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      09-15-2017, 11:48 AM   #1
8k4
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P3 Gauge IAT Temps

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Ambient temp as displayed by the car dash when car is warmed up:
P3 air temp cruising speed say 50mph:

Im seeing large deltas

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      09-15-2017, 11:53 AM   #2
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Quote:
Originally Posted by 8k4 View Post
If supercharged list

Ambient temp as displayed by the car dash when car is warmed up:
P3 air temp cruising speed say 50mph:

Im seeing large deltas

Ex
74
125
for me ESS 625 kit:
after stop and go traffic (with my 5 gal ice box) I saw 30+ degrees over ambient temps. the longer the drive, the higher the temp increases. this is due to the manifold and the aluminum ice box not being able to deflect heat.

with the oem ess kit (small plastic res.) in stop and go traffic it's about 20 degrees above ambient once other fluids are at operating temps. the cooler the ambient, the longer the intake temps take to get to the 20 degree delta...

ice box- 90 deg ambient, 120+ AIT displayed on P3
ess res.- 90 deg ambient, 110 AIT displayed on P3

I think the only solution is another heat exchanger. my plans are for another heat exchanger with two small fans drawing air.

if you look at the turbo m4s/m3s there are a few heat exchangers....
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      09-15-2017, 05:17 PM   #3
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Quote:
Originally Posted by 8k4 View Post
If supercharged list

Ambient temp as displayed by the car dash when car is warmed up:
P3 air temp cruising speed say 50mph:

Im seeing large deltas

Ex
74
125
25F to 35F delta is what I typically see with the ess625. The cooler the ambient, the more efficient the IC works. If you are seeing that kind of difference while cruising at 50mph, you have something wrong or do not have an IC


Quote:
Originally Posted by Patrón View Post
for me ESS 625 kit:
after stop and go traffic (with my 5 gal ice box) I saw 30+ degrees over ambient temps. the longer the drive, the higher the temp increases. this is due to the manifold and the aluminum ice box not being able to deflect heat.

with the oem ess kit (small plastic res.) in stop and go traffic it's about 20 degrees above ambient once other fluids are at operating temps. the cooler the ambient, the longer the intake temps take to get to the 20 degree delta...

ice box- 90 deg ambient, 120+ AIT displayed on P3
ess res.- 90 deg ambient, 110 AIT displayed on P3

I think the only solution is another heat exchanger. my plans are for another heat exchanger with two small fans drawing air.

if you look at the turbo m4s/m3s there are a few heat exchangers....
With the n54 equipped with a JB4, there was an option to make the rad fan more (and I think higher speed). I've been keeping an eye out for something like this for the M3 but its never been mentioned. Maybe a Benvo question if its possible..
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      09-15-2017, 06:06 PM   #4
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Yeah my delta are sometimes 60 degrees, I'm not sure what is up.
I have an ice tank, no ice, bilge pump


My lines do run on the frame rails near the headers, I wonder if that's heating things. I may reroute down the drive shaft tunnel

Just checking the P3 doesn't have to be calibrated for AIT does it?
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      09-15-2017, 09:06 PM   #5
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Quote:
Originally Posted by jdamore View Post
25F to 35F delta is what I typically see with the ess625. The cooler the ambient, the more efficient the IC works. If you are seeing that kind of difference while cruising at 50mph, you have something wrong or do not have an IC




With the n54 equipped with a JB4, there was an option to make the rad fan more (and I think higher speed). I've been keeping an eye out for something like this for the M3 but its never been mentioned. Maybe a Benvo question if its possible..
Oddly enough my coolant temps are great. The thermostat keeps them 196-197, sometimes peaking a little above 200 but the. Drops pretty quick to 196.
Quote:
Originally Posted by 8k4 View Post
Yeah my delta are sometimes 60 degrees, I'm not sure what is up.
I have an ice tank, no ice, bilge pump


My lines do run on the frame rails near the headers, I wonder if that's heating things. I may reroute down the drive shaft tunnel

Just checking the P3 doesn't have to be calibrated for AIT does it?
I Don't think the line locations really matter. Mine are down the center tucked to the underside. It's the damn material of the manifold and the ice box. Plastic and carbon would be the best choice.
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      09-15-2017, 09:36 PM   #6
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Quote:
Originally Posted by 8k4 View Post
Yeah my delta are sometimes 60 degrees, I'm not sure what is up.
I have an ice tank, no ice, bilge pump


My lines do run on the frame rails near the headers, I wonder if that's heating things. I may reroute down the drive shaft tunnel

Just checking the P3 doesn't have to be calibrated for AIT does it?
IAT values are polled from the OBD.
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      09-16-2017, 12:50 PM   #7
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Quote:
Originally Posted by jdamore View Post
Quote:
Originally Posted by 8k4 View Post
Yeah my delta are sometimes 60 degrees, I'm not sure what is up.
I have an ice tank, no ice, bilge pump


My lines do run on the frame rails near the headers, I wonder if that's heating things. I may reroute down the drive shaft tunnel

Just checking the P3 doesn't have to be calibrated for AIT does it?
IAT values are polled from the OBD.
The best option is Killer Chiller + I've chest!
I get -20 F below OAT delta!
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      09-16-2017, 08:45 PM   #8
Patrón
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Originally Posted by Weyne Masters View Post
The best option is Killer Chiller + I've chest!
I get -20 F below OAT delta!
Damn. That's awesome.
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      09-17-2017, 07:22 PM   #9
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Turns out the bilge pump wasn't running. Took it apart and the commutator was caked with carbon from the brushes. FYI the unit is a hunk of shit and not built to last, very disappointed; it's not easy popping in and out, either
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      09-17-2017, 07:47 PM   #10
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Quote:
Originally Posted by 8k4 View Post
Turns out the bilge pump wasn't running. Took it apart and the commutator was caked with carbon from the brushes. FYI the unit is a hunk of shit and not built to last, very disappointed; it's not easy popping in and out, either
You mean this pump?

http://www.ebay.com/itm/132080609405

They also sell it on Amazon so you can price shop around.
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      09-17-2017, 11:18 PM   #11
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You mean this pump?

http://www.ebay.com/itm/132080609405

They also sell it on Amazon so you can price shop around.
No that's the stock pump, I'm running a Rule 2000 bilge pump, much higher GPH (flow)
https://www.amazon.com/Rule-Marine-B.../dp/B071949KND

It's made like shit internally fyi. It's entirely possible I got a fake idk
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