Bowie69 Posted March 22, 2020 Share Posted March 22, 2020 36 minutes ago, Gazzar said: Batteries are rubbish. If this is solved (hold more, fill faster, last longer, weigh less (X10)) then they are better than petrol What you are describing here is a hydrogen fuel cell vehicle, one I am certain will be a large part of the fleet going forward. 4 minutes to fill and 400 mile range easily achievable, just need the infrastructure. 1 Quote Link to comment Share on other sites More sharing options...
Landrover17H Posted March 23, 2020 Share Posted March 23, 2020 (edited) You'll not be needing it quite yet, but be aware I have a 3D ignition map. From Roland I filched it to set-up the liquid curve for 123Ignition. Roland used to offer a Megajolt type 3D set-up, he was able to supply. It'll save you a heap of rolling-road time. Sadly he doesn't have anything for gas, so it's not much use to me. Glad to let you have it. Every man and his dog does the V8. Unlike the V8, there won't be a heap of prior maps for the taking. Sorry, can't help you with the injection side. 123ignition has an inbuilt rolling-road stopwatch function. You can load two curves to test, and flip curve-to-curve; hot-test as your drive. I'm pretty sure I have it spot-on. Or as spot-on as a 2D dizzy will allow anyway, it'll never be Megajolt, and that's next. Edited March 23, 2020 by Landrover17H Quote Link to comment Share on other sites More sharing options...
Landrover17H Posted March 23, 2020 Share Posted March 23, 2020 (edited) Here you are... less value to you, I've added vacuum calculations in green. For the 2.25, your extra 250cc might need 1-2 degrees of advance (or not) , but your map would be parallel to this. Edited March 23, 2020 by Landrover17H 1 Quote Link to comment Share on other sites More sharing options...
Gazzar Posted March 23, 2020 Author Share Posted March 23, 2020 53 minutes ago, Landrover17H said: Here you are... less value to you, I've added vacuum calculations in green. For the 2.25, your extra 250cc might need 1-2 degrees of advance (or not) , but your map would be parallel to this. Thanks! I only vaguely know what this means, but I expect I'll be quite knowledgeable by the time this is built. Cool, looking forward to this. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted March 23, 2020 Share Posted March 23, 2020 1 hour ago, Gazzar said: I only vaguely know what this means, but I expect I'll be quite knowledgeable by the time this is built. Load on the left, RPM along the bottom. You'll need to jigger the numbers into MS as it uses MAP (Vacuum) vs RPM for its map but this is certainly a very useful starting point. Quote Link to comment Share on other sites More sharing options...
Landrover17H Posted March 23, 2020 Share Posted March 23, 2020 LOAD can be interpreted as vacuum or throttle position, either way your map will finish very similar. From what we see so far, can't see you struggling. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted March 23, 2020 Share Posted March 23, 2020 56 minutes ago, Landrover17H said: LOAD can be interpreted as vacuum or throttle position, either way your map will finish very similar. From what we see so far, can't see you struggling. Vacuum, throttle position, and engine load are related but not the same, you couldn't paste that map into MS without some fiddling. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted March 23, 2020 Share Posted March 23, 2020 Exactly.... That grid is for a TPS based system, MS can use that, but far better to use MAP. Quote Link to comment Share on other sites More sharing options...
Landrover17H Posted March 23, 2020 Share Posted March 23, 2020 (edited) Yes, Roland was using Map2000 ignition software, likely with Omem 500 which uses TPS & MAP for Load. Wiser than me will know, I think... Megajolt/Squirt use one or other. Edited March 23, 2020 by Landrover17H Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted March 23, 2020 Share Posted March 23, 2020 OMEM manual says it likely uses TPS for load unless it's boosted. MS uses MAP, it only uses TPS as a throttle pump. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted March 23, 2020 Author Share Posted March 23, 2020 Ummmm, okay..... I think I'll come back to this topic, hopefully soon. I need to buy another DTI to set up the cam. Quote Link to comment Share on other sites More sharing options...
Ex Member Posted March 23, 2020 Share Posted March 23, 2020 (edited) On 3/22/2020 at 8:32 AM, Gazzar said: EVs are: Simpler. No gearbox, only a transfer box. EVs have a gearbox. It is just single speed. You need around 3:1 more than the diffs for road use. 2 or 3 times more for off road use. Edited March 23, 2020 by Red90 Quote Link to comment Share on other sites More sharing options...
Gazzar Posted March 23, 2020 Author Share Posted March 23, 2020 Yep, a one tonne transfer box! Quote Link to comment Share on other sites More sharing options...
Ex Member Posted March 23, 2020 Share Posted March 23, 2020 26 minutes ago, Gazzar said: Yep, a one tonne transfer box! That does not help. You need 10:1 total gearing on road and 30:1 off road. This means you need a single speed 3:1 gearbox somewhere in addition to the transfer case and differential gearing. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted March 23, 2020 Author Share Posted March 23, 2020 Doesn't it depend on how the electric motor is wound? And a motor developed for automotive use would have a reducing gear built in, similar to the earlier Tesla motor units. Quote Link to comment Share on other sites More sharing options...
Ex Member Posted March 23, 2020 Share Posted March 23, 2020 11 minutes ago, Gazzar said: Doesn't it depend on how the electric motor is wound? And a motor developed for automotive use would have a reducing gear built in, similar to the earlier Tesla motor units. Yes, but automotive motors are designed for more or less the same speed range. Designing for highest possible speeds reduces the amperage demands and the sizing of the motor and its wiring. In a car, you design for the smallest motor size. If it has gearing built in, it is not a motor. It is a gearmotor (motor and gearbox unit). None that I've seen for a retrofit into a car are combination units. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted March 23, 2020 Author Share Posted March 23, 2020 Okay, cool. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted March 24, 2020 Author Share Posted March 24, 2020 Would 10mm alloy plate be sufficiently think to hold a stud, using helicoils? To hold the throttle body and a 15mm block of insulator. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted March 24, 2020 Share Posted March 24, 2020 I'd think so, what size bolt is it? For ali, 2*diameter is recommended. An insert will help here a lot of course. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted March 24, 2020 Author Share Posted March 24, 2020 M6 stud, in a helicoil. The hole on the flange is 6.5mm. Ish. The helicoil is probably less than 10mm, so there's little point in being much thicker than that, I'd have thought. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted March 24, 2020 Share Posted March 24, 2020 Sounds alright then.... there's not much harm in making it deeper if you had the material? Quote Link to comment Share on other sites More sharing options...
Gazzar Posted March 24, 2020 Author Share Posted March 24, 2020 I should have clearance to the bonnet I suppose. Is your lightweight petrol? Quote Link to comment Share on other sites More sharing options...
landroversforever Posted March 24, 2020 Share Posted March 24, 2020 10mm thick and an M6 is plenty IMO. Quote Link to comment Share on other sites More sharing options...
Gazzar Posted March 24, 2020 Author Share Posted March 24, 2020 I'll do some measuring after work. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted March 24, 2020 Share Posted March 24, 2020 No longer have a lightweight :( Quote Link to comment Share on other sites More sharing options...
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