968 turbo
09-28-2012, 01:06 AM
#16
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the other day i allowed my car to hiccup in gear while jogging it across the lawn to wash it. i didn't want to tear up any grass, but it almost stalled. then i pulled it into neutral, and now the check oil light is on full time. i've since taken a trip, so i'm pretty sure the car is fine (4 bars on the needle).... i wonder if the reason Porsche did this thing of having the oil light come on on a cough and then having it stay on has something to do with the sensor noted above.
,
Last edited by odurandina; 09-28-2012 at 09:08 AM.
09-28-2012, 01:54 AM
#17
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the other day i allowed my car to hiccup in gear while jogging it across the lawn to wash it. i didn't want to tear up any grass, but it almost stalled. then i pulled it into neutral, and now the check oil light is on full time. i've since taken a trip, so i'm pretty sure the car is fine... i wonder if the reason Porsche did this thing of having the oil light come on on a cough and then having it stay on. i've got the normal 4 bars on the needle.
The sensor in the head is prt of the vaiocam system and it not connected to the gauges.
09-28-2012, 11:32 AM
#19
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Thank you all for good words and specially Chris White for sharing that kind of info, your build is very nice.
Yes, video is in Estonian, thatswhy I didn't post it here as our language is very unlikely to be understood.
Currently I have been to only one top speed challange:
(very bad driving from my side but as it was the first time I raced with this car then I wanted to be very careful) 0-1mile 292kmh
Next year I plan to participate in more events (drag,top speed, trackdays) as this season was very short for me due to KEP stage 2 cluth failure.
And Crhis is right the engine is from 944 S2, but I have the original 968 variocam eninge still in my garage. I didn't know about the head strenght issue so it's good that I haven't sold the 968 engine...
Oilcooler is 32ribs, should be enough.
Our goal was to focus on details surrounding the engine (so later we could focus on only the engine itself, thatswhy this thread here
) so it's very nice that you ll noticed it.
Heres some more custom fabrication picutres:
custom engine mount to fit bigger turbo
little machine work to fit the turbo
custom oil return
custom heatshield
and the plastic oil filler melted so it had to be replaced
So far I have found from here alot of useful info, thank you all, winter is coming so I have some time to think what to do for next summer.
Yes, video is in Estonian, thatswhy I didn't post it here as our language is very unlikely to be understood.
Currently I have been to only one top speed challange:
Next year I plan to participate in more events (drag,top speed, trackdays) as this season was very short for me due to KEP stage 2 cluth failure.
And Crhis is right the engine is from 944 S2, but I have the original 968 variocam eninge still in my garage. I didn't know about the head strenght issue so it's good that I haven't sold the 968 engine...
Oilcooler is 32ribs, should be enough.
Our goal was to focus on details surrounding the engine (so later we could focus on only the engine itself, thatswhy this thread here
) so it's very nice that you ll noticed it.Heres some more custom fabrication picutres:
custom engine mount to fit bigger turbo
little machine work to fit the turbo
custom oil return
custom heatshield
and the plastic oil filler melted so it had to be replaced
So far I have found from here alot of useful info, thank you all, winter is coming so I have some time to think what to do for next summer.
09-29-2012, 05:53 AM
#20
Krst, thanks for the pictures, beautiful car and beautiful build!
09-30-2012, 02:08 AM
#21
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Krst, tell us about the KEP ii failure? Was it the fork that broke? They have a bit of a reputation of this happening.
Assume that video is of your 0-1km run. 6500rpm in 5th equates to 240kph. So you hit 290kmh in 6th gear? How did the car feel and do you have any aero additions to the body?
Assume that video is of your 0-1km run. 6500rpm in 5th equates to 240kph. So you hit 290kmh in 6th gear? How did the car feel and do you have any aero additions to the body?
10-01-2012, 11:03 AM
#23
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Krst, tell us about the KEP ii failure? Was it the fork that broke? They have a bit of a reputation of this happening.
Assume that video is of your 0-1km run. 6500rpm in 5th equates to 240kph. So you hit 290kmh in 6th gear? How did the car feel and do you have any aero additions to the body?
Assume that video is of your 0-1km run. 6500rpm in 5th equates to 240kph. So you hit 290kmh in 6th gear? How did the car feel and do you have any aero additions to the body?
Clutch just cracked from 2 places (only one crack on picture)
Video is 0-1mile run with a result of 292kmh, 0-1km was 250kmh
I'm using 944 S2 gearbox and have only 5 gears. Car acted very good during that run, no problems. Only change from factory aero is front splitter and rear rs style spoiler.
10-01-2012, 11:52 AM
#24
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Yes, the DME will not try to operate the Vario Cam it there is not enough hydraulic pressure to make it work.
10-02-2012, 05:59 AM
#25
The one I'm talking about picks oil temp in the lateral oil vein on the intake side and is located near the 3rd intake runner. See pic below.
As for the pressure sensor, sorry but I can't figure out where it is...?
Sorry Krst for the slight OT...
10-02-2012, 08:50 AM
#26
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ok, i too was thinking "where's 6th gear ?"
love this video ! and this might be the fastest pass of a 968 ever caught on tape.
but just so i can sleep tonight, what combo of gears and tires makes 181 mph in 5th ?
sounds like this would be a pretty good combo for anyone running a mid-hp V8.
10-02-2012, 11:00 AM
#27
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ok, i too was thinking "where's 6th gear ?"
love this video ! and this might be the fastest pass of a 968 ever caught on tape.
but just so i can sleep tonight, what combo of gears and tires makes 181 mph in 5th ?
sounds like this would be a pretty good combo for anyone running a mid-hp V8.
love this video ! and this might be the fastest pass of a 968 ever caught on tape.
but just so i can sleep tonight, what combo of gears and tires makes 181 mph in 5th ?
sounds like this would be a pretty good combo for anyone running a mid-hp V8.
Heres info about rim/gearratio etc (in mph, yellow column):
And the same run from a different angle
10-02-2012, 12:01 PM
#28
Hello:
Speaking about the 968 16v head on a turbocharging application, I has been using it including the variocam for about 8 years may be more. Not a problem at all up to know. My engine is completelly stock, except for a set of Carrillo rods and raceware studs all the way. I use my car regularly. It is not a dedicated track car but I have participated on speed tests (1/2 mile) a some drag racing. I have done a lot of dyno pulls. My boost controller have two boost settings, 13 psi and 22 psi. Most of the time is in low boost setting but all the dyno puls and the race is in high boost. I feel there is a lot of incorrect information about the variocam. My approach was simple, use it in the position to optimize power by turning it on (Or off. I don't remember. I may need to hook up to the Motec to find out) at some point in the rpm range. I NEVER has or have a reliabity problem with my setup.
Speaking about the 968 16v head on a turbocharging application, I has been using it including the variocam for about 8 years may be more. Not a problem at all up to know. My engine is completelly stock, except for a set of Carrillo rods and raceware studs all the way. I use my car regularly. It is not a dedicated track car but I have participated on speed tests (1/2 mile) a some drag racing. I have done a lot of dyno pulls. My boost controller have two boost settings, 13 psi and 22 psi. Most of the time is in low boost setting but all the dyno puls and the race is in high boost. I feel there is a lot of incorrect information about the variocam. My approach was simple, use it in the position to optimize power by turning it on (Or off. I don't remember. I may need to hook up to the Motec to find out) at some point in the rpm range. I NEVER has or have a reliabity problem with my setup.
10-02-2012, 01:12 PM
#29
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Hello:
Speaking about the 968 16v head on a turbocharging application, I has been using it including the variocam for about 8 years may be more. Not a problem at all up to know. My engine is completelly stock, except for a set of Carrillo rods and raceware studs all the way. I use my car regularly. It is not a dedicated track car but I have participated on speed tests (1/2 mile) a some drag racing. I have done a lot of dyno pulls. My boost controller have two boost settings, 13 psi and 22 psi. Most of the time is in low boost setting but all the dyno puls and the race is in high boost. I feel there is a lot of incorrect information about the variocam. My approach was simple, use it in the position to optimize power by turning it on (Or off. I don't remember. I may need to hook up to the Motec to find out) at some point in the rpm range. I NEVER has or have a reliabity problem with my setup.
Speaking about the 968 16v head on a turbocharging application, I has been using it including the variocam for about 8 years may be more. Not a problem at all up to know. My engine is completelly stock, except for a set of Carrillo rods and raceware studs all the way. I use my car regularly. It is not a dedicated track car but I have participated on speed tests (1/2 mile) a some drag racing. I have done a lot of dyno pulls. My boost controller have two boost settings, 13 psi and 22 psi. Most of the time is in low boost setting but all the dyno puls and the race is in high boost. I feel there is a lot of incorrect information about the variocam. My approach was simple, use it in the position to optimize power by turning it on (Or off. I don't remember. I may need to hook up to the Motec to find out) at some point in the rpm range. I NEVER has or have a reliabity problem with my setup.
