My RX7SP build up

[RICE RACING]

O.K. Remember pump petrol here !

90kmh-140kmh = 2.26 seconds!
100kmh-150kmh = 2.39 seoconds!
100kmh-200kmh = 6.25 seconds!

Still on old tires, and showing about 24psi boost on the VBOX, and ~330rwkw VBOX POWER!!!

Tested at 1320kg run weight and 25 deg C ambient day, still doing boost learning procedure so there is a bit more in at this level and fuel mixture set rich to be on safe side.



Fact V's Fiction

Will put up some graphs when I get them off the lap dancer top

Here is the graph of the 2.26 second 90-140 test this car has a *massive* power band, not normally seen on genuine 13B road cars of this level of performance and speed!@ the word "response" does not do it justice! It builds one bar of boost at around 3400rpm in a transient test, and near its maximum boost setting well before 4600rpm and it does it even in the low gears which only take a second or two for 8000rpm, its fantastic..... best road car set up ever !@

[1FaastFd3s]

Great read and what a last update! Do you have any videos of the current setup? Cant wait to see what 30+psi on this setup will do. You are currently running 50/50 water/meth, no longer just water correct?
David

Originally Posted by RICE RACING

O.K. Remember pump petrol here !

90kmh-140kmh = 2.26 seconds!
100kmh-150kmh = 2.39 seoconds!
100kmh-200kmh = 6.25 seconds!

Still on old tires, and showing about 24psi boost on the VBOX, and ~330rwkw VBOX POWER!!!

Tested at 1320kg run weight and 25 deg C ambient day, still doing boost learning procedure so there is a bit more in at this level and fuel mixture set rich to be on safe side.



Fact V's Fiction

Will put up some graphs when I get them off the lap dancer top

Here is the graph of the 2.26 second 90-140 test this car has a *massive* power band, not normally seen on genuine 13B road cars of this level of performance and speed!@ the word "response" does not do it justice! It builds one bar of boost at around 3400rpm in a transient test, and near its maximum boost setting well before 4600rpm and it does it even in the low gears which only take a second or two for 8000rpm, its fantastic..... best road car set up ever !@

[RICE RACING]

Originally Posted by 1FaastFd3s

Great read and what a last update! Do you have any videos of the current setup? Cant wait to see what 30+psi on this setup will do. You are currently running 50/50 water/meth, no longer just water correct?
David

Hey David,

On holidays now, so start of next year will get back into testing and updates

I'll fit up my new tires and the camera and take some video of how she goes, currently its on 26.3psi or 1.8bar gauge boost pressure.

I have run WM50 for the last 2 years, logical progression from water really. I did allot of my own tests on a host of fluid mixtures, verifying old test reports and found in my own case that WM50 (50:50 by mass, not volume) works the best for me. I don't disclose the WI rate exactly (something I keep for my customers) but its "high", and it needs to be to run this level of boost pressure and certified performance on the VBOX

Last year I did tests on 30+psi but was not overly happy with some parameters for long term use, last month I finally got around to re-engineering some system set up parts and now its much better as a long term proposition. All on the same 13B-REW I have been running for 3 years and its not ever been touched! (testament to reliability of water injection). This set up will easily do 2.5bar gauge boost pressure or ~36psi on normal BP Ultimate Petrol. What cant be conveyed over the internet is the speed of the way it is now on ~26psi! it flat out hauls!