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Post Maf Tubes & Drop-ins, worth it??

Originally Posted by Pelican170 http://www.the370z.com/1256728-post402.html This is from another thread where the internal temps had been measured... Yup, I referred to this post somewhere back on page 4 before god

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Old 10-20-2011, 04:36 PM   #121 (permalink)
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Quote:
Originally Posted by Pelican170 View Post
My new HPS post MAF tubes installed

This is from another thread where the internal temps had been measured...
Yup, I referred to this post somewhere back on page 4 before god knows what happened and we veered off into brake ducting and 5.0 hatred.
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Old 10-20-2011, 04:36 PM   #122 (permalink)
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Iat's are somewhat separate from straight tube temps.


The heat conductivity of the plastic is very low, although the plastic is somewhat thin so you see some heat transfer.

With the stagnant air in front of the inlet, though, you see a huge iat spike when sitting. You can alleviate this a little with ducting, but for the most part it is unavoidable.
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Old 10-20-2011, 04:45 PM   #123 (permalink)
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Originally Posted by Masa View Post
Yup, I referred to this post somewhere back on page 4 before god knows what happened and we veered off into brake ducting and 5.0 hatred.
lol, yea i kept jumping on and off the thread. at one point i thought i went into the wrong one by accident
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Old 10-20-2011, 06:00 PM   #124 (permalink)
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Originally Posted by Red__Zed View Post
Did you check interior temps on the tubes?
no no, this was just a pop the hood and sort of feel around where I could feel the most heat... the passenger airbox most definitely gets hot with that radiator hose close/under it though... the drivers side was surprisingly much cooler, but like I said, this was most roads being 40-45 mph with little engine load. I did get on it on the highway a bit, but this is only about a mile stretch both ways and then it was back to another 10 minutes of the lower speeds. For being only 60 degrees and very windy, it was warm... on a 90 degree day with heavy engine load I can only imagine.
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Old 10-20-2011, 06:02 PM   #125 (permalink)
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Originally Posted by Pelican170 View Post
My new HPS post MAF tubes installed

This is from another thread where the internal temps had been measured...
this is interesting... but from someone who has only 60 posts and i'm not sure how accurate his set-up is... I would still like to get more measurements.
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Old 10-20-2011, 06:07 PM   #126 (permalink)
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Originally Posted by Methodical4u View Post
this is interesting... but from someone who has only 60 posts and i'm not sure how accurate his set-up is... I would still like to get more measurements.
That corroborates with what I've seen logged via Osirus uprev. 60 posts here doesn't mean he doesn't know about cars -- sounds like he has good datalogging devices on hand

You may be able to bring IAT's down some with additional shielding, but in practical terms the major benefit would be seen staging at the drag strip rather than on the road.

That said, if you are curious and want to tinker, the easiest solution might be to pick up a good OBDII datalogger cable that can be used with software on a PDA (e.g., the auterra) so that you can datalog changes in airtemps and get good estimates of mean temps with and without extra shielding over a range of circumstances.
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Old 10-20-2011, 06:23 PM   #127 (permalink)
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lol oh hell no... i'm not running anymore wires or laptops or any of that crap in my car... i'd rather just shield everything and know it's ... well just cooler lol.
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Old 10-20-2011, 07:35 PM   #128 (permalink)
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not gonna happen, no money in the Budget, only way is if we can find a way to trim some money somewhere else to offset the cost of the beer and travel expenses.
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Old 10-20-2011, 08:08 PM   #129 (permalink)
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Originally Posted by Methodical4u View Post
lol oh hell no... i'm not running anymore wires or laptops or any of that crap in my car... i'd rather just shield everything and know it's ... well just cooler lol.
jordo...i guess we are a dying breed....
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Old 10-20-2011, 08:19 PM   #130 (permalink)
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No but reliable retrieval of data does. You can't control what happens on the highway whereas you can at the track so the data would be immensely more accurate and relatable...you know...since you track your car so much anyway.

If it hasn't happend yet i expect to see some BS about how Z brakes get 1.368 degrees hotter than mustang brakes so we should all burn our cars to the ground and collect the insurance money.
i've actually seen better temp reading results from road usage than track usage. by the time you're off, the brake have cooled enough that a good reading is more difficult to get.

You are right, the Z never saw the track. I saw catastrophic fuel starvation in a 40mph turn autocrossing it. Engine shut down, car would not start for 24hrs. Didn't really feel any desire to put it on the track after that.

As to your second comment, no worries on that. I don't feel any need to compare my car to the z. I chose to make a switch for my own personal reasons, and I don't need to prove why to anyone here.
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Old 10-20-2011, 08:34 PM   #131 (permalink)
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Pro Tip: Keep more than a 1/4 tank of gas in the car.
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Old 10-20-2011, 08:36 PM   #132 (permalink)
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Pro Tip: Keep more than a 1/4 tank of gas in the car.
1: no one tracks with a full tank
2: about 5/8ths full when it happened
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Old 10-20-2011, 08:41 PM   #133 (permalink)
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Originally Posted by Red__Zed View Post
1: no one tracks with a full tank
2: about 5/8ths full when it happened
quote from AK

Quote:
This is what he means: Fuel starvation, who else?

This only happens when you're at the track and you have half tank or less.

Keep gas in your car.
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Old 10-20-2011, 08:43 PM   #134 (permalink)
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Sometimes you don't want to run a heavy fuel load, though. Especially if you are just doing a ~60 second competitive autocross run.

Though given the circumstances you kind of have to, but we are getting close to a fuel starve solution from what I have read. Currently in testing but so far it has had positive results.
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Old 10-20-2011, 08:45 PM   #135 (permalink)
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Originally Posted by DarkZide View Post
quote from AK




Keep gas in your car.

several members here have had fuel starve at 9/10ths full when using r comps at the track. There is a definite flaw in nissan's gas tank design for this car.

On street tires, I think fuel starve can happen as early as 7/10ths if you push hard enough on the "right" (or wrong depending on how you look at it) track.


if you track this car, you MUST top off the tank between sessions. Very annoying.

PS--come on Phunk, get that damn fuel tank fix out dammit.
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