968 Supercharger Kit Development
#526
Developer
Thread Starter
I have not noticed a clutch slippage problem, either.
However, in preparation for that, we do have at the ready an enhanced clutch pack should that prove to be necessary.
Here is a link: http://www.928motorsports.com/parts/968_clutch_pack.php
However, in preparation for that, we do have at the ready an enhanced clutch pack should that prove to be necessary.
Here is a link: http://www.928motorsports.com/parts/968_clutch_pack.php
#527
Burning Brakes
Your missing the obvious. Two men in the car.
Trying to measure my times off my video means that you need to compare them to YOUR times in your 968 with two men aboard. Driver and the passenger that is holding the camera. My guy is big.
Lastly, I wasnt trying to put down great 0-60 times, or i would have thrown him out, and the spare tires and tools, and warmed the tires. You can see I was fairly gentle on the clutch and had quite a bit of wheel spin in the first 10 feet.
But no matter - look at the dyno charts. The improvement is HP and Torque is real. There is no way that CANT produce shorter 0-60 times in real life.
Trying to measure my times off my video means that you need to compare them to YOUR times in your 968 with two men aboard. Driver and the passenger that is holding the camera. My guy is big.
Lastly, I wasnt trying to put down great 0-60 times, or i would have thrown him out, and the spare tires and tools, and warmed the tires. You can see I was fairly gentle on the clutch and had quite a bit of wheel spin in the first 10 feet.
But no matter - look at the dyno charts. The improvement is HP and Torque is real. There is no way that CANT produce shorter 0-60 times in real life.
What I was trying to get a sense for the acceleration numbers for the SC cars. Anyone have them? Rolling starts, 50-70, etc. whatever, ....something to compare to a stock car? I know the dyno numbers won't lie but its also nice to see how that added power helps on the road.
#528
Three Wheelin'
I don't remember seeing a second person onboard. I assumed you were using a harness bar to mount the camera or something. I also assumed you were trying to demonstrate the acceleration of the car (why else for the video?) so, though you weren't dumping the clutch, you were doing sort of a rolling street start. Still, the numbers (for what I thought was one passenger) seemed a little slow and I was surprised.
What I was trying to get a sense for the acceleration numbers for the SC cars. Anyone have them? Rolling starts, 50-70, etc. whatever, ....something to compare to a stock car? I know the dyno numbers won't lie but its also nice to see how that added power helps on the road.
What I was trying to get a sense for the acceleration numbers for the SC cars. Anyone have them? Rolling starts, 50-70, etc. whatever, ....something to compare to a stock car? I know the dyno numbers won't lie but its also nice to see how that added power helps on the road.
#529
Burning Brakes
Yes, I went back and watched the video again. I didn't have the volume on the first time so I missed the second person in the video. The extra weight would definitely add to the times. I also dont' know if this was testing the Stage I or Stage II supercharger.
I viewed some other youtube videos of 968 SC's (not sure if they are Carl's brand) and they were doing what looked like 0-60 in the low 4 second range, without dumping the clutch.
I viewed some other youtube videos of 968 SC's (not sure if they are Carl's brand) and they were doing what looked like 0-60 in the low 4 second range, without dumping the clutch.
#530
A 968 with an additional 80 or 100HP is going to make a huge difference. I think the car pulls pretty strong right now and with that extra HP that should satisfy about anyone for a fun street car. The racers might need more but I am going to go with the modest stage 1 kit.
#532
Developer
Thread Starter
Joel Frahm (Post number 525 on this thread) has the Cabrio with our Stage 2 kit on it. He has also owned some 944's and 951's. He can perhaps comment on the comparisons for you.
#534
I would like to see how a SC 968 compares to a 2.7L 951. Has anyone had both cars for comparison? My 944's have been NA's so the 968 feels real fast to me without the SC.
#537
Burning Brakes
Join Date: Jul 2005
Location: San Rafael, CA
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You seem to have some interest in 951s, try driving one.
#539
It can be quite expensive for a 951 to go to 2.7, so most 951 owners that go this route do so because the 2.5 wasn't enough. 350-400whp is not out of line on a 2.5 951 motor, we have seen ST put down 609whp on a 2.5 and chris white had some really impressive engine dyno charts from a ~650hp or so 2.5. Not to mention the 951 is lighter. I'd put my 2.5 951 up against most SCed 968s.
You seem to have some interest in 951s, try driving one.
You seem to have some interest in 951s, try driving one.
H2
#540
Developer
Thread Starter
Thank you Highlander, you are exactly right.
Our SC kit was never intended to be a *****-to-the-wall and spare-no-expense kit. It was intended to go easy on stock head gaskets and stock injectors, and provide a good HP-per-dollar ratio, with a simple installation.
It accomplishes these goals.
My son owns a 951, and with about $10k in upgraded turbo, exhaust, valves and parts, he's as fast as my supercharged 928 on half as many cylinders. But then, he has spent a lot more money. And he replaces leaking head gaskets every year it seems. These are headaches we have avoided with our 968 kit.
Our SC kit was never intended to be a *****-to-the-wall and spare-no-expense kit. It was intended to go easy on stock head gaskets and stock injectors, and provide a good HP-per-dollar ratio, with a simple installation.
It accomplishes these goals.
My son owns a 951, and with about $10k in upgraded turbo, exhaust, valves and parts, he's as fast as my supercharged 928 on half as many cylinders. But then, he has spent a lot more money. And he replaces leaking head gaskets every year it seems. These are headaches we have avoided with our 968 kit.