My 03 Cobra VS FourtyOunce's GT35/40 RX-7
03-11-06, 07:36 AM
#1
My 03 Cobra VS FourtyOunce's GT35/40 RX-7
Comming home from a car show at Hooter's last night, we decided to play a bit on the parkway. We went several times from a 40-45 mph punch. I was starting in 2nd gear and seamed to get a car on him instantly each time. For some reason I was out of it and kept hitting the rev limiter in 3rd so he would catch up a bit. Guess I couldn't hear my car over his open wastegate
We did this 3 or 4 times with similar results. On each run I seamed to end up about a car ahead at the end of 4th or begining of 5th gear. He said he was running just over a bar of boost. He has a stock mazda reman motor with all bolt ons and the single turbo. His brother was trailing is his built Celica/Supra. Apparently he was right there with us but his car runs out of gear at 130. I'm pretty happy because this means my cobra is almost as fast at my rx-7 was.
We did this 3 or 4 times with similar results. On each run I seamed to end up about a car ahead at the end of 4th or begining of 5th gear. He said he was running just over a bar of boost. He has a stock mazda reman motor with all bolt ons and the single turbo. His brother was trailing is his built Celica/Supra. Apparently he was right there with us but his car runs out of gear at 130. I'm pretty happy because this means my cobra is almost as fast at my rx-7 was.
03-11-06, 11:23 AM
#3
Old School
Join Date: Mar 2001
Location: Baldwin City, KS
Posts: 473
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by amp
maybe ya need to get back on one ihor.. 
shed some weight.. considerin your not pullin and hes got 100hp less than ya...
shed some weight.. considerin your not pullin and hes got 100hp less than ya...
03-11-06, 11:55 AM
#4
I think I was pulling when I let off. If you do the math it is going to take about 100 hp more for a cobra to beat an rx-7 because of the weight. Its like racing a supra. Im going to lose a bit of weight when I do the brakes and suspension, but I am not gutting the car or taking out any accesories. I'll just add more power
Last edited by IRPerformance; 03-11-06 at 11:59 AM.
03-11-06, 05:45 PM
#5
silver ghost
iTrader: (11)
Join Date: Sep 2003
Location: Home of the Rolex 24
Posts: 3,061
Likes: 0
Received 5 Likes
on
5 Posts
He needs a good street port to help out on the top -end.. I seem to get a jump onfd's w/ a single and w/ stock ports making 15 to 30 rwhp on paper more than me and hold them off w/ my street port. Less lag more top end. Good run..G
03-12-06, 01:31 AM
#7
Rotary Freak
iTrader: (15)
Good runs Ihor! .. I was starting in 3rd most of the time and shifting at 6900, as this is close to my peak hp point. Ihor would get the jump from the get go, as his SC response is slightly faster than my boost buildup. Overall, I cant be any happier with the way the car is running, even with stock ports. We have to do it again. There was way too much traffic for my taste at 140mph+. As far as top end .. no complaints. The car has plently for stock ports.
Trending Topics
03-12-06, 08:36 AM
#8
silver ghost
iTrader: (11)
Join Date: Sep 2003
Location: Home of the Rolex 24
Posts: 3,061
Likes: 0
Received 5 Likes
on
5 Posts
Originally Posted by FourtyOunce
Good runs Ihor! .. I was starting in 3rd most of the time and shifting at 6900, as this is close to my peak hp point. Ihor would get the jump from the get go, as his SC response is slightly faster than my boost buildup. Overall, I cant be any happier with the way the car is running, even with stock ports. We have to do it again. There was way too much traffic for my taste at 140mph+. As far as top end .. no complaints. The car has plently for stock ports.
03-12-06, 02:07 PM
#9
Missin' my FD
Join Date: Aug 2002
Location: Seminole, FL (Tampa Bay Area)
Posts: 1,755
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by FourtyOunce
Good runs Ihor! .. I was starting in 3rd most of the time and shifting at 6900, as this is close to my peak hp point. Ihor would get the jump from the get go, as his SC response is slightly faster than my boost buildup. Overall, I cant be any happier with the way the car is running, even with stock ports. We have to do it again. There was way too much traffic for my taste at 140mph+. As far as top end .. no complaints. The car has plently for stock ports.
Good runs nonetheless.
03-13-06, 01:37 PM
#16
DOWNSTAIRS MIXUP
Join Date: Mar 2003
Location: Lampasas, TX
Posts: 2,723
Likes: 0
Received 0 Likes
on
0 Posts
Nice races. Ya'll should race again. Ihor- no hit rev limit!!! Fourty Ounce- start in 2nd at those speeds and leave your powerband slightly in each gear before shifting. One of you- tape the damn thing!!! Have fun.
03-15-06, 02:04 AM
#19
Originally Posted by vosko
mostly stock cobra vs mostly unstock fd....
i like em both but ihor has barely touched the cobra!
i like em both but ihor has barely touched the cobra!
03-15-06, 03:44 PM
#22
I brake boost
Join Date: Aug 2003
Location: Orlando
Posts: 2,128
Likes: 0
Received 0 Likes
on
0 Posts
good runs. Sounds like both cars are pretty evenly matched. Now, if the RX-7 stays in second gear at 40-45mph, brake boosts, and shifts at 8k, then it WILL pull on the Cobra. And I'm speaking from experience.
03-15-06, 04:26 PM
#23
Originally Posted by RCCAZ 1
Yea, but it's still a FORD, as opposed to the Mazda, which is an Exotic Ford.
