I know we all use one or other form of CAI wether it be the OEM in stock form or otherwise modified or an aftermarket unit.

And I understand that with these intakes the benefits of cooler than engine bay air slightly boosting the engines HP/Performance BUT, What and how does the relative humidity effect your cars/engine performance?

If theres a formula for whatever many degrees cooler the intake air/the more HP it will produce, Then what is the formula for the humidity and how it decreases your and cars HP?

Just a question I was pondering today here in the Hot and Humid state of NY. I have felt better pulls from my old R and my new one with the colder air of winter and spring and even the summer evenings but want to know what you guys that live in the Hot/Humid states of the South feel and know?

Thanks guys,

A.

 

I was talking to a friend of mine who's pretty knowledgeable in cars and he said something like ... every 10 degrees = +/- 4 to 5 hp...i have an OEM in take and i was timing my 0-60 (with a stopwatch and people in the car) so it wasnt that accurate but still..one time i did it at noon w/ a full tank of gas and 2 people in the car and i ran a 7.4 ( i know i suck)...then last night i did it w/ half a tank and 3 total ppl in the car and i ran a 6.5 so....the first day it was sunny and a good 85-90 degreess..last nite was a cool 60 or so...so i guess its true..hope what i just rambled about helped

 

as air temp and humidity goes up so does times and performance goes down!!!!!!! it was in the 90's and humid last tuesday at the dragstrip and constantly ran 15.5's for about 15 runs and in the evening when it started getting cooler and less humid my times went down was down to a 15.2 before they closed. That's with a totally stock ITR with about half a tank

 

I hear ya, and thanks.

I understand the air temp stuff but, there are also times too when it is cooler or even cold and still humid, I'm curious to know IF Just higher humidity decreases performance?

Thanks guys for entertaining me with such a boring post. I'm just thinking of: what if? and stuff...

A.

 

And J,

Be careful with that 5-3 shift. If you're not you may break something or just bend some valves...

IMHO of course,,,

A.

 

I actually only did the 5-3 shift like 3 times Max but those 3 times produced such good results lol.....but can someone explain how i would end up bending my valves and stuff? cuz i have no idea what the technical pros/cons are of downshifting...i've seen other people do it...so i figured it couldnt be THAT bad but now i mgetting scared

 

Just words from the wise,

Since you are in a new R with few miles and just starting to break it in. I'd take it easy, especially for the first at least 1000 miles trying to keep the RPM's varied and OUT of VTEC Without doing hard launches and hard downshifts.

I especially mean when and if you were in Vtec and around high RPM's in 5th gear. I'm not trying to say anything about your driving or your abilities, I'm just saying it's better to be safe than sorry!

If you redline in 5th and aren't careful and do the tip toe through the shift gate to 3rd without at least revmatching and or going through 4th I'd be concerned or at least careful. This is NOT to say I haven't done it but, take care of your new baby.

I could be totally wrong BUT, it just makes sense to me not to beat on it so early.

I'm on my 2nd R this year "No, shifting had nothing to do with it." I do however remember the feeling of being without my car for 3 weeks, "not good."

Good luck,

A.

 

oh mines way broken in i've had it for 3 weeks and i have 2 K miles on it already haha i drove a LOT to say the least...whats the tip toe thing ur talking about?

 

AK! I did a 4-1 in an LS! This was about a month ago. I have seen no problems .......yet

 

Tip toeing is just some slang lingo for sliding through the shift gate from 5th to 3rd. Nothing serious or technical just some colorful language. At any rate I'm just restating the better safe than sorry thing.

True, I've done the same thing in the past but not as a practice and I did it on my old R not the new one. The old one I was kinda hard on and beat on it early. The new one I take better care of, "probably due to losing my first pride and joy."

My new R just turned 3800 miles and I just changed the oil for the first time. I broke it in a little nicer but, I had the benefit of already driving 9000 miles in another R just previously.

My NBP IS a little faster too! I don't know if the break-in had anything to do with it but, it IS different. There is certainly a harder pull.

Good luck,

A.