My RX7SP build up

RICE RACING · 02-13-2010, 07:37 PM

I have a ram air sealed air box for my turbo inlet, there is a carbon duct going down into the nose cone main entry that feeds the air box, I should fit up a pressure sensor there and do some high speed tests.

Well Finally ! Tested & Finished

*taken from another forum I posted up details, for reference this is a list of other cars at bottom of this page that I test to give relative performance in mild state of tune. Could will go even faster on same boost as at end of third gear it (last 5kph) got into higher EGT and the ECU increased the fueling (making engine too rich 10.6:1) to cool the EGT down (cost ~20rwkw in upper revs power), I have since redone the table to allow a higher EGT setting before automatic fuel enrichment will occur.

http://www.riceracing.com.au/vbox-ii...ing-tuning.htm

Logged the SP this morning and did some back pressure testing for SMB on the mid section street exhaust.

3rd gear 90-140 time of 3.11 seconds on 14.1psi boost pressure RR Water Injected,
Turbine speed 91068rpm
132kph = 0.443G < (10% more acceleration at same speed as ONE58 when I logged it at 12.2sec @ 118mph on street on 1.1bar boost on twins FMIC etc, driver only in car)
Turbine inlet pressure 12.0psi
Exhaust back pressure 2.63psi
6681rpm
11.36AFR
EGT 985deg C
Fuel pressure 64.98psi
Full boost = 3700rpm
Ambient temp 10.6deg C
Inlet manifold air temp on fast acting sensor = 32 deg C
need to do up the graphs, exhaust back pressure at 240rwkw on VBOX was 3.0psi @ 7500rpm (which I would class as quite good for 2 mufflers and a catalytic converter & plumb back waste gate set up).

02-13-2010, 07:37 PM	#3
RICE RACING Don Mega Join Date: Dec 2008 Location: Utopia Posts: 1,688 Rep Power: 18	I have a ram air sealed air box for my turbo inlet, there is a carbon duct going down into the nose cone main entry that feeds the air box, I should fit up a pressure sensor there and do some high speed tests. Well Finally ! Tested & Finished taken from another forum I posted up details, for reference this is a list of other cars at bottom of this page that I test to give relative performance in mild state of tune. Could will go even faster on same boost as at end of third gear it (last 5kph) got into higher EGT and the ECU increased the fueling (making engine too rich 10.6:1) to cool the EGT down (cost ~20rwkw in upper revs power), I have since redone the table to allow a higher EGT setting before automatic fuel enrichment will occur. http://www.riceracing.com.au/vbox-ii...ing-tuning.htm Logged the SP this morning and did some back pressure testing for SMB on the mid section street exhaust. 3rd gear 90-140 time of 3.11 seconds* on 14.1psi boost pressure RR Water Injected, Turbine speed 91068rpm 132kph = 0.443G < (10% more acceleration at same speed as ONE58 when I logged it at 12.2sec @ 118mph on street on 1.1bar boost on twins FMIC etc, driver only in car) Turbine inlet pressure 12.0psi Exhaust back pressure 2.63psi 6681rpm 11.36AFR EGT 985deg C Fuel pressure 64.98psi Full boost = 3700rpm Ambient temp 10.6deg C Inlet manifold air temp on fast acting sensor = 32 deg C need to do up the graphs, exhaust back pressure at 240rwkw on VBOX was 3.0psi @ 7500rpm (which I would class as quite good for 2 mufflers and a catalytic converter & plumb back waste gate set up).