forgot my head, perhaps due to age, but GtoRx7 has a semi as well.

 

I like to read as much as I can too. I think the rotary engine is a great design if only it had the amount of developmental time the piston engine has had it think it would be even better. I've been reading a lot of threads on here and on nopistons on p-ports and building engines for the past six months and figured it was time to get up and actually build one! That being said this is my first real engine build. My main reason for this thread is to hopefullly get some good feedback from you guys so that the engine will turn out ok and I appreciate it. Thanks, for the criticisim on the oil passages. I thought they were kind of rough too, but it's such a small spot I don't know what to use to get in there; good ole sandpaper? I've got the rear oil pressure regulator end smashed and I have shimmed the front regulator (which from the FSM it says that it already regulates at 156?). I'm wanting to bypass the front cover by drilling and tapping the front iron, but should I block the oil from flowing to the front cover or let it flow to the regulator and block it at the old exit? As for the throttlebodies, they are from a GSX R 750 motorcycle and they are 40mm. I buit an intake manifold and had them on my old car but decided they would have better use on this engine. The way they are build makes it hard to seperately control the oustide throttles from the inside throttles. Maybe I can rig a way up for some staged throttles though.

 

I don't know others results, but I shimmed my front and smashed my rear regulator on my old t2 engine and only saw a 5psi increase.

 

well, i would never say my way is the best, but what i use for my oil passages is my trusty Dremel. i use one of those round carbide (? - not sure) cutting *****, then i go at it with sanding drums 80, 120 and 220. if i could find something finer, i'd go even finer than 220. so far it gives me results that are acceptable to me. if you want, you can try that.

there is a thread by 13B-RX3 about his oil mods, it's one of my favorites. he used the front loop line and he's also running a semi - albeit, turbocharged - give it a once over. he's also a very cool dude (funny as hell, too) so i don't see him not giving advice and it would carry a lot more weight that mine because he's built quite a successful semi-pp setup. i love it.

hope that helps.

 

i had some time before i left for work, so here you go: 13B-RX3 oil mod thread

 

Haha, thats thread I've been reading to get all my information for the oil mods I've been attempting. Thanks for the link though. I'll try sending him a PM, thanks again.

 

you know, for a somewhat intelligent being, i can be really retarded sometimes. though i'm about a thousand miles from most of my engine, i somehow forgot that i brought my rotor housings with me, so i can take pics of them now rather than wait until i get back to my computer at home for the ones already taken. in my own defense, it's probably because they're kept a few miles from me right now, too.

anyway, here's a shot of the exhausts. i'll work on getting more to you if you'd like.

my exhausts

if i can get my hands on some T2 or REW diffusers between now and assembly-time, then i'll install them, otherwise i think i'm going to leave them as is.

 

MMMM purdy exhaust ports you got there!

 

so how's your oiling system coming along? did you get any help/ideas from any of those guys?

 

wow! didn't expect a view that soon ...

well, sarcasm or not, i take that as a high compliment coming from you.

 

No sarcasm at all, they look good. I would personally run sleeves at any expense.

 

well, like i said ... i'm touched with a compliment from you and to know it's not even sarcastic is gravy. sometimes it's hard to tell when you're being serious or poking fun at someone, Mr. 6-port.

anyway, i'd prefer to run sleeves, i just don't want to use the stock N/A sleeves - i'd much prefer one of the turbocharged model sleeves. so, i'll be honest if it comes down to being a holdup for assembly, i'm going to put it together without them. i just want to get this thing together. i'm fairly sure it will come apart again within 5000 miles - only question is will it be voluntarily or not?

 

Contact Japan2la, he has the sleeves for sale.

 

Well, I got some updates. Some good, some bad. Good updates are I got the exhaust ported and sleeves made. I made the sleeves come flush with the port opening as much as I could and kept the port shape throught out the sleeve as much as I could and yes I know my welds are shitty so you don't have to tell me.Bad updates are I found a piece of the chrome flaking on the edge of the housing by the exhaust port (I think you can see it in one of my pics). I'm not sure when it happened, but i don't remember seeing it when I disassembled the engine. I think the housings look like there in pretty good condition other than that, so i'm not sure if I want to save my money to get them cemet coated or not. Honestly, if this engine lasts me more than 40,000 miles I would be more than happy. Next bad update is while trying to drill out my oil pump galley I made and extra hole that shouldn't be there! So, I decided to get some japan engine Turbo 2 irons to replace them. I was using a 1/2" drill bit to try and drill it out and I guess that wasnt the way to correctly do it. I figured since there's already about a 3/8" inch hole it would help to keep it straight, but the drill bit kept kickng and I guess that got it off. I got a 1/2 die grinding type of bit (made for harder metals) that I I'm going to try or i might get a 1/2 reamer since that is what 13b rx3 used I think. I don't know which yet I just don't want to screw up another iron! BTW you exhuast ports look good, you got any pics from the inside of the housing?

 

Where did you drill? Any pictures?

 

i would probably put much more weight on your oil passage setback than the flaking on the housing though. my rotor housings are not perfect either. i thought about using the Cermet as well - and i'm sure i eventually will, but i want to get it running and work out the tuning kinks before doing so (which is one of the reasons i'll probably disassemble it before 5000 miles).

it sucks about the setback on the front housing though. hang in there and thanks for the kind words on mine. i'll take some pics whenever i go back up to where my housings are currently kept. here' are two other vantange points until then.

my exhausts 2

my exhausts 3

 

I think the oil passage that crosses the oil path that I was drilling is what the drill kept kicking on and I guess that is what made the drill go side ways. I honestly don't know why it did that. Here's some pics. Those exhaust ports look like they will flow quite a bit!

 

I see now. Yeah, you have to make sure it's absolutely straight!

 

Haha, yeah! Lesson learned! bought this 1/2" grinding bit made for harder metals like cast iron. Do you think a 1/2" reamer would work better? I was thinking I would give this bit a try and if it's not working out I'd switch over to the reamer.

 

Actually a drill bit would be the safest because to a degree it will self center. A piloted reamer would be perfect but they are not cheap.

 

I got it drilled! I just used that grinding bit and it really wasn't that bad! I took my time and just kept making sure that I was drilling straight. That bit that I used that first time was just a piece of crap I guess. Anyways, I got it drilled, tapped for the fitting, and oil pum ported out. Thanks for all the help.

 

any updates? how far along are you?

i got my aluminum epoxy finally and when i get back home i'll use it. i also got my front housing and i did the rough cuts on it. just need to smooth out the ports and oil passages, then it will be ready whenever i'm able to get my apex seals and rotating assembly balanced. i can't wait.

 

Sorry, I haven't replied in awhile. I just got the motor assembled today! I have been waiting on trying to get some exhaust inserts made (cause mine were shitty and probably weren't going to work), and I can't seem to find any templates or dimensions to go off of so I said screw it and went ahead and put it togther. I made some templates of my exhaust port and I have an extra housing I can use to match the insert to my port before I put it in the engine. I still have to measure and set the end play then I can assemble the rest of the motor and put it in the car. I'm nervous and excited all in one! Sounds like your getting pretty close on yours too! Here's some pics!

 

I put kind of a mild streetport on the Turbo2 irons, my theory is that the fast moving air from the side port will blow across the p-port and help pull some of the air out. That was a pretty hillbilly sounding explaination, but I think it will act like the stock primary and secondary ports. I would have the engine assembled, but I was trying to set the endplay using a feeler gauge and couldn't get a very good measurement so that held me up. I hope to get it broke in and halfway running by June 6-7, so I can take it up to the tuning session they're having in St. Louis. It puts some pretty good puffs out of the spark plug holes, so hopefully it will have some good compression numbers. More pics!

 

More pics!