Clay Head Posted May 16, 2003 Share Posted May 16, 2003 I am going to fit a nice newly purchased Aloy head to my xflow which already has Aloy bell housing. This will probably make it lighter than a standard K. Now, my question is about the suspension set-up. I have standard pre 96 suspension but wondered whether the K set-up runs lower spring rates. I also wondered if I might need to go with an adjustable height kit to get the balance of the the car right. Anybody have any views on this and the way forward as I am a bit of a suspension novice? Link to comment Share on other sites More sharing options...
John Howe Posted May 16, 2003 Share Posted May 16, 2003 Clay, think you might be a little out regarding weight of K series engine. Designed like a plastic egg box, in ali and twice as light. ... doesn't the X/flow have a cast block? JH Deliveries by Saffron, the yellow 222bhp Sausage delivery machine Link to comment Share on other sites More sharing options...
Nick M Posted May 16, 2003 Share Posted May 16, 2003 I have to agree with John - I'm fairly certain that the K is quite a bit lighter than the Xflow. I swapped my Xflow for a 1.6 16v Vauxhall engine which was substantially easier to lug around than the Xflow. From speaking to SBD it seems that you can get the 1.6 engine down to a similar weight to the K series (even though it has a cast iron block vs. an aluminium one) so from that you can conclude that the Xflow is heavier than the K. Link to comment Share on other sites More sharing options...
Joe 90 Posted May 16, 2003 Share Posted May 16, 2003 The consensus is that the K weighs 100kg, the XFlow about 125kg. The weight saving of an alloy head will be 12-15kg, so you will be getting close. This represents maybe 2% of the vehicle weight, and doesn't call for spring changes (even good springs will have 5% tolerance). Upgradeitis ward, awaiting open wallet surgery. 100,016 miles Link to comment Share on other sites More sharing options...
Nick M Posted May 16, 2003 Share Posted May 16, 2003 The weight saving of an alloy head will be 12-15kg That seems like an awful lot !! Not disputing it, just genuinely surprised !! Link to comment Share on other sites More sharing options...
Jason Plato Posted May 16, 2003 Share Posted May 16, 2003 Weighed a 1800 K last week - 87Kg with fully assembled block , head , Throttle bodies , alternator , dry sump pump , clutch , flywheel , sump pan , remainng oil + water . Dave Link to comment Share on other sites More sharing options...
Luke Beaumont Posted May 16, 2003 Share Posted May 16, 2003 The head is particulary light since it's free from the burden of supporting 16 valves Link to comment Share on other sites More sharing options...
cdg Posted May 17, 2003 Share Posted May 17, 2003 I hope you're going for the monster offset-valve version! Link to comment Share on other sites More sharing options...
Clay Head Posted May 17, 2003 Author Share Posted May 17, 2003 I didn't realise the K was that light. I had it at around 100-105 Kg and x flow at about 115 -120 from the "weight of things" sheet that Speedy Steve did. Chris - its a brand new head + valves that has not been used but is not the offset version. Its at a great price so I'm only really getting it for the weight saving. It seems like a relatively cheap way to lose 15K compared to say carbon bits, new wheels, etc Link to comment Share on other sites More sharing options...
Tight fart Posted May 17, 2003 Share Posted May 17, 2003 Zetec (2.0lt) with clutch alternator inj/sys and oil 118kg cast bellhousing inc spacer 12kg alloy bellhousing 7lb (3kg?) Battery 8kg (thought that would be more) gearbox 32kg 5 speed T9 Hayabusa engine gearbox complete 82kgs (from other thread) SLR for sale T.F@O.F. www.griptv.com Edited by - r phillips on 17 May 2003 11:28:56 Link to comment Share on other sites More sharing options...
cdg Posted May 17, 2003 Share Posted May 17, 2003 My all steel X/Flow was 108kg complete with dry sump pump, clutch, and carbs. Chris. Link to comment Share on other sites More sharing options...
Ken Numsaki Posted May 18, 2003 Share Posted May 18, 2003 Hi All. Cray, If you get the Alli head and bellhousing, you will be get about 15.5Kg weight reduction. (Alli head-8.9Kg, Bell-6.65Kg non spacer type) It is only? about 2% weight reduction of vehicle, but I think it dose not need for change the dumper setting. Reducing the Z around Inertia, maybe you can get the quick handling! By the way I have a same weight reduction project now. 😬 Parts list as below Alloy head from Dave bean (Pirce manifolds inc. made) -8.9Kg Alloy Flywheel from DB(Fidanza Eng. CO, Ringgear110Teeth) -2.36Kg Alloy Clutch cover Tilton 7.25 in -2.84Kg Starter Lucas T11 to Reduction type T9 -0.9Kg Alloy Bellhousing from Raceline (SPC cast non spacer for short inputshaft T9) -6.65Kg Alloy Main Gearcase from Quaife -4.5Kg Then I get 26Kg weight and 4000$+800ponds money reduction! It's heavy for me. Cray , Please inform to me about alli head modification. I think alli head needs valve spring pocket depth milling for spring as such like VS7 of Kentcams ( in case of 1.69 ratio). It need 2 or 3 mm milling maybe, but I worry about cast wall thickness. Go light head Ken Link to comment Share on other sites More sharing options...
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