ET / MPH Gains from EWP and Vac Pump?
12-03-2002, 03:47 PM
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ET / MPH Gains from EWP and Vac Pump? Has anyone done any testing before and after these mods? I have neither of them and wondering what they would give me? I just did the !power steering mod and really didn't see much of anything.
Thanks,
Mikey
Thanks,
Mikey
12-03-2002, 09:32 PM
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Re: ET / MPH Gains from EWP and Vac Pump? I just switched (a few weeks ago) over to an electric water pump drive. It did help a little, but I didn't do any true "back to back" testing with it, so I couldn't say how much for sure. Rough guess on my would be .06-.07sec and ~1mph or so.
It works pretty well, but a real electric water pump (like the Meziere) would work better. I can watch the coolant get pretty warm during a blast down the track, but it does cool it down quickly. It's pretty neat to go back to the pits, shut the car off (leaving the fans/water pump on), and watch the coolant temp. plummet in a hurry. FWIW, the Meziere pump moves about 35gpm, while the electric drive I rigged up on the stock pump moves just about idle speed.
Belt driven racing vac. pump is one for next season... <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
It works pretty well, but a real electric water pump (like the Meziere) would work better. I can watch the coolant get pretty warm during a blast down the track, but it does cool it down quickly. It's pretty neat to go back to the pits, shut the car off (leaving the fans/water pump on), and watch the coolant temp. plummet in a hurry. FWIW, the Meziere pump moves about 35gpm, while the electric drive I rigged up on the stock pump moves just about idle speed.
Belt driven racing vac. pump is one for next season... <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
12-03-2002, 10:43 PM
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Re: ET / MPH Gains from EWP and Vac Pump? George, forgive my ignorance, but how do you do that little trick (turn off the motor, while letting the cooling system keep running)?
YES!!! I'm a fanatic now!!!!!!!!!! WOOOOOOOOOOOOOHOOOOOOOOOO!!!!! <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
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<small>[ December 03, 2002, 10:47 PM: Message edited by: RAGEman ]</small>
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<small>[ December 03, 2002, 10:47 PM: Message edited by: RAGEman ]</small>
12-03-2002, 11:38 PM
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Re: ET / MPH Gains from EWP and Vac Pump? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by RAGEman:
<strong>George, forgive my ignorance, but how do you do that little trick (turn off the motor, while letting the cooling system keep running)?
YES!!! I'm a fanatic now!!!!!!!!!! WOOOOOOOOOOOOOHOOOOOOOOOO!!!!! <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
"For he's a jolly good fellow, for he's a jolly good fellow, for he's a jolly good fellooooooooooooooooooooooooooooooooooow....which nobody can deny!!!"</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Easy, just wire them into your accessories so they come on when the key is turned. This is not a good idea with the Dynabat and other drag batteries!
<strong>George, forgive my ignorance, but how do you do that little trick (turn off the motor, while letting the cooling system keep running)?
YES!!! I'm a fanatic now!!!!!!!!!! WOOOOOOOOOOOOOHOOOOOOOOOO!!!!! <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
"For he's a jolly good fellow, for he's a jolly good fellow, for he's a jolly good fellooooooooooooooooooooooooooooooooooow....which nobody can deny!!!"</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Easy, just wire them into your accessories so they come on when the key is turned. This is not a good idea with the Dynabat and other drag batteries!
12-04-2002, 06:49 AM
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Re: ET / MPH Gains from EWP and Vac Pump? Use a generator and battery charger in the pits. That is what I do. Keep the pump running and the fans with it on a charger.
12-04-2002, 06:54 AM
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Re: ET / MPH Gains from EWP and Vac Pump? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Fenris Ulf:
Easy, just wire them into your accessories so they come on when the key is turned. </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The EWP should come on when the ignition is turned on. I have my LT1's EWP wired through a switch (well, a relay/switch), so I can turn it off when using LT1Edit... Don't want to take any chances of killing the battery while programming. Of course, I *have* forgotten to turn it on before. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> I do have an indicator LED to help remind me that the pump is off (or if the fuse pops). <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> I also have a manual fan switch on my LT1 car, to do exactly what George describes.
-Andrew
Easy, just wire them into your accessories so they come on when the key is turned. </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The EWP should come on when the ignition is turned on. I have my LT1's EWP wired through a switch (well, a relay/switch), so I can turn it off when using LT1Edit... Don't want to take any chances of killing the battery while programming. Of course, I *have* forgotten to turn it on before. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> I do have an indicator LED to help remind me that the pump is off (or if the fuse pops). <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> I also have a manual fan switch on my LT1 car, to do exactly what George describes.
-Andrew
