Faster Is Faster

It makes not different is it on or off. Not more power(maybe a few hp) or more lag. It keeps spark plugs clean, thats almost only benefit of it.

it sprays 250ml/min and comes along at 0,5bar boost pressure. I have 3 different size injectors for it but havenīt got a chance to try two of them.

Turblown

iTrader: (12)

stock ports? Turbine a/r is a little large as mentioned. What trim turbine wheel? It should not spool up that late. A dyno chart would help....

Faster Is Faster

Noup, Racing beat street port. donīt know what trim turbine wheel, I have to find out and get back to you. When you think I should see full boost and what could be the reason for late boost?

carx7

iTrader: (31)

Hmmm, I would expect you to see "full" (10psi) by 3000 RPM or so... but definatley before 3500. My turbo, which is much larger than yours makes 15psi by 3500 and 19 by 4000.

Tunning could definately be hurting spool, or the hardware itself could not be working together.

Find out what trim your turbin wheel is for sure. Hopefully it's a "P' trim. If for some strange reason it's a 'Q" that could explaing some of it. Also, what manifold are you running? That will affect spool as well.

Is your exhaust mandrel bent? What does the piping comming out of the turbo look like?

carx7

iTrader: (31)

Also, as Ted mentioned... you have got to be running on the edge of what those injectors can support. Find out what your AFR's looked like also.

hIGGI

iTrader: (7)

2" piping is what is killing your power (and probably spool) but it makes high torque number.....

U should be running 3" piping all the way.....

Jaared

do you still have a 4" dp? that helps spool i bet.

carx7

iTrader: (31)

Yes, I am actually debating with myself if that's the right answer.... but my jury is still out


I totally missed the 2" IC piping. That is definately too small and would explain a lot.

chris_stampe

Ok, I have a very similar setup to4b with a .6 and 1.15 ar's. I also have a rb streetported motor. Now it depends on what gear, but I see boost at about 3700 or so in 2nd and 3rd. 4th and 5th are sooner, 1st is about 5 grand or later. I am also only running 6psi. I just got a standalone and am going to order a different wg spring. What is a good boost pressure to run w/ this turbo. I mean what is its sweet spot. I have 1600cc secondaries so fuel is no problem. I am going to run a microtech ltx8 w/ msd ignition. i was thinking right around 16psi.


Oh, I have 2.25 ic piping, and my power is great top end. I run low 13s on my stock computer @6psi ....sorry no dyno sheet yet.

Faster Is Faster

Do you think piping matters that much?
Donīt you think 3" piping is a little too big? If the piping is too big, doesnīt it make turbo more laggy? Would 2,5" piping be better for my setup?

Iīd be happy if I could see full boost at 4000rpm, is it possible?

Wankel7

So you spent all that money on an Aquamist setup to keep your sparkplugs clean?

You don't just start spraying water in the intake and expect gains. You need to tune the water just like you do fuel.

Sounds like you should keep it off until you get this problem figured out.

Where is the injection nozzle?

James

Faster Is Faster

I bought the aquamist before my FMIC and it was a big help THEN but now I have bigger IC and it make aquamist less useful.
injection nozzle is about 4" from the rubber bend just before TB in IC piping and it has a pressure switch to control it. I donīt see any harm to keep it on. Or is there?

DEZERTE

post a pic of the sheet..

bcty

keep it on there just play with it a bit and find out what right for your car.. but for sure get a boost controller on there it will help things lots.. i just use a plain manual turbo xs one and its fien just set it ater whatever like 13psi in your case and forget it.. that is plenty of power but look at your AFR's and i am sure you can squeeze some more outta there.. and this is on the stock ECU? go grab a microtech or something!

eViLRotor

iTrader: (2)

Your aquamist is still very usefull. It reduces intake and combustion charge temperature. You can run more boost, more aggressive timing and make more power.

You can also run leaner AFR's.

$150FC

A standalone would help.

What RPM was your max torque at? I don't see any way you put 400tq to the ground.

2" intercooler piping is too small, eh?

Faster Is Faster

[QUOTE]Originally posted by btcy

[B]keep it on there just play with it a bit and find out what right for your car.. but for sure get a boost controller on there it will help things lots.. i just use a plain manual turbo xs one and its fien just set it ater whatever like 13psi in your case and forget it.. that is plenty of power but look at your AFR's and i am sure you can squeeze some more outta there.. and this is on the stock ECU? go grab a microtech or something![B]

Who make good boost controller? How easily can I adjust my boost with it? Is it just "pushing buttons"?

I should propably go to dyno to find out my AFR and then tune it. What is safe AFR that can be use on rotary engine->how low can I go without KABOOM?

I have F-con+gcc now, Iīd like to get haltech but itīs so damn expensive(install included) that I canīt afford it.

Faster Is Faster

I donīt believe it my self! I donīt have dyno sheets so I just have to believe my friend who tuned and dynoed the car.

How much a standalone would help? Iīve always though that with my setup 400rwhp would be possible. Iīd be very happy to get 350rwhp.

I know now i need bigger IC piping etc but still is it possible?

eViLRotor

iTrader: (2)

There are many good electronic BC's around. I have the GReddy Profec B spec II. The original Profec B is also very good. There is also the Apexi AVC-R and many other high quality units.

Yes, basically raising your boost above wastegate spring pressure is just pushing buttons with a BC. You adjust the duty cycle of the wastegate and the gain on the solenoid to get the boost presssure you want and the boost response you like.

A boost controller not only raises your boost, but gives you a much steeper boost curve, over just running the wastegate spring. Boost comes one a lot quicker and it will hold your desired boost longer.

A good safe AFR is about 11.5:1 at WOT (full throttle). You can go richer for more safety.

Tuning fuel is easy. The key to getting the most power and the best response out of your setup is IGNITION TIMING. That is where a good tuner, with rotary knowledge can make a world of difference.

I know how much more responsive my car has gotten, just by adjusting the timing maps on my car, especially the midrange power.

But there is a fine line that a good tuner knows not to cross

----

And yes, a T04B 60-1 should get you 400whp between 15-17psi with good tuning...

Faster Is Faster

How much ignition timing can be adjusted? I`ve heard thereīs a limit but donīt remember what it is. Is there a lot of differents between tuning a rotary and piston engine(AFR,timing etc)? The reason Iīm asking is that in my country (finland) here is less than 50 rx7 in the hole country and less than 20 TII. There is ONE guy in the hole F* country who knows alot of rx7 and luckily I know his very well but Iīm sure He is the best man for tuning.
On the other hand this another guy is a real specialist with piston engine but has never tuned an rx7.Who would be better to tune my car?

RETed

If you're running the stock ECU, don't mess with the ignition timing.

-Ted

Faster Is Faster

First post on this thread, No Iīm not running the stock ECU. I have HKS F-con and GCC.
What a about the tuning issue? To whom should I take my car tu be tuned?

RETed

You're a bit confused.
The HKS F-CON + GCC does not replace the stock ECU.
You need to reread my replies; the 720 secondaries is not enough fuel injector capacity to support over 300 to the wheels.  I bet the fuel injectors are locking up.


-Ted

Faster Is Faster

Sorry my mistake.

And yes I agree that 720 is not enough if I go for more hp. Iīm running at 11psi now but planning to go 14psi. Then I need more fuel and itīs coming. i was thinking 2x550 extra injectors because itīs going to be sheaper than 1100cc secondaries. How much Haltech cost? I really would like to go there but donīt know can I afford it yet.

...and what about the tuning issue again..?

Jaared

if the GCC can only tune 15% then you cant run 1100 secondaries..... well i guess you could but you will never be able to tune them.

The f-con is for stock injectors.... it says it on the site. I read thats why they made the gcc only tune 15% to discurage people from using it for what it is not designed for.