Maybe it is a stupid idea, but you have a great fabricator, and you are into BMX. Why not combine these two and release a set of custom frames with your own angles? Paint can be also referring to iconic cars from your collection. Just an idea.
There's actually modeling and engineering that go into those frames. I'm sure yohan could build frames with pieces and plans, but fr scratch isna huge liability
@@tturi2 you have no clue what you are talking about. Don’t buy it. But when you do every time you turn it on and play it with a smile on your face. remember me boy. Remember you said it was going to be a let down. You have not a single clue on the giant you are talking about.
It has a muffler which is a liability on p-port car. Check for collapsed muffler tube. Any misalignment, lip or purposeful stinger that reflects exhaust sonic pulse back toward engine will wreck power. Mazda Factory Race muffler is ~90Lbs of pummice stones with 12 gauge SS perforated tube passing through
Would that affect it from so far back in the exhaust system? Any reflected pulses should get attenuated by the time they made it all the way back up the exhaust, split through the collector, then up the manifold pipes. If they did get all the way back up you'd think it would only be a problem in narrow bands of harmonic frequencies, it wouldn't show as wild variations between pulls through the whole powerband. Collapsed muffler internals intermittently blocking flow could totally make these symptoms though, my RX8 did a similar thing while my catalytic converter was dying. Some pulls were totally fine while there was something clearly wrong with others, made it hard to diag since it didn't really do it in shop testing conditions.
I think you're on the right track, I'm no rotary wizard but I've experimented with 2 stroke pipes back to back that jet and feel like the engine grew 50%
A good heat shield between the exhaust and intake might help the issue. The heat from the exhaust can heat up the intake runners which heats up the air entering the engine making it less dense and leaning out the mixture a little as it gets hot. More of a reverse-flow cylinder head/rotary specific issue due to the proximity of the intake and exhaust.
12:54 Adam just casually quoting captain bomba while calling some one "blunt/stupid dick" is peak content. It just sound so strange to hear it from the foreigner and i love it.
We have same problem with 2 walbro 450 fuel pump. The call vapor up. Fuel heat and down pressure. Need big battery 90amp and fuel correction by pressure
I like how Adam committed to the Peaky Blinders costume a day or even a few days before Halloween so today’s video he’d be in costume! The commitment is glorious!
It's not only the manifold, somethings is of with how it's running, I've heard a fair bit of rotaries and before the rebuild something felt of. and even with a new short-block it's still of somewhere. It's not singing at high rpms and it's making less power that it theoretically should. the inconsistencies in power is one thing, but it's like it doesn't wanna live at higher rpms which is weird. But hey what do I know, I'm just an engine builder.
@@Zesserie looking at the p.p.r.e engines you indeed see loooong runners, but i dont know how they compare to adams manifold. It does seem like something is off
Time to call Logan at defined or the Aussies/Kiwis, cause there's no way the power curve flattens like that in a 10k rpm motor so early. Hot fuel, pump cavitation and/or voltage are definitely something to do with it as like u said the engine sounds perfect. Sucks because that motor should be easily 550+ safely on a mainline at 10k rpm with the setup/fuel you're running. Logans @10k rpm with short runners and huge airbox ran 620 on "rollers" on just pump 93. Maybe it's just a tuning thing as these are a dark art at high rpms but impossible to know that with all the other fuel/heat/voltage issues. But at least u have the people u can call if the fixes don't work. Also, I need to see this with the re-designed 787 style slide intakes to vary the torque and better heat management for the intake/runner situation. They are reproduced by a few kiwis and work as far as I know, and u would be the king of 4 rotors on youtube if u did this lol.
@@JDMzthought they had pretty great internet by now. Shit they do 2 gigabit over coax nowadays, the same rg11 cabling they should already have ran there.
I feel like you likely checked this but are you monitoring IATs? The header is awful close to the intake manifold runners and like you said it related to heat soak in some way.
Hey if she’s not right/running top notch there’s no point in chancing damaging something inside the motor!!! You guys will figure out what the issue is and she’ll be fixed and running better than before!!! Definitely one of my absolute favorite (builds you guys did) cars that you and your team/crew/brothers have built, it’s for sure one of a kind and it stands apart from all the other 4-3 rotor builds on RU-vid!!!! Shit she looks absolutely badass/mean and sounds incredible and looked to perform extremely well when you had it out on the tracks!!!!! Amazing piece of art work that came out of the LZ COMPOUND all you guys should be very proud of that master piece of a car build that came outta your shop‼️‼️‼️💯💯💪🙌👏👍👌👌
Adam, dude! Please start building bike parts! We need another bike company that builds in the USA! Your input and designs, along with your whole team of friends with tubing skills would be great. I know you’re too busy for another business, but I can dream.
Got a heat problem on my pp too , I think the exhaust heat coming off the stainless and the recirculating of gas over the top is vapouring the fuel in the line…… Can’t go slow as fuel pressure drops , and comes back once on the road / cooling down. Heat shield between the gas tank and exhaust , and maybe a bigger surge pump to knock the heat out
You have to run a staged set up. We had the exact same issue when i went twin turbo on my drift car. The fuel ended up boiling at the track. The fuel was getting to 250 degrees at idle! (I have fuel temp) Once i set it up so 1 pump ran at idle and the other 2 would only kick on when we saw boost all my fuel issues went away. For you i would run a aux out to you second pumps and make a 3d table to have other pumps only go on above a certain rpm and above a certain tps. (You only need 1 pump while cruising.
To add to this, when fuel would boil my fuel pressure would rapidly be changing back and forth. And when i stepped on it the pressure would drop to 30 psi.
The way it sounded under load, was a "drop" in 1/4th of the notes from it. Almost like a single rotor is way warmer than the others, possibly cooking off and heating up the fuel rail at some point. Personally I would have pulled the plugs and injectors to look at them. If the corresponding injectors to plugs are noticeably heat-marked, you find your culprit.. but not the cause. But that's when checking cycles would be the next step (because maybe that rotor is running leaner and thus running hotter and heating up the fuel and worsening the problem over time). Kinda like 4G63 cylinder 4-heat cooking the exhaust sensor at times etc.
Had DW fuel pumps cavitate in my Evo when fuel temps got hot. At least that’s still my belief after going through 2 DW fuel pumps and noticing the cars AFR/fuel pressure would be stable on WOT pulls during cold mornings and right after refueling. (I live in Florida) Switched to an AEM pump never had the problem again. Will not by DW again…
Lol I've just drove my 787B motor swapped FC round the Ring on GT7... such a lush sound echoing round that track... it would be insane to hear it for real 😅
Mazda dominated the 12 hours of sydney race in the 1990s. Porsche found out the privateers down there were losing. They sent two factory cars. Mazda cooked up an answer, but it just wouldn't cut it. The Mazda racing team ordered two liquid nitrogen trucks. They super cooled every drop of fuel that went into those FD3S's. Finished 1 2.
Maybe in the future when drift cars become so fast it makes no sense id like to see the sport revert back to its roots with less power/ tighter technical tracks and just skill being the winning factor.
I saw a possible solution about exhaust issues that I think explains your problems here, and it was posted by a guy called RotaryMotoring so that checks out too lol. Not sure if it's correct but I always thought of rotary engines like 2 strokes where two different pipes feel like two entirely different engines
Holy crap!!! He shaved the porn stache! Bro.. this is without a doubt my favorite car you’ve ever built. This thing is absolutely wild and the A90 with an NA billet 4 rotor is an insane sentence! How crazy would it be to see you run this car with a turbo and nitrous in FD next year? Even if just for a single round, I think it would be nuts. Really hope we get to see this car do more events. I’ve been dying to see you build a true motorsports spec’d out time attack car to compete in at GridLife. Or build an insane car for Pike’s Peak and World Time Attack. PLEASSSSEEEE! You’re doing rally, it’s the obvious next chapter in your professional race car driving career. Beautiful build though man, you guys should be proud of this one a lot.
Sounds like a voltage drop/heat soak issue. Add a fuel cooler to the return to cool down the fuel. The sump tank looks a bit small. Is it possible with a in tank sump like radium? Check voltage going in to the pumps while doing a run. It could be dropping in to each pump or just one. Id also check plugs and coils to make sure they are ok. What plugs are you running? NGK R7420-11? For my 4 rotor i always warm it up on other plugs as the racing plugs are quite sensetive to dying if the engine started cold with them and normal slow driving. They love half to full throttle. But too much fuel will break them hard. I have had that issue a few times both on a 13b-Rew high HP turbo and my NA 4 rotor that i built back in 2009.
heya Adam :) just dropped in to hava listen to ya sic rota and was pleasantly surprised to hear that ya prize giveaway is available in other countries!!! Bout bloody time that one of you creators have done this!!! AWESOME! :) I live in New Zealand I bought a Cleatus $25 us shirt That cost me $80 all up here so is a bit ridic! All these awesome givaways but pointless bein so far out of the common mans reach....so good on ya for changing it up!! :) Imma now go look at ya website and hope that NZ is in ya list!
