What different in camshaft for 968 & 944 S2
04-03-2011, 02:32 AM
#16
Rennlist Member
I am sure it's not too hard to find out. Perhaps try on the 968 forums?
04-03-2011, 06:52 AM
#17
Track Day
Thread Starter
Join Date: Mar 2011
Location: Russia, Rostov-on-Don.
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
Unfortunately Webcam with no connection to the e-mail, by phone only. And, as I said, my English - not very good. otherwise, I will already be known.
04-03-2011, 01:58 PM
#18
The fact that I found on the 944 - for 830 euros a pair, and at 968 only cost 1500 euros a pair of ... I measure my size and ask the seller to measure
What comes to interchangeability, S2 cams will not work on 968 engines.
04-03-2011, 02:24 PM
#19
Race Car
968 Basic Timing
Intake opens 7.5deg before TDC
Intake closes 52 deg after BDC
Exhaust opens 31 deg before BDC
Exhaust closes 1 deg before TDC
968 Torque timing (with Variocam activated)
Intake opens 7.5deg before TDC
Intake closes 37 deg after BDC
Exhaust opens 31 deg before BDC
Exhaust closes 1 deg before TDC
You can see that the 968 are geared to top end power without Variocam. The Variocam increased the midrange torque by reducing the intake duration. A 968 cam in an S2 would perhaps increase the top end but leave a huge hole in the midrange torque.
Intake opens 7.5deg before TDC
Intake closes 52 deg after BDC
Exhaust opens 31 deg before BDC
Exhaust closes 1 deg before TDC
968 Torque timing (with Variocam activated)
Intake opens 7.5deg before TDC
Intake closes 37 deg after BDC
Exhaust opens 31 deg before BDC
Exhaust closes 1 deg before TDC
You can see that the 968 are geared to top end power without Variocam. The Variocam increased the midrange torque by reducing the intake duration. A 968 cam in an S2 would perhaps increase the top end but leave a huge hole in the midrange torque.
04-03-2011, 05:23 PM
#20
Track Day
Thread Starter
Join Date: Mar 2011
Location: Russia, Rostov-on-Don.
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
I understand that if there is a difference in the cams, then put them should not. and then I'll order for 968.
04-03-2011, 05:29 PM
#21
Track Day
Thread Starter
Join Date: Mar 2011
Location: Russia, Rostov-on-Don.
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
Maybe you've got something labeled wrong? Ceteris paribus, later IVC corresponds to a shift to the right in the torque curve, meaning that the events labeled as S2 should tradeoff mid range for upper end torque, relative to the 968 events. The increase in duration should do the same thing. I assume those events are full retard?
04-03-2011, 05:46 PM
#22
Track Day
Thread Starter
Join Date: Mar 2011
Location: Russia, Rostov-on-Don.
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
If you are talking about the new cams, i find it out odd if you are able to buy S2 cams for that price. For example PET lists german Porshce center's price 680€ piece for both S2 & 968 cams. Some dealers like FVD have both S2 & 968 cams available for 575€ + tax.
What comes to interchangeability, S2 cams will not work on 968 engines.
What comes to interchangeability, S2 cams will not work on 968 engines.
In Russia the price of camshafts - about 800 euros for one. the same for 968 and 944. In Russia Porsche 968 Convertible - only one-my. there are a few 968 coupes. 5 can be a maximum of 10.
04-03-2011, 06:04 PM
#23
Yes i know Marek's shop. Russia's 968 figures are about the same we had here 10-15 years ago. Not many of them now, even lots of them have been imported lately. I have at the moment three customer cars waiting for some service/repair; a tiptronic cab which suffered Tiptronic damper failure and had also a bad cat.Cab is more or less ready. Two coupes will have their belts & water pumps changed.
04-03-2011, 06:15 PM
#24
Track Day
Thread Starter
Join Date: Mar 2011
Location: Russia, Rostov-on-Don.
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
Yes i know Marek's shop. Russia's 968 figures are about the same we had here 10-15 years ago. Not many of them now, even lots of them have been imported lately. I have at the moment three customer cars waiting for some service/repair; a tiptronic cab which suffered Tiptronic damper failure and had also a bad cat.Cab is more or less ready. Two coupes will have their belts & water pumps changed.
Last edited by Roman 968; 04-18-2011 at 06:51 PM.
04-08-2011, 07:28 PM
#26
Track Day
Thread Starter
Join Date: Mar 2011
Location: Russia, Rostov-on-Don.
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
Some foto camshaft 968.... The first 4 photos of exhaust camshaft, the other 5 - inlet. measured the cams, asked Marek also measured on the shaft which he lay. the exhaust all the same, even labeling, tomorrow will measure exhaust ...
04-08-2011, 10:18 PM
#27
Race Car
Please don't make any kind of decision based on peak lift numbers taken from calipers. You really need a whole lot more information. There could easily be 60 degrees difference in duration, and you'd never pick it up just measuring peak lift.
04-09-2011, 07:17 PM
#28
Track Day
Thread Starter
Join Date: Mar 2011
Location: Russia, Rostov-on-Don.
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
The fact that those camshafts, which I found more like camshafts from 968 ... especially if you look at their numbers, here's links: http://teilecar.com/?710,porsche-944...ft-exhaust-neu & http://teilecar.com/?709,porsche-944...aft-intake-neu
04-10-2011, 04:10 AM
#29
I doubt those cams are identical.
PET lists 968 saft as:
intake 944 105 277 09
exhaust 944 105 275 10
944 S2:
intake 944 105 277 07
exhaust 944 105 275 09
I have a set of S2's cams in my garage, can check out them
PET lists 968 saft as:
intake 944 105 277 09
exhaust 944 105 275 10
944 S2:
intake 944 105 277 07
exhaust 944 105 275 09
I have a set of S2's cams in my garage, can check out them
04-10-2011, 06:41 AM
#30
Track Day
Thread Starter
Join Date: Mar 2011
Location: Russia, Rostov-on-Don.
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
I shall be grateful if you will compare with the shafts of S2))) on the links if you view the pictures - there numbers coincide with mine ... and in writing, these other ...