SDS vs EEC Dynotest

Our tester was Wayne's Capri, a street driven drag car with a 351W and Procharger making a mild 7lbs of boost. In EEC form a A9L computer was used with a Motorsport Rev Extender that allowed us to raise the rev limit and adjust the air / fuel ratio. A Pro-M 77 meter was used calibrated to the 30lb injectors and the Procharger FMU was retained.

For the SDS test we replaced the injectors with larger 42lb and removed the FMU as the SDS can more accurately control fuel enrichment under boost.

Testing was done on a Dynojet Chassis Dyno, all figures are at the rear wheels, corrected for altitude and temperature.

RPM	Torque	Torque	Gain	Horsepower	Horespower	Gain
	EEC	SDS		EEC	SDS
3600	343.4	361.7	+18.3	235.4	248.0	+12.6
3700	360.9	384.0	+23.1	254.2	270.6	+16.4
3800	378.6	408.7	+30.1	274.0	295.7	+21.7
3900	417.6	421.4	+3.8	310.1	312.9	+2.8
4000	422.8	434.6	+11.8	322.0	331.0	+9.0
4100	435.0	445.4	+10.4	339.6	347.7	+8.1
4200	435.6	451.6	+16.0	348.3	361.1	+12.8
4300	438.2	455.5	+17.3	358.7	372.9	+14.2
4400	441.8	460.4	+18.6	370.1	385.7	+15.6
4500	444.4	464.8	+20.4	380.8	398.2	+17.4
4600	445.7	469.0	+23.3	390.3	410.7	+20.4
4700	448.5	474.6	+26.1	401.4	424.7	+23.3
4800	449.5	478.8	+29.3	410.9	437.6	+26.7
4900	451.5	481.0	+29.5	421.2	448.7	+27.5
5000	455.4	485.9	+30.5	433.6	462.6	+29.0
5100	457.9	486.4	+28.5	444.7	472.3	+27.6
5200	457.6	488.9	+31.3	453.1	484.0	+30.9
5300	459.9	491.0	+31.1	464.1	495.4	+31.3
5400	459.7	488.4	+28.7	472.7	502.1	+29.4
5500	458.2	490.0	+31.8	479.8	513.2	+33.4
5600	457.9	486.4	+28.5	488.2	518.6	+30.4
5700	454.1	483.8	+29.7	492.8	525.0	+32.2
5800	449.6	478.9	+29.3	496.5	528.8	+32.3
5900	444.2	473.7	+29.5	498.9	532.1	+33.2
6000	437.1	467.3	+30.2	499.4	533.9	+34.5
6100	429.0	462.2	+33.2	498.3	536.9	+38.6
6200	419.0	456.4	+37.4	494.6	538.8	+44.2
6300	409.4	448.5	+39.1	491.0	538.0	+47.0
6400	397.7	443.6	+45.9	484.6	540.5	+55.9
6500	387.5	439.4	+51.9	479.5	543.8	+64.3
6600	373.2	432.5	+59.3	469.0	543.5	+74.5
6700	NA	425.4		NA	542.6

The results are clear, the SDS made more horsepower and torque across the rpm range with big gains in the upper rpm's where the MAF meter becomes a restriction. Street driveablity is much better with the WMS / SDS Programmable Injection installed.

Some track testing was done after installation of the SDS although a full pass could not be made as Wayne doesn't have the necessary safety equipment. The track officials allowed one top end pass after rolling out 100 feet, the result was 126 mph. They then let him try an 1/8th mile pass and he ripped on an impressive 7.0 at 99.8 mph, should be good for low 10's in Calgary - remember we're at 3800 ft.