i need to buy a new intake gasket, and uim->lim gasket for my 20b... from the pictures ive seen they all look to be paper (mazda learned their lesson with the FD band switched those to metal)... did they ever upgrade the 20b parts? anyway, where can i get replacements and how much?? thanks, heath

 

They are still paper. You can get them from MazdaTrix

3R-GSK-INT1......3R GASKET INTAKE......MANIFOLD TO ENG........$ 16.50
3R-GSK-INT2......3R GASKET INTAKE......BETWEEN MANIFOLDS......$ 10.60

 

Or you could go to autozone and buy the paper gasket material and cut your own. It will work the same.

 

thanks guys... i saw some on ebay but they wanted 38+shipping for both. im a little bummed that they are still just paper gaskets though... i guess there were so few they didnt bother upgrading them like the FD ones. anyway, thanks again... ill order some up

 

That doesn't look like Mazda OEM part numbers...


-Ted

 

and they dont seem to be listed on the site (maybe they are in a different section than the one im looking in???)

 

i got mine on ebay, and the guy sent them promptly and they came in perfect condition. they are paper with plastic rubber compound surrounding the flow ports in the gaskets.

 

As for the 20b intake gaskets,
We make intake gaskets for 20b out of mild copper stock, .030" thick, cut on a water jet machine. Great for very hi boost engines & street use also.
I also make them for the 13b REW, Cosmo, & Turbo II.
We keep them in stock. If interested, let me know. I dont know how to post pics on the forum, therefore I can't show them, but I can send a pic. directly by E-mail.
If some one advises me on how to post, I'll gladly put them up.
Thanks,

GT-1, 20b

 

As to the 20b Intake gasket ???
We make them out of .030" mild copper stock, curt on a water jet machine.
I aslo make them for 13b REW, Cosmo, & Turbo II. We keep them always in stock.
They handel Alcohol Turbo engines running 50+ psi boost.
If interested, let me know. I dont knoe how to post pics. in the forum, but I can send by E-mail.
If some one advises me on how to post pictures, I'll gladly put them up.
Thaks,

GT1-20b

 

I'm interested in the gaskets, could you email me please at Rawby7@aol.com.

Thanks

 

You need to goto this page to enter items found in the paper or full catalog that are not on the website.

http://www.mazdatrix.com/cartinput.htm


OE Part numbers
Intake Gasket up NF01-13-111A
Intake Gasket low NF01-13-112A

 

how much for those copper gaskets? to post pics, go to www.photobucket.com and put them on that website for free, it will give you a http:// address for that picture, which you then put in the body of your text on the forum with [IMG] on both sides of the address

[IMG]http://____[IMG]

 

id like to see some pictures of the gaskets as well... id be interested in a set. how much? -heath (firewire5@hotmail.com)

 

Thanks for the Imfo on posting pics. I will try to post them this week end. if I'm not succesfull, I'll get a fellow forum member to help next week.

GT1-20b

 

GT1-20b, I'm also interest'd in the cooper gaskets,what are the prices?

 

Well, I've tryed to post them up! I got as far as the ALBUM pics. up on photobuckets.com
There are 2 illustrations of the copper gaskets, one of a 93 REW, & a second one of a Ported 20b with the outside perimeter drawn but not cut.
This gasket is fron a Drag race engine & is not fully detailed like the ones for sale.
I will post up the fully finished un-ported gaskets next as I get better at this.
I've also put up a pic of the Emmision block off plates "kit" for the REW engine, and also an exhaust manifold I make for the 3rd. gen. Rx7
The ALBUM address is: http://img.photobucket.com/albums/v112/GT1-20b/
The prices for the gaskets are: $ 34.95 for the 93' REW, and 49.95 for the 20b.
Any ??'s please write or call (305) 970 1774.
Thakn You,

GT1-20b

 

Do you sell the UIM/LIM gasket also?

 

No, I've not had a request for the Upper Intake Gasket ever, although, I did make a "Gasket / Heatshield" combination once.
I could easily make them if there is a market for them. we have a Waterjet service, and makinf them is not a problem.
I get the paper ones from Racing Beat, I supose We could make a few.
We make Intake & Exhaust flanges for all types of engines in either 3/8, or 1/2" aluminum for intakes, and 1/2" Mild steel or Stainless steel for exhaust.
But I ONLY advertise the Mazda Rotaries because, thats my specialty, and passion
I 've be posted some pics of our Rotary products, and as word gets arround, & more people become interested I will expand the Album.
Our Website w/ all our products should be up in about 2 to3 weeks.
Thakn You.

GT1-20b

 

i saw the 13b single turbo exhaust manifold... any chance of a 20b one being made for sale? (i noticed your bi-turbo 20b... why did you decide on 2 turbos as opposed to 1, or 3? it seems that 3->2 would be more inefficient). anyway, yeah im interested in the gaskets (upper and lower)... depending on the price of course.

 

The reason for 2 turbos is PACKAGING. This is a "Street car" with a target power rating of 700 to 750 Hp. on pump gas at 17 psi boost on low compression.
With one Turbo, You have to size the Turbine Housing (Hot side) quite large as to not choeck the engine on the top end ( Hi Rpm ). Them the engine becomes very "peaky" in throtle responce & drivability, in other words, there is boost, but no Turbo responce, until mid range, then it comes in ALL at once and becomes harder to drive fast.
3 Turbos is just a nightmare of charge lines & oil lines plus it generates too much radiant heat to the lower Intake manifold, which inturns lowers the thermal efficiency and creates for needing a REFRIGIRATOR as an Intercooler.
The combined AIR FLOW of 2 Turbos is evident. Each Hybrid Turbo a can sustain about 400 Hp. these turbos are kind of like what You would use in a powerfull street Honda
Them there is the EFFICIENCY of 2 smaller turbines (T3)'s instead of a very large TO4 "Q" wheel needed for proper choeck flow w/ a huger A/R .
Each Turbine wheel gets the exhasust energy from 1 and 1/2 rotors
The spool up time is NON-EXISTANT. .......Instant Boost. With very little BACK PRESURE, and low radiant heat.
And back to PAKAGING, this set up is very "tidy" and allows plenty of room for working arround the Turbos & engine bay.
After a long & carefull study of ALL possible Turbo arrangements, we concluded this was the best engineered package for a daily driver, dependable "Street fighter" .
Hope I answered all questions. Oh, and its attached to a "Getrag 6 speed" from a twin Turbo Supra.
Best Regards,

GT1-20b

 

All I can say is "PICS"

 

Per your request :
Just posted up some pics of my SCCA GT-1 3 Rotor Rx7, The 20b race engine on a stant & on the Dyno, and the Mazda to Supra gearbox adapter & fly wheel.
Go to my Album at: http://img.photobucket.com/albums/v112/GT1-20b/
Enjoy !

GT1-20b

 

Nice pics how is that Supra tranny working out for you, I once consider'd swapping out my 99 tranny for Supra tranny but I think I'm just going to have my gears cryogen'd

 

sorry to go off on a tangent... but i wanted to know more about your turbo header setup. do you have a 3:1 collector which then divides the exhaust gas into two and then goes to their respective turbos... or do you have 1 turbo on each outer rotor, and then just split the exhaust from the center rotor in 2 and add that in separately? id love to see a picture of the actual header. would you be interested in coppying it to sell? sounds like a good solution... and having two separate exhaust pipes from each turbo would make my street application (where i need to run a cat (or 2) a little easier. thanks, heath

 

one last question that i have for everyone here is about getting all of the stock gaskets that go on the stock turbos... where (for those of you who are sticking with the twins for now) do you get them?