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displaying posts 1 to 7 of 7
| Author | Subject: Lighten Flywheel & Valve Springs |
 speedo306
Regular  Location: Trinidad & Tobago Registered: 05 Apr 2008 Posts: 478 Status: Offline |
Post #1
Hey mates,Any idea when fitting a lighten flywheel and crank pulley do you have to do any work on the crankshaft. I just want an idea of the steps to take when fitting these parts so that I do the right thing. Can piper double valve springs be fitted to my gti6 head? What will be difference as compared to the standard springs. Thanks. ________________________________________ RJ |
 Posted 24th Nov 2012 at 03:15
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #2
I have a lightened flywheel and lightened crank pulley and both are fine on a standard crank. As for valve springs, you don't need to upgrade them. I'm running over 450bhp on standard valve springs.  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 24th Nov 2012 at 07:16
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speedo306
Regular Location: Trinidad & Tobago Registered: 05 Apr 2008 Posts: 478 Status: Offline |
Post #3
thanks mate________________________________________ RJ |
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Posted 24th Nov 2012 at 12:05
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daveyboy
aka Jim Davey  Location: Southampton Registered: 01 Oct 2007 Posts: 8,648 Status: Offline |
Post #4
Depends what you want to rev to, pistons and rods are the weak link before valve springs though.________________________________________ R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.Some of my services: (See my for sale threads) Engine mount/chassis repair Solid Beam Mounts BACK IN PRODUCTION Harness bars |
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Posted 24th Nov 2012 at 12:13
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eliotrw
Seasoned Pro  Location: Southwark Registered: 18 Jul 2010 Posts: 4,864 Status: Offline |
Post #5
What he said.I think the standard ones are doubles anywho The only thing you would even really NEED to consider would be the hydraulic lifters But only if you are aiming for a high rev limit say above 8k in a track day/ race engine. All the High boost lot dont bother as its only a consideration if you are hitting that all the time. ________________________________________ Ex- Phase 3 China GTi-6 T-Reg |
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Posted 24th Nov 2012 at 12:14
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #6
Yeah, if you're using over 8k on a regular basis then you should move to solid lifters really. The standard valve springs are doubles, yes. ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 24th Nov 2012 at 12:37
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miles
Seasoned Pro  Location: Ringwood Registered: 28 Dec 2002 Posts: 3,433 Status: Offline |
Post #7
Springs are suited to cam specs and not the other way around________________________________________ 306 Rallye Sptint/Race Car, 205 CTI 1.9 8v to name a fewRoad, Track and Race/Rally car preparation to your personal requirements, Full Workshop & Diagnostic Facilities New and Second parts, from Plugs to Turbo's We now also carry out Routine Servicing www.pugracing.com & FB Page, https://www.facebook.com/PugRacing Ebay; http://stores.ebay.co.uk/Pug-Racing-Shop 2012/2013/2014/2019 Class Winners at Gurston Down Speed Hillclimb & Joint overall, Class record too along the way, |
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Posted 24th Nov 2012 at 17:46
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