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Re: Installed new parts, car runs like shit



Gary,
 I just wanted to say thanks for your input to the list.I always find it
helpful and to the point, unbiased even.
                                        Neil
At 06:23 PM 9/5/97 -0600, Gary Morrell wrote:
>On Sep 5, 17:10, Carl Morris wrote:
>> Subject: Re: Installed new parts, car runs like shit
>
>> Pretty wild, I've never heard of anyone with data that consistent.
>> Even when I try to get data at the strip, I have a tough time because
>> my motor's performance changes drastically depending on engine
>> temperature and ambient temperature.  I don't think the 5.0's are
>> as sensitive to temperature as my SVO is.
>
>Intercoolers will do this. My brother road races a '93 RX7 TT, the first
lap is
>banzi, but once the intercooler gets warm, the performance falls off
>noticeably.
>
>> Speaking of which, I don't know what to conclude about my stock
>> vs Tbird intercooler testing.  I didn't seem to gain anything,
>> even when compared to previous nights results at the exact same
>> temperature and 60' time.
>
>Eight or nine years ago, I had a conversation with one of SVO's engine
>designers (Tom Hutchison I believe...) and asked him why SVO hadn't done an
>intercooler in front of the radiator. He said they tried it, but the pumping
>losses due to the extra plumbing undid any gains from the cooler charge. My
>fluid mechanics isn't all that current, but I recall that given constant
>diameter, smooth wall pipe, each 90 degree bend is the equivalent of several
>feet of straight pipe. That means the T-Bird intercooler setup adds many feet
>of pipe between the turbo and the throttle body.
>
>The SVO intercooler may not be in the best location thermally, but its
>optimally placed for fluid flow.
>
>I've run across some SAE papers about this sort of thing, I'll try to locate
>them.
>
>Gary Morrell
>gmorrell@ford.com
>
>
>