NoPistons -Mazda Rx7 & Rx8 Rotary Forum - Water Injection Results/Testing

NoPistons -Mazda Rx7 & Rx8 Rotary Forum (https://www.nopistons.com/)

- Rotary Engine Building, Porting & Swaps (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/)

- - Water Injection Results/Testing (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/water-injection-results-testing-69276/)

Here is data posted on www.fdowners.com, though you people might find it of interest

from this thread VBOX testing http://fdowners.com/showthread.php?t=23

REAL WORLD PERFORMANCE FIGURES AND DURABILITY TESTING OF A HIGH POWERED (750BHP) 13b TURBOCHARGED ROAD GOING CAR, VBOX DATA + CONTROLED NATIONAL DYNO COMPETITION DYNO RESULTS (3 BACK TO BACK RUNS IN FINAL POSTED IN ORDER LOWEST TO HIGHEST SHOWING CONSISTENCY OF WATER INJECTION !, CAR HAS COMPLETED 40+ RUNS AT ON ROAD REAL 600RWHP DURING CALIBRATION OF ENGINE, COMPRESSION READINGS UNCHANGED OVER THIS TIME PERIOD https://www.nopistons.com/forums/pub...IR

Here is some VBOX data on Jake's Capella taken from Ausrotary including Pete's comments and a link to the thread. This car made 3 runs in the finals at summernats making 563 RWHP, 582 RWHP and 588 RWHP respectively. This was done on a Dyno Dynamics so for Dynojet the figures would be approx 647 RWHP, 670 RWHP and 676 RWHP respectively. Done on NRS 3mm 1pc

Also a pile of info, links etc for the Racelogic VBOX. Any questions you have for Pete you can ask them here:

Quote:

Originally Posted by RICE RACING

https://img.photobucket.com/albums/v...ladynoscan.jpg

http://img46.imageshack.us/img46/756...kphto15jt1.jpg

^ *graph notes: 25+psi boost 2.7bar abs, 35 deg C ambient day ....... pump fuel water injected road car in full street trim

http://img293.imageshack.us/img293/2...parisonia1.jpg

^*This graph shows the trend of G from 110 to 160 and you can see the relationship of G fall with speed is roughly equal between the two (the drop off in G on the Mazda @ 160kph is due to rev limiter and resulting fuel cut followed by drop in boost), its just the Mazda is offset much higher, end result is it will get to its potential top with ease, in a much much shorter space of time and more importantly lenght of road ........ OR every single body panel will fly off, and the street tires will explode :!: (more like it LOL)

http://img135.imageshack.us/img135/466/zonda2zu4.jpg

^*Mazda 13BT Water Injected pump fuel V's Zonda supercar 110 to 144kph increment (both in peak power band)

http://www.riceracing.com.au/Videos/500_bH...r-injection.wmv

^*Video of Capella on lower power setting during testing/development

We have a new performance measure which we will use as a standard for wannabe's

120kph to 160kph

^ This is nominated as its a good highway overtaking speed and has meaning to most in real world + wont result in major jail time https://www.nopistons.com/forums/pub...IR#>/smile.gif

you can start at 100kph and go to 170kph and analyse figures between to get a run up etc, does not worry us.

This must be done on flat ground and also with decent test equipment to be considered for posting as a legitimate result.

(you can do this test in your most appropriate gear *decent performance cars,bikes will be in meat of power band and require no gear changes*)

NOTE: gear change noted with * next to time if necessary

Here is some figures for you... also expressed as FD car length difference, from fastest to slowest in EXTRA distance required to do this

speed increment over the quickest car (4.3m = 1 car length)

1. 588 rwhp water injected pump fuel 13B Turbo Capella *two people in car!*

1.77 seconds !

fastest 0 (69.22 Meters)

2. Pagani Zonda 650 bhp @ 6200 from 7.3 L V12

*2.71 seconds

8.6 car lengths (106.41 Meters)

3. Ferrari F360 395 bhp @ 8500 from 3.6 L V8

*3.70 seconds

17.8 car lengths (145.85 Meters)

4. 230 rwkw *tuned* Spirit R Type A

*4.43 seconds

24.8 car lengths (175.77 Meters)

5. Stock Spirit R Type A (13.85 sec car)

*4.94 seconds

29.3 car lengths (195.15 Meters)

We will have even more advanced equipment facilitating the ULTIMATE in precision testing for Rotary water injected love...read below.

RR has just stepped up to a VBOXIII set up, this is the top of the line system. Very expensive, and without a doubt regarded as the best in the world, by pretty much everybody who is in the Automotive Engineering development world.

Around 30+k worth of gear! for all of my tuning/testing equipment.

You can be assured when you come to me your car will be fully analysed and professionally tweaked with the worlds best equipment, and the results obtained will stand up to ANY scrutiny https://www.nopistons.com/forums/pub...DIR#>/wink.gif

http://www.racelogic.co.uk/__VBOX/Images/Popups/vb3.jpg

http://www.racelogic.co.uk/__VBOX/Im...ps/dsp03-l.jpg

http://www.racelogic.co.uk/__VBOX/images/mfd-setup.gif

http://www.racelogic.co.uk/__VBOX/im...ph-800x600.gif

http://www.racelogic.co.uk/__VBOX/Im...ps/mim01-l.jpg

http://www.racelogic.co.uk/?show=VBOX-Products-VBOX_III

^ My new VBOXIII set up with multi function display https://www.nopistons.com/forums/pub...DIR#>/wink.gif

Acceleration rates, naw give me CHROME turbos! That box is $30k and only has 4 T/C inputs?

This is the page your after https://www.nopistons.com/forums/pub...IR#>/smile.gif hehe https://www.nopistons.com/forums/pub...#>/biggrin.gif More inputs than most would know what to do with them all lol, I have not added them all up but its an absolute **** load ! https://www.nopistons.com/forums/pub...IR#>/wacko.gif

http://www.racelogic.co.uk/?show=VBO...-Input_Modules

http://www.racelogic.co.uk/__VBOX/im...ical-setup.gif

VBOX3 (22k)

Mini Input module

Neko AF700 + Autronic B Model EGA (2 seperate top end quality AFR meters)

8 pressure transducers

2 high quality thermo couples

Wiring harnesses

IBM Tablet PC

= 30++k of stuff

Yeah gimmie chrome turbos and 22" wheels any day

Quote:

Originally Posted by 1Revvin7' post='898275' date='Apr 9 2008, 09:27 PM

Acceleration rates, naw give me CHROME turbos! That box is $30k and only has 4 T/C inputs?

What turbo is that car running? That thing accelerates like a mad man. I've never done anything near that power level and I'm kinda curious if there is a need for some of these huge turbos...

Quote:

Originally Posted by 1Revvin7' post='898416' date='Apr 11 2008, 05:58 PM

What turbo is that car running? That thing accelerates like a mad man. I've never done anything near that power level and I'm kinda curious if there is a need for some of these huge turbos...

I know this may be hard to believe for some here, but that video is the car on low boost (21psi dropping to 15psi!) on early test engine (with steel apex seals and different compression ratio)

It runs now ~27 psi different *lower compression ratio* and NRS ceramic seals (see VBOX data). Its acceleration in this current form is INTENSE https://www.nopistons.com/forums/pub...IR#>/wacko.gif

The turbocharger is a old Garrett T51, it has minor dia's of 72mm for the compressor wheel, & exhaust wheel is around 76mm? (cant remember!) turbine housing is split 1.15 GT style. It was an old ******* turbo of a mates car that had been shared around, been through quite a few hands lol

Its how the car runs every time its driven, on normal pump fuel and water injection WITH air filter attached and a full exhaust https://www.nopistons.com/forums/pub...IR#>/smile.gif WITH regards to larger turbo? well with the VBOX I logged real wheel slip (real wheel speed to true car speed) and you can see the limit @ 80~100mph is about what this car has...... in the higher gears (more road speed) you could run higher boost and power since the moment arm stays the same but Rear Wheel Tq drops with the increasing speed https://www.nopistons.com/forums/pub...IR#>/smile.gif then you need a bigger turbocharger https://www.nopistons.com/forums/pub...IR#>/smile.gif (would be nice to run 36psi in 4th and 5th gear, theoretically could do it, but as you say even on lower boost the thing just FLAT OUT HAULS!))

She is the practical best solution now, I guess you could run more power than the ~750bhp (estimated engine power this thing makes) but how long term in a street application that would be, I have no idea...... YET https://www.nopistons.com/forums/pub...IR#>/smile.gif *always learning though*

http://www.ausrotary.com/viewtopic.php?f=2...2&start=500

Here is another one, this a real budget build up! Cosmo donk *stock* BW turbo and pretty conventional stuff with Rice Racing WI, and advice on ignition set up, and tuning....... bloke seems pretty happy https://www.nopistons.com/forums/pub...IR#>/smile.gif he should have some dyno figures soon.

Have a read through his thread, its a real marathon but shows what can be done on a budget of your willing to put in the time! https://www.nopistons.com/forums/pub...DIR#>/ohmy.gif

hey guys i wont he above vehicle with stock import 50000km cosmo block etc.running 25psi,w/i,cdis and rice advised tune up. it fukin flies.

i have gteched on first attempt a 12.2@119mph on 12psi,and 4.0 0-100kmh time,so u can understand a 25psi boost level sure improves its accelleration over that 12psi level.i will do a 120-160kmh pull on my gtech,as an example,i understand ti wont count as its not a vbox time,but its pretty accurate afaic for this comparison,and im confident i can beat that pagaddi zonda as i just checked and i can do 120-160kmh on 12psi boost in 2.91seconds,so im pretty sure i can flod a zonda now.hahahahahah

Systems check, everything in sync.......... ALL GOOD!

http://img139.imageshack.us/img139/907/vbox5tb8.jpg

http://img217.imageshack.us/img217/6243/vbox6vw6.jpg

& Laptop screen set up to view more parameters when needed

http://img217.imageshack.us/img217/2798/vbox7gw2.jpg