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Giving New Meaning to "Cold Air Intake"

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Old 01-04-10, 10:48 AM
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Giving New Meaning to "Cold Air Intake"

Yes, it's brutal cold in most parts of the country...perfect FD weather. The car absolutely rips in this stuff, it must have an extra 40 rwhp. "Power dense" is the only way I can describe the driving expereince. I pulled a 3000GT during a third gear roll-on like was absolutely standing still last night lol. In the heat of the summer the car always feels flat, but the way it pulls in this icy cold weather is intoxicating. I'm seeing charge temps of 2-4 C!

There is a reason to rejoice in brutal cold weather (as long as the roads are clear, which they are here in Charlotte). Go drive your FD.
Old 01-04-10, 11:13 AM
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Do you have a wideband hooked up? If so, what AFRs are you seeing?
Old 01-04-10, 11:18 AM
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When it's this cold, I don't drive the 7 too much (we don't have snow around here really). Traction is non existant in 1st and 2nd even at part throttle. The car is a death trap.
Old 01-04-10, 11:20 AM
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Originally Posted by XxMerlinxX
Do you have a wideband hooked up? If so, what AFRs are you seeing?
11.2 at wide open throttle and about 16 psi max
Old 01-04-10, 11:21 AM
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Originally Posted by arghx
Traction is non existant in 1st and 2nd even at part throttle. The car is a death trap.
LOL

holy crap it's fun though
Old 01-04-10, 12:13 PM
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Originally Posted by no_more_rice
LOL

holy crap it's fun though
lol, imagine this weather with water/meth injection ^_^


I can't wait to drive my 7 again...
Old 01-04-10, 12:39 PM
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Originally Posted by no_more_rice
LOL

holy crap it's fun though
I'm hoping new tires will help alleviate this somewhat. The stock twins are very fun in cold weather though. They make a lot of torque (for stock anyway) but are still controllable.
Old 01-04-10, 01:02 PM
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My car is fairly light, around 2600 lbs, and with 14-15lbs on a pettit remapped ecu, non-sequential, full exhaust the car is useless below about 70 mph. The cold intake temps coupled with cold hard tires makes it interesting to say the least, this is with rougly a whopping 320 or so rwhp.
Old 01-04-10, 01:48 PM
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Originally Posted by arghx
I'm hoping new tires will help alleviate this somewhat. The stock twins are very fun in cold weather though. They make a lot of torque (for stock anyway) but are still controllable.
I'm not sure even new gumball rubber is going to help much when it's this cold...as you said, below third gear, forget it. I've gotten sideways a few times but it's still fun!
Old 01-04-10, 01:53 PM
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Originally Posted by djseven
My car is fairly light, around 2600 lbs, and with 14-15lbs on a pettit remapped ecu, non-sequential, full exhaust the car is useless below about 70 mph. The cold intake temps coupled with cold hard tires makes it interesting to say the least, this is with rougly a whopping 320 or so rwhp.
wow your running 15 on the pettit unlimited? What octan are you running 93? I did it once with mine and seemed to run better on about 13psi for some reason.
Old 01-04-10, 02:03 PM
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your lucky its been cold perfect intake temps but i cant drive it damn snow and ice... i let it warm up and was only seeing 79 degrees on the power FC. it was pissing me off i know my car would just love it but better safe than dead =(
Old 01-04-10, 05:20 PM
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Originally Posted by XxMerlinxX
Do you have a wideband hooked up? If so, what AFRs are you seeing?
Turbo cars often feel the best right before they blow up. lol
Old 01-04-10, 07:13 PM
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That's the great thing about cold ambient temps: everything works better, the radiator, IC, dual oil coolers, ceramic coating, blah blah. Heat is rejected immediately. Zero heat soak. Super dense oxygen charge. 2-4 C charge temps after multiple wide open runs (I saw -1 C going down the freeway...amazing). You have to dig it.

Global warming....

Last edited by no_more_rice; 01-04-10 at 07:16 PM.
Old 01-04-10, 07:18 PM
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Yup. It was a nice cold day when I blew my engine.
But DAMN did it run like a raped ape!
Old 01-04-10, 08:25 PM
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what exactly is brutal cold coming form a NC guy? Is it like the 20-30 degrees up in PA? And at what temps do you guys decided it is too cold to risk driving the fd due to traction reasons?
Old 01-04-10, 08:36 PM
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Originally Posted by Chomper149
what exactly is brutal cold coming form a NC guy? Is it like the 20-30 degrees up in PA? And at what temps do you guys decided it is too cold to risk driving the fd due to traction reasons?
It was 35 for a high today here in Denver, NC ( north of Charlotte.) It was 11 last night. For here that is pretty damn cold.

And it is NEVER too cold to drive the FD for any reason other than AFR reasons.

I only could get 83 dgrees out of the water temps and 6 c for the air charge after alot of city putzing around with the HB.
Old 01-04-10, 08:49 PM
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It's going in the 30's tomorrow night in South FLorida
I'll be taking her out for a spin.....
Old 01-06-10, 11:42 AM
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How often does it get into the 30s in central and south Florida?

"Global warming"....ha....what a crock of ****
Old 01-06-10, 11:45 AM
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Originally Posted by yourmom23
wow your running 15 on the pettit unlimited? What octan are you running 93? I did it once with mine and seemed to run better on about 13psi for some reason.
93 octane and I absolutely do not recommend it, this is on my personal car on an engine I built out of parts I would not use in a customers engine, damaged rotors, housings, etc. It will break up slightly above 7k rpms if it is on 15lbs, I have an upgraded ignition to install on it when I find time. Once again, I want to make it clear, I do not recommend this and this engine was really built to see the effects of RA superseals on rotor housings.
Old 01-06-10, 11:54 AM
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My OEM engine (which ran beautifully for 65k miles) popped at ~14 psi on a cold night on a Pettit ECU, after multiple full throttle runs with some boost creep (racing my buddies' WS6)....at least I won
Old 01-06-10, 02:24 PM
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took my car home from work when it was freezing, the cars water temp took forever to get up, air temps were 17 to low 20s the whole time.. so around 50-60c water temp i figured to give a pull in 3rd, and i wasnt expecting it but the car just completely lost traction... even after a couple hard pulls the water temps barely went to 80c. stayed at 79c...... i wish it was like this more often or all the time here in florida.. wish it would snow here
Old 01-06-10, 04:08 PM
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Well i ran 15psi on 110 oct, just for the hell of it i supose. Never enough power i guess.

Oh and thanks again for the new seals kit, everything has been running strong for the first 5k on my first rotory rebuild.

I can only dream of how good a properly tuned pfc would be....some day
Old 01-06-10, 04:29 PM
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go for it as long as theres no (black) ice on the road
Old 01-07-10, 09:04 AM
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Originally Posted by bajaman
Yup. It was a nice cold day when I blew my engine.
But DAMN did it run like a raped ape!
ditto. it was early december in MI when i blew my first engine. it ran hard and sounded great. until it puked an apex seal
Old 01-07-10, 10:10 AM
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Originally Posted by yourmom23
Well i ran 15psi on 110 oct, just for the hell of it i supose. Never enough power i guess.

Oh and thanks again for the new seals kit, everything has been running strong for the first 5k on my first rotory rebuild.

I can only dream of how good a properly tuned pfc would be....some day
Props for taking on the challenge yourself


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