S50/S52 guys! RMS Superchargers

[dinanm3atl]

I have a super slow TURD 328iC w/ a hardtop...

What kind of power can I expect? 1996 model year. Like get close or pass E36 M3 power/speed/accel?

[THATDONFC]

What does the stage 3 consist of?

The stage 3 adds a water injection system, our 8 rib pulleys with our dual ball bearing idler pulley made from billet aluminum, Larger injectors and a Porsche meter.

I have a super slow TURD 328iC w/ a hardtop...

What kind of power can I expect? 1996 model year. Like get close or pass E36 M3 power/speed/accel?

Stg 1 would be around 330 at the crank.
Stg 2 would be around 390 at the crank.
Wheel hp is 20% less.

[rneedham1979]

What size injectors and what size blower pulley?

[daniel]

maybe a stupid question, but, how badly does fuel economy suffer during normal driving with a S/C? i am getting about 23MPG with my S52 with mixed city and highway driving. am i looking at getting like 20MPG, or 15?

[THATDONFC]

What size injectors and what size blower pulley?

For which kit?

maybe a stupid question, but, how badly does fuel economy suffer during normal driving with a S/C? i am getting about 23MPG with my S52 with mixed city and highway driving. am i looking at getting like 20MPG, or 15?

Well during normal everyday driving and cruising around you will actually see about 2 more mpg than what you're getting now. Especially on the highway. With spirited driving you will probably see between 18 and 19 mpg. With more boost comes more fuel, so if you run a Stg 3 it will be less than that.

[rneedham1979]

the stage 3

[THATDONFC]

the stage 3

Sorry, I should've seen that. lol

We use 45 lb injectors. It comes with an 8 rib 3.115 inch supercharger pulley and an 8 rib 6 inch crank pulley.

[rneedham1979]

Thanks!

[THATDONFC]

Thanks!

You're very welcome.

Osh and I are in the process of putting together a stg 4 setup.

We are also putting together stg 1 and 2 low compression motor setups. pistons, rings, rods, bearings, seals. the works.

A fully built LC motor is a great compliment to a stg 4 blower!

[daniel]

Well during normal everyday driving and cruising around you will actually see about 2 more mpg than what you're getting now. Especially on the highway. With spirited driving you will probably see between 18 and 19 mpg. With more boost comes more fuel, so if you run a Stg 3 it will be less than that.

thanks for the info.

it will be a while before i can really consider an SC anyway, but thats ok since this stage 4 system is being developed :twisted:

[M-technik-3]

Longevity? Or should I say time between rebuilds of the SC unit. Are they DIY rebuild or do they need to be factory rebuilt ie kits are not available to general public?

[Chuzo]

can the s/c work well if my engine has schrick N/A cams?

[Wh33lhop]

For which kit?



Well during normal everyday driving and cruising around you will actually see about 2 more mpg than what you're getting now. Especially on the highway. With spirited driving you will probably see between 18 and 19 mpg. With more boost comes more fuel, so if you run a Stg 3 it will be less than that.

Not sure how a supercharger can increase your gas mileage; can you elaborate? Driving a compressor off the flywheel and adding bigger injectors only spells shitty gas mileage to me. Unless the tune is godlike I couldn't really fathom an increase in mileage.

[rneedham1979]

Most forced induction can increase gas mileage if driven responsibly.

[THATDONFC]

Longevity? Or should I say time between rebuilds of the SC unit. Are they DIY rebuild or do they need to be factory rebuilt ie kits are not available to general public?

The blower will need to be sent in to Vortech if it needs to be rebuilt. But the good thing is, these blower last for over 100k miles.

Not sure how a supercharger can increase your gas mileage; can you elaborate? Driving a compressor off the flywheel and adding bigger injectors only spells shitty gas mileage to me. Unless the tune is godlike I couldn't really fathom an increase in mileage.

Well the blower is forcing air into the motor at all times. So if you are driving like a normal person on the highway or cruising it will yield better gas mileage. If you do a lot of spirited driving then your gas mileage will be worse. It'll only get you 1 or 2 more mpg. nothing more.