A morning at the dyno...

[GT4 20]

Following the arrival of the Apexi Power FC last Friday, it was 'installed' on Sunday and today was the day it was properly mapped.

While it did have base maps already 'on board' and the car was driveable, it certainly wasn't as good as the OE ECU - it did smooth out a couple of flat spots on trailing throttle, but it obviously wasn't good enough to be driven on for any period of time.

This was immediately blatant on the dyno when at cruising revs, the ignition was being advanced to +50 degrees And that is not a typo.

Anyway, a couple of hours later and the engine was running very sweetly indeed and was producing some decent figures. I'm still essentially running the motor in and as such, am keeping the boost down for another 3000ks just to make sure.

Two boost settings have been set by the Profec B - 13.6psi and 10.5psi.
Here is the 'High' setting...



Pretty happy with that. Only 8kW lower than the previous dyno before the work was done and running 16.2psi.

The lower setting showed 164.3kW - again with a beautifully flat torque curve. This chart has been overlaid with a mate's ST205 readout who is running an Apexi Power FC, high flow CT20B, full exhaust and K&N panel filter...



An obvious difference in power delivery - especially at the top end of the rev range. Other engine is running out of puff below 6000 while mine is still pulling like a schoolboy at 7200 with a higher boost setting. A testimony to the HKS 264 cams and fully worked cylinder head. Things can only improve with a bigger turbo, exhaust and tubular exhaust manifold.

Have to say I'm a happy chappy
Gary

[86_rolla]

i have absoloutly no idea what any of that stuff means but it sounds good

[Ako]

That suckers gonna absolutely thrive on more air being thrown at it, have fun!


cough*GT3040R*cough

[Leon]

So, exactly how many competition cars are you building then?

[GT4 20]

So, exactly how many competition cars are you building then?

Just the one. This is my daily drive
Gary

[Pies]

*coff*wanker*coff*

[Akane]

The PowerFC's 50 degrees advance is normal while crusing / high vaccume. And you should pick up a few more hp over the OE ECU due to it's more agressive fuelining and timing settings.

Since money is (almost) no object to you (with that expensive build of yours), you should've dyno'd with the OE ECU back-to-back with the PFC.

[GT4 20]

It's not a case of 'money being no object', just that if I do something, I want to do it right first time. It tends to get expensive if you cut corners and end up blowing the engine.
Gary

[RomanV]

It's not a case of 'money being no object', just that if I do something, I want to do it right first time. It tends to get expensive if you cut corners and end up blowing the engine.
Gary

Quoted, just so people read it twice.

[fivebob]

It's not a case of 'money being no object', just that if I do something, I want to do it right first time. It tends to get expensive if you cut corners and end up blowing the engine.
Gary

Quoted, just so people read it twice.

Won't do much good, I've been saying the same thing for years. Some people will always try and go the "cheap" route, which ends up as the more expensive alternative almost every time

[RomanV]

Although, I suppose I'm not one to talk anyway.

I reassembled my engine myself, and time will tell if it is going to blow itself up as a result.

[Akane]

I just wanna see what the gains are, nothing to do with cutting corners, and I know Gary is "bling bling", I want his DSLR camera! Pity no good night scenes in NZ for me to shoot it with tho even if do own one of those badboys.

[GT4 20]

I know Gary is "bling bling",.

I'd hardly call myself "bling bling" There is a difference between using decent stuff and things that are just for bragging rights
Gary

[Mr Revhead]

you mean like TRD oil caps?

nice figures, cant wait till you get the turbo etc done and its all complete.
then you owe me a ride in it