Supercharger on a 280Z

[dogma420]

Good news! the current sport Z magazine has an article you'd probably want to see....

A staff member is installing a supercharger on a 280z L28...

http://www.sportzmagazine.com/Z_Preview.htm page 50..

[Murph]

Good stuff! Will definitely be getting my hands on a copy of that.

Many thanks!

[dogma420]

My pleasure! Probably the most informative post I've ever done!

[kjones]

Hey guys...

That's my Supercharged 280z...

Just to clarify, no wastegate or BOV is needed and it's a very simplistic setup.

The supercharger has a vacuum actuated bypass valve which takes care of all the off throttle cruising concerns that you raised.

It is very drivable and pretty fuel efficient too! 22 mpg is the best I've got so far, but of coarse I can never get through a tank of gas without being tempted to mash the pedal several times

Regards

Ken

[Ricklandia]

Could we possibly convince you to post a few pictures, and maybe even do a little write up for those of us here that do not get SportZMagazine? Would love to see and read a little about it.

[kjones]

If you're in Florida we'll have it on the Sebring Long Coarse this saturday (5/14)!

Most of the people in our club are going to attend... 3 members have signed up to drive the rest are coming for the barbeque and ride along program.

You can take all the pics you want! More pics are available under our members rides section at our club website which is http://flzclub.com Come on out to Sebring on Saturday!!!!

We're having a barbeque, setting up some canopys, and Chin Motorsports will provide ride alongs in the car of your choice for $20 ... basically for 20 bucks you could sit in the passenger seat of some very fast cars with competent drivers all day long! You might even get to ride along in the supercharged Z if time permits!

Info can be found at http://flzclub.com/forum/showthread.php?p=245#post245

Regards

Ken

[kjones]

A couple of old pics (with my old temporary wheels) and before the wiring was cleaned up are available at http://www.flzclub.com/forum/showthread.php?t=42

Ken

[chickenwafer]

thanks Ken, interesting Zed. I like!

I will be rebuilding my 260 sometime soon after I win the lottery and I am juggling wheather to do an NA or turbo engine. Now I have a supercharged L-series to think about! Reading about the current supercharger setups I am very intrgrigued and am now seriously considering it. Thanks for all the great info!

Dave

[kjones]

When you figure out the whole lottery thing, please post your results/findings :cross-eye

Glad ya like the BlownZ it's a total rip to drive... Can't wait to get it out on the track... My intention was to road race with it, so I believe it's ready to go!

Ken

[Murph]

Very nice Ken!

Out of interest, what's the supercharger you used (with an internal bypass valve)?

My copy of that edition of sportz mag should be somewhere between the US and here.....I don't want to wait till I get it to find out though!

[kjones]

Hi,

The supercharger is the latest design from Magnuson... the model is the MP62

Here's some information about how the bypass valve works:

http://www.magnusonproducts.com/bypass.htm

The MP62 is also used in the Stillen kit for the 350Z

I'm spinning the blower to close to it's limit just to test the boundaries and it's doing just fine... It is currently making 13.5 pounds of boost on my 3.0 liter stroker with no intercooler! To get any more boost I'd have to move up to the next size which is the M90.

More info can be found at http://www.magnusonproducts.com/mp62.htm

I'm going to experiment with water injection on my existing manifold which should allow me to increase the timing under boost.

The next step will be to redesign the manifold to allow it to fit under a stock hood and provide some other intercooling options (sorry can't say any more until after June when the next edition of the magazine is delivered).

Regards

Ken

[Murph]

Thanks for the info Ken.

That built in bypass effectively works in exactly the same way as the method using the wastegate that I had mentioned. It would be pretty handy to have it built into the supercharger though. Two positives of the wastegate idea are firstly that by using and adjustable wastegate you could change the rate at which the bypass will open/close with pedal position to suit your driving style/cars use. Secondly you can dump the air from the bypass to atmosphere and avoid recirculating it. Not sure that by recirculating the air it'd really heat up enough to have to worry about it. Both small issues really......the better packaging of the internal bypass would be more important to most.

It'd think water injection should see some pretty decent benefits in your setup. I'll be following progress on your car with great interest as realistically, I wont be getting started on my planned setup for about a year or so.

With regards to redesigning the manifold to fit under a stock bonnet and to allow intercooling options, why not mount the SC on the other side of the engine? With a remote mounted oil filter kit (cheap) there's plenty of room over there, still allowing access to the spark plugs. It'll also greatly simplify inlet piping to and from the intercooler. While on the topic of intercoolers, what's your plan there? Air-air or water-air? I'm thinking water to air using one of the PWR barrel coolers... Keeps the packaging of the whole setup quite simple.

http://www.absoluteradiator.com/images/Liquid-to-airKit.jpg

Justin

P.S. Any thoughts, agree/disagree with any of that, just say. I'm still learning with the whole SC thing.