First off, my car is totally stock other then the basic Trifecta tune. (21 psi)

So to give the brief version of what happened is that earlier today it was 75 degrees....Every once in a while I would drop the car into 3rd every and floor it. The clutch was holding just fine.

About 2 hours later into my drive, the temperature took a big drop down to around 56 degrees. The same action of putting it in 3rd and flooring it would now generate a decent amount of clutch slip.

Now I am sure the lower temps are allowing for some more hp & tq but is anybody else here also getting such a dramatic effect?

 

hmm interesting man we really need to get together so we can hook you up with an update and take a look at your car

 

I find out when the weather here gets that cold in January

 

You say 2 hours into your drive? How long was your trip? I'm sure it has a lot less to do with the temperature outside and a lot more to do with the clutch heating up tremendously over a 2+ hour drive with more than a fair share of spirited runs in it.

 

This morning coming to work I turned out into traffic and didnt realize the car coming in the right light was hauling assssss so I had to floor in in second and as soon as i did I dont know if it was the tires that broke loose or the clutch slipping. I have to test it out later today.

 

i would say the car is making more power with colder denser air, thus more chance for slipping.

 

Mine started slipping last winter/spring with a tune. Had to tune around it with torque management. Need a new clutch so I can pull hard under 3500rpm in 3rd, 4th, and 5th.

 

Yup, I have it in 3rd, 4th and 5th.

 

I have the same 'mod' you do - That's it. Turned 5,000 miles today.

The temps went down into the 50's this weekend and I was messing around a little. My car has LSD, but it just destroys the tires in 1st, so I tried 2nd from about 15mph - floored it and around 4,000rpm it was breaking the tires loose. No clutch slippage though. It runs damn good IMO!

I really don't like to go WOT in 3rd(or any higher gear) unless I have the rpms up, as it's just asking for clutch slippage.

 

for me when its cold i spin or slip the clutch really cant tell. its always in secong gear. my tires are reallllly bald too so idk, but cold weather is good for the turbo, not for the tires

 

Try and look at the speedometer when you think it's spinning or slipping. If the speedo jumps up the tires are spinning if it doesn't prolly slipping.

 

same issue here, clutch slips with cold ambient

 

I have been having this problem for the last few days. Mine even does it in 2nd. I never had ANY slip until the temp dropped. This is with a "warm" clutch as well. I know the cooler air is allowing the car to make more power, it just SUCKS! I was really looking to keep a stock clutch in this car, that's why I haven't been modding heavily. **** happens I guess.

 

So far mine is holding at 14k miles. It even held with a 30psi spike low in 3rd gear but that's not to say it will hold the next time I hit on it.

 

Yeah my clutch slips in the cold weather

 

how do u know if the clutch is slipping??

 

when the RPMs go up and and you don't really go any where, also you will usually smell it too.

 

Anyone in need of a clutch let us know and we can't get anyone a deal on the spec or exedy line up

 

I could smell a group buy in our future! I wonder who can go the lowest, because they all say they can beat anyone's prices. lol

 

What rpms or speed are you shifing into 3rd and flooring it?

 

RPM increase faster than mph, tires don't spin (abnormal rpm increase, can be described as RPMs racing without acceleration). There is another test where you try to start the car in 4th, if it doesn't stall the car when you let out the clutch, its fucked.

As an example, say normal running in 3rd gear @ 3500 rpm is 60 mph. Now say you are at 3000 rpm in 3rd, you floor it, the rpm reads 3500, but you are going less than 60. In that case the transmission RPM is not linked to the engine RPM in the correct ratio (1:1 ratio between engine side and pre-gear reduced transmission side when clutch is completely disengaged). The higher the gear, the lower the rpm and the more throttle, the more likely slippage is to occur. Thus WOT in 5th gear @ 1200 would not be the best idea.

 

so basically if u floor it and it sounds like ur car is in nutral, no clutch.

 

basically, listen to the engine when you are accelerating and look at your mph. If the engine sounds like it is climbing in rpm but your mph is staying the same or not matching up to the sound then your clutch is slipping. As mentioned above, sometimes there will be a shitty smell that goes along with it if you let it slip for to long

 

Yup, once its bad enough your car basically is in neutral. At that point if you ever had a friend or family member who wanted to learn how to drive a manual it can be a good time to teach them. First its nearly impossible to stall and two its not going to make the problem worse.

 

i just got tuned, but it doesnt seem like im slipping. But will check it out just in case.