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  • Davezj's Avatar
    Yesterday, 06:02 PM
    here is a video on the subject i am not say it is the be all and end all of runner length theory and testing but it is the start of a conversation
    0 replies | 12 view(s)
  • Davezj's Avatar
    Yesterday, 05:41 PM
    here is a bit of a manifold runner length debate in a video. actually i dont want to do it here i will start its own thread about it.
    71 replies | 889 view(s)
  • Davezj's Avatar
    Yesterday, 10:41 AM
    These two videos show you what boost does to an N/A engine
    0 replies | 21 view(s)
  • Davezj's Avatar
    Yesterday, 10:19 AM
    if i open a new thread in this area there is no icon to link a video but in this are there is, how come? can you check this for me.
    0 replies | 14 view(s)
  • Davezj's Avatar
    09-07-2020, 11:54 PM
    here is a video that that shows you lean AFR is only good for bring on detonation. rich AFR just counteracts detonation. Timing is everything, if you increase time to detonation point and then richen the AFR up and little to stop the detonation then do it, and then increase the timing a little more until detonation returns and then back off a couple of degrees of timing for safety. this is a must watch video to dispel a few myths about tuning.
    0 replies | 21 view(s)
  • Davezj's Avatar
    09-07-2020, 07:14 PM
    i have some stiffer valve springs to fit when i get round to gettig the cam reground for a bit more lift. i was going to open up the standard exhaust manifold outlet to the turbo for more flow as it does seem very small. but i am goingto put sensors all over the engine for pressure and temp (to calculate air density) and exhaust egt and back pressure. this will allow me to make an informed decision on what needs to change and where. do you know what is the flow rate of the standard heads....
    71 replies | 889 view(s)
  • Davezj's Avatar
    09-07-2020, 12:12 PM
    make sure you are not low on clutch fluid. not sure how that would effect engagement pedal height but with checking.
    5 replies | 52 view(s)
  • Davezj's Avatar
    08-07-2020, 11:11 PM
    there has been a lot of talk on here about brake master cylinder and using different size one but i have never heard of anyone wanting to change a clutch master cylinder. is there any mechanical adjustment on the pedal side of the clutch master cylinder i have a clutch pedal and master cylinder in the shed as part of my manual conversion kit i can have a look tomorrow if you want.
    5 replies | 52 view(s)
  • Nick Mann's Avatar
    08-07-2020, 08:36 PM
    That was me on the facebook group! But yes, main dealers can still supply a lot. In current times though, mail order is a bonus.
    3 replies | 55 view(s)
  • Nick Mann's Avatar
    08-07-2020, 08:33 PM
    I've never heard that before. I'd be interested to hear the results.
    5 replies | 52 view(s)
  • Nick Mann's Avatar
    08-07-2020, 08:32 PM
    Nice intro, with plenty of bonus points for pictures. Good luck and keep the photos coming!
    5 replies | 45 view(s)
  • elnevio's Avatar
    08-07-2020, 04:16 AM
    elnevio replied to a thread Greeting From Nairobi in Newbies Area
    /Wave Nice to see some commitment to the cause! /yes Best of luck with it :2thumbsup
    5 replies | 45 view(s)
  • Davezj's Avatar
    07-07-2020, 10:12 PM
    if we had the option of E85 we would all have the option of more power. E85 will stop knock. but need a gasket/seal changes to E85 safe seals. and a flex fuel sensor so you can use normal petrol and E85 . but this is a different topic.
    2 replies | 36 view(s)
  • Davezj's Avatar
    06-07-2020, 05:57 PM
    yeh, as long as the turbo/turbos are size correctly there does not seem to be that much difference, apart from correctly sized twins seem to handle the back pressure issue a little better but go to big on the twins and spool suffers. even if they revatively smaller than the big single. i would love to have a definitive answer to the CFM flow of our heads and the flow at different valve lift that would go along way to suggesting what the max power would be with the correctly sized turbos. ...
    71 replies | 889 view(s)
  • Davezj's Avatar
    06-07-2020, 09:07 AM
    Davezj replied to a thread Running rich in Engine
    there will be no direct route through the cylinder for the pressure to escape, unless you are really unlucky and set the engine to a position where you are right on the overlap between the exhaust valve closing and inlet valve opening, but i don't think our engines have the cam timing setup to run lots of valve overlap so you will be OK. Either the cylinders will have the exhaust valves open and inlet closed or inlet valves open and exhaust closed or both sets of valves closed. so pressure...
    53 replies | 485 view(s)
  • Davezj's Avatar
    06-07-2020, 07:42 AM
    here is another single vs twin with a slightly different take on it.
    71 replies | 889 view(s)
  • Nick Mann's Avatar
    05-07-2020, 08:52 AM
    There are very few active members on here now with V6 versions. Good luck in your search! I'll keep my eyes open.
    3 replies | 73 view(s)
  • Nick Mann's Avatar
    05-07-2020, 08:49 AM
    Nick Mann replied to a thread Back in Jap! in General Chat
    Wow. I have to echo Tim, what a review! We are becoming more and more certain that an ev will make an appearance here within a few years. My job has recently changed and I have a V8 itch to scratch before I turn my back on petrol, but it is nice to see electric becoming more accessible and more exciting. The first Tesla I saw was a model S a fair few years ago at Goodwood festival of speed. I watched silently roll out of the pits and then silently disappear up the hill faster than a lot of the...
    47 replies | 684 view(s)
  • elnevio's Avatar
    02-07-2020, 07:30 PM
    elnevio replied to a thread Back in Jap! in General Chat
    Cracking read Isaac. Really good to have a proper objective review. I know the march that way is inexorable, and there is a certain rose-tinted view of ICE, especially for petrolheads. We should probably have one ourselves, but the main barrier is the initial outlay required. Your review has given us food for thought (I've been boring Amy senseless, er, I mean, discussing the finer points of your lengthy tome with her!), especially with you saying you were surprised to find it within...
    47 replies | 684 view(s)
  • Davezj's Avatar
    29-06-2020, 10:36 PM
    Davezj replied to a thread Running rich in Engine
    a narrow band will constantly switch from rich to lean about the stoic point when the car is running normally. if you artificially create a vacuum leak at idle the narrow band will show lean constantly and the long term and short term fuel trims will come into play and gradually add more and more fuel to bring the AFR back to stoic even with the leek. as the fuel trims do there thing and adjust the fueling the narrow band out will show you the output going from constant max lean back towards...
    53 replies | 485 view(s)
  • Davezj's Avatar
    28-06-2020, 11:50 PM
    Ok all, so i have finished panting the parts, i wish i had not started paining anything other than the block. because anything factory finish i put up against the painted parts just looks a bit crap and unfinished. i have to stop some where and i draw the line at bolts. these do not need to be painted or finished or polished. that would be insane on any car other than a show car and this car is no show car it is a daily driver and i must keep that in mind otherwise it turn into a project that...
    26 replies | 298 view(s)
  • Davezj's Avatar
    28-06-2020, 11:36 PM
    Davezj replied to a thread Running rich in Engine
    I had to Heli coil one of my plenum to inlet manifold connection. It is very easy to do, you just have to be careful with what you are doing especially when you snap off the screw in tang. Sent from my MI 5s using Tapatalk
    53 replies | 485 view(s)
  • Davezj's Avatar
    28-06-2020, 10:32 AM
    So from an electrical point of view the injectors being triggered correctly if you can see the pulsing. But it does not mean the injectors are actually opening and closing. This opening and closing is quite loud with a sharp tick tick tick as they are firing. So you can get a screw driver and put it on the top of each injector and put you ear to the screwdriver handle and listen to the injector fire. Sorry this would have probably been an easier thing to do than measure all the voltages. But...
    18 replies | 312 view(s)
  • Davezj's Avatar
    28-06-2020, 10:16 AM
    Did you open up the outlet holes in the stock manifolds at all they are very small. I was thinking it might help the exhaust flow. There is quite a lot of metal that could be removed to make the hole bigger. Sent from my MI 5s using Tapatalk
    71 replies | 889 view(s)
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