This is only to give you an idea of what is possible to achieve with our micro polishing.

Hers are some pics of a shaft and rear stat gear that came from a siezed engine. These parts sat outside in the elements I think for about 1 year or more in a pile of scrap parts. I thought I would try some garbage pieces just to see how they would come out. Please keep in mind with this trial all we were trying to achieve was to clean these up and no real low RA polishing has been done to them.

 

Hey JT, thaks for sharing with everyone Any more updates?

 

Hello Sven

No updates as of now. Were putting the car back on the dyno tomorrow of wensday i hope. Since im going to the track this weekend. I will also have a compression check done at the same time.

The car is quite easy to start when cold, but the warm start map is not yet tuned perfectly, so it's a PITA to start when it's warm. Sometimes it req alot of fuel, and some other times it req less fuel, it's quite strange. Im guessing it's the E85, cause it was easy to start with regular fuel.

JT

 

Here's a front cover I did some polishing on just to clean it up. Again there has been no low value RA polishing done on this. Once I am set up I will polish the cover to a mirror
I have a few more pics of other parts I will post once I have time.

 

Alittle more uppdate Sven.

The car was on the dyno again yesterday, and we managed to finaly tune it on the same boost pressure all the way to 8000 rpm this time

And the results is 497rwhp and 512nm at 7650 rpm at 1.2 bar with the TO4Z and abit on the rich side on E85, and not to high ignition. 10.5 or so on from 7000 and out.

The mapping was done on flowjet i belive it was, similar to a Mustang dyno i think with dual wheels. The dyno has been tested against a Roto Test dyno, and the HP was almost excatly the same.

Now im at a track meeting, and the car pulls like monster. When i get back im gonna do a compression check on the engine and see how it is.

Sven u got any of the new 3mm 1 pc seals ready?

JT

 

After major dramas in every imaginable way the 2mm springs are finally done.

 

Congrats to good numbers Jan-Tore! At which rpm did you have 497 rwhp? 512 Nm was it at 7650 rpm? My friend Gus did 499 rwhp@7400 rpm and 540 Nm @6xxx something, this on a big streetport and 1,25 bar with V-Power. This was done on a RotoTest. Seems that you running to rich from 7000 rpm and up i think you lose some hp there. We will see what Gus FD3S can do with E-85 on Sunday. Btw if you plan on dragrace your car, then you're welcome to Strangnas and Bilsport " En dag pa strippen" event in June 14/6. There will be some turbo rotaries there.

/Lasse

 

Before

 

And After

 

that's a big *** nail

 

Pretty sure thats a chisel. And if you were joking then I fell for it.

 

Thanks to JR (Judge Ito) from Advanced Rotary Performance we have some initial results of performance on the 2mm hard faced springs as well as Nitrous use on NRS 2mm 1pc.

JR reports that after installing NRS 2mm 1pc Scorpions that he immediately had to add 3% more fuel compared to the same set-up using aftermarket 2mm 2pc steel seals. These results are right out of the box with very little seat-in time. This gives us some indication that the modified springs are providing good pressure and we know that the Stinger hard facing will ensure that we hold that pressure for a long time to come.

We don't have compression figures yet but they will come soon. With regular compression test intervals to follow so we can log the sealing ability over time and # of passes.

JR also reported that the engine made more power on a 225 shot than on a 300 shot using aftermarket 2pc 2mm steel seals.

On the first outing at the track they ran their best 60' with a 1.19, previously the average 60' was around 1.24-1.26 so we are very happy about that.

With the coming chassis tweak JR has planned the RX3 should run like an arrow and with the new found power........who knows

Stay tuned, JR said he would come on here and make his own reports and give details as they come.

 

Thats some great results...

Any word on the 3mm seals?

 

Some of my experiences with the NRS seals. The very first thing I notice was a reduction in friction. Almost like the rotors are swimming in a lake of butter. Once I felt that I knew I was in a good place. Second thing I notice was the amount of sealing compression. A huge difference in comparison to metal seals. Once I fired the engine up my Air fuel ratios were off. A little on the lean side. I had to add 3% more fuel to my idle map and over all map.

I took the Rx3 to test and tune, I made a nitrous reduction of horse power jetting. to start off. I had a 300hp jetting prior to the NRS seals, I decided to go down to 225hp since the NRS were creating better vacuum. My car will not run straight in the two runs that I tried the car. But I could say the The car went from a 1.24 60 FT.(with the previous metal seals) to a 1.21 and 1.19 60ft mark. (with the NRS ceramics) I don't have more information since the car will not run straight, but so far I'm making more power with less nitrous, using the NRS seals. The Rx3 is currently being worked on, and Ill be testing the NRS seals very soon. Over all experience is Xtremely satisfied..

to be continue..

 

Some of my experiences with the NRS seals. The very first thing I notice was a reduction in friction. Almost like the rotors are swimming in a lake of butter. Once I felt that I knew I was in a good place. Second thing I notice was the amount of sealing compression. A huge difference in comparison to metal seals. Once I fired the engine up my Air fuel ratios were off. A little on the lean side. I had to add 3% more fuel to my idle map and over all map.

I took the Rx3 to test and tune, I made a nitrous reduction of horse power jetting. to start off. I had a 300hp jetting prior to the NRS seals, I decided to go down to 225hp since the NRS were creating better vacuum. My car will not run straight in the two runs that I tried the car. But I could say the The car went from a 1.24 60 FT.(with the previous metal seals) to a 1.21 and 1.19 60ft mark. (with the NRS ceramics) I don't have more information since the car will not run straight, but so far I'm making more power with less nitrous, using the NRS seals. The Rx3 is currently being worked on, and Ill be re- testing the NRS seals very soon. Over all experience is Xtremely satisfying..

to be continue..

 

NRS has agreed to supply free of charge 2 full sets of 3mm ceramic corner seals to crispeed for the 4 rotor RX8 build for the purposes of testing. Firstly the engine will be built and a baseline established on 3mm 1pc seals. Then the ceramic corner seals will be installed to properly assess any gains or performance changes.

With the combination of ceramic apex seals and ceramic corner seals the 4 rotor rotating assembly will see a weight savings of approx 5.72 ounces at the extremities of the rotor.

 

a

 

Are you supplying hard faced corner seal springs as well?

I have seen even stock corner seal springs wear to a sharp edge against stock corner seals.

 

Yea they will definitely need them. I've pretty much got the fixture designed and now just need to cad it up and have it made.

 

any 2mm solid corner seals avaliable?

 

Just got my car last night. Not tuned yet. I want to put a few miles on it before tuning. I'll have dyno results in two weeks. I have the one piece 3mm new material. Starts with one crank! Can't wait to see how it does with the boost to it! Thanks for all the help Sven.

 

Not just yet but there will be some soon

 

That's good news Ernie, make sure to let us know how you go.

 

So i finaly did a compression check Sven. The setup is 13b Bridge Port with 3mm 1 piece seals.

The car has been working fine, and after some tuning of the startup map, both cold and warm it starts like a charm now. This is on E85

So back to the compression check. I don't have a mazda compression checker so i used the old fashion one, with the one way valve in it that i took out. On the front rotor it looks like it jumps up to between 75-85 psi and on the rear it's def above 80psi on all faces.

Now i don't know what the compression should be in a large BP engine. But this seams a tad low i think. But it does not have any starting problem at all.

It fires straight up and even idles by it self when warming up. It also starts instant when warm. And the vacume at idle is about 280mm/hg or -8 psi on my boost gauge in vacum. This is after what i have been told quite high for a BP engine. The rpm is about 1700 when pulling this kind of vacume at itdle.

And the engine runs fine under boost, except for a heat soak problem i have had. Wich i now think i have found.

If anyone could give me a comparison to other Bridge Port engines it would be great.

JT

 

^^

Would like to see the compression figures taken on a factory tester.
Then again after the housings have seasoned some.