Dubcharged 0 Posted February 25, 2003 Hi guys What are you losing from your flywheel to your wheels? 2 wheel drive systems lose around 15%, my 4 wheel drive loses 26%. Anyone got dyno's to verify? Thanks :D Quote Share this post Link to post Share on other sites
Jim 2 Posted February 25, 2003 I have a dyno plot at home.. will try and remeber to post some details up here when I get back later this evening :) Quote Share this post Link to post Share on other sites
Banana Man 0 Posted February 25, 2003 My dyno plot for me g60 was 202bhp @ the flywheel and something like 183 @ the wheels!!!! Quote Share this post Link to post Share on other sites
Dubcharged 0 Posted February 25, 2003 BANANA MAN: That sounds tooo efficient!! 10% loss. Wow :D where did you do the dyno? Quote Share this post Link to post Share on other sites
Banana Man 0 Posted February 25, 2003 Jabba Sport last year but since then I think the power has rapidly dropped as the car seems to run very rich ie: 3.5% so I think I'll be changing the chip shortly to see if that makes any difference!! Quote Share this post Link to post Share on other sites
MADDUB 0 Posted February 25, 2003 my old g60 was 160 @ wheels not sure about fly and 202 lb me new motor is 220 at fly 180 @ wheels with 245 lb for now :lol: :lol: :lol: :lol: :lol: :lol: soon to be a lot more Quote Share this post Link to post Share on other sites
Dubcharged 0 Posted February 25, 2003 MADDUB: whats your new motor?? Sounds "interesting" 8) Do you guys remember which gear the dyno was done in? Quote Share this post Link to post Share on other sites
Joe M 0 Posted February 25, 2003 Hi guys What are you losing from your flywheel to your wheels? 2 wheel drive systems lose around 15%, my 4 wheel drive loses 26%. Anyone got dyno's to verify? Thanks :D Just had a thought about this, once on the road how much would a front drive car loose on top of this due to rear wheel drag. I assume this is already taken into account on 4wd losses. Quote Share this post Link to post Share on other sites
MADDUB 0 Posted February 26, 2003 they do it in 4th me new motor is a corrado 20V TURBO with 6 speed quaife box and LSD :roll: Quote Share this post Link to post Share on other sites
vr6storm 0 Posted February 26, 2003 just looked out my last set of dyno figures when i got my milltek fitted by star-performance in september last year anyway heres the breakdown of my figures(pre-milltek figures in brackets.....march 2002's rolling-road day figs approx 43k btw) Milltek figures taken at approx 48k miles Norm power...........193bhp(187.5) Engine output.........189bhp(183) Wheel output..........143.5bhp(145.5) Drag output............45.5bhp(37.5) Torque...................186lbf-ft(183) Max power @ 113mph or 5930rpm(110mph/5790rpm) Max torque @ 81mph or 4270(85mph/4450rpm) so going by those the vr6 loses a bit more than just 15% :cry: though i've also been told that as my vr6 is fairly low miles and has had mainly city use that the engine is still relatively "tight" Quote Share this post Link to post Share on other sites
Scott 0 Posted February 26, 2003 Quote: though i've also been told that as my vr6 is fairly low miles and has had mainly city use that the engine is still relatively "tight" Thats very true mate - I visited a friend down south who has a Classic green Storm with about 70k on the clock and when he drove mine - straight away he said mine felt faster and more reponsive as it revs up faster.. we agreed this was just due to mine having more miles on it..... I think the old age verse that comes up often - that VW's dont really come into their own till 100k miles is true to some extent!... once I got to around 100k miles my old 16V really seem to come to life....... Quote Share this post Link to post Share on other sites
Dubcharged 0 Posted February 26, 2003 Interesting, thanks guys! Anyone else got dyno figures? Quote Share this post Link to post Share on other sites
jmk 0 Posted February 26, 2003 VR6Storm, What do you think of the Miltek exhaust? I’ve got a Storm whose exhaust is getting towards the end of its’ useful life and a Miltek replacement was recommended. What did it cost? At a constant smooth throttle is it any louder than normal – I like relaxed and quiet motorway miles so I can appreciate my hi-fi? Under hard acceleration does it sound a little more interesting? Quote Share this post Link to post Share on other sites
Pau1 0 Posted February 26, 2003 This dyno was taken a year and a half ago right after my Stage 4 rebuild. The only mods I had at the time were the Chip (UnKnown), pulley, Stage 4 charger and Miltek exhaust. I've got less power at the wheels than you Roddy in this read out. And a massive 52.5 BHP loss through the transmission. Does anybody know how I can free some of this lost power up? :( I'll see what I've got now at Star Performance in a couple of weeks. Norm power...........193.3bhp Engine output.........182.5bhp Wheel output..........130bhp Drag output............52.5bhp Torque...................205lbf-ft Pau1 Quote Share this post Link to post Share on other sites
vr6storm 0 Posted February 26, 2003 VR6Storm, What do you think of the Miltek exhaust? I’ve got a Storm whose exhaust is getting towards the end of its’ useful life and a Miltek replacement was recommended. What did it cost? At a constant smooth throttle is it any louder than normal – I like relaxed and quiet motorway miles so I can appreciate my hi-fi? Under hard acceleration does it sound a little more interesting? the milltek is a good quality piece though i do have a small problem just lately where its started banging/knocking against the rear bumper(i think) though hopefully getting that looked at/sorted at star-performance next month as for price it worked out at approx £340 fitted(cat-back) and all in....the main thing i noticed was the deeper burble at idle which i liked and when you hit 3+k revs it has a nice not too loud roar as i've mentioned earlier the only problem with it seems to be this knock i've started getting....though not all the time also it has made a noticable difference to my power figures too hth Quote Share this post Link to post Share on other sites
vr6storm 0 Posted February 26, 2003 This dyno was taken a year and a half ago right after my Stage 4 rebuild. The only mods I had at the time were the Chip (UnKnown), pulley, Stage 4 charger and Miltek exhaust. I've got less power at the wheels than you Roddy in this read out. And a massive 52.5 BHP loss through the transmission. Does anybody know how I can free some of this lost power up? :( I'll see what I've got now at Star Performance in a couple of weeks. Norm power...........193.3bhp Engine output.........182.5bhp Wheel output..........130bhp Drag output............52.5bhp Torque...................205lbf-ft Pau1 maybe your bigger alloys and your dodgy clutch release bearing contributed to your transmission losses :? as i know my tyres were just replaced 2 months before the the milltek was fitted and thats maybe why my drag output increased :? Quote Share this post Link to post Share on other sites
Pau1 0 Posted February 26, 2003 Yeah, could of been the clutch release bearing. I'd forgoten about that! Might have to borrow Dubster82's 16's for Star next time. :wink: Quote Share this post Link to post Share on other sites
vr6storm 0 Posted February 26, 2003 Yeah, could of been the clutch release bearing. I'd forgoten about that! Might have to borrow Dubster82's 16's for Star next time. :wink: dubster82 won't be taking his C down to star next month.....he was in a crash(not in his thankfully) and is now nursing a broken collar bone also just had glen on the phone earlier on and he's booked my C into AmD for a custom re-chip so hopefully i'll be hitting the magic 200bhp mark after that.....though will get a set of figures from star-p to see how much of a difference their rolling-road has to AmD's Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted March 5, 2003 Here's my plot info from my Stealth run on 26.02.03 Maximum power speed - 5672 rpm (109.1 mph in gear used - 4th) Power at flywheel (Corrected*) - 200.0 bhp (DIN 70020) Power at flywheel (measured) - 195.7 bhp Power at wheels - 147.4 bhp Power loss - 48.3 bhp Maximum torque speed - 4544 rpm (87.4 mph in gear used - 4th) Maximum engine torque - 192.3 lb/ft Maxium road speed reached in test - 119.8 mph Maximum engine speed reached in test - 6228 rpm Min ambient temperature - 20 deg C Max ambient temperature - 24 deg C Barometric pressure - 998mb * - Corrected means adjusting figure to take into account temperature and barometric pressure. This is part of DIN 70020 dyno testing. Cheers Kev Quote Share this post Link to post Share on other sites
