There you have it. My car and my new motor


Before the removal



During the removal



Now for months of cleaning, powder coating and polishing All sponsored by Mt. Dew!

 

is the 13bre going into the red car?

 

Looks like the car is blue..

 

Yes, The blue car was the donor.

 

wow... that car wont be slow!

 

dayum! very nice man

 

YESSSSSSS!!!! hurry up!

 

Since I don't know diddly about the RE, is that a stock throttle body and elbow?

Install is looking fine.

 

You really should...
port it
ah...
port it
DISASSEMBLE the engine.
port it
You know, for a thorough cleaning, and assessment of its internal condition.
port it
Just to make sure everything is as A-OK as it could possibly be.

 

lol

 

Max7;
Nice Set-Up!
Where did you find that style Alternator Bracket?
Something off the shelf or self made.
Looks like you have some type of Tensioner on the Bracket.
Let us know.
Thanks
steve
sgieldon

 

There's More than enough power to be made with stock ports...

Stock Cosmo RE alternator bracket.

 

about time

What ECU are you planning on running?

 

if there was more than enough power to be made with a stock port then why in the world would anyone port their engine.. think about it

 

hmm...looks good...makes me want to hurry up and get mine all finished...

 

Its the stock Throttlebody and a modified elbow.

using a Haltech E6K

Pete : So you offering to come down, tear it apart, port it, and put it back together for $1.99?
I'm broke and still have more stuff to buy

I've been taking a ton of pix, and will be taking millions more.

 

For $1.99 I'd have to use my superspecial teflon-encapsulated multistrand-copper coolant seals, which I can't guarantee on a turbo engine. Yet.

As soon as I mow the lawn and find a pair of T3 turbochargers, and a standalone ECU, I might try 'em on the P-port. You know, as a form of muffling.

 

is there anything wrong with the blue FB?

 

Thats true,but not as relevant for a turbo engine since you can raise boost OR port to make power.400HP is completely doable even with stock TII ports.......and have you seen Cosmo ports?!They are frikken HUGE right out of the box!

 

superspecial teflon-encapsulated multistrand-copper coolant seals eh? I think I read something about there somewhere..................

The only thing wrong with the blue car is, its needs a motor, tranny, radiator, oil cooler, CPU, driveshaft, exhaust, fuel pump/filter, and a steering box, other than that its complete

 

true but wouldnt you make essentially more power with a ported turbo engine?

 

Yes,but that depends on what you plan on doing with the power.....
A high power but peaky engine will often lose to a broadly tractable,lower horsepower engine...depending on the application.

Porting shifts the powerband to the topend.The more you port,the higher up in the RPMS the power is made.Your PEAK horsepower will be greater,but your lowend power will suffer for it.Its not always about making more power,so much as making usable power.Heres an example...
If you take two identical engines and port the **** out of one and mildly port the other,youll have two very different behaving engines,despite the fact they are still essencially identical in size,displacement,compression,ect..
The highly ported engine might make 300HP at 9000RPM,but itll be flat on its face below 5000RPMS.Not a good thing unless your a road racer and never let off the throttle/keep the R's singing...
The mildly ported engine might only make 225HP,but itll make that power for a longer portion of the RPM range because the ports arent puking into each other as much in the lower RPMS.Broad,even,smooth power for longer.
A high power, but peaky engine will often lose to a broadly tractable,lower horsepower engine...depending on the type of race.
Turbo engines use porting a little differently.They force feed the engine its air,so extra porting isnt as needed for power increases.You can just turn up the boost, until the manifold pressure gets to the point where the aftercooling system cant keep up.Boost is simply a measure of resistance against the turbo.The resistance is the closed ports.The more they open,the less resistance,so you can get the same/more volume of air into the engine with less boost pressure and less reliance on intercooling.
This is good,but it also poses the same problem as with ported N/A engines.Too much porting will decrease lowend power/port velocity,which will serve to exacerbate the inheirent lag that is involved with turbocharging.Too much turbo lag will give you the same peaky,off-power behavior as the uber-ported N/A engine.I call it the Jeykl/Hyde personality.The engine will go from dead flat to insane power-rush half way up the tach.Some people like this effect,but its hardly the best way to build a fast car.....

This balancing act is EXACTLY why Mazda made the 6 port system on the N/A engines and the twin turbo system on the later turbo engines.Although complicated,they serve to create both lowend torque and good power near redline.Thats how manufactures want stock cars to behave.Flat,smooth,powerful at any RPM....

 

good info... thanks..

 

Ahh.... Seems like yesterday I was helping Mike build that car (over the internet ). It's a shame it's comming apart after about 100 miles worth of use but I'm sure Max will do it well.

Max, did you take it for a spin before you took it apart? If so, what did you think?

Also do you plan on using the T2 turbo or will a bigger single find it's way in there? I remember Mike could never get that sucker to stop leakig oil past the turbine seal. That's what he always whined to me about at least.. That and not being able to tune it, I told him to get a LM-1 but by that point I think he had lost intrest. His loss is your gain I guess. It's good to see it went to another Rx-7 club'er and good luck with it. I'm still glad I built mine and I'm sure you will be to when it's done.

Good luck.

 

Yah I remember reading all the posts when he was building it up. I was holding off when he first offered it as I was hoping he would keep it and complete it.

Yes I took her for a spin, the brakes are a bit locked so it pulled to one side a bit but I gave it a good 7psi run down the road, mind you with no front airdam/bumper or front fenders.
I like it, wow the boost came on quick and flying I was. can't wait for it in my car with grippy tires

I'll stick with the BNR turbo for now (depends on xmas bonus) I shortened the drain about 2 inches and got rid of about 95% of the smoking problem, it went uphill and seemed to pool in the drain. now I just get a puff when I let off of it. I'm going to rework the drain and have it flow better, also might get a tubular manifold to get it up higher and more forward.

I'm looking at the AEM wideband as it has a 5v output I can datalog on the haltech.

should be a fun winter project, I got everything I need so it will be done in the spring. all depends on how much changing/modifying I want to do......