GaryD1971 Posted March 23, 2021 Posted March 23, 2021 All loaded up ready for the trip over to Watton in deepest, darkest Norfolk tomorrow morning! Oil level - checked. Water level - checked. Tyre pressures - checked. Tool roll - check. Chocolate biscuits for the Emerald crew - check. Sarnies for me - check. Phone fully charged for pics and film - check. Update tomorrow evening! 4 Quote
Nic Chase (NICO) - Shropshire & Mid-Wales AO Posted March 24, 2021 Posted March 24, 2021 Don’t forget, fill petrol tank 🙄 Quote
GaryD1971 Posted March 24, 2021 Author Posted March 24, 2021 8 minutes ago, Nic (NICO) - Shropshire and Mid-Wales AO said: Don’t forget, fill petrol tank 🙄 Oh yeah, forgot to add that! Petrol tank full - check! Extra cans of fuel - check! 😁 Quote
TableLeg Posted March 24, 2021 Posted March 24, 2021 Hope it goes well Gary, Say hello to John for me, I'll be returning there too before too long hopefully. 1 Quote
Mole Posted March 24, 2021 Posted March 24, 2021 Hope you got on ok..need to get mine over there soon... 1 Quote
GaryD1971 Posted March 24, 2021 Author Posted March 24, 2021 Thanks all for the advice/well wishes. The results are in... Now having me tea Will update in half an hour... 😁 3 Quote
GaryD1971 Posted March 24, 2021 Author Posted March 24, 2021 This was the penultimate power run, but unfortunately the remote gear linkage to the type 9 came loose and started bouncing of the propshaft! Not a nice noise at 6500rpm... Funnily enough Dave W. didn't want to do any more runs after that! 😂 Didn't get chance to do the final tweaking on the last run, but Dave said to bring it back when I've got it fixed and he'll finish it off. Quote
GaryD1971 Posted March 24, 2021 Author Posted March 24, 2021 Looks a bit lost in there, doesn't it... 🤣 4 Quote
DamperMan Posted March 25, 2021 Posted March 25, 2021 102 wheels and 142 calculated at the flywheel. That feels like a lot of losses, mine was similar also with type 9 and Sierra diff. I can’t help thinking we spend loads on BHP but waste it. If only we could reduce losses it more cheaply than create power. Quote
TableLeg Posted March 25, 2021 Posted March 25, 2021 Losses at the wheels can be caused by a number of factors such as tyre pattern type, pressure, torque of the engine and often the straps securing the car down. All these can have a big impact on the drag on the coast down. I started with about 50bhp and ended up with over 90bhp losses just due to wheelspin and the tightness of the straps trying to keep the wheels on the rollers. Take any losses at the wheels with a pinch of salt. 1 Quote
Ian Kinder (Bagpuss) - Joint Peak District AO Posted March 25, 2021 Posted March 25, 2021 Also if you think that the losses are mainly heat, 30-40 BHP (22-29kW), it's an awful lot of heat to dissipate! 3 Quote
Dave Eastwood (Gadgetman) - Club Chairman Posted March 25, 2021 Posted March 25, 2021 22 minutes ago, DamperMan said: If only we could reduce losses it more cheaply than create power. We sort of can, but it comes at a different cost! Obviously, we could change to completely different more modern gearboxes, presumably with fewer losses, but then we may have ratio compromises. Or we can change to modified versions of Type 9's and get spot on ratios. Some of these uprated boxes do also have bearing and oilway mods that will help (a little) to reduces losses. But the main way we can get the right ratios and get good reductions in losses is to go straight cut; the change from helical to straight cut gear sets significantly reduces the friction as the gears mesh, (there's less metal in contact with metal, at any given time. - ignoring the oil in there). However, you've then got the noise levels to deal with! Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.