECU yet to eliminate the speed + boost cut & add a more aggressive fuel/IGN map. This is a very important mod for your Cosmo that can't be ignored. If you want more flow, then get the team from Knightsports to high-flow them for you. Dont do a single turbo, you will lose the easy going driveability of the engine & regret every Yen you spend doing it.

REgards

I haven't ordered or installed a chipped ECU...I've thought about it but I should actually check if my Cosmo has been "chipped" by the previous owner...That would definitely be a nice surprise!

The problem with going the "EMS" route is the cost as well as the added potential for complications but you can't deny that going with a quality EMS unit...Installed & tuned by an EMS Master is the best way to go to get the most out of your engine & ride.

It seems to me that it's better to do major power upgrades first...Then drive within the "safety zone" until you have enough funds and time to have an aftermarket EMS installed and tuned...In order to bring out the full potential of your setup.

I believe that everytime you change or upgrade something power or engine related...You have to have the whole system retuned!

Now about the "Single Turbo" craze...Not to worry...This project is all about real world performance and I want to enhance the Cosmo...Not turn it into a drag beast / dyno killer...Although big honkin' turbos are cool...I perfer to see them in dedicated race cars.

I love the look of your column mounted boost gauge. It was a 50/50 for me when I did mine on which way to go. Either way they both look good. Very classy, well done

Thanks!

I'm glad to know you dig the column setup...I remember reading on your site how you set up yours which I think is very cool...Ultimately, I chose to go with the column pod because I knew it would be easy to read even with a quick glance and that it matches the Cosmo interior well while giving it a slightly more "performance" oriented look...Plus with Defi's latest gauges that fade to black when the ign is off...It acts just like the stock gauges.

Worth noting.............

I am talking to a fabrication company here in Sydney to produce a high flow Dump pipe to suit the 20B-REW turbo's on a Cosmo.

You can get them for the FD turbo's but not the JC items. This company already makes complete stainless systems for the RX-7 with Dump pipe & their work is easily the best in Oz so I have no doubts on their quality.

Word from them is...... They can take their high flow FD Dump pipe, change the angle, stretch it here & their then flange it to suit the JC application & bingo. An extra 20+% flow. More boost up top when the turbo's would be struggling to flow the exhaust pressures means more power.

FD guys quote 5% - 8% power gains when they fit them to their RX-7 sports exhaust systems so I would be expecting the same with these.

My aim is to have 10 made first up. Keep one for me & sell the rest.

Here is a pic of a FD dump pipe from Knightsports so you know what I mean

REgards

Definitely worth noting especially since "flow" is becoming an increasingly important point for future performance...I appreciate the heads up and I'm very interested!

How & where do you plan on setting this up...Will it be GB style?

I'm looking forward to more info and updates...Thanks!

 

[Antoine]

Quick update...

>> Had a meeting with my friend at the Mazda Dealer today...The Cosmo will be there for a while to finish Stage II and begin Stage III mods. Full details to be posted later...

>> Went on a day trip to Kyoto...

 

[Austerror]

Excellent progress Antoine.

I am looking foward to your dyno number. I also agree on keeping it drivable. I don't really see much point in running 1000hp on a street car that you might drive to the shops once in a while.

DMRH I'll buy one of those dump pipe setups, if you get 10 made.

 

[bbrich57]

AWESOME, Antoine!!!

 

[JDM-P5]

Sick....as usual.

 

[Antoine]

Excellent progress Antoine.

I am looking foward to your dyno number. I also agree on keeping it drivable. I don't really see much point in running 1000hp on a street car that you might drive to the shops once in a while.

DMRH I'll buy one of those dump pipe setups, if you get 10 made.

Thanks man...Count me in for the DP GB as well (thumb)

AWESOME, Antoine!!!

Sick....as usual.

Big thanks for the positive feedback guys!


Sad news though...It seems AutoExe is no longer making and selling their coilover suspension setup for the Eunos Cosmo...

コスモ（ＪＣ）用

I was planning on ordering this for stage IV but now it seems I'll have to either...

* Find a shop that happens to have a new set still in stock (like looking for a needle in a hay stack)

* Search the Japanese auction sites

* Have a set custom made? (eek)

I really like the AutoExe setup because it was designed for the EC and it seems to offer a nice blend between serious performance and comfort.


In other unfortunate news...Since Aug...I've been noticing a slight rattling sound coming from the rear deck when playing music with some decent base...I suspected that either something had come loose or something was wrong with the rear speakers.

Turns out that the rear speakers have tears...In other words, they are starting to prepare for the journey to speaker heaven. Keep in mind, these are the original factory speakers that came with my EC when it was new 13 years ago and up until recently, they sounded damn good!

Given this recent news...I think I might fast track upgrading my sound system to stage IV status and I've already got some ideas...(laugh)

I'm pretty sure I'll have to modify the stock speaker mounts to handle high quality modern speakers...Making this a great chance to get creative and consider a custom setup!

I've already got ideas for a new rear deck...

Speaking of the rear deck...I'm going to find out if this bad boy is still available...My only concern is how to make it complement the interior instead of sticking out like a sore thumb...If I go with a custom setup...Maybe I can make it work!

Here's what it looks like with the stock rear deck (not my Cosmo)...

Updates hopefully soon!

 

[autoxes]

After 4 years without a ride in Japan and months of paperwork BS...It was time to pick up my MAZDA...A 1995 Eunos Cosmo 20B Type-SX!

I just now read this from the first post in your thread. Why did it take so long for you to get your car? What kind of paperwork was involved? Was the car imported or something? The only reason I ask is that I may very well end up moving to Okinawa at some point in the not too distant future, and would likely take the opportunity to net myself a semi-rare (in the US) ride.

 

[JDM-P5]

Welcome to being an American driver in a foreign country.
It took my car 2 months to get here and I couldn't (technically) drive it for 1.5 months because I was waiting on inspections and crappy BS paperwork too. It's just part of life.

You won't have too much of a problem though....if you buy a car there...it's all about registration and getting your Y plates...going to the Shaken centers...getting your JCI etc.

 

[DMRH]

Sad news though...It seems AutoExe is no longer making and selling their coilover suspension setup for the Eunos Cosmo...

Given this recent news...I think I might fast track upgrading my sound system to stage IV status and I've already got some ideas...(laugh)

I'm pretty sure I'll have to modify the stock speaker mounts to handle high quality modern speakers...Making this a great chance to get creative and consider a custom setup!

I've already got ideas for a new rear deck...

G'day mate

Bugger about the suspension.

We have these custom sets made for the Cosmo here down under. Let me know if you like them.

On the speaker subject. I'm surprised your factory 2-OHM rears have lasted up until now. They usually fail a lot earlier.

When I installed my Pioneer rears (6x9) I used silastic to hold the speakers to the mounts & then the mounts to the rear shelf.

REgards

 

[Antoine]

I just now read this from the first post in your thread. Why did it take so long for you to get your car? What kind of paperwork was involved? Was the car imported or something? The only reason I ask is that I may very well end up moving to Okinawa at some point in the not too distant future, and would likely take the opportunity to net myself a semi-rare (in the US) ride.

Thanks for checking out my thread...

It took me a while to get a car for several reasons...Mainly, I didn't know at first if I was going to stay in Japan for the long term and also...I didn't need a ride...Once I realized that I wanted to live in Japan for the long term...I spent a while deciding which car I wanted most...Eventually, I knew that the Eunos Cosmo was ride for me.

The Eunos Cosmo was only sold new in Japan although you can find individual examples exported to other countries in "pre-owned" condition.

Even though you can find the most ECs in Japan, they have become extremely rare here...I've only seen two on the road in 5 years...I've seen quite a few more Ferraris, Bentleys, Lotus' and even TVRs in comparison...

Welcome to being an American driver in a foreign country.
It took my car 2 months to get here and I couldn't (technically) drive it for 1.5 months because I was waiting on inspections and crappy BS paperwork too. It's just part of life.

You won't have too much of a problem though....if you buy a car there...it's all about registration and getting your Y plates...going to the Shaken centers...getting your JCI etc.

It's all about paying the all mightly YEN! There are a lot of fees associated with owning a car in Japan...The larger and more powerful your car...The more you have to pay just to own it!

G'day mate

Bugger about the suspension.

We have these custom sets made for the Cosmo here down under. Let me know if you like them.

On the speaker subject. I'm surprised your factory 2-OHM rears have lasted up until now. They usually fail a lot earlier.

When I installed my Pioneer rears (6x9) I used silastic to hold the speakers to the mounts & then the mounts to the rear shelf.

REgards

Thanks for the heads up on the suspension...I first noticed the setup on http://eunos.com.au/ in the "work logs" section...(thumb)

I'm going to try and locate an Autoexe set from a local shop off the net...If my search comes up dry...Then I will strongly consider your custom offering...

Speaking of custom offerings...Any update on the EC 20B dump pipe?

As for the speakers...Since learning that one of the rears was torn...I've been thinking about upgrading the sound system all together...I've already got some ideas...(laugh).

 

[Antoine]

It's MONDAY and time for an UPDATE!

So I had a chance to drop by the Mazda dealer today and check up on Project Pay2Play...Although the Cosmo was still at the Pro Audio Guy's shop, I sat down with my friend to discuss the current state of things...

On order

* Okuyama (Carbing) Front & Rear strut tower bars

<table class="font10px" border="0" cellpadding="1" cellspacing="1" width="644"><tbody><tr bgcolor="#999999"><td rowspan="2" valign="top">COSMO</td> <td rowspan="2" valign="top">JCES
JC3S</td> <td align="center" bgcolor="#999999">front</td> <td align="center" bgcolor="#ff9900">●</td> <td align="center" bgcolor="#ff9900">I</td> <td align="center" bgcolor="#ff9900">621 409 0</td> <td align="center" bgcolor="#ff9900">21,000</td> <td align="center" bgcolor="#ff9900">no photo</td> <td>

</td></tr> <tr bgcolor="#999999"><td align="center">rear</td> <td align="center" bgcolor="#ff9900">

</td> <td align="center" bgcolor="#ff9900">I</td> <td align="center" bgcolor="#ff9900">661 409 0</td> <td align="center" bgcolor="#ff9900">21,000</td> <td align="center" bgcolor="#ff9900">no photo</td> <td>interior processing is necessary.
(Rear deck)</td></tr></tbody></table>

StageII

Completed

* Lower steering column leather replaced with actual leather (turns out it wasn't leather but some sort of leather-like rubber material)
* Loose weatherstripping piece fixed
* ETC unit relocated in custom glovebox
* Full badge & grill set delivered
* Blitz SBC position adjusted in custom glovebox
* Speaker rattle confirmed and caused by torn rear speaker

Soon to be completed (hopefully)

* Make sure glovebox closes completely
* Custom glovebox Version 2
* Custom Ashtray/Defi mod
* Flatten navi vent mesh

StageIII

Planned for the future

* Paint center and side interior pieces to match the custom navi faceplate and Amemiya gauge pod
* Paint or replace mesh areas on factory aero kit
* Proceed with custom OLED name plate in factory aero kit
* Repaint side-view mirrors (stock color)
* Fix or replace window trim rubber around side view mirrors
* Make sure the entire factory aero kit is tight
* Remove any scrapes, scratches & chips
* Locate a high quality HID system that will work with the JC Cosmo's shallow headlights
* Clean all badges and tail pipes
* Clean, polish & coat rims
* Replace front tires?

Stage IV

Audio?

or

Suspension?

コスモ（ＪＣ）用

Next meeting

Later this week or next week.

Current thoughts

Pay2Play's plate is already full.

There is still a lot to do involving Stage II & III before moving ahead with audio or suspension upgrades...The good news is I can use that time to sort out a solid plan and save funds.

Stay Tuned!

 

[Berty]

Hi Antoine. I have been following this thread from the start and have just decided to join the forums.

With your suspension, also try and look at JIC's. I bought a set for the Cosmo for about $400 second hand. They still might make them new.

I am really keen to see this rear strut brace for the Cosmo. When you get it i would really appreciate some pics.

(sweet Cosmo btw!)

 

[altspace]

Hmmm....performance or ICE? Well, you plan to do both so do first whatever is more important to you.

 

[JDM-P5]

21,000!!

People in the US...just to give you some FYI...that's about $2,100.

Not cheap...but it is indeed quality.