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Too Hot 4 Scoobs?
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Old 02 Aug 2004, 10:01 PM   #1 (permalink)
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Too Hot 4 Scoobs?

Went to the garage Saturday, need new O2 sensor.
Since then noticed the car is quite sluggish, reckon this is anything to do with the O2 sensor or is it just too hot for the scoob, with it likin the cooler air :?:
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Old 02 Aug 2004, 10:47 PM   #2 (permalink)
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Believe me TZ - my scoob hasn't been right for a few days now - its most definitely the heat. The car felt quite lethargic when on the Moors yesterday - hardly surprising though with the intake temps the way they are

A suggestion for you. Drive your car during the day (in this heat) and then park her up. Following morning - get up nice and early say about 5am ish and take your car out then You will notice the difference.

Nowt to worry about fella - your O2 sensor won't be helping much either
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Old 03 Aug 2004, 12:11 AM   #3 (permalink)
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Cheers Nelson, it just feels real sloooooooooooooooooooooow :cry:
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Old 03 Aug 2004, 08:13 AM   #4 (permalink)
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I know how you feel mate - drove the old girl to work this morning and even with the rain in he air she still felt a bit lethargic

Just wait for those nice cool autumn mornings
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Old 03 Aug 2004, 09:33 AM   #5 (permalink)
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When i came down from the hospital last sunday at 3am the car was flying... A seriously quick car in that air temperature... A noticable difference during day time driving
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Old 03 Aug 2004, 10:53 AM   #6 (permalink)
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Temps make a huge difference. Trust me. Supposed to get to abut 100 degrees F here today (about 37 degrees C).

My car runs the best in the 50's F. I do not have stock engine management, though.

Use of higher octane fuel may keep the ECU from pulling as much timing in the heat, but it only does a little.
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Old 03 Aug 2004, 11:33 AM   #7 (permalink)
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Are there any other mods apart from extra instakes that overcome the temperature thing?
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Old 03 Aug 2004, 03:17 PM   #8 (permalink)
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There are a few Gareth that you can do - intercooler water spray and or Water Injection. For little money however I am currently in the throws of ordering myself an intercooler tilt and intercooler splitter mod I will keep you updated when its fitted to let you know how I get on - this will basically allow the intercooler to be far more efficient ( I dont know if any of you have noticed but only about half of the i/c is used when driving along) The splitter diverts air not just onto the back of the i/c (where it goes normally) but also onto the front. And the Intercooler tilt kit should allow my intercooler to be raised from its present position whcih will again make it far more efficient....it has been known that the tilt kit alone can reduce inlet temps by up to 8 degrees which is a lot
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Old 03 Aug 2004, 03:58 PM   #9 (permalink)
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Heat

Hey guys thought I would comment on this topic.
Turbo cars don't like the heat as your aware. I would have to suggest Alcohol injection over the water injection to works better at reducing heat and detonation, or 50/50 water alcohol mix works great.
Another way to acomplish this is to run a low timing ECU program. If the car feels slugish its the ECU pulling Timing and boost from the motor do to detonation.

As far as the O2 sensor- is it wideband/heated???????(if your using Octane booster and don't have a heated O2 it will foul.

I run 17 pounds of boost on street gas with 18 degrees of timing for the street and 20 pounds of boost with 24 degrees of timing with race gas. the Alcohol injection should allow to run between 4 to7 pounds of extra boost with no Knock!!

www.pumpinpistons.com

PS.. have tried intercooler chiller with no measurable results!! works much better with front mount intercoolers
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Old 03 Aug 2004, 04:43 PM   #10 (permalink)
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Here's a bit of kit that can keep the temps down
Saw this installed on a car at PTI motorsport... It had a spray bar on the intercooler, the fuel line went through a cooler and the air intake had a cooler as well. It is a very comprehensive kit. You can even have the NOS vent nozzles with LED's to light it up (As in 2fast 2furious gimmicky bit ) Oh and you can have NOS injection as well
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Old 04 Aug 2004, 06:35 PM   #11 (permalink)
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Still too hot :cry:
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Old 05 Aug 2004, 12:07 AM   #12 (permalink)
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I also use water wetter.

Another thing people do is to run a coolant line to the MAF. Helps a bit in all weather. Please don't ask how though!

I boost my octane a bit by throwing in a gallon or so of Toluene every tank.

(a side note: our AC is being worked on right now. It is 95 degrees F in my house.)
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Old 05 Aug 2004, 12:50 PM   #13 (permalink)
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Quote:
Originally Posted by brizey

(a side note: our AC is being worked on right now. It is 95 degrees F in my house.)
:shock: - I couldnt handle that...
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Old 06 Aug 2004, 03:53 AM   #14 (permalink)
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AC is all better now. 72 degrees F.

And so is my car. Finally got my Cobb AccessPORT working, so I now have a Cobb stage 2 car. Much better. Makes about 0.11 MPa peak boost that tapers to about .085 at redline.
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Old 06 Aug 2004, 06:24 AM   #15 (permalink)
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Hi Folks,
As I have told you it is as hot and humid as hell here at the mo. :evil:
Around 40 deg C. (104F) lately.
had the intercooler water spray on automatic all the time.
can hear the relay clicking away like crazy while on boost. :shock:
I think it's doing the trick though as I have not noticed any drop off in performance

have to top the water tank up regularly though

Cool (I wish)
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