RICESP Water Injected RX7

[thefalls]

Car sounds very good,and damn its fast!

[RICE RACING]

Originally Posted by thefalls

Car sounds very good,and damn its fast!

Thanks

It's even faster than in the video at the new settings (boost up, charge temp lower, WI rate up!)... gotta keep some stuff to myself though shared enough older information which others can freely copy.

Totally amazing how much performance you can get out of these things!, despite all my years doing this it still does shock me each time you get into it, especially realizing just how normal all the parts are at the end of the day and that it is a true road going fairly heavy set up.

[RICE RACING]

Latest testing:

Have reduced charge temperature in same conditions by over 15deg C, with parallel performance increase this gives (due to charge density improvement), combined with nice reduction in exhaust gas temperature.

Starting to reach practical limits of traction in 3rd gear though *sub 100mph* !!! (in straight line testing)
I am so impressed with just how fast and powerful the Water Injection is allowing, everything is impressive even for a seasoned veteran like me, but the durability is the best bit, well maybe a close second to the warp speed and tire shredding ability

Such small refinements, stuff that most would maybe overlook and continual testing giving big elevations in performance along with better operation of the engine, not trying to overstate it but not something I'd underplay either............ really the more time you put into the calibration the better the results you will see, just when you think that is enough, you find another level of performance, it is unreal what you can do with WI

[RICE RACING]

My New dash board



Nah seriously, it's just a random picture I got of a Lotus 98T (proper F1 car) 1986 unlimited boost era, you can see the EGT label printed up on dash under the digital display showing max of 1120 deg C and air inlet temp of 60 deg C and water temp 90 deg C....

During qualifying they took off the waste gates and replaced them with covers, Water Injected! and Water Spray on intercoolers

58psi+ boost and more watch it here > http://www.youtube.com/watch?v=9dWLh...eature=related what 1300+bhp worth of water injection and maximum qualify boost looks like!

[RICE RACING]

I will attend a local car show with dyno competition being held next weekend, will be interesting to see what it shows on this particular rolling road v's my measures. Have not changed too many things since the final performance tests, though it is very quick and the on board power measure and times are the highest and fastest I've ever recorded at this basic boost setting. I'll run it as is and resist tweaking anything else so I can get a good comparison.

[Richard L]

Peter, instead of flicking back on all the pages, what is your best 1/4 mile time on street tyre, despite you are not a full time drag racer.

All the other rolling logs are amazing.

[RICE RACING]

Originally Posted by Richard L

Peter, instead of flicking back on all the pages, what is your best 1/4 mile time on street tyre, despite you are not a full time drag racer.

All the other rolling logs are amazing.

Hi Richard,

I am yet to do a "formal" test on that, last "legal" opportunity was a wet run way and I can't get to borrow it that often on that occasion I focused on the 60-130mph measures and some durability testing.

I'll have to get back out there and do an old school 1/4 mile test and terminal velocity test at the end of that distance, probably wait for some favorable weather (cool dense air) to get some nice Hollywood numbers I want to go back and record a 6 second range 100kmh to 200kmh time on the new high boost setting I read back through all the posts and see a common theme of ever changing "I'll be happy with XYZ" and each time it just gets higher and higher.

Been a great project, and learned so much about WI and integration with other elements in the engine to make it all work. Allot of the data collection I am going to use in a course for my students next year....... as you know nothing better than testing all of it yourself and even better when you can prove it to work as we have

[Richard L]

A project like this is highly entertaining and rewarding especially as each little mystery is uncovered, enabling you to extract more and more power safely with water injection.

[RICE RACING]

Finished the tests with the OEM based inductive ignition, been good to work with it for a while to find exact limits of it with regards to water injection usage. Have fitted up a new specification Capacitive Discharge Ignition and it is like night and day difference in power, response, and engine running...... whole new world of options for setting the engine to make the most of water injection.

Where it is now is like its base. So far in only last couple of days I have been able to implement a whole new strategy for setting of the water injection system, to the benefit of the charge temperature, also showing a noticeable increase in performance Have a whole lot of tests scheduled over the next couple of months. Car is a total addiction it's better than any heroin hit, get massive withdrawals if I don't drive it every week, the performance is flat out gag factor! I have to be real careful each time I drive it though the speed attainable (you need to remember its so easily accessed being a true road car!) reaches high levels. See this for some context! > http://www.youtube.com/watch?v=nmFTy...eature=related and remember RICESP in its ~20psi guise is already faster than this all time legend

[RICE RACING]

Here is pics of the RR COP CD system mounted up (CDI boxes next to battery on custom holder), wiring harness and COP's installed.

Few bugs from extensive real world testing on the front! they stand no chance at "moderate" speeds