Supercharger for 2.5 - 986 Forum - The Community for Porsche Boxster & Cayman Owners

nautiquelfe · 01-09-2006, 10:56 AM

There is one audi performance shop here that is top notch, I would think w/ some guidance they could perform the work. I would hate to be the guinee pig for them though. Of course a nice long road trip would be exciting. Would the newly installed supercharger be able to handle a 1000+ mile trip so soon after being put on? Two more questions: Is the entire ecu pulled and replaced or do u flash the upgraded fuel/air delivery ratio through a cpu linked to ecu? Does this whole procedure require any replacement sparkplugs, O2 sensors, header/exhaust piping, or air intake changes, and would need to be done at the same time or before hand? I'll most likely direct my future questions to your place of business.

PorscheDoc · 01-09-2006, 04:00 PM

On our first prototype car, the customer came to pick up the car ahead of schedule. The pipes we had made him were the only set we had, so with him waiting in the waiting room, we had to pull everything off the car, copy the pipes as best as we could (so we could send them out to be plasticmolded), and put the car back together. We put it back together quickly, which was a pretty fast dry run, at 5:30, i pulled it out of the shop, he hopped in it, and drove NONSTOP from Kansas City to Arizona. So yes...it will make the trip. This isn't something we like to do though, I like to have an extra day to make sure everything checks out etc to ensure no issues, but so far there hasn't been one in all the times we have pulled the kit off and put it back on with the 2 cars that have been prototypes.

The air intake is an evo cold air intake, which is connected to the custom intake pipes for the supercharger, etc. The headers and cats and o2's stay the same on the 2.5L. The spark plugs stay the same as well. When done inhouse, we will flash the ECU through the OBDII port and takes about 20 minutes. Out of house, would require the installer to pull the ecu (takes but a few minutes) and send it to us to flash. Turn around is a day or 2, so if it is pulled at the beginning of the install and sent out, it will be back quickly. With that being said, if there is a good audi shop, they should be able to handle the install without a problem. I personally am not a big fan of working on audi's, so if you can work on them, you can definetly do this job

socratic · 01-19-2006, 10:04 PM

Quite interested in a future supercharger for my 2001 2.7L

Questions:

1) Not serious: can it be driven by a pulley on an electric clutch so that I can switch it on/off at will? Guess what movie is inspiring this question?

2) More seriously: Will there be a noticeable supercharger whine? I love the sound of the Boxster now and would NOT like there to be a noticeable whine.

3) Is there any appreciable change in the exhaust note with the supercharger? Again I love the sound now and wouldn't want it to change much (a teeny bit lower and a teeny bit louder would be fine--the emphasis on TEENY).

PorscheDoc · 01-20-2006, 04:02 AM

Quote:

Originally Posted by socratic

Quite interested in a future supercharger for my 2001 2.7L

Questions:

1) Not serious: can it be driven by a pulley on an electric clutch so that I can switch it on/off at will? Guess what movie is inspiring this question?

2) More seriously: Will there be a noticeable supercharger whine? I love the sound of the Boxster now and would NOT like there to be a noticeable whine.

3) Is there any appreciable change in the exhaust note with the supercharger? Again I love the sound now and wouldn't want it to change much (a teeny bit lower and a teeny bit louder would be fine--the emphasis on TEENY).

1) I'll go with No (And i am horrible at movie trivia, lol )
2) There is a supercharger whine, it is not overly loud like some blowers.
3) Doesn't change the exhaust note enough to notice. The are more likely to hear the air going into the cold air intake more than the exhaust.

RandallNeighbour · 01-20-2006, 06:43 AM

Supercharger, $7000. Added whine and noise, no charge. A reported 100 additional horses, priceless!

socratic · 01-20-2006, 08:24 AM

Quote:

Originally Posted by PorscheDoc

1) I'll go with No (And i am horrible at movie trivia, lol )
2) There is a supercharger whine, it is not overly loud like some blowers.
3) Doesn't change the exhaust note enough to notice. The are more likely to hear the air going into the cold air intake more than the exhaust.

Is the whine comparable to that of a Volkswagen Corrado? Let me know if you can think of a car with a similar whine. I'd like to find one locally and listen to it.

A friend of mine once had a stock Toyota MR2 with its factory supercharger and I didn't think there was much whine. Then again, I've seen people drive around with the whiney roots-type superchargers in their muscle cars (too whiney).

What this the timeframe for your supercharger kit for the 2.7L?

PorscheDoc · 01-20-2006, 09:35 AM

Quote:

Originally Posted by socratic

Is the whine comparable to that of a Volkswagen Corrado? Let me know if you can think of a car with a similar whine. I'd like to find one locally and listen to it.

A friend of mine once had a stock Toyota MR2 with its factory supercharger and I didn't think there was much whine. Then again, I've seen people drive around with the whiney roots-type superchargers in their muscle cars (too whiney).

What this the timeframe for your supercharger kit for the 2.7L?

I would say that it is not nearly as loud as a roots based supercharger that you would find on a muscle car, but not as quiet as a factory integrated supercharger.

We are currently working on getting the 3.2L done, then we will move to the 2.7 once we get a prototype car to work on. We are so backed up at the moment, i would maybe sometime during the summer....

Perfectlap · 01-20-2006, 11:26 AM

944 Turbo eh? nice please post pics some time. I always wanted one of those in white when I was a kid back in the early 80's. I thought it was much more 'modern' looking than the beetle-esque 911. But Tony Montana's 928 in Scarface was the coolest 80's car. I didn't like the color of Tom Cruise's Porsche in Risky Business, looked like a color your fahter would pick.

threpwood · 01-21-2006, 02:18 AM

Quote:

Originally Posted by PorscheDoc

We are currently working on getting the 3.2L done, then we will move to the 2.7 once we get a prototype car to work on. We are so backed up at the moment, i would maybe sometime during the summer....

Looking forward to the 3.2L. I also asked TPC but I don't believe they have anything done yet, not even the turbo as they suggested. I guess patience is a virtue

I don't mind the whining noise really as long as it doesn't disintegrate the engine (fast) and of course, with additional 50-100 horses

socratic · 01-23-2006, 11:46 PM

Quote:

Originally Posted by PorscheDoc

I would say that it is not nearly as loud as a roots based supercharger that you would find on a muscle car, but not as quiet as a factory integrated supercharger.

We are currently working on getting the 3.2L done, then we will move to the 2.7 once we get a prototype car to work on. We are so backed up at the moment, i would maybe sometime during the summer....

I'm curious about why it won't be as quiet as a factory integrated supercharger. The one on a Corrado looks bolted on with no special sound insulation around it.

Is the supercharger you plan to use not a normal one? That is, shouldn't it be similar to the Corrado?

I'm asking because it's wishful thinking--that is, I'm REALLY WISHING you'd say it's quiet so I have no excuse not to get one.

Too bad you're so busy. My Boxster has been sitting for 2 months now due to winter. You could have had it for that long and more. :-)

denverpete · 01-28-2006, 04:36 PM

Quote:

Originally Posted by socratic

Quite interested in a future supercharger for my 2001 2.7L

Questions:

1) Not serious: can it be driven by a pulley on an electric clutch so that I can switch it on/off at will? Guess what movie is inspiring this question?

"Two days ago I saw a vehicle that would haul that tanker. You want to get out of here? You talk to me!"

PorscheDoc · 01-29-2006, 06:41 AM

Quote:

Originally Posted by denverpete

"Two days ago I saw a vehicle that would haul that tanker. You want to get out of here? You talk to me!"

I recognize that from Mad max.

socratic · 01-31-2006, 01:42 AM

Quote:

Originally Posted by denverpete

"Two days ago I saw a vehicle that would haul that tanker. You want to get out of here? You talk to me!"

Denverpete's got it! The Road Warrior. A true classic.

http://www.amazon.com/gp/product/0790729342/103-3251884-4250232?v=glance&n=130

socratic · 02-10-2006, 07:11 AM

PorscheDoc,

How is the progress on your 3.2? Is the 3.2 similar enough to the 2.7 that there won't be much Development to get it to work as well?

I see on your website that the 2.7 could be available as soon a late April; is this still on track?

Any pricing on the 2.7?

By the way, it turns out that the Toyota MR2 Supercharger is actually on an electric clutch. I believe it's engine-managed so there isn't a button you can push to turn it on/off yourself, though if I had an MR2, a button on the dash (or, like in Mad Max II: Road Warrior, a button on the stick shift) would be the FIRST mod that I would make. Maybe that could be a later "option" you can offer. :-)

Just curious, would another option for a supercharger be using an OEM unit like the one found on those Mercedes "Kompressor" cars? I'm thinking that a unit like that would be made in the thousands and for many years would be available as a spare part. In the case of the Mercedes unit, presumably it has gone through tons of testing, enough for them to put their name on it.

PorscheDoc · 02-21-2006, 03:23 PM

Wow, talk about being spread thin, haven't gotten on the board in awhile.

The 2.5L kit will be released next wednesday IIRC, we are waiting on shipments to come in currently, so finally are rolling on that. We did the final tune on the 2.5L about 3 weeks ago, so everything is a go. The 3.2 is on the lift and we have fabbed up the headers, and are waiting for our supplier to copy them. I played around a little bit on Josh's 3.2L today with the blower oil change, and it looks like you can do it with the blower in place. The top fill port is tight to get to, but I have modified an allen wrench to work. Tomorrow, I will make a custom fill tube, which will be accessable from the engine compartment for those who don't want to do it the other way. Draining the blower is not an issue. Either way, the oil change on the blower shouldn't be an issue. I will be changing the oil on a 2.5L blower tomorrow, so i will find out exactly how it is going to go. I will report the news tomorrow.

We are expecting the 2.7 to be virtually identical to the 3.2L, so that should be an easy in and out to check that. We know the exhaust is going to be the same, which is our biggest issue with the 3.2L right now. After the 3.2L goes live, we will need a couple weeks to get a 2.7 in the shop and go through an install and make sure everything is the same. There *should* be no additional fabrication required. If this is the case, the cost will be identical to the 3.2L.