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Thread: a 240SX SR20VE-T from Germany

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Posts: 101-110 of 168
2011-07-06 18:45:38
#101
...as i already stated, i am competing on a standing mile event at saturday....

....knowing that i will loose against allot of supras, hardcore audis....


....i will install an onboard cam :-)
2011-07-06 20:10:28
#102
Hi

you should switch your intake cam at 5600rpm.
2011-07-06 20:33:44
#103
Hello my chief mechanic :-)

....and you should think about how to improve the water-cooling....we are running a 350hp-cooling on a 500hp engine.....not good....
2011-07-06 20:35:46
#104
electric water pump it!.
2011-07-07 20:06:20
#105
Hi

an electric waterpump will not improve the cooling efficiency...
2011-07-08 03:10:18
#106
.............................
Originally Posted by ronny
Hi

an electric waterpump will not improve the cooling efficiency...


It should help with those long RPM pulls where the factory water pump starts cavitation. You could prob put a big pulley to slow the factory water pump down. I have seen this on the Scorch S15, They run a massive water pump pulley.

2011-07-08 07:20:04
#107
Hi

thanks for your input.
Do you have an idea at what RPM cavitation effects start?

We slowed down the Waterpump a little bit with a smaller crank pulley.

Cooling liquid temp rises at relative low rpm, i would say 5500rpm and higher.
2011-07-08 07:29:47
#108
Originally Posted by ronny
Hi

an electric waterpump will not improve the cooling efficiency...


Yes it will IV had to block off half my standard Rad to prevent overcooling the engine

Sent from my X10i using my penis
2011-07-08 08:16:37
#109
.............................
Originally Posted by ronny
Hi

thanks for your input.
Do you have an idea at what RPM cavitation effects start?

We slowed down the Waterpump a little bit with a smaller crank pulley.

Cooling liquid temp rises at relative low rpm, i would say 5500rpm and higher.


I'm not 100% sure. I would have to dig up the info from the SE-R road race cars. It could be 7000 or 7500 rpm, I know my friend had problem with his SR20VE racing around a track. He would hit stay in the really high revs @ 9k rpms.
2011-07-08 11:27:37
#110
@BlueRB: Very helpful input, i was not sure about the rumor with the "cavitation effect" of the stock pump. Everybody has heard about it but nobody really proved it. The Scorch Silvia was the reason for me to start going VE-T. I like track racing. If you could get some concrete info from the road racing cars that would be great!!!! On the other hand i donĀ“t have problems with my track-spec-DET-Silvia with its 7.700RPM redline.

What we will do is first "channeling" the air between the IC and the radiator, so that the air has to go through the radiator without any chance to pass by...

after that we can play with the water-pump-pulley.


tomorrow we will run the standing mile, standing mile, standing mile, hooraaayyy :-)
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