maxcooper

My car detonated at ~11-12 psi with Pettit intake, ASP Medium IC, downpipe, GReddy PE cat-back. So, while rynberg is (probably ) right that you won't detonate at 10 psi with the stock ECU, you may very well detonate at just a hair over. And it can be hard to keep the boost in check once you mod.

So, I suggest getting the PowerFC next and run a conservative map until you have all the rest of the parts you plan to get. That will keep you safe as you gather and install all the parts you want. Then go get it tuned by an experienced tuner to make all the rest of your investments pay off (= make power) like they should.

-Max

RX7SIGN

I dont agree I have spoke to Ray many times about this I think rynberg had a point. If you car is running well and you chose mods that were installed and used correctly and are still around 10-11psi you will not detonate. You should have monitered your boost and fixed that problem. If you noticed high psi patterns you should have saved money by just purchasing a safeguard knocksensor unit from any company. This will be like audible alert and cut boost pressure when the knock sensor detects too much detonation. It would be an unsual mod to purchase a FC with only exhuast and dp. Yes, of course fuel and many other things well help it run better and have better power effieciency im not disagreing with that. Dont forget every 13B is slightly different. Some are more stronger than others I have seen and felt this from many experiences with other owners. Some like me have replenished many parts on the car changed hoses and vacuums to new or silicon etc. I have rode in a RX7 with HKS front mount HKS intake exhuast and dp he has a perfect 11psi pattern for over a year now and the car runs well. I rode in a R1 that has minimal mods but wasnt tooken care of and the care is one step away from becoming extinct. I love the power fc or fcon dont get me wrong but not everybody has that money to burn right away especially with the point im trying to make. It isnt NECESSARY to use a aftermarket ecu with just ic, intake, dp exhuast. Also a bad tank of gas lean run or host of other things can spell instant doom for a rotary engine when unchecked. The cars are high maintence but it doesnt mean high money has to be spent to do so until certain point which I dont believe is a standalone when not making that much power. I could be wrong thats just my 5 cents.

littlemilla3

iTrader: (1)

I don't see who you are arguing with. Rynberg already gave you an answer. If you want 350 bhp, then you are going to need to run more than 10 psi of boost. You WILL NEED some sort of aftermarket ECU (PFC); you won't need to upgrade the fuel system.

You can get somewhere around 300 bhp with the stock ECU with all bolt ons at 10 psi and not detonate. I had all bolt ons sans IC and my AFR's were mid-high 10's.

If you don't have the money to burn to buy a PFC, then you can't afford to run more than 10 psi, period.

RX7SIGN

Do you know what i was even speaking about? I wasnt talking about making 350hp lol. He was saying your car will go kaboom with mods and your boost will spike and detonate the motor. Therefore i explained what he could have done to stop that from happening. You decided to make assumption and didnt make too much sense with your reply no offense. I have exhuast and a downpipe right now so "kaboom" or detonation wouldnt even apply to me. The 350hp reliable was the original thread purpose. Any dummy knows what you need to run more PSI or power. And my response to what i can and cant afford....nope, I can afford it. When my Jewelry business opens very soon I will afford my twin HKS gt2835r's too buddy! ; )

seanfd3s

I agree from what batman has told me to run midpipe and keep you from boost creep wile running midpipe is to port the wastgate and recommended fuel pump and bigger secondary's to be safe. You can run just fine with out them these are just precautions.

1QWIK7

iTrader: (33)

i was wondering this all along..

kuning

OK, not trying to hijack the thread here but just wanna hear your input.

First off, my car is 92' jap spec. The car is as it is when i bought it with the following mods :
Intake
Aftermarket pipe from turbo down to cat converter, centre muffler and a 3" exhaust. I don't know the brand but i think it's a custom pipe made by local exhaust shop.
And Turbosmart BOV.
The rest is stock, stock boost, stock ecu n all.

The problems i know so far with the car is the chasis brace(underpanel) has some cracks need to be weld back. The pillowball is making frantic noise everytime I drive the FD. Not sure if I need new toelinks/arms. All 4 wheels aren't balanced and alligned yet. And the power steering is a bit weiry (maybe it's fuked).
Clutch is on the fly making it hard to go 2nd gear and causing some oil leaks. Gearbox has also a crack on it.

I had my car dyno tuned the other day after full service (spark plugs,oil filter n all) but she only made 190rwhp on Dyno Dynamics Dynamometer. It seems to me that these figures aren't quite right I mean, I don't think the engine is running healthy by just making 190hp. I'm assuming the un-needed aftermarket pipe made by the exhaust shop is any good either compared to how loud (yeah no wonder i got pulled over very often) the exhaust is and contributes to this dyno figure. But again, they're just my thoughts and I'm no expert in engine yet.

So do you think 190hp is normal for a pretty much stock FD or is there something wrong with her? apart from the defects I've mentioned?
I did a compression test on the two rotors, 95 and 90 respectively.

Helps are appreciated

|aFk| LiMiTz

190 seems off, i recall fds dynoing at around 210-220

Comet

I also don't want to hi-jack the thread, but since 350-375 at the Wheels is my goal as well, My secondary turbo is shot (as well as the engine and will be replacing it with a j-spec) would it be wise to try to get the 99' specs, or go non-sequential with the stock twins. I intend on doing Fuel Management, Walboro, exhaust, intake, and every line will be silicon, and will I need to go w/ a FMIC or can I get away w/ the stock set-up?

littlemilla3

iTrader: (1)

No...he was saying your car WON'T go kaboom if you run no more than 10 psi. You recommended a knock sensor? How stupid is that? I'll tell you: very. The $500 you are spending on a J&S safeguard is more than half way towards the price of a PFC.

You think my reply didn't make sense? Can you tell me what this means?
If you think you can't blow the engine with just cb and dp, I would LOVE to see you run 12 psi or so, see how long it lasts.

I hope you like the 2835r's, have fun lagging. (doubt you'll ever get them though)

RX7SIGN

The thing is im not running 12psi and I wont my friend. Why would you ever wish a rx7 engine to blow up? Have fun lagging? Do you know the stats on a twin 2835r setup when tuned correctly? Oh yeah you dont just like everything else. It will seriously blow your doors off you cant fathom it my friend. He did say it will be kaboom re-read it. So please keep your hands off the keyboard replying to my posts if your not gonna read them. And for the knocksensor this can be more affordable than a PFC (1,400+ tuned) compared to 250 dollers used for my buddys when not making MORE than a certain horsepower this was more than a blessing for his car. I dont think your even reading my posts and are truely bent on "OWNING" me. lol These threads are created to help people and there faqs. I am asking you to stop unless it is tech talk.

Hey comet hey man I would probably go with a nice front mount setup you wll be really happy especially seing your down with the JDM!

littlemilla3

iTrader: (1)

WOW, can you not read?

Here is what he said:
Do YOU know the stats on the twin 2835r's? What are the A/R's, inducer and exducer size? Do you even know what I'm talking about? Didn't think so.

I'm sure it will "blow my doors off" of my stock twins car. That's great, what do you expect? My car will be a hell of a lot more fun to drive.

The J&S knock sensor is just a band-aid for the real problem - the stock ECU. If you want a real way to stop detonation, get some sort of aftermarket ECU. The knock sensor MIGHT save your engine, but it's going to be making no power because the sensor will cut timing and the car will be slower than if you just ran less boost.

Ok, I'm done OWNING you.

GoodfellaFD3S

iTrader: (213)

There is so much b.s. and utter ridiculousness going on in this thread I am not even going to comment, lol.

Comet, you will not make a real 375 rwhp on stock twins or efini twins, not on a regular/reliable setup. 350 is about it, which is still a fast car, running high 11s and trapping 116ish. The new BNR3s will give you the power you're looking for with ease, however.....I made a solid 350 at only 12 psi.

RX7SIGN

Littlemilla3 you didnt own anything homie. Re-read my posts slow your roll and then comment. I like how you just try and twist my words to make you sound correct but your not understanding my points at all. Your actually stating things that dont have anything to do with what i said. I AM NOT TALKING ABOUT BOOSTING MORE OR MAKING 370,000 HP WHERE DOES IT SAY THAT ANYWHERE IN MY POST. I am speaking on someone who had blown there motor with exhuast and dp are you a jack___. Who purchases a Power Fc with exhuast and downpipe lol. For the sensor It wont be cutting timing if you are running minimal mods but serve as a safe moniter for your overboosting WHEN IT DOES OCCUR IF EVER. This serves a better purpose for owners like you who will not upgrade the turbo's. Im not even gonna say it for the 100th time if your running more mods than exhuast and dp ic intake etc etc than you can go with an aftermarket ECU. See if anybody hear thinks you need a standalone for exhuast. Oh and your car will be funner to drive, you sound like a little kid dude. Any RX7 owner will tell you how fun it would be to drive a car with that turbo setup. Jelousy and competition can inherit traits of ignorance just like a comment like this, my GT2835r's on my car will blow your doors off lol. But seriously man you need to relax because I have more to do than reply to your comments. This will be my last reply to your wasting of my time and others in this post who were trying to recieve feedback to help them until you decided to attack me.

Oh yeah enjoy you ____!

GT2835R X2

53.1 Inducer / 71.1 Major
Housing- 100 Inlet / 50 Outlet - 0.50 A/R
TURBINE:
Wheel- 90 Trim - 56.5 Major / 53.6 Exducer
Housing- GT25 inlet / Outlet spec:
nternal GT28 90 Trim; 0.86 A/R
External GT30; 0.61, 0.73, 0.87, 1.01, 1.12 A/R

littlemilla3

iTrader: (1)

Well, says here that you do want to run more boost...

Once again, I bet if you get twin 2835r's, your car will be faster than mine. You don't even have them, what's your point? Until you get something more than a downpipe and catback, you need to shut your mouth because my car will be much faster.

Until then, have fun beating 996 Turbos
https://www.rx7club.com/racing-kills-lounge-10/my-fd-vs-911-turbo-411489/

matty

350 rwhp isnt enough..must have 400-425

matty
358.8 rwhp

Force13B

iTrader: (19)

Seems to be alot of flaming in here and some good ideas going on. It was a good read considering i just got my FD and was trying to get ideas for it. Thanks for the info on both sides.

Douketsu FC3S

Just maintain and manage your engine well.

sdminus

Second the good ideas on here. but whats it all about in the end!!!!
Scottt

maxcooper

I have a feeling I might read this after your next round of upgrades:

It seems you pretty much get used to however much power your car makes eventually.

-Max

RX7SIGN

HAHAHAHAH Littlemilla that was a different post you f*cking idiot. That was on the first page we never even were speaking about this, this was corrected before you even replyd to me from others who actually know about RX7's. This is what we were talking about and where you got confused and kept replying with your annoying as hell non important and non helpful information and not making sense at all you *******.

RX7SIGN: Okay thanks so next purchase is the IC Intake then next move is a Power FC and silinoid to control boost! I think I will be okay on stock fuel (fuel pump no fuel rail fuel injectors) at like 13psi ; )

Thats what I was speaking on OHHHH OWNED YOU ___!


RX7SIGN: Why would I go kaboom? Lol I dont think getting the Power Fc before IC and intake is a good purchase...agree IC Intake any other BPU's then PowerFC tuned by my buddy Ray at PFC and raise boost.

Corrected one more time you ******. What the hell are you trying to pull out of your ***. And nope my car is faster than your now and when I get the GT2835r's. If I could beat a 911 turbo then I sure as hell will walk you I bet your just as bad of a driver as he is. ; )

Ignorant = littlemilla3

Your hell bent on trying to come out correct but I jus proved you were CONFUSED sorry buddy...NOPE -------OWNED!

Comet

more power is always a good thing, I'm looking to build this for Solo2 and canyon driving, I don't want to over do it for now.... when the time comes for the j-spec motor to die as well, then I'll go single, and shoot for 450-500, but for now, 375 would be bout perfect for me. I'm not too selfish

matty

well i meant if u want to run with the big dogs (aka modded cobras and Z06's)

i agree with you about getting used to the power but my car is done. unless of course the engine goes.