Hey guys I was wondering if there would be any sense in doing an agressive port on an na 2-rotor, built mostly for drifting? I know most guys go with a v8 or a turbo, but I was wondering why people don't go with a heavily ported na? Is it the power? The car would be just for fun, not any kind of major competition... yet Hahaha.

My cars internals are pretty much stock and the motors is still going strong (65k original miles), and I've been looking at what the next step should be. Once I get the the money I would like to put my fc aside and have a different daily. So either a t-ii swap, na-t or a port were the options I had in mind. Kind of always like na since not many people do it.

 

It's just a lot of people find N/A too underpowered to drift. Then again, you don't really need a whole lot of power to have fun, but it's just harder to sustain a drift with under 200 rwhp. You can do small technical tracks in second and maybe some third (not really sure, have never driven an N/A).

If you got a good enough port and did other things to milk out the power it can be done. I think if you lightened it a bit and did a big street (maybe even brdge/PP?) along with all the other stuff you could have a nice fun car on your hands.

If you want to stick with N/A and have something unique, a PP might be a good idea (mind you it's not cheap and it's not a "bolt on" mod, requires fab work). People make ~ 280-350 rwhp on PP's from what I've seen so far and that would be more than enough to be a great drifter/fun car.

 

There are a few poeple out there with N/A 20Bs but different kettle of fish,

The N/A Corolla's they use in D1GP in Japan are only around 220hp they don't seem to struggle too much.... As Jimmy2222 said put the car on a diet run fuel injected set up and i don't see why not.

Could be worth picking up a 4 port block and doing a big bridge.

 

Yeah my thought would be go pretty much ***** out with the porting. PPort with ITBs or something. I'd like to keep the interior and stuff pretty much intack so I could drive on the street just for fun.

Small side note. If you did a bridge, could you go to a Peripheral down the road?

 

Yes as the side ports have to be filled (unless going semi PP, but that's just a load of headaches IMO) regardless.

You wouldn't have to do a whole lot of weight reduction if you did go PP to have a fun ride, but I still think the car is too heavy stock (depending on what kind of power you end up making and what kind of ports you have). Also, I'm not sure if the NA tranny can handle that much power, but I think there's people running T2 kegs without problems (so far, lol).

 

Ok thanks.

What about the n/a diff? Also what's the power band like I know the top end is where it's at but will my low end be shot?

 

If you go with high compression rotors, I can't see low end being a HUGE problem, just from what I've been reading you'll be idling at like 1.4k (?) and power will be like 2500-4000 will be KIND of slow but after that it picks up quick. Same as a turbo but you won't feel as laggy (but there will be a bit of lag, just not like turbo lag).

If you have some extra money you're willing to shell out, I'd look into billet rotors from mazdatrix as it could be a worthy investment. That's if they're not ridiculously priced.

 

Right on, I'll keep that in mind. Thanks for all the info.

Also Rx8 e-shaft, would it need any modding or would it drop right in? I figure use my stock rotors, the cars an 88 GTU originally. Also any engine management you'd suggest?

 

I would say that if you go extensive with the porting, ie pp then your bottom end is shot. Driving it around town will not be very fun, but everyone has their own level of comfort. Mine isn't very high, but everyday it would get annoying I think.
Scott Howard just won the time trial S NASA national championships with a 13b 4 port small bridge making 243whp and around 158ft/lbs torque. Here's the link. It has alot of great information in it.
https://www.rx7club.com/1st-generation-specific-1979-1985-18/2010-time-trial-s-nasa-national-champion-923396/
Granted this was in a full race trim FB weighing in at around 2200 lbs I think.
I have a 12a with an very large street port in it and the low end is just not there, granted we are talking about two different engines but I think the concept stands. Power starts around 3500, and around town driving the thing bucks, it up top its fun as hell!

With Pport, supporting mods are highly recommended, like oil pressure mods and balancing. Don't want to blow your brand new motor due to oil starvation

As far as the RX8 shaft, I think it drops right in, but I'm not sure, so don't take my word on it, just research a little. This forum is full of stuff if you look.

With the n/a diff, I would certainly get something when the money comes, Yours is the stock lsd right? or is it open? Whew, that all turned out longer than I thought!

Good luck with it! Hope you keep it n/a.

Also ,what is your budget?

 

No real budget yet, just ideas I'm kicking around in my head wondering which way to go with my car. Thanks for the link I'll definitely look into it.

 

Yeah I know that feeling.... I've always wanted a built n/a bridge or pport with itb's run by a megasquirt or haltec.Then put a side-mount alternator maybe even a gilmer drive setup and strip the engine bay. That would look super clean!

 

I drift no problem and I'm NA when I am on snow covered tarmac or or when its heavily raining or snow covered gravel or gravel or snow covered frozen lake....


lol

 

i drift mine too. n/a loves the redzone LOL

 

Agreed. It looks awesome. And peoples faces when they see how small the rotary is and all that it can do.

 

ever thought of a semi-p port? in that equation

 

Pros, and cons??

 

i had a friend who went the NA drift route. the stock s5 does "ok" you have to know how to drive, and use a lot of momentum. he sorta figured 200hp was a good number, and built a street port engine based on a t2 block with 9.7 rotors and a RB holley intake. he dropped a bolt down the intake though, so we didn't get to see if it worked.

on the other front, PP is very simple, only real fab is making the housings and intake if you don't buy them. idle speed on a PP if you bother to tune it, could be the same as stock. low rpm power is better than stock too.

the bridge needs a little higher idle speed, and it doesn't drive quite as well as the P port.

the hard part is really the exhaust, it needs to be very free flowing, so noise is a problem

 

I know the restriction will hurt power, but will it hurt the motor?

 

maybe if it was really really bad? seems like you just loose power.

getting it quiet enough to go racing isn't too bad actually, but quiet enough to street is a problem

 

I have an N/A and thinking about setting up my N/A for some drifting but I don't think that it wouldn't have any problems drifting. I mean I used to own an 4ac AE86 hatch and it was well under the 4ag and well under the under power mark but I could slide that thing like no ones business with just the right set up (that and a welded diff lol) But like most of the people said it is no problem.

 

FC suspension is a bit different, but very do able.

 

My injected bridge idles all day at 1000 rpm without a problem. And now that the engine has finished breaking in and the compression has come up on the carbons shes really pretty tame. As long as its not a daily driver then people shouldn't be so scared to tackle a bridge or P-Port project, they really are awesome fun .

As for the exhaust why not get one of those electronic bypass systems where you can go from a quiet setup to your power setup with the flick of a switch. My car uses a 3" setup with a 3" straight through pre-silencer and 3" straight through muffler and it is crazy loud. Not much of a problem here you can usually get away with a loud exhaust in South Africa thankfully but you may have to find a way around it if you want the full potential from your motor.

 

I have an ECV that I'm selling, maybe I'll keep it...

 

I'm drifting N/A streetported.

 

So I'm curious if going the NA route would be more reliable then just a TII swap. Also cost between the two.