20B Cosmo

[Shark]

WOW!

Please tell me this is going to be at Rotorstock.

please.

Gregor

[JamesFD3]

Not sure of the plugs Glen,as I have\'nt really had chance to look at it in detail yet.All I\'ve done so far is two oil changes in less than 150 miles! and a fresh Mazda airfilter which had to be ordered from Japan.
Will check the plugs later and let you know.

Cheers

James

[JamesFD3]

Glen,

Just whipped out the plugs and I have NGK BUR9EQ\'s Trailing and BUR7EQ\'s Leading,plugs look fine,usual light deposits with no sign of any fuel contamination.

Do you know if these are the correct plugs Glen?

Cheers

James

[antnicuk]

Thats a lovelly example,  they are a stunning car to drive.

We played with our donor 20b Cosmo before we broke it for the engine and box.  On a G meter we recorded a 0-60 time or 7.5 seconds.  We then threw away the air box and put a cone on it, took the cats out, put an electric fan on it to remove the coupling fan. Without touching the boost we got the 0 - 60 time to 5.5.  If you put a boost controller on it to maintain boost at 9 psi you get a further MASSIVE increase in power.  If you put a boost guage on it, you will notice that it peaks at about 9 -- 10 psi but quickly drops to 6 or 7. I assume the ecu does this via the duty solanoids.  These cars are stunning as mazda intended but have great potential. Its a shame mazda didnt sell them here but i think fuel economy has something to do with it. I have never driven anything as bad!

[clive]

Originally posted by Shark
WOW!

Please tell me this is going to be at Rotorstock.

please.

Gregor

This great looking car will be onm the MRC stand at Rotorstock and Japfest.

[JamesFD3]

I think it would be a crying shame to break one of these cars as a donur vehicle for the engine,unless of course the car was already accident damaged etc.
The Cosmo is an extremely rare machine in Japan now and preservation is the name of the game,some have been exported to OZ and a tiny few make it to our shores,most being 13B powered examples but I personally don\'t know of another E-CCS 20B model in the UK like mine.I think mine maybe the only example,cannot say for sure on that one though.

However tempting it may be to tune the engine as obviously the 20B has massive power potential when tuned correctly I\'ll be keeping mine totally standard apart from frequent oil changes and servicing.

Regards

James

[Glenn Butcher]

Originally posted by JamesFD3
Glen,

Just whipped out the plugs and I have NGK BUR9EQ\'s Trailing and BUR7EQ\'s Leading,plugs look fine,usual light deposits with no sign of any fuel contamination.

Do you know if these are the correct plugs Glen?

Cheers

James

Hi mate,  I\'ll check with Steve as he has an owners manual (in Japanese but you can read the plug type) - I\'m absolutely certain that 6\'s should be in the leading (from factory).  But again, it depends how the car is driven.  The theory is that as the engine isn\'t revved as hard as a 13B that it would need warmer plugs to burn the crap off cleanly.  I think 7\'s are in the trailing on the standard ones - this is what I have to check.

[JamesFD3]

Many thanks for your help with the plugs Glen.

I know what you mean about the driving style,comparing it directly with my RX-7,the 20B is alot more torquey and you don\'t really need to rev as high to get the performance as you would with the 13B.
A mate with a V12 Jag has driven the car and says it feels very similiar in terms of smoothness and power delivery.
Apart from the ocassional flooding the engine runs perfect.

Cheers

James

[Tim_Burgess]

I run 6\'s leading & 9\'s trailing in my 13b. I managed to understand that much from the owners manual.

I would definitely agree that the standard brakes are not brilliant if you push them hard - 2 laps of Castle coome and I didn\'t hve any!

Cheers

[Ultraman_Cosmo]

I\'ve just joined the Eunos Cosmo club now too, just bought the black 20B that was on Ebay Someone mentioned earlier that a 20B Cosmo was doing 0-60 in 7.5 seconds, I thought they were somewhat quicker than that? 5.9 seconds I had heard. How do others find theirs? I havent got it yet so don\'t know what\'s in store yet!

Phil.

[clive]

Real nice car you brought Phil, and it looked as if it was going to go real cheap when l looked at it on Ebay.

Many many thanks for bringing and shareing your Cosmo 110S to Rotorstock, people are still talking to me about your fantastic car!

p.s. please thank your mate with the RO80 for coming to Rotorstock for me as l didn\'t have time to sadly.

[JamesFD3]

Nice to hear of another Cosmo joining the ranks!They are awesome cars and are fantastic to drive.

Never knew there was one for sale on ebay though!! I did see a 20B for sale at Rotorstock for 4500 pounds,thought that was a bit cheap,owner perhaps needed a quick sale?looked a nice clean example though.
Mine is currently off the road being stripped for a rebuild,cannot wait to have her back on the road,Cosmo 20B\'s are real sleepers!!

Cheers

James

[Ultraman_Cosmo]

Well I picked the Cosmo up last night and currently have mixed emotions!  The first reason being that I have two months to pay back the money I borrowed to buy it! And there are also a couple of technical problems with it and I\'m hoping some of you who are knowledgeable on these may shed some light? Firstly the power, I\'m actually quite disappointed in the performance of it. It feels like the power is there but its just not delivering it if that makes sense, it hesitates a lot. If you floor it from a standing start it does very little at first, once the turbo\'s kick in it starts to move a bit but doesnt feel anything like a six second car to me. I follwed a V6 Ford Cougar on the M25 back home from picking it up, and when the bloke booted it I couldnt stay with him! I understand that there can be a million and one reasons why it may not be performing properly and it\'s impossible to diagnose just from this, is there anyone that may be able to look at it for me at some point? There\'s a bit more under the bonnet than a Ro80 and I dont know what any of it does! Another problem is until I got home I hadnt tried it in reverse. When reversing, it doesnt want to move, you have to rev it quite hard, then it starts lurching and bunny hopping. It\'s like there is some resistence in the transmission. The brakes are very poor, without even hard braking the brakes are wobbling badly, it obviously has badly warped disks although i see from the service record that they\'ve been previously skimmed. Are there any brake upgrades available? I know it was mentioned earlier on about fitting RX7 calipers? The last thing (not going into the niggly points at the mo) is the TV screen doesnt work, I just get a thin blue line like from a scope. Has anyone one attempted to replace these, either with another Eunos unit or a UK spec TV? I would think with the amount of front cuts I have seen it must be possible to get one from somewhere, I dont know of any spares sources as yet. Right, I wont ramble on any more! It\'s a beautiful looking car and I\'m glad I\'ve got to own one at last and hope with a little work, it\'ll meet my expectations!
Cheers.
Phil

PS, Clive, enjoyed the day, many thanks And James, it is the one from Rotorstock

[moakesr]

I hate to be the bearer of bad news, but be very careful with that transmission.

In *most* transmissions, reverse gear requires the highest hydraulic pressure, so it is often the gear in which you first notice problems.

Let\'s be positive and start with the cheap options, it might just need new transmission oil and a filter.  If you don\'t have a nice dust free garage, I don\'t suggest changing this yourself, absolute cleanliness is a must.  Make sure you get the right fluid, ie. Dexron II or Dexron III, the owners manual should tell you.

If it\'s really bust, I would imagine the best option would be a cosmo front end clip from someone like Tim at RX Motors, it\'s likely to be much cheaper than getting a tranmission specialist to strip down a gearbox he has never seen before.

I hope it\'s only fluid and filter, in fact 50% of autobox problems can be down to old or low fluid levels, so I have my fingers crossed for you.

As for the engine and power issues, I will let others who know more about Cosmo\'s make suggestions.

Best of luck,

Richard

[JamesFD3]

Hi Phil,

Sorry to hear that your car is not running 100%.Starting with the power delivery,a Cosmo 20B should be way faster that a V6 Couger so something\'s obviously amiss.After stripping mine down for a rebuild I\'d be willing to bet it\'s something on the turbo control side of things.The state of some of the vacuum hoses pulled from mine was shocking,no wonder there was no boost on the second turbo!! Mine had stonking midrange and then ran totally out of puff after 5000rpm.

Brakes on these are generally crap,way underbraked for 300bhp and 1640kgs!! Will look into this when the rebuilds finished.

Hmmmm,sorry to say that the reverse gear problem you have sounds serious,I know Glen Butchers 20B Cosmo suddenly refused to go into reverse and I\'m not sure but I think he either had it rebuilt or a new box was fitted,best to email Glen on this one though.The auto box fitted to the Cosmo is very complex,has the car been drag raced at any point in it\'s past?? This could overheat the autobox leading to serious damage.

TV could be a real pain to fix as there\'s more wiring behind the Cosmo E-CCS dashboard than the space shuttle!!best speak to a specialist about this.

Sorry to make this sound like doom and gloom Phil,I\'m sure most of the faults can be fixed but as I\'m quickly discovering with mine it ain\'t going to be cheap!! :-((

A Cosmo that is running 100% though is one of the best luxury cruisers in the world in my humble opinion so it will be worth sticking with the car.

Regards

James