Coolq Posted May 28, 2011 Posted May 28, 2011 under normal driving its fine, but at higher RPMS for long periods ie 100mph/ hard acceleration, i notice that the temp rises... anyone else had this issue? TT manual also how do i solve this issue? Quote
Gonzo12c Posted May 28, 2011 Posted May 28, 2011 i time you need to get a different pulley for you water pump to overdrive it to keep it cool ive read about it before sometimes you get away with it i think Quote
Coolq Posted May 28, 2011 Author Posted May 28, 2011 ordered one. be here in a few days. but was just hoping for some feedback from others, as i know most run just the crank pulley and have no issues. Quote
Smithy Posted May 28, 2011 Posted May 28, 2011 (edited) Yep Gonzo is right, by fitting an overdrive pulley it then spins the water pump at the correct speed to fan as designed. Also as Jap and UK water pump pullies differ in size, might explain it too. Oh and yes it doesn't always effect everyone and tbh there will be a few that don't even notice when it does happen! Anyways though yer engine or tubs was goosed, fitted another one already? smithy Edited May 28, 2011 by Smithy Quote
Guest lee dent Posted May 28, 2011 Posted May 28, 2011 I run an underdrive pulley and boost at 14.5psi. Ive not had any problems, but i have an uprated radiator installed.When driven hard my temp rises about 3c to around 85c on my gauge if thats any help..Lee Quote
Coolq Posted May 28, 2011 Author Posted May 28, 2011 they are mate, but having new ones fitted in about 2 weeks and just got sidetracked with this problem and forgot to ask about it. Quote
vodkashots Posted May 28, 2011 Posted May 28, 2011 Yep Gonzo is right, by fitting an overdrive pulley it then spins the water pump at the correct speed to fan as designed. Also as Jap and UK water pump pullies differ in size, might explain it too. Oh and yes it doesn't always effect everyone and tbh there will be a few that don't even notice when it does happen! Anyways though yer engine or tubs was goosed, fitted another one already? smithy Thats what i thought too? Quote
Coolq Posted May 28, 2011 Author Posted May 28, 2011 they are mate, but having new ones fitted in about 2 weeks and just got sidetracked with this problem and forgot to ask about it. @ smithy and vokdashots Quote
EvoluZion3 Posted May 28, 2011 Posted May 28, 2011 I've run with an underdrive crank pulley for a couple of years and not noticed any problem - I have a Koyo rad installed so perhaps that helps... Quote
Yowser Posted May 28, 2011 Posted May 28, 2011 UK cars have larger water pump pulleys than Imports. If yours is a UK, you can swap to a Jap pulley to speed the pump back up. Quote
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