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Some quick datalog info, opinions?

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Old 02-14-2011, 02:28 PM
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996 Guards red / 2008 Hayabusa / 2004 E55 AMG
Some quick datalog info, opinions?
Over the last few days the car has felt ever so slightly down on power (yes I can search, yes I know this MIGHT be an IC pump).


Ambient temp - 70°F
IAT's - 145°F under full throttle but quickly return to the 88-110°F range
Timing was -21 at WOT with occasional spikes of -31
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Old 02-14-2011, 03:23 PM
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cornfed gtr and m3
need more info but it sounds like your pump is on its way out. What is your current cooling setup? Also, 88-110 is a huge gap. If your iats were 40 over just cruising, definitely the pump is out. DO you have a tune on the car? When you say wot...what speed did you run up to? If you ran up to say 120mph, and your timing fluxuated between 21 and 31 that is a timebomb waiting to explode.
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Old 02-14-2011, 03:41 PM
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996 Guards red / 2008 Hayabusa / 2004 E55 AMG
The pulls were 60-100mph, repeated and consistent. The mods are Eurocharged 172mm pulley and box tune, stock cooling.
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Old 02-14-2011, 03:49 PM
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Hmmm. I would try a new pump, but maybe your pulley and tune are too much for stock pump. Might need a HE also.

Can you post a log so we can see what your timing does during a pull?
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Old 02-14-2011, 03:49 PM
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whats mods do you have. 145F at WOT seems normal. becuase if ambient is 70F then you IATs at crusing are about 85 to 90.
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Old 02-14-2011, 03:50 PM
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2003 W211 E55, 2003 W220 S600
that is normal for a stock cooling system. your pump is working fine. get a bigger h/e and pump
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Old 02-14-2011, 04:02 PM
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996 Guards red / 2008 Hayabusa / 2004 E55 AMG
Shardul, whats a good source for the bosch? From SEARCHING it appears it is as good as the johnson.
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Old 02-14-2011, 04:22 PM
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2003 W211 E55, 2003 W220 S600
Originally Posted by Zmydust
Shardul, whats a good source for the bosch? From SEARCHING it appears it is as good as the johnson.
any parts website for the bosch.
i would get a cm30 or meziere wp136.
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Old 02-14-2011, 05:49 PM
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996 Guards red / 2008 Hayabusa / 2004 E55 AMG
In that case, I'll get a cm30. As for heat exchangers, which of these two would you recommend?


http://cgi.ebay.com/ebaymotors/Alumi...-Intercooler-/ 190355374159?pt=Motors_Car_Truck_Parts_ Accessories&hash=item2c5210804f http://cgi.ebay.com/ebaymotors/UNIVE...r_Truck_Parts_ Accessories&hash=item2a0df768e5
Last edited by Zmydust; 02-14-2011 at 07:15 PM.
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Old 02-14-2011, 05:50 PM
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996 Guards red / 2008 Hayabusa / 2004 E55 AMG
Originally Posted by 930chas
Hmmm. I would try a new pump, but maybe your pulley and tune are too much for stock pump. Might need a HE also.

Can you post a log so we can see what your timing does during a pull?
I just grabbed a Matco scanner from work, I don't believe it logs
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Old 02-14-2011, 05:51 PM
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A new pump sure couldn't hurt ya know, but with NO extra heat exchanger, that's not to shabby temp wise.
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Old 02-14-2011, 06:07 PM
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My car went to 140* the other night after 3 40-100mph runs and it's bone stock with a new pump. I think the OP's numbers are fine.
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