psiegel

No changes to any of the transmission was necessary. I have 70,000 + miles since the conversion and have no transmission issues, knock on wood. As i understand the 964 as is can handle double the HP that our cars came with. I am running abut 450hp with no issues other then trying not to get speeding tickets. I did stiffen the car as a lot of us have per suggestions from this forum, Adrian's book and others but nothing out of the norm. I also converted the suspension to the ROW M030 coils and HD dampeners but I suppose overall better handling as well as ride height options can be gained by moving to something like a pss9 or a pss10

Sharker

Just bought a 92 964 turbo with all the fixins.. The fat *** back end, IMHO, is the best looking piece of sheet metal to ever be put on a car.

Nuff Said

jody stowitts

Sharker: You just made Butzi roll over in his grave.

jody stowitts

psiegel: Do those turbos act the same as a regular engine when starting out from a stop and then go all ***-out at a certain RPM, or do they give you much more gitty-up from the get go. And, is it mandatory to have the "whale-tail" lid, i.e., for clearance of the intercooler(?). Could you turbo a car with the stock rear engine lid? I.e., a "sleeper"?

psiegel

Spin up of the turbo depends on the configuration and cost of course. A single will spin up slower then a twin of course. The cost of the twin is again obviously more expensive. I went with a single (less expensive) large turbo. I live at 9700 feet altitude so it takes longer for any turbo to spin up here then it does at sea level. At sea level i could hear and feel the turbo coming on at about 2,000 rpm. Up at 9700' you feel it at about 3,000 rpm. This is fine for me as i drive in the snow half the year and i don't want it to come on to early or else the car would be always spinning out in the snow. So at 3000 rpm its easy and very driver friendly.
The wing is required if you want at least 1 bar. If you would settle for less HP, I don't know where the cut off is but my guess is under 400hp then you can do without the intercooler and use the existing wing and drive a sheep in wolfs clothing. That was my original plan but 1/2 way through the modification, i decided to opt for more HP (why not) but more so because I think the engine will have more longevity as it runs cooler. For me the goal of the modification was increase in power and fun while maintaining longevity and if there was a design trade off, longevity won.
Hey i just re- read your question. My guess is that because the compression is lowered that 0 to 10 may be a tad slower (although i really can't notice a difference) but after 10 forget about it, everything is in your rear view mirror.

Sharker

Wow.. that was eerily prophetic

jody stowitts

No prophesy here, Sharker; I thought he'd passed away a year ago. Shows how much I know?!

Sharker

Lol.. even if you did not know, posting on the eve of his death is pretty scary..

John McM

Sounds like a touch of buyer's remorse. Very normal when you stump up a wad of cash for a 20 year old car. Get it out on those two lane roads we NZers call main highways and wait until you come up behind a slow truck or milk tanker, hold the revs at 3,000, switch the turn signal and light the fuse. You'll be past it in a blink of an eye and madly on the brakes to avoid losing your license. Repeat until satisfied.

cobalt

Lets just say it is far easier to launch a C2 from a dead stop than the turbo. The turbo is not about 0-60 it is about pure adrenaline and driving at speed. There are many faster cars than the turbo off the line and if you went head to head with a C2 with <50 feet of lane before merging to one the C2 will win unless you don't mind beating on your clutch. On the other hand a rolling 5 mph start will scare most drivers while out accelerating cars with more HP and flatter power curves. Unfortunately until the boost builds the older single turbo cars have a bit of a lag up to 20 mph and then all hell breaks loose. That is unless you dump the clutch which is not worth the expense to prove a point. The turbo will easily reach 80 mph in the time a C2 takes to reach 60 and have far more momentum increasing its pull and acceleration all through the gears. To say driving these cars is intense is an understatement.

My 3.6T with slight mods produces roughly 380 rwhp and 390 rwtq when full boost comes on it goes from producing 200 rwtq at roughly 2000 rpms to 365 rwtq by 2300 rpms and gradually builds to max tq all the way to redline pulling like a freight train. No other car I have driven comes close to the feel of these cars when the power comes on and they are not for everyone.

In terms of acceleration with some bolt on mods a 3.6T is a tad slower than a modified 993TT, 993TTS and 996TT from a dead stop (0-20 lag kills it off the line) but what it looses off the line it more than gaines from 60-130mph compared to the others. With the new PDK and higher HP TT's made today it will take a full EFI conversion to make them as fast but if your going for that kind of power modding a 3.3 is far more economical.

The 964 turbo is by far the most raw and connected of these turbo models to the road and requires more driver skill to drive at speed making for a very exhilarating and exciting experience. You should definitely test drive one before committing to buying.

As far as the rear wing if you plan on driving any of these cars fast the wing is a must even a C2 at speed could use the help of a rear wing and front splitter when you approach speeds above 130mph.

jody stowitts

So Cobalt, what is a "ballpark" $$ to single turbo a 964. I've got a age related aversion to the wings. So, Knowing I'd never approach the 130mph arena, is it possible to rig up a wingless "sleeper"?

cobalt

Figure a nice protomotive turbo setup without I/C is going to run you $5-6K. Depending on how far you want to take it. A friend of mine has a carrera speedster he turbocharged without rear wing, he was featured in Excellence Magazine last month. Fun car and looks cool. Great ride for the occasional blast into hyperspace but not a high speed driver. If that is what you are looking for they are somewhat reasonable and offer a low boost less violent approach to speeding up a 3.6