Supercharger for 2.5

[PorscheDoc]

Ok, good news fellas. I replaced the oil in the supercharger today in less than a half hour. It took a little more time than it should have as i searched for the right tool, but ends up being a fairly easy change, with the blower left in place. Pull the drain plug, drain, replace, pull the fill plug, make a custom fill hose, lol, and one bottle later, the oil is changed. I was afraid you would not be able to get the fill hole open without dropping the blower, but with a 3/16" stubby allen socket and a flex head rachet, it comes right off. Very good news indeed. Filling it is a little tricky, i used the old transmission fill tactics. Take a bottle of oil, attach a long hose to it. Put the other end in the fill hole. Turn bottle upside down, poke small hole in bottom of bottle. Take compressed air and apply it gently to the hole, and the fluid shoots out of the bottle, through the hose, and into the blower We will still have the optional fill hose available which you can access from the engine compartment, but good to know it isn't absolutely necessary.

Now on to the 3.2L intake pipe.......

[PorscheDoc]

After a year and a half of reseach, development, and testing, the 2.5L kit is live! The parts for the first run of 10 kits are on the way to us now. We will sort the parts, package, and get them ready to ship ASAP. We will be taking orders starting this week. I would expect the first run will go pretty quick. I will work up an official release sometime today, in between a few other things here at the shop.

[socratic]

That's very good news. Thanks for the update Doc.

Let us know about the dyno results on the 3.2 and the 2.7

[socratic]

Originally Posted by PorscheDoc

After a year and a half of reseach, development, and testing, the 2.5L kit is live! The parts for the first run of 10 kits are on the way to us now. We will sort the parts, package, and get them ready to ship ASAP. We will be taking orders starting this week. I would expect the first run will go pretty quick. I will work up an official release sometime today, in between a few other things here at the shop.

Another question Doc, is your kit designed to be easily installed? I won't be doing it of course (even though I'd love to; it's more of a lack-of-time thing). But I wonder if I need to take it to the Porsche dealer (or someone intimately knowledgeable about Boxsters) or if a good mechanic with decent tools can do it.

For example, will the engine have to be dropped down?

I've been reading up on superchargers and a 5 psi boost should mean that 35% more fuel is needed. On some cars, the fuel delivery mechanism needs to be improved. Is this the case with our Boxsters?

I've asked about the infamous supercharger whine before. Is there room in the Boxster for additional sound insulation like Dynamat?

[PorscheDoc]

Originally Posted by socratic

Another question Doc, is your kit designed to be easily installed? I won't be doing it of course (even though I'd love to; it's more of a lack-of-time thing). But I wonder if I need to take it to the Porsche dealer (or someone intimately knowledgeable about Boxsters) or if a good mechanic with decent tools can do it.

For example, will the engine have to be dropped down?

I've been reading up on superchargers and a 5 psi boost should mean that 35% more fuel is needed. On some cars, the fuel delivery mechanism needs to be improved. Is this the case with our Boxsters?

I've asked about the infamous supercharger whine before. Is there room in the Boxster for additional sound insulation like Dynamat?

The install will take roughly 12-15 hours depending on the mechanic. If they have an idea of how superchargers work, or are at all familiar with regular work on the boxster, then the instructions will literally walk them through the install. There are some tight clearences for getting some of the hoses on, but nothing too terrible. This is all done with the engine in place.

For the 2.5L kit, the stock injectors are big enough to provide the extra fuel rate as determined by the program. On the 2.7 and 3.2 we will be using larger injectors.

After driving one of the cars for a few days, I don't think the supercharger whine is much louder than the engine normally is. A different sound yes, but definetly not obnoxious.

[rufio]

Hi PorscheDoc


I am quite excited about your supercharger for the 2.5 but one question that remains is in regard to the the low RPM boost when driving around cities.

Since your supercharger is one of the centrifugal types, it may not develop appreciable boost at low RPM (Boost Threshold), but still uses up prodigious amounts of engine power to operate thus possibly eating up more fuel even when just doing the daily shopping.

Do you have any data in regard to this?

Thanks

[rufio]

Oh btw, great song on your flash intro website ! do you have the name of that song. I would love to put that track on whilst driving. thanks

[PorscheDoc]

Originally Posted by rufio

Oh btw, great song on your flash intro website ! do you have the name of that song. I would love to put that track on whilst driving. thanks

"How Soon Is Now" by Tatu, (originally by The Smith's.)

[porschephd]

If I may....The way the blower works you are correct it makes its peak boost up top. However based on the design of the C1 and the efficiency it creates positive pressure down low. Not a ton, but with some timing and fuel the change is enough to bring the lower end up over the OEM spec car.

I will need to pull the dyno sheets as I don't recall the exact amount it was. Bottom line is with proper programming and the positive pressure the unit has a gain across the board.

Stephen

Originally Posted by rufio

Hi PorscheDoc


I am quite excited about your supercharger for the 2.5 but one question that remains is in regard to the the low RPM boost when driving around cities.

Since your supercharger is one of the centrifugal types, it may not develop appreciable boost at low RPM (Boost Threshold), but still uses up prodigious amounts of engine power to operate thus possibly eating up more fuel even when just doing the daily shopping.

Do you have any data in regard to this?

Thanks

[ephidaboost]

What would you estimate the 0-60 is on a stock 2.5 fitted with your supercharger?