pushing the car up to the line...

[Only4U]

a friend and i are in a debate about this one...

hypothetical situation...not really, but a situation nonetheless:

you have a 160 stat. let's say the outside temp is 40, even though temp will not make much of a difference.

if the contents under your car are cold (intake mainly) and you turn your car on, with the hood open and the fans going and you drive your car up to the start line (leaving it on during the staging lanes), will that be ANY worse than leaving the car to sit for an hour, then pushing it up to the starting line and turning it on and running?

i think either way, your car will be so close to that 160 operating temp by the time you start, that as long as you keep the hood open and fans going so that the intake stays cool, then you are good to go. but if you think about it, less than 10 seconds after a car is started, the engine block is already warm, as is the TB and so on, so i think it's pointless to push your car up to the starting line UNLESS you have no radiator, which is why many drag racers do that...

comments?

[xjarayax]

i'd also be leaving the fans on when the was off pushing it to the line

[MustangEater8251]

I ice upper intake plenum, TB, and CAI, push it htorugh the lanes, befoer I start car all I iuced is usually cool to the touch. I push up to the end of staign lanes, I start car with heater on, sets off fans, to help keep under hood temps. I pull up do burn out, rev to 4k, launch and go through the track, after I finish, slow down for turn aroudn I turn on heater, pop hood, and let the air flow in, sinc eI am drivng ~20 mph, pic up tomeslip, drive to stagin lanes, open hood, shut motor off, and open/close hood to fan the motor a little then add ice.

I push my car 3/4-1 a mile to race a 1/4 mile for 15-16 seconds.

[xjarayax]

Yeah but the arguement is whether it improves your times or not. I say yes.

Sam

[*K*night Rider]

I think it would...drive fromt he pits to the lanes is like 10 seconds at temple...but like 30 at seguin...get there....put in N and turn off car before you stop...roll the rest of the way.

It could only make your car run cooler. I dont think it helps MUCH...but maybe .01 or .02 seconds at least. which is the difference between a 15.01 and a 14.99

[StockV6Cam2]

<blockquote>quote:</font><hr>Originally posted by MustangEater8251:
I ice upper intake plenum, TB, and CAI, push it htorugh the lanes, befoer I start car all I iuced is usually cool to the touch. I push up to the end of staign lanes, I start car with heater on, sets off fans, to help keep under hood temps. I pull up do burn out, rev to 4k, launch and go through the track, after I finish, slow down for turn aroudn I turn on heater, pop hood, and let the air flow in, sinc eI am drivng ~20 mph, pic up tomeslip, drive to stagin lanes, open hood, shut motor off, and open/close hood to fan the motor a little then add ice.

I push my car 3/4-1 a mile to race a 1/4 mile for 15-16 seconds.<hr></blockquote>

Damn you do all that? I should give that a try! I leave the damn car running the whole time.

[MustangEater8251]

well it depends on the weather... usually on a colder night I do not, but if its humid and above 80... definetly.

hot humid, and no ice I ran some 16 flats, hit a 15.9 once.

abotu 75 not as humid, and ice, ran consistent 15.6s.

All the same setups, 60's pretty close to each other.

ther is a really big swamp located ot too far form my track so humidity can get rough there.

[Only4U]

<blockquote>quote:</font><hr>Originally posted by *K*night Rider:
I think it would...drive fromt he pits to the lanes is like 10 seconds at temple...but like 30 at seguin...get there....put in N and turn off car before you stop...roll the rest of the way.

It could only make your car run cooler. I dont think it helps MUCH...but maybe .01 or .02 seconds at least. which is the difference between a 15.01 and a 14.99<hr></blockquote>

that's assuming you don't have the coldest thermostat possible. i have a 160 and that's pretty cool. starting your car, your engine is already at about 100 degrees, 10 seconds later, it's probably reached 140, and then 3 minutes later, it has reached the operating temp, whether that be 160, 180, or 195.

[nikon]

just one thing...first its not good for the engine to be too cold...it has to run for a little to let oil coat the cylinders....and I dunno about your track but my track doesnt allow ice or any oteh cooling method (gets on the track) your car has to be able to cool itself....bit definatley heater helps alot ;)

[MustangEater8251]

<blockquote>quote:</font><hr>Originally posted by nikon:
just one thing...first its not good for the engine to be too cold...it has to run for a little to let oil coat the cylinders....and I dunno about your track but my track doesnt allow ice or any oteh cooling method (gets on the track) your car has to be able to cool itself....bit definatley heater helps alot ;) <hr></blockquote>

I take the ice off before I start the motor, I keep it in the spot where the spare tire goes...

[SLOWBRAEATER]

mustang eater, i bet if you ran the car without doing all that icieing you would run an almost identical timeslip, its not like your running a 1000 hp monstor that needs the iceing. i think that is just overkill and a waste of time

[12secondv6]

<blockquote>quote:</font><hr>Originally posted by SLOWBRAEATER:
mustang eater, i bet if you ran the car without doing all that icieing you would run an almost identical timeslip, its not like your running a 1000 hp monstor that needs the iceing. i think that is just overkill and a waste of time<hr></blockquote>
But what is your track experience?
I'm not bashing you but I have a good amount of track experience. I think I might have a bit more than you.
If you look around at the track many people are doing anything and everything to keep the engine cool.
Bag's of ice, ice packs, fan's, hood open, pushing the car through staging lanes etc.

Every bit of horsepower counts.

Heat is the enemy.

Mustangeater is avoiding heat soak.

Most hard core drag (1/4 or 1/8 mile) racers do these methods

Depending on the weather I have been known to do the following:
1) Back in the day I used ice bags but later I realized water got everywhere and made a mess
2) Later on I bought a big bag of ice and brought small zip lock baggies and filled them up w/ ice and put them all over my cold air kit, intake manifold and throttle body
3) Now I have used ice packs placed in various places under the hood
4) Popping the hood open between rounds is always done
5) As soon as I pass the end of the 1/4 and I start to slow down I pop the hood so it gets some air to flow over the hot engine
6) I start the car as few times as possible
7) I never let it idle
8) If the car is moved in the staging lanes I keep the hood open
9) My coolant mixture is 33% coolant and 66% water (water absorbs heat more redily)
10) 160 Thermo is used
11) Pushing the car through staging lanes (only in the summer)
12) Fan's on on the return road, staging area, and pits
13) Wrap fuel lines in thermo tec heat wrap

I'm probably starting to wander off right now.

I'm just making a comment.
This is what I do, it seems to work quite well for me.
Many other drag racers (typically the more experienced and/ or faster ones) seem to do these and I have learned from them

[Dominic]

I agree with everything you do 12sec as being beneficial, I do most of that myself... the only things I dont do are those which cost money like special little ice bags and such :D

[MustangEater8251]

<blockquote>quote:</font><hr>Originally posted by SLOWBRAEATER:
mustang eater, i bet if you ran the car without doing all that icieing you would run an almost identical timeslip, its not like your running a 1000 hp monstor that needs the iceing. i think that is just overkill and a waste of time<hr></blockquote>

uhm actually on some nights I ahve seen as high as a loss of .2. I admit on the cold nights its not too bad, but I bet 80% of my racing its 80 degrees and humid, not exactly ideal. I race alot and kick myself in the butt when I skip getting ice on the way to the track, because I am running a little late, and if oyu do not get ther before gates open you will wait 45 min. in line, if you get ther before gates open you might get an extra 2 runs in.

Cooling fan, manual switch stuff is fine, but generaly drains the piss out of my battery(have expereinced dead battery, and almost non-crank overs at the track, which sucks), I try to avoid it. My car loves it bone cold, i start it up, car idles, for abotu 30 secs to a minute, gets enough oil then I run it.

May not work for you, may not work for others... but I know it works for my car. I have probable a 100 or more runs at the dragstrip in my car, and not that many mods so I learned to fine tune certain things, and ice, is something I consider a necessity to improve my times... Its a ritual for me, 2 bags of ice and a liter of Mountain Dew Code Red, while I wait for them to open the gates.

All I know is I started out running 16.8s with a flowmaster and previuos version of a ghetto intake, now I run mid 15s, with some bolt ons... Something once thought impossible in a 3.4L. Something I am doing is working.

12sec... as for getting water everywhere I use garbage bags I steal from work.

[ January 12, 2003: Message edited by: MustangEater8251 ]</p>

[xjarayax]

Anyone else? Evan I think I'm winning [img]smile.gif[/img]