BNR stage 3's (470whp 400tq)

[TitaniumTT]

Originally Posted by RICE RACING

When you test them in real life, like in a car and see how fast they accelerate then you truly know how much power you have

Do you have access to a VBOX? I can share heaps of twins cars (BNR's, RF420's, other custom units and stock at up to 1.5bar boost) I have tested and they are MUCH slower irrespective of dyno types used to get the numbers. Check out my web page under VBOX testing and dyno dreams.

http://www.riceracing.com.au/vbox-ii...ing-tuning.htm < *see where you fit here* see real VBOX power @ wheels and I call dyno dynamics BS machines LOL as they give inflated numbers LOL

Do a simple test of your car in 3rd gear from 90kmh to 140kmh and let me know how fast it is. Lets add it to the FAST FD thread
You will be around 3.2 to 3.4 second range is my guess single turbo on lower boost is under 3 seconds as per TTT's comments. and really fast cars are cracking 2 second barrier.with same 470rwhp LOL but its real power based of physics! not dyno guesses with mythical factors in software code

FAST FD thread >>>>> http://rotarycarclub.com/rotary_foru...ad.php?t=14704

Truff.... I need to find a VBox.... I believe a poster or 2 in this thread have one....

Originally Posted by RICE RACING

I like your project too (just read the thread on the external gate mod)

I like it as well... I've said for years that the turbo's are capable, but the mani and the plumbing are what really hold them back.... then again, I'm logging EMAP and the individual compressor outputs and pre-intercooler AIT's... I'm not just guess

Originally Posted by RICE RACING

It is the reason why I never went to do it after trying so many vendors twins run in parallel ........... the boost curve and matching torque is always poor.

By example my 82mm compressor 1400bhp capable turbo spools faster and earlier than your twins but it is not as cool LOL.......... I think that is what TTT is getting at with his single comments.

Basically exactely what I'm getting at....

Originally Posted by RICE RACING

Will be good if you can test it and we can see how fast it is

90kmh to 140kmh in 3rd
100kmh to 200kmh (3rd to 4th) and lets see some numbers

That....

Originally Posted by ball joint

I'll see if I can get my hands on a V-Box to get numbers. As for the dyno number, on BNR's website the power numbers they list are from GoodfellaFD3s when he ran them, and he did it on a Dynapak. This Dynapak is the same Dynapak that Logan at Defined tunes on, so if my numbers are BS; then so are the numbers he makes on his N/A 3-rotor.

As for why I haven't gone single, for the same reason that I tune rotary's, it's different and it's unexplored territory. I will go single one of these days, but until then I want to see what is possible with the stock frame turbos.

Thanks for all the compliments!

In that case.... go for it! Personally I got tired of replacing cartridges 2-4 times a year so I gave up with the twin idea... on the stock mani

Originally Posted by JhnRX7

I believe what Rice is saying is that using a dyno to rate the performance of your car is ill conceived as each dyno reads a bit differently (even between same manufactures) and it is not accurately comparable. Dyno's are primarily a tuning tool regardless of how the masses actually use them.

THAT..... although... I've been "street tuning" my car for years now... there are certain places you cannot get to on a dyno, and certain places you can't get to on the street....

Originally Posted by JhnRX7

Using a V-Box or similar GPS based performance meter you can accurately measure the rate of acceleration of your car. This can then be directly compared to the measured figures of other cars to give you a good baseline of the performance of your car. Granted, doing this correctly is slightly more difficult than strapping your car down to a dyno because you will likely be breaking any posted speed limits and you need a flat stretch of clear road.

John, you and Dan have a VBox correct? That's not the box I used @ Lightning that day is it?

[JhnRX7]

Originally Posted by TitaniumTT

In that case.... go for it! Personally I got tired of replacing cartridges 2-4 times a year so I gave up with the twin idea... on the stock mani

THIS! Im about to jump ship from the twins myself... Just lost another cartridge and I have not even done a track day yet this season. I had the twins on and off about 8 times last year (for various reasons), not sure if I can bring myself to do it again.

Originally Posted by TitaniumTT

THAT..... although... I've been "street tuning" my car for years now... there are certain places you cannot get to on a dyno, and certain places you can't get to on the street....

I have completely tuned my car on the street, however I REALLY want to get onto a load dyno to do some steady state tuning. BTW, my ECU setup has changed a bit since we last spoke.

Originally Posted by TitaniumTT

John, you and Dan have a VBox correct? That's not the box I used @ Lightning that day is it?

Correct, and it is the same one you used. We have a Racelogic Performance Box. It is made by the same company as the V-Box, but is less expensive than a full blown V-Box. Great for track days and acceleration tests.
http://www.racelogic.co.uk/index.php/en/our-products

As another option, you could get the GPS unit for your AIM dash and it will accomplish the same thing. However you cant transfer that between cars.