Looking for some help on cooling. I purchased my car in 2003 and drove it on the street for 23k. I purchased a replica cobra for track, but could not use it at the driving school. Since I had done some suspension, steering, chassis, & brake work to my SVT, I figured I would use it for the school.
Great car - Lot's of MM stuff, GSD3's & some Wilwoods on the front. I have run the car 3 times now. The last time I ran, we stopped floating around the track in 3rd and 4th and started using 2nd out of the slow corners onto the straights (Portland).
This increased speed and heat significantly and I went into limp mode in the last session. I have been studying here what I can do. We are pulling some of the plastic out of the front and are going to box the heat exchanger and radiator. I am not over heating the engine, but am going to box it all.
On the heat exchanger - I don't understand the dual fan setup. It would be great for cooling the system down after a session, but I assume you do not run the fans while you are running - is this correct?
If you do not run the fans, would they not present a severe restriction to flow at speed?
I am going to go to a bigger exchanger - the fans are intriguing, but not sure how they work in this application.
Looked at Killer Chiller, but it is misapplied for road work. Once we started running out in 2nd the car turned the AC compressor off and we ran the rest of the day with the windows down.
Struggle to look at the tach - hit the limiter a bunch( 2nd & 3rd) - gotta try to fix this.
One last question - I have run amsoil forever. I purchased some 10-30 racing oil. Is this a bad idea on an 03 Cobra. We are running the car very hard - I am uncertain of viscosity vs assembly tolerance. I am only driving on the street enough to get to, and home, from the track.
Not sure I will ever use it on the street again - I did take it off the market :-D
x-cliff
Great car - Lot's of MM stuff, GSD3's & some Wilwoods on the front. I have run the car 3 times now. The last time I ran, we stopped floating around the track in 3rd and 4th and started using 2nd out of the slow corners onto the straights (Portland).
This increased speed and heat significantly and I went into limp mode in the last session. I have been studying here what I can do. We are pulling some of the plastic out of the front and are going to box the heat exchanger and radiator. I am not over heating the engine, but am going to box it all.
On the heat exchanger - I don't understand the dual fan setup. It would be great for cooling the system down after a session, but I assume you do not run the fans while you are running - is this correct?
If you do not run the fans, would they not present a severe restriction to flow at speed?
I am going to go to a bigger exchanger - the fans are intriguing, but not sure how they work in this application.
Looked at Killer Chiller, but it is misapplied for road work. Once we started running out in 2nd the car turned the AC compressor off and we ran the rest of the day with the windows down.
Struggle to look at the tach - hit the limiter a bunch( 2nd & 3rd) - gotta try to fix this.
One last question - I have run amsoil forever. I purchased some 10-30 racing oil. Is this a bad idea on an 03 Cobra. We are running the car very hard - I am uncertain of viscosity vs assembly tolerance. I am only driving on the street enough to get to, and home, from the track.
Not sure I will ever use it on the street again - I did take it off the market :-D
x-cliff