I'm thrilled to find such an active group discussing 996 turbos. It's going to be a great place to learn.

I've been a turbo design engineer for 38 years but never owned a turbocharged car until 6 years ago. Back in the 80's, before good wastegate controls and VGT's most OEM applications were pretty lame. The motorcycles were downright pathetic!

I'm going to be retiring soon and plan to treat myself to a 996tt. As an engineer I appreciate the design excellence in these cars. I've owned three Jags and three Ferraris, but somehow never bought a Porsche. Time to fix that.

I'm sure I'll have lots os questions as I get closer to going shopping. Thanks in advance for your help and advice.

krswen

 

what applications were you designing turbos for?

and what company?

the 996tt should please you well comparing to jags n f cars

 

Welcome to the site and 996tt world, sounds like you will shed more light on the fast changing world of turbo's for these cars, it seems like 1 - 2 years something new, better and quicker is hitting the market. Consider buying a modified car if you haven't bought one yet, there are several on the board here for sale, seems like the cheapest way to buy upgrades? GL

 

Wellcome krswen,you will find out how excellent are this 996tt,they amazing cars,no way you'll regret when having one.

 

Hi all ....

I worked for Garrett (now Honeywell) and over the years worked both automotive and heavy truck. I also did a spell as a compressor aerodynamicist.

I was also the competitor evaluation guy, so tore apart KKK, IHI, Switzer etc. We even looked at making a supercharger (to compete with Eaton), but never did.

krswen

 

awesome love to pick your brain someday. how do you think the garret gt seris turbos compare to the competition? havent seen much done with ihi or anyone other then the custom units and the garretts

 

When I left (a while ago) we felt we had the best compressors, but KKK had pretty good turbines. Since then I think the major players (Honeywell and 3K Warner) have probably converged to very similar overall efficiency levels. Frankly, the difference between 74% and 75% compressor efficiency, at the relatively low boost pressures that gasoline engines run, is insignificant .... especially with heavy charge cooling.

I tell my students that diesel engines and turbocharging are a match made in heaven. With spark ignition gasoline it's an uneasy truce ... always on the verge of destructive detonation.

I think the most successful OEM applications are those where the turbo and engine makers have the time and resources to do comprehensive "component matching" and thorough mapping. Modern control systems are a wonderful thing (when they work right).

 

Your assignment is to tell us which Turbo can effectively fill a 3.6 liter engine with compressed air without exploding. We patiently wait for your response.

 

LOL Paulie...welcome to the board krswen.