I'm running a 93 FD with a mild streetport. Right now its running stock twins.

I will be dropping a GT35R with a Tad bit larger hotside.

My goal is around 400hp at the wheels when im done.

My concerns are that i have never boosted above stock on any of my rx7's so i don't know what a rotary can handle. The car will be driven every few days or so, as i have nice Arizona weather so we rarely ever see rain or bad weather.

I was thinking of limiting my boost around 16-17 pounds with a Tial 44mm and a 1.1bar spring... someone correct me if im going in the wrong direction here.

As for injector sizes... i have no clue what do run on this car.. all my previous cars were one size for all... such as a tuned sr20 you could run 740's and with the supporting mods such as turbo and internals and make good HP. But the rx7's are different for me seeing as ive never actually done anything to my rx7s besides driven them and some suspension work. How do i figure out the size injectors to run for primary and secondary. I seen some real Nice set ups running 740 primary and 1300 secondary and they just romped all over the roads. Please help me out in this section.

My engine management will be the infamous Power FC which brings me back to fuel... Should i worry about what to set the duty cycle at or should i have this tuned by a pro shop.

im going with Rotary performance's Fuel pump that handles 500hp easily

And thats about all ive got on my list so far.. except for the obvious manifold downpipe and such.

Any suggestions or inputs please let me know... First time going single turbo. i think its about time.

 

You are definetly going the right direction. To use those injectors you will need to have a primary rail altered to fit the 740cc injectors and the secondary rail will have to be replaced with a top-feed style rail. Also a 2nd gen leading coil would help out with the ignition. As far as tuning goes, have a pro do it since you are new to rotaries, and they are very easy to pop if you don't know what you are doing.

 

how would that be a street terror though?:P a gt35r is relatively small.

as for ignition go for twin power

 

Yea when I read the thread title I figured your goal was 700+ haha. Thats how desensitized us RX7 owners are. We are so used to seeing 400whp. Good luck with your project, you're heading in the right direction.

 

500r, T35/40, T04z...

 

haha yea, around here, thats a street terror, not many cars around here can even touch the FD i have now. 400hp FD is good enough for me, i rode in one that had just over 400hp at the wheels... it was ridiculous. And i was looking at the HKS twin power ignition, ive heard good things from my customers at my store, ive never had any returns on those or bad reviews. And the set up i came up with was pretty much a conclusion i came to from what customers have bought from me.

There is a shop out here that makes a good fuel rail for the FD and he can customize it to however i need, maybe you have heard of then turblown.net

any more suggestions please feel free... im just another 240 guy turned rotary. Dont get me wrong, im not some newbie asking random questions. Ive been working on cars for my entire life... Just not any rotaries. Unlike the 240 i actually have to do extensive research.

 

****, a well running stock FD is a street terror... But yeah, sounds like a good plan so far!

 

A very smart addition would be a water/meth kit, especially on a street car. Your engine will last a lot longer with the intake charge temps. cooler.

 

Totaly agree with this. I have a PINZ WI system. Lowest intake temps on the track so far is 22c (71F). ON the street its been as low as 13c (55F). Very good investment. That temp is measured in the plenum.

I see you want to use a 44mm WG. I use a 50mm waste gate. Its good. Think about it.

I run a GT3582R turbo on the street an track. Its a great turbo. I keep up with 700hp GTR's on the local track.

 

^^
A Tial 44mm wastegate is all you need. It outflows most 60mm wastegates on the market. Its the same one I use. If you want to run very low boost, run two wastegates.

 

in my business there is quite a few people that purchase the 44mm from me and then we have a bunch of people buying the 50mm, ive followed up with customers after a while and asked them how the products are doing and such, and honestly. i think ill go for the 44mm, nothing bad about a 50mm but i just dont really think i need it, but it never hurts to try we have a few different parts laying around i can try out.

as for the water injection i dont know what kit to get honestly, i guess im a little old school when it comes to that kind of stuff, we offer the kit from my store, but i know nothing about it and its addition to my car.

i would show you a link to my site with the kits, but with a small dispute i had with a moderator i am not allowed to publicly advertise my site, and i guess showing a link with the kits we offer would be advertising (note to moderators: i am not complaining about the situation, i am just simply trying to follow the rules)

anyone with knowledge on the injection systems please speak up and i will send you a link that shows the kits i could use, and maybe you could tell me what kit would be best for this application.

 

pm howard coleman on here, he's our resident AI guru from what i've gathered. I'm sure a few others could help out as well. pm me the link as well, if you don't mind. i'd like to see what your shop has.

 

my father back from michigan called me today and told me we are building a drag FD (american guy turned rotor head, after i bought my First FD) but he called to tell me my uncle just built a mid 9's corvette. He wants to smoke it by running a high 8' or low 9's FD. Now i dont know what these internals can handle, what kinda boost would he have to push, turbo size and such.... well i guess this is the Street terror the topic title is talking about... my car is just going to be the little sister i guess. any suggestions would be great... i was thinking of starting the build off with a T51... inputs?

 

Are you talking about your Dad's FD? If so the T51 won't get you to a low 9, high 8. You'll need a large frame turbo like a GT45R. Or the bottle.

 

don't forget traction. you're gonna need LOTS of it.

 

i didnt even think of a gt45 good looking out
and for traction... well he is already tubbing it

 

tubing only does not give you traction..

 

Thats my next turbo....within the next couple months

 

well tubbing alone doesn't give you traction... you gotta have wheels and tires to match and the supporting suspension mods etc, i was just saying... hes got that much under control, he just doesn't know his way around an import's engine bay whatsoever

 

shouldn't you run a 5-8 pound spring and use a boost controller to boost higher than that? or am I the one that has got it all f'd up.

 

Mike,

Is the car still here in Arizona? Why don't you stop by again sometime. There is a big drive going on to globe that you might be interested in going to also..

 

Your all f'd up, lol. No, you can't get a spring that low and if you did the wastegate would open almost instantly and the car wouldn't make any power. Even a 10lb spring is to little of pressure.

 

yea the car is still in Arizona... im just trying to get some ideas right now, im not even sure im going to be able to have you do the work for me, it might be when i get back to michigan that i build it. and oh by the way i have your starter sitting here, i just have been too busy to get back up that way... are you in a hurry for it? because i might be able to get it out to you next week.