All out stock block Renesis.
 

That's what i'm intend to dyno early this spring. I have a stock low mileage 20 000 km Renesis engine and some ideas to extract 300 hp from the engine. Modification and parts list will be as follows:

Microtech LX-10 fuel/ignition system with Bosch coils.
Underdrive pulleys,
Electric water pump.
Nology spark plug cables.
ML Wankeltrim made stainless header.
Feritta race cat w/ single rear silencer.
New aluminium intake manifold w/6 butterflies.
6 full radiused air horns and cold air box.


This is the most of the set up but more is to come on the way.

To tune the engine we have 3 different headers and 3 set of air horns with different length.

The engine shall be dyno'ed on a SuperFlow engine bench that is carefully calibrated by"DR Ernie" turbo guru in Sweden. If we achieve the goal of 300 hp the engine is for sale. I will write occasionally how the project is going.

/Lasse

God, I hope you are joking. My guess is about 250-260 hp. You'll be lucky to get to 210-220 whp.

Very ambitious Lasse . Aim for 300 - but if you hit 260 we will still be happy :)

Love the intake idea - can't wait to see what difference that makes .

I didn't see 'turbocharger' 'intercooler' or 'supercharger' in your parts list, so there's no chance of seeing 300 HP.

While I am curious to see what you can get out of the engine, I'd have to say that 300 hp naturally aspirated is all but unattainable. I just don't see that happening unless you rev it up over 13,000 rpm or more and design everything around that goal.

Dont't forget to intall one of those ebay chips. They'll give you another 25hp

we all talking about rearwheel hp or flywheel hp?

I would guess flywheel which gives you a better chance but still, good luck dude.

i think he said engine hp about 20 times in the first post. whys everyone still confused?

300hp at the crank isnt unbelievable. Good Luck!!

-hS

I think it's extremely unbelievable but I applaud the effort.

Thank's for the inputs guys, i appreciate it! Goal is 300 flywheel hp@10 000 rpm. But it's along way to go...

/Lasse

good luck man, hope you get as close as posible

he might hit it if the Nology sparks don't catch fire and burn the car down first...

If you are serious, it will be quite interesting to see how far you get. You need to add ceramic seals to your list if you are seeking the most up top possible since they can seal better in that range with the right spring pressure beneath them and can allow slightly leaner tune with more ignition advance.

I wish you success.

Paul.

some of you apparently dont know(the ones making comments about ebay chips) about Lasse Wankel. search his posts (starting here https://www.rx8club.com/showthread.p...6&page=4&pp=15 ) Hes been working with rotaries for 20+ years and has built headers and exhaust for the renesis for his 8. as you can see from the link above he even understands the need for proper flow testing. so he's not jsut one of these blowhard kids that come on once in a while with big ideas- he knows what he's doing.

not that that means he knows everything;) for instance he should definetly look into those apex seals MazMart mentioned for better sealing at those higher rpms- it wont be a "stock" block at that point i think- but to get those high NA numbers its necessary.

Lasse how's your turbo coming along?

^^ All the haters just got pwned

I wouldn't say anyone is hating. Just very skeptical about 300hp. That doesn't mean that everyone wouldn't still like to see an all out attempt on what the engine can do. Basically 300 hp at the crank would have to be somewhere around 260-265 rwhp or so.

im curious in your air horn/ ITB set up. Any pics of it?

and i wasnt "owning" just trying to explain for the folks who were being more than skeptical.

rg - the extra rpm needed to reach 300hp would increase the losses a small amount. you would probably be looking at 250-255 whp. its irellevant anyway in the case of his goal since he's just going for BHP on an engine dyno.

300 flywheel all-motor horsepower would be awesome. Be sure to post plenty of pics and a vid!
I too am curious if he can pull it off but we should be encouraging our fellow Wankel tuner, not discouraging him.

If he revs it up high enough with a short intake manifold, he might get up there pretty far. Total airflow through the ports (they are pretty big) as well as rpm limit before self destruction will be the 2 big concerns. People watching this thread need to keep in mind that merely hitting a number for the sake of hitting it and having a wide drivable powerband at that power level are 2 totally different things. I wouldn't ever expect to see it be anywhere near that powerful as an engine that is perfect for a street car.

Well i now it's hard to find 300 hp of a stock block Renesis, but as some of you now when Mazda present the 13B Evolve in was it 1997? it produced 280 hp. But of course dyno numbers can differ from a Stuska to a Superflow dyno and depends who,s calibrate it. I am not doin a turbo kit but a Rotrex compressor kit that is with a Holset compressor wheel that will spin to 100 000 rpm.Next week i shall begin with the installation and i hope to have a prototype kit finished in early April.

Lasse

I now im a bit lousy to post pictures but i will be better this winter posting pictures and some vids for your information.

/Lasse

Pictures coming when we get the intake manifold finished with butterflies and axles along with small air horns.

/Lasse

I bet that sucker will sound mean. Probably not too practical for street use though I would assume. What do you think?
I'm thinking one of the factors might be the lack of air filter(s). If that didn't pose too much of a problem I could see it being practical as long as power in any part of the band didn't decrease from stock. What else am I missing?