High Oil Temp = power + throttle response loss?

[TARDCORE]

Well today I was cruising around, I came upon these 2 cars driving really really slow. When the road allowed I decided to pass them and it never occured to me what they were doing. They were waiting for the long straight of road to race eachother apparently. Well I was the first to pass them as I did not know. It was a newer looking Honda S2000 and Civic Si and they both gunne dit as soon as I passed them. My question is why the hell was I not able to pull away from the S200 at an insane rate? Both cars were bone stock. No loud exhaust, no intake noise, nothing. Even the dam Civic Si was able to keep up on an uphill area adn the S2000 was still right on my ***.
This was what my Oil Temp looked like about 15 mins after of just easy driving so before it was above 260 degrees. Does the amount of power output decrease durastically?


And I drove around for a while after this little incident. I was pissed and wanted to see if the Z could at least cool itself down. Well it couldnt and stayed at this mark with very easy driving.


The thing that really pissed me off was the Civic pulled up next to me and the driver said "I was really expecting a lot more out of a modded 370" and the driver of the S2K gave me a thumbs down. lol embarrassing as hell. I wouldnt doubt that the S2K coulda beat me at a drag race from a dig. My 370z is broken or somethng is wrong with it. I cant powershift it because it doesnt like to be powershifted. I cant drive it hard because it will go into limp mode and apparently its a lot easier to do it than I expected. God I don't know what to with the car.

[FuszNissan]

Even if your temp was at 250 you should have been able to pull away from a civic. Sounds like you were in the wrong gear.

[Trips]

Originally Posted by FuszNissan

Even if your temp was at 250 you should have been able to pull away from a civic. Sounds like you were in the wrong gear.

[TARDCORE]

Originally Posted by FuszNissan

Even if your temp was at 250 you should have been able to pull away from a civic. Sounds like you were in the wrong gear.

lol I was in 2nd and was doing about 30 mph and bounced it off the rev limiter. When I went to shift to 3rd I looked in the mirror and the civic still somewhat kept up. I was expecting to completely lose him but I wasnt pulling as strong as I though. When I did this I must have been at 265 degrees or womewhere since it was right after I decided to pass the cars. One of my friends has an 08 C6 coupe and that thing pulls on the Z like you wouldnt believe. But in comparison, the Z and the C6 compared to the Z and the Si, there would be a much larger gap between the the Z and the Si than the vette. Im just confused as too how people notice any gains from the bolt ons on this car. When I started modding my RSX I didnt notice any gains until I K-PRO'd it and even then all I felt was torque. Not sure how much faster it made it top end wise. The last thing I do will be FI LTH and then Ill re dyno it to see if full bolt ons will help as much as I think they will. Im a little disappointed with the Z. It takes turns great but an S2K and civic... not right man. not right.

[ChrisSlicks]

Maybe your engine did receive some damage from the prior incident. You'll have to go up against another Z or hit the dyno.

[KillerBee370]

Don't you have an oil cooler? If your oil temp hits above 150 I believe it goes into limp mode.

[azn370z]

My manual states 280 degrees is when the engine cuts back power.

[KillerBee370]

Originally Posted by azn370z

My manual states 280 degrees is when the engine cuts back power.

280?! That seems awfully high. I thought it was 260. Even still, I never get above 220 during normal driving and never over 230 at the track.

Oil cooler ftw...

[davidyan]

Originally Posted by azn370z

My manual states 280 degrees is when the engine cuts back power.

Well at 280F, the ECU would limit the revs. Even if limiter didn't start to reduce your rev's yet, at 260F, there could still be some moderate power loss just from the engine being very hot.

[Minicobra1]

Ok, first off, the S2000's little 4 banger puts out about 240bhp, and the car is about 600lbs lighter then the 370z. That motor is putting out a 120bhp per liter in comparison to ours which is about 89bhp per liter.
Real world test on the S2000 is 0-60 5.7 average, 13.8 1/4 mile. Now, compare that to the Z's numbers and tell me how much do you really think you were going to pull on it?

Also, your assuming they were stock, how do you really know, could of had a mellow exhaust and a tune, who knows, but even a stock S2000 will give you a run for the money. Heck my Mini Cooper Turbo sounds pretty stock, but with the tune I have and the mild cat back, intake, etc. it has surprised more then a few Vette's, Mustangs, etc. putting out 200fwhp and it's only 2500lbs :-)
Damm near as quick as the 370z.

Anyway, don't feel bad, there is nothing wrong with your car, you just didn't know what you were up against

On a side note, my Z, without a doubt, runs a little slugish when the oil temp hits 220, I can definitely notice the difference in responsiveness on a hot day compared to when the temps are in the 180 range. Only fix for that is an aftermarket oil cooler, which is something I will definitely be purchasing in the future.

[Red370]

Originally Posted by Minicobra1

Ok, first off, the S2000's little 4 banger puts out about 240bhp, and the car is about 600lbs lighter then the 370z. That motor is putting out a 120bhp per liter in comparison to ours which is about 89bhp per liter.
Real world test on the S2000 is 0-60 5.7 average, 13.8 1/4 mile. Now, compare that to the Z's numbers and tell me how much do you really think you were going to pull on it?

Also, your assuming they were stock, how do you really know, could of had a mellow exhaust and a tune, who knows, but even a stock S2000 will give you a run for the money. Heck my Mini Cooper Turbo sounds pretty stock, but with the tune I have and the mild cat back, intake, etc. it has surprised more then a few Vette's, Mustangs, etc. putting out 200fwhp and it's only 2500lbs :-)
Damm near as quick as the 370z.

Anyway, don't feel bad, there is nothing wrong with your car, you just didn't know what you were up against

On a side note, my Z, without a doubt, runs a little slugish when the oil temp hits 220, I can definitely notice the difference in responsiveness on a hot day compared to when the temps are in the 180 range. Only fix for that is an aftermarket oil cooler, which is something I will definitely be purchasing in the future.

I owned an S2k for a good while as one of my first tuner cars, while the horsepower was decent, theres only so much 162 ft/lbs will do for you. Mine actually dyno'ed at 173whp and 117 ft./lbs on a dynojet, broke my heart really. Truth be told, given its history, the S2k is a solid track car, but he should have pulled quite a bit. I'm a weekend warrior at the drags here, usually race one ever other week, and like i stated before, theres usually 1-1.2 second ET difference. Keep in mind that he also has the FI exhaust and G3's.

[Xan]

Originally Posted by Minicobra1

... tell me how much do you really think you were going to pull on it?....

Remember that at 100MPH, 1 second is about 150 feet...


But to the OP, you lost because you weren't on a drag strip and your Z knows....

[ninous26]

Originally Posted by Minicobra1

Ok, first off, the S2000's little 4 banger puts out about 240bhp, and the car is about 600lbs lighter then the 370z. That motor is putting out a 120bhp per liter in comparison to ours which is about 89bhp per liter.
Real world test on the S2000 is 0-60 5.7 average, 13.8 1/4 mile. Now, compare that to the Z's numbers and tell me how much do you really think you were going to pull on it?

Also, your assuming they were stock, how do you really know, could of had a mellow exhaust and a tune, who knows, but even a stock S2000 will give you a run for the money. Heck my Mini Cooper Turbo sounds pretty stock, but with the tune I have and the mild cat back, intake, etc. it has surprised more then a few Vette's, Mustangs, etc. putting out 200fwhp and it's only 2500lbs :-)
Damm near as quick as the 370z.

Anyway, don't feel bad, there is nothing wrong with your car, you just didn't know what you were up against

On a side note, my Z, without a doubt, runs a little slugish when the oil temp hits 220, I can definitely notice the difference in responsiveness on a hot day compared to when the temps are in the 180 range. Only fix for that is an aftermarket oil cooler, which is something I will definitely be purchasing in the future.

Dude, don't stick up for a a stock S2K in a drag race. 2 words-- NO BALLS. That's stock though.. Handling is a different story and the S2K is pretty decent after 80. Still not even close to a 370z

[theDreamer]

Originally Posted by TARDCORE

lol I was in 2nd and was doing about 30 mph and bounced it off the rev limiter. When I went to shift to 3rd I looked in the mirror and the civic still somewhat kept up. I was expecting to completely lose him but I wasnt pulling as strong as I though. When I did this I must have been at 265 degrees or womewhere since it was right after I decided to pass the cars. One of my friends has an 08 C6 coupe and that thing pulls on the Z like you wouldnt believe. But in comparison, the Z and the C6 compared to the Z and the Si, there would be a much larger gap between the the Z and the Si than the vette. Im just confused as too how people notice any gains from the bolt ons on this car. When I started modding my RSX I didnt notice any gains until I K-PRO'd it and even then all I felt was torque. Not sure how much faster it made it top end wise. The last thing I do will be FI LTH and then Ill re dyno it to see if full bolt ons will help as much as I think they will. Im a little disappointed with the Z. It takes turns great but an S2K and civic... not right man. not right.

If you were at 265 the car might be in first stage limiting mode, slightly.
Also, you said you were going uphill and at those engine temps you are getting massive amounts of heat soak into the air intake system.

Overall I would just say your car was just running hot, I know your past with an oil cooler, but a better intake & oil cooler at those temps will help keep the car running at maximum output even when hot.

[TARDCORE]

Originally Posted by theDreamer

If you were at 265 the car might be in first stage limiting mode, slightly.
Also, you said you were going uphill and at those engine temps you are getting massive amounts of heat soak into the air intake system.

Overall I would just say your car was just running hot, I know your past with an oil cooler, but a better intake & oil cooler at those temps will help keep the car running at maximum output even when hot.

i agree. i think i may have experienced some sort of electronic limiter. i remember reading that once the Z had over 5k miles on it the oil cooling issues wasn't as bad. Im hoping that may be the case since my car has a little over 2000 miles. i think its really gonna show once I re dyno it with full bolt ons to see wether or not my past issue with the oil cooler damaged anything or not.