Yep.

 

Did you guys use a porting template to port? If so where did you get it from. Or you just ported by free hand?

 

that is bad ***!

 

I've never heard that much tire noise from an rx8.

I crown you the new DRIFT KING!

 

Bump

 

Hey Kostas, nice job!

 

At what boost?

 

It depends from the porting.

The GReddy turbokit uses a small turbine. I think its logical that it can't achieve much power at the high revs.
So what's left? Torgue at low range, and that it is.


Anyway, Kostas at what AFR did you tune?

 

We testly ported by free hand and we make our own porting template now.

Jay did you notice your carbon fiber eylids, rear lip spoiler and mirror covers on my car?

I said to you that the car entered in the track with new tires, here is how it came out.

 

topaz I will scan the chart and I will upload it here, it’s at the dynamometer now

 

Sweet! looks great on your car. So proud to have you with our products! keep up the good work!

 

Hey Mauros you going to be selling the porting templates?

 

omg MANIAC love ur avatar.mm suggestion next time .,,, tell her to raise her hands up. loll\

 

oh YEAH BY THE WAY BRO NICE DRIFTING , i love the vid ,,,,NICE Driving.

 

No my friend, sorry, we just do it for our pleasure.

Here is an other project
This car dynoed (at 1bar) 500ps/60KgM





VIDEO
http://www.youtube.com/watch?v=3NzPMRpTfTE

 

i had a question. the car displayed is ported and turbo'd at 300whp?
Is this the greddy kit?

reason being - the greddy kit on its own can make 300whp, so what did the porting accomplish? Not trying to sound cynical but just curious what the benefit was.

-hS

 

I think that has been the general question posed by most in this thread.
He seems to be asserting that the porting increased the torque peak, but that seems kind of strange without increasing the total power as well.
Might just be an anomaly of the flow capabilities of the turbo or the typical overwhelming of the WG actuator.

 

That's exactly what I want to do on RX-8. FD engine with single turbo!

 

The car produced 39Kgm of torque. The stock Greedy kit, even at 10psi, cannot possibly produce that much torque (nominally goes up to 32-33Kgm at this boost level). So the added torque can be attributed to a) porting, b) tune (since no other modifications were done).

The "not-so-high" HP output is indeed a factor, since 40Kgm of torque with just mediocre tune and airflow at high rpm would suggest at least 320-ish HP. That, I cannot explain...

 

Unfortunately, this is still an "estimated" number since your graph contains some sort of conversion factor to "crank" power.
We will want to see the real numbers before we can make any valid comparison.
For instance, if you apply the same sort of conversion that your power numbers seem to have used to a typical GReddy output, you get 36 to 37 KgM at a comparable boost level.

 

i dont want to sound like im crapping on this thread. The owners car is very nice as it is. I just was more curious to the actual benefits of porting. Nothing in ur above post really defines anything as its all based on assumptions.

uncorrected dyno chart please.

HONESTLY - ive never seen anyone post a dyno chart corrected for the assumption of crank power. who does that and seriously - who cares? just post up the whp, uncorrected and type of dyno used. this isnt a ***** size battle for the person with the most power... just trying to get some relevant data here.

REASON why i bring this is up is because weve seen previous threads where people have ported and reported back there was no significant power gain. The ports on the stock renesis are large, and making them larger doesnt mean it will be beneficial. Previous threads i saw were on NA cars, to see this on a Turbo'd car would be interesting to know.

also - the turbo used in the greddy kit is physically restricted to 310whp. please dont tell me its getting 320whp and expect us to believe that. reminds of a guy locally who claims to be making 500whp out of the same kit.

-hS

 

werd - my bad. i didnt read the whole thread. didnt know it was being asked already.

 

Guys, I'm not the owner and OP, nor am I the guy who did the porting and/or turbo installation. I'm just a friend of the owner, who just happened to know a bit more about what has been done to the car. Hence, when some guys posted some questions about the video, and since the OP was nowhere to be found, I answered the questions that I could.

Like I have already said in my initial post, I haven't the slightest clue about the porting job, nor about the small details about the turbo installation. I just know the general work been done to the car, and that I have seen it several times. I also know the history of the car and its modifications.

I know that the Greddy kit was installed more or less "as-is", and no other major mods were done.

Oh, and as far as the specific dyno is concerned, I know that it's a DynoPack, it produces the flywheel HP/tq automatically (hence the conversion factor), and that it is VERY conservative. No one ever claimed "320WHP" either, it was merely assumed by the other guys.

Take into consideration whatever you like from my above statements...

 

The proof is in the pudding.

 

But we have never seen those numbers on a dyno, the best we saw was 32KgM.



Please can anybody explain me how did you make 300whp with a stock greddy turbokit on a stock renesis? You are talking for wheel power right?
The best tuned greddy turbo I ever saw was at 0.6 bar 280ps (flywheel power) sorry but this unit is got used here.



In the 3rd page of this thread (my dyno chart) I can see 20-40ps and 7KgM Torque gain from a non ported renesis.