JZ

Well, once again it's that time of year.

This evening, 57 degrees, no humidity.

I couldn't believe how much stronger my car pulled than it had all summer prior!

There is no doubt that our cars are extra-dogs in hot, humid weather. I never remember any of my cars feeling so different during the different seasons.

If it doesn't rain this Friday I intend to hit the track and see just how this correlates at the track.

Mike

I wonder how much of that is fluids related and not just warmer air into the engine?
How are the Khumos holding up?

Nashua_Night_Hawk

me too... Tomorrow another trip to Montreal...2 trips in 2 weeks... damn it's now 850 miles since las week trip.. by next week I will add another 800 miles.

I am shooting to drive back Friday Night... so I can atttend NED Imports wars on Saturday.. my CLS is so dirty as if I raced in Paris-Dakkar rally or the 1000 mile islands rally!

I will try to do an overnight wash and detailing on friday night, If I can't, I do not care, I need just to run my CLS at the drags...

See you there boys!

JZ

Ah, another Kumho update.....

Well, with 25000 miles on them these friggin cheap ass tires are holding up incredibly well!!! They still have a good bit of tread left on them (I'd say around half if you can believe that) but when I rotated them last week it looks like they are starting to wear just a little bit in the insides, likely due to the combination of springs and oversized tires.

I did have an alignment done when these tires went on and it was dead on so that's not the problem. I think one wheele was just a hint out of spec when all was said and done.


Honestly, these have worn so well that I am definately considering the new Kumho MX tires when I need new ones. Those babies look very agressive for a reasonable price. Hopefully at that time they might just come with new 18" wheels too!

JRock

You put 25k on those Kumhos already?? Wow, you must be traveling quite a bit!
I might join you Friday at the track.

JZ

JROCK--I have to give the track a call because I heard rumors that there was no more test and tune on Fridays.

Lemm see what I can find out. I have to get up there at least one more time this year. If not maybe Capitol or MIR.

BNut

This should give you an idea what kind of difference temperature makes on a J block engine.

After getting my AEM SRI (only mod at the time) my best time during the summer at Houston Raceway was a 16.3 with temp's in the 90's and usual Houston humidity. (Stock my car ran a 16.21 in the spring with high 70's to low 80's and mild humidity).

During the fall I went back to the track with just my AEM SRI again with temps in the high 50's to low 60's. Without any weight reduction (I have a sub box, custom built amp rack and spare tire) my first time was a 15.8. Let the car cool off another 30 minutes, ran a 15.7... let the car cool off another 30 minutes ran a 15.62. Let the car cool off another 30 minutes and removed my sub box and spare tire. (The Amp rack is bolted to the rear deck) BAM! 15.52!!!

Air temperature and humidity accounted for a difference in .8 SECONDS!!!

In the summer my times went UP after each run because the intake manifold got progressively hotter after each run and the engine couldn't cool down enough because of the ambient air temperatures.

jimcol711

id have to say that ive never owned a car that was SOOOOO sensitive to the temperature and weather conditions...i mean every car prefers colder air temps but the CL-S just LOVES the cold and is a total DOG in awful heat/humidity. my blazer was fine in the heat, my camaro was fine in the heat, my buicks were fine in the heat..i wonder why it has such a huge effect on the acura?

Zapata

bnut,
Take the 330ci to the track yet? Have you installed that supercharger on the accord?

BSK181

what he said

soopa

nashua, what u been goin to Montreal for so often? shoulda got together with Astro and I last weekend.

NOVAwhiteTypeS

JZ, Tell me bout it. I was driving back from work out in herndon last week. 4:00 in the morning temp around 51 degrees. I was going 147, 3/4 of the way from sterling to tysons on the toll road. Our cars just scream!! hey I'm gonna go to the track too keep me in the loop!

Cl2TLS

does anyone go to MIR and when are people going, that would be sweet to do.

darrinb

wow, i cant wait to go to the track on saturday. 14's here i come!!!

BNut

Only 1,400 miles on the 330 so I'll probably wait another few more thousand miles before I take it to the track.

I've also only been driving a stick since July so I'd rather not miss shift at the track and blow up my engine just yet.

S/C install is on hold until my stock transmission craps out thanks to Honda extending the warranty to 100k miles.

JasonT

Must be nice. It's still mid 80's here in south FL I miss the cool weather!

Nashua_Night_Hawk

Yep, I am now in montreal.. I will be here till Friday afternoon.... Lovely drive dirty ride... should detail my CLS this Friday's night for Saturday's Import Wars at NED....

PM if u have chance to be in Montreal

scalbert

Herdon, VA huh... I may up there soon as we have a few customers in that area, CH2MHill in particular, which I might need to visit.

scalbert

Geez, this morning my 6-Speed finally saw the lowest temps it had ever seen. 66 degrees F so far and it also felt good. I am certainly looking forward to so drives into the office with it in the 40's...

But I have to disagree with some her. This car is really no more susceptible to the heat than others. It may be that with a more performance oriented car people notice the changes more so. My old Typhoon felt like it made 60 HP difference between the winter and the summer and that number might not be far off.

Wires

All cars are bad in the heat. Hot air expands more, so you can't put as much air into the engine, so you can't get as much HP out. I'm thinking your other vehicles felt it the same. I know my Pontiac and my 2000 Chevy truck does.

Interesting note though: With the addition of the supercharger to the truck, the effects of altitude and temperature are almost eliminated! Normally (on a cool day) the power from my roots blower is linear from idle to when the blower kicks in. On a hot day, you can feel that the engine is a dog until the boost happens, and then there is a step in HP.

Funny story about the truck: Up in the Rocky Mountains for vacation. The truck weighs 5000 lbs without a load (just got back from camping, so the box is full of shit). I pull out to pass somebody (there is a pimped out Mustang -- 99+ Cobra) behind me. I walk away from him, and he immediately accelerates too. So he pulls out beside me doing 60, and cranks on it. For the fun of it, I do the same (the blower gives my old Chevy 380HP under the hood, 300HP to the ground). Well, he slowly creaps away (which kind of messes with his ego a bit). I slow up because there is a car in my lane, he keeps going, and holds it at about 80 MPH. And then he passes a ghost car. Tee hee.... I smiled as I passed him (since there were 2 big cops getting out of the ghost car). Spanked twice in one day.... I laughed....

Wires

That's why many guys toss a couple of bags of ice on the intake to chill it down before the run (with the engine off of course!) You can pick up a couple of tenths from that as well.