Speedworks

A friend of mine is running a HKS F-CON V Air fuel computer together with a HKS EVC boost controller on his FD. still sequential. low boost 10psi, high boost 14 psi.
320HP dynoed with some other mods (intake, Dp,CB,...)

I'am considering building my spare engine for a single turbo (GT3540) to make about 350 to max 400HP, with high torque/ low rpm configuration.

I s this computer able to steer the single turbo configuration? Saying running low boost 10psi, high 15??

these values to not differ much from my friends seq setup, though the engine behaviour will be so different.

I would like yor opinions on this one.

Many thanks

Broken09

iTrader: (1)

Personally I'd go with either Power FC, Microtech, or Haltech. I haven't seen much info on that computer you listed running a single, where as the three I mentioned have proven to do well.

1bad7

well either you or your friend are lieing... you will not dyno 320rwhp on a stock motor with those mods and 14lbs

if your looking for a good and easy to use standalone go with the powerfc, hasnt failed me yet and it allows you to control just about everything with a datalogit

Infini IV

I don't see how an FD running 14psi boost on the stock twins won't be able to hit 320rwhp... Perhaps I'm missing something?

Dr Wankel

its possible to hit 320RWHP with a stock motor running those mods, mine did.

Speedworks

These are his mods:

Downpipe
>Trust/Hks cat-back
>HKS double intake
>
>HKS EVC electronic boost controller
>HKS F-CON V fuel/ignition computer


I know the PFC is the most wanted for the rx7 but I'm not askig for a 500hp+motor.

He did 320hp on the standard ECu + EVC, why couldn't I get +-350 going single with the same management equipment.
Main reason is that there is a tuner nearby who is a HKS dealer, and tuned my friends car.
He knows what he's doing.
+ The other thing he knows is Motec, but that means a new harness and ecu.Knowing Motec's pricing, that will cost a fortune.

One of the main rules to have an upgraded RX7 is to have a good tuner nearby, no??

1bad7

dr wankel i have no idea on how you pulled off that dyno... with stock injectors and a stock IC you were already dangerously maxing out the injectors and your intake temps wouldve been extremely high. i just hope your motor and twins last

PS: how much boost was that on?

Broken09

iTrader: (1)

If you feel confident this gentleman knows what he's doing in terms of tuning, then you've already answered your own question. It's always a good idea to use a system your tuner is most familiar with. Go for it, as I said my suggestion was solely based on what is most common. If it works out, let us know.
-Nic

Dr Wankel

The run was made at 13.5 PSI

MrRx

iTrader: (1)

that dyno sheet was really erratic....not smooth at all

vspecpgt

only downfall to the hks fcon is that it can only be done by dealers.... its not nearly as simple as a powerFC and datalogit. if he can tune motec and the fcon, i don't see why he shouldn't be able to tune a power FC. steve kan tunes power FC's but he runs haltech on his cars. course he can tune pretty much everything so.....

KaiFD3S

iTrader: (37)

go with a power FC

sillbeer

I would go with the power fc for ease of install. On another note, a buddy of mine dyno'd just over 400rwhp with non sequential twins, full exhaust, intake, evc 5 set at 1.1bar, and maybe pan speed tuned ecu. I'm not 100% sure on the computer he was running though.

-Destin

1revn3rdgen

iTrader: (27)

If you have someone that can tune the f-con v pro then thats what you should get.I heard that the v pro is the best ems out there.

Infini IV

How do you determine what's "best". In the case of stand-alone EMS, what's best is relative.

As noted above, getting the V Pro requires having an HKS authorized dealer to tune it. You can find the list of dealers at www.hksusa.com (there aren't that many).

sk8world

iTrader: (5)

My old set up made 325 at 13.7 psi with the HKS unit on stockers with basic bolt ons.... Did it at Rotary Rev.. I was the first car to make a pull. I have since went single but just wanted to corret you on the fact those numbers were easily made...

1revn3rdgen

iTrader: (27)

It has more features, the tuning map has more point, and has launch a lot more things that i cant remember.Well thats what i was told because i was going to go with stand-alone unit but i just ended up parting out my rx7.

Infini IV

According to the very limited info you could get from www.HKSUSA.com this EMS doesn't really even have that much more to offer then most other stand-alone's on the market.

Speedworks

The guy I'm talking about is the Official authorised dealer for HKS material in my country. the only one.

He is nationally know for his race car experience as wel for street as race cars.

I'm just looking at my options here.
I'm just looking at it from my side. Apprantly you can the engine seq or non-seq on the standard ECu with or without piggyback.
non-seg is pretty much what a single does, so why not?

My car is a weekend drivver, mainly for shows but will be driver regularly.

maybe now and then on the track, just for fun, never competition or whatever.