I think it you had to do minor modification to the oiling jets and maybe different bearings/gears. But not sure its nothing too drastic. I will call one of the pros on monday and double check.

Again run what you think works best for you. Some of the things i say do run alot more money so it really isnt done on here. But i truly believe IF you want that much power with a solid platform is to do a 13brew swap. and just do minor add-ons to the block and you can see upwards of 400hp reliably. but again that is my way of doing things. but i also like to go over the top.

If you need any more help with anything else just lmk

 

Oh yeah start thinking on a transmission cause 450 will destroy stock.

 

at one time i considered doing a rew swap. I looked into it for the longest time just could not pull the trigger. Thats when i went turbo. I would still kinda like to keep the engine renesis (well atleast for the most part) However i do really like the idea of the T2 rotors. I have done a little searching on the net and found somone who used the RX8 rotors in a T2. So you would think it would work the other way around also. But yes, if you do ask a few questions and make sure this works i could definitely be up for it. I would jsut need to make sure i have all the little things figured out and lined up. I could sell the Esmeril seals and pretty much buy a set of used S5 T2 rotors so it would not be to expensive in that aspect. Plus i am planning on a full rebuild either way i go so buying new/different seals and bearings are still no big deal. Balancing - well it will be at the shop anyway getting work done so balancing can be done also.

Also, the S5 was 9.1 compression andthe S4 was 8.5.1 compression. Would 8.5 be to low of compression for what i am shooting for. I believe 9.1 is the way to go but didnt know if the 8.5 would be a little better for my application or if it would be total overkill and be to low of compression.

Trans, i have already thought about, kinda just plannin on using the stocker untill it goes out then just goin with an fd trans. They are cheap enough and cheap to replace instead of buildign a T-56 or something of the sorts to fit our cars.

Engine management, dont a some of hte 7 guys run a microtech anyway? Thats what the Int-x is so i am still thinkin i should be ok, if i want to get to crazy in the future i can work something out on switching it.

 

Ill figure it out soon. I remember someone doing it and it wasnt too big of a deal but not fully sure. I would use the 9.0s they series 5 so they are good.

Yeah go T2 too, 5spd and shorter gears but strong as ****. T56 is overkill.

Yeah they use microtech but a standalone is totally different than a piggy back. use the int x till it take a crap on you. Its already set up for the renesis so dont spend more money.

 

I have a friend who has build andrebuild a few rotaries... i told him the idea of installin s4/s5 rotors and got his thoughts on it. He was suggesting using hte s4 rotors instead due to the lower compression ration. It would give a little more breathign room for tuning and the amount of boost that i wanted to run. Whats your reasoning for the 9.1 rotors over the 8.5.1 rotors? not saying one is better then the other just looking at pros and cons of each.

 

http://www.rx7club.com/showpost.php?...5&postcount=12

Weight for one.
Its a personal choice here. 8.5s are heavier so thus you need to change a few things. but here
http://www.rx7club.com/showthread.ph...ors+vs.+rotors

do take a lot of the post of the rx8 owners on there is BS. just pay attention on them talking about the rotors.

 

In that thread they were talking about a cut off seal between the side seal and oil seal. Would i have to have this cut into the s4/5 rotors in order for them to work also.

It was also mentioned that they were having the stock 8 rotors cut to fit aftermarket seals for the 7.... this could be a possibility also.

Its startign to look like some machiene work on the s5 rotors to get them to fit. modifying the oil jets and cuttings in parts for the seals... then balancing. Just want to make sure i figure all this out before i commit one way or another. But all look to be good options. still very interested in doin this.

 

Yeah that is another thing you have to look into. I believe if you do that cut and then you use the rx8 seal you should be alright. The place that will do your work should be able to take care of this.

Yes i mentioned before that, that was one of your alternatives. But you had already bought your Esmeril seals. Cutting rx8 rotors to fit standard seals runs about 500.

yes there is machining involved like i mentioned. but its nothing too drastic. It may make the overall price more but might make engine more reliable.

 

i still think its sort of a toss up with using the s4 or s5 rotors. I will need to look into what it would cost me to have the place for the seal machiened into the rotor along with the price of balancing. If its nothing to crazy then i think it would be a really good option. If you could still look into all the other things needed like bearings and what not i would appreciate it.

 

Yeah ill make some calls next week.

Anyone interested in LSX swap?

 

lol not really... thats ALOT of cutting and changeing and hacking and labor that i can not afford...

 

im gonna drop an Ls1 with custom subframe this spring. IF i dont sell the car. 20b will be on hold for a while.

 

So your were/are goin The LS1 route huh. Why did you settle on that?

 

I have changed my plans from 20b turbo to LS1.
Few reasons
Cheaper, more power, more reliable, better mpg, cool?

I will still build a 20b turbo but just not for the Rx8, i rather spend 4k on a LS1 swap than 15k on 20b build and then still owe the car. I will work on 20b as another project for another car.

 

So hows everyone doing?? still loving your rx8?

 

Heck yes I am... not loving Iowa weather though.

 

Drove mine for the first time in months today. Felt real good. Picking up some new rims and tires this weekend. Stay tuned.

 

lol I havent even started mine in over a month. Gonna let it sit till spring.

what you get jonathan?

 

 

enkei?? look good

 

Enkei nt03 +m
18x9.5 +27mm offset
19.9 lbs.

 

Nice!! +27, tight fit... Hellaflush, lol. Those are going to look fantastic!

 

Yeah I'm going to have to roll the fenders. Gotta find my baseball bat.

 

I always thought they were ugly, but that color gives them a different look. why did you go with 27mm offset? was it a deal?

 

I agree. The color sets them off. They're limited edition too which is pretty cool. I got the 27 offset because it was a deal too good to pass up. Should be easy to fit. Running 255/35 nitto 555s. My 2" drop in the rear is the only reason I will need a roll.