Five50 Posted May 15, 2021 Report Share Posted May 15, 2021 Engine looks badass!! Quote Link to comment Share on other sites More sharing options...
Tex Posted May 15, 2021 Report Share Posted May 15, 2021 From those pictures you can see just how high the V6 engine sits Confirming why the handling isn’t quite what it could have been if it had a lower slung unit. Quote Link to comment Share on other sites More sharing options...
Popular Post Mattmahope Posted June 10, 2021 Author Popular Post Report Share Posted June 10, 2021 After over 3 months of waiting, I finally got my car back at the end of May, just in time for a cracking day at Goodwood (having already missed out on a day at Snetterton that I had booked but had to cancel since the car wasn't ready in time). The car was absolutely fantastic and it felt great to finally be back on track, even though I was seriously rusty from lack of driving and very nervous given all the work that had just been completed, especially at a fast track where I had never been before. I have had lots of positive comments on the new look, which I must say that I am incredibly pleased with myself. Pictures included below. What do you think? P.s. You may recognise the (excellent) photographer from this parish... 5 11 Quote Link to comment Share on other sites More sharing options...
stephenwhyte Posted June 10, 2021 Report Share Posted June 10, 2021 Lovely - you must be over the moon @Mattmahope👏🏻👏🏻😎 1 Quote Link to comment Share on other sites More sharing options...
Exx Posted June 10, 2021 Report Share Posted June 10, 2021 Amazing color, love it 1 Quote Link to comment Share on other sites More sharing options...
Tex Posted May 31, 2022 Report Share Posted May 31, 2022 What dyno numbers did you get on your car Matt ? On 10/06/2021 at 10:08, Mattmahope said: After over 3 months of waiting, I finally got my car back at the end of May, just in time for a cracking day at Goodwood (having already missed out on a day at Snetterton that I had booked but had to cancel since the car wasn't ready in time). The car was absolutely fantastic and it felt great to finally be back on track, even though I was seriously rusty from lack of driving and very nervous given all the work that had just been completed, especially at a fast track where I had never been before. I have had lots of positive comments on the new look, which I must say that I am incredibly pleased with myself. Pictures included below. What do you think? P.s. You may recognise the (excellent) photographer from this parish... Quote Link to comment Share on other sites More sharing options...
Mattmahope Posted June 1, 2022 Author Report Share Posted June 1, 2022 Depends on which dyno you believe, but somewhere around 490hp. Engine is currently out of the car for a fully forged rebuild, so will see what numbers we get after that…! Quote Link to comment Share on other sites More sharing options...
Tex Posted June 1, 2022 Report Share Posted June 1, 2022 57 minutes ago, Mattmahope said: Depends on which dyno you believe, but somewhere around 490hp. Engine is currently out of the car for a fully forged rebuild, so will see what numbers we get after that…! Good numbers, what about the Torque ? I had mine dynoed yesterday and it’s a bit of a lottery really with all the different variables, however the Torque was 389lbs ft which was better than I expected. Forged will add some longevity, good luck Quote Link to comment Share on other sites More sharing options...
DangerousDave Posted June 4, 2022 Report Share Posted June 4, 2022 On 28/05/2020 at 10:56, Mark030358 said: @Mattmahope Hi mate, So happy for you. I think I said a while ago after my upgrade, the KT are just fantastic, really customer focused and their kit is as you say, OEM or better. I was really impressed when I went, and given your experiences just confirmed what I have always thought, that for an expensive upgrade such as this its the only place to go. Interesting re your low throttle openings, the Ex460 is exactly the same when starting from cold and needs say 1/2 mile to settle down (i.e. the engine to warm up) but after that is perfect. I did the Alps in mine last year and your right, the cars just rip through the gears... and the howl Is beyond belief 👍👍 cheers Mark ps you now need to get hold of Dan to make up the front and rear decals, they are exact as I sent him a template when I did mine. His work is first class. Thats because you wern't foolish enough to mess with the oem TB. Ever car that i've changed TB's on had to get another swap to get it working right. Quote Link to comment Share on other sites More sharing options...
DangerousDave Posted June 4, 2022 Report Share Posted June 4, 2022 On 16/05/2020 at 08:22, Mattmahope said: After what feels like an absolute age (my car has been in Mendig since mid January), the new TVS1900 kit is finally installed! I am really pleased with how it looks in the engine bay from the the limited pictures I have. And it certainly does the numbers on the dyno - 493hp and 523NM of torque. The kit is capable of plenty more but we have kept to reasonable levels to avoid the need for forged internals and gearbox work at this stage (at least hopefully!). My biggest concern is that the clutch will hold up. I fitted a new Evora 400 clutch in October 2018, which seems to cope fine with the EX460 kit, although mine has around 50NM more torque, so will be right at the limit. I'd be interested to hear any thoughts on alternative clutch options from anyone running big power/torque on their cars. From my research it looks like Exedy and XClutch are the two obvious candidates, although finding a clutch that is able to deal with track driving and that much torque (and potentially more in future) on one hand, while also having good road manners on the other hand, might be a bit challenging. I couldn't help but notice that Exedy do a very tasty looking carbon option, although I remember all those tales about the Carrera GT's clutch when that was released and not sure I fancy having to warm it up each time I start driving! Still pretty cool though... http://www.exedy.co.uk/products/mt-sports/hyper-carbon-d Is this the clutch you have in the car? https://www.komo-tec.com/en/lotus-exige/mk3-toyota-v6350380/gearbox/444/super-lightweight-aluminum-flywheel-with-sports-clutch-exige-s-v6/evora-s?c=908 Did you wind up doing anything with exedy? The xclutches kinda suck in terms of drivability. I would prefer a full face disc like the exedy. On 01/06/2022 at 09:33, Mattmahope said: Depends on which dyno you believe, but somewhere around 490hp. Engine is currently out of the car for a fully forged rebuild, so will see what numbers we get after that…! Hopefully your getting the golfball treatment on the heads as i'll be sending mine for just that! Quote Link to comment Share on other sites More sharing options...
Mattmahope Posted June 5, 2022 Author Report Share Posted June 5, 2022 On 04/06/2022 at 02:50, DangerousDave said: Is this the clutch you have in the car? https://www.komo-tec.com/en/lotus-exige/mk3-toyota-v6350380/gearbox/444/super-lightweight-aluminum-flywheel-with-sports-clutch-exige-s-v6/evora-s?c=908 Did you wind up doing anything with exedy? The xclutches kinda suck in terms of drivability. I would prefer a full face disc like the exedy. Hopefully your getting the golfball treatment on the heads as i'll be sending mine for just that! No, I have been running the full face ceramic XClutch. Driveability has been OEM or better. Yes, cylinder heads will be fully ported and polished. Quote Link to comment Share on other sites More sharing options...
Exx Posted June 5, 2022 Report Share Posted June 5, 2022 Something happened to your engine matt ? Quote Link to comment Share on other sites More sharing options...
DangerousDave Posted June 5, 2022 Report Share Posted June 5, 2022 10 hours ago, Mattmahope said: No, I have been running the full face ceramic XClutch. Driveability has been OEM or better. Yes, cylinder heads will be fully ported and polished. https://www.monkeywrenchracing.com/product/xclutch-clutch-and-flywheel-kit-lotus-evora-exige-v6-all-stage-2-ceramic-segmented/ IF thats the one i doubt your gonna come into any problems as it's rated for 680ft/lbs. Glad to hear about oem drivability tho thats unexpected. Quote Link to comment Share on other sites More sharing options...
Mattmahope Posted June 5, 2022 Author Report Share Posted June 5, 2022 51 minutes ago, DangerousDave said: https://www.monkeywrenchracing.com/product/xclutch-clutch-and-flywheel-kit-lotus-evora-exige-v6-all-stage-2-ceramic-segmented/ IF thats the one i doubt your gonna come into any problems as it's rated for 680ft/lbs. Glad to hear about oem drivability tho thats unexpected. Yup, that’s the one. But switching to a twin plate for the next stage of my build. Now that may have an impact on driveability…! Quote Link to comment Share on other sites More sharing options...
DangerousDave Posted June 5, 2022 Report Share Posted June 5, 2022 Personally i'd rather wait to see the clutch slipping before going with something more hardcore. Quote Link to comment Share on other sites More sharing options...
DangerousDave Posted June 8, 2022 Report Share Posted June 8, 2022 Heres a little treat from xclutch If you are requiring more torque capacity than our stage 2 kits, we offer a 7.25” twin sprung ceramic disc clutch for the Evora. This clutch is part number XKLT18530-2B and is rated for 900 ft. Lbs. at the flywheel. This uses a full faced ceramic disc along with a sprung hub and is more friendly for street driving compared to a rigid paddle style disc. Quote Link to comment Share on other sites More sharing options...
Popular Post Mattmahope Posted October 17, 2022 Author Popular Post Report Share Posted October 17, 2022 As a brief but long overdue update, my car is currently with Back On Track, who have been manging my engine rebuild process. They removed the engine and gearbox from the car, and sent them to Tom at Datum Motorsport to carry out the rebuild, which is now finally nearing completion. High level specs are as follows: Forged pistons & rods from Jubu (made by CP Carrillo, same spec as Radford) Billet cams, beehive springs and titanium retainers from Kelford Cams Titanium intake valves and inconel exhaust valves from MonkeyWrench Racing Uprated hydraulic lifters and rocker retaining clips from MonkeyWrench Racing Ported & polished cylinder heads ARP2000 head bolts Stock crank with custom pulley / damper XtremeClutch twin plate ceramic clutch with adjustable release valve Komotec shortened final drive kit Strengthened shifter fork ends Cryo treatment for gearbox internals While I have specifically not set any requirements in terms of final numbers, we should be able to hit over 8000rpm, which is my main goal. Power will be what it will be, but we may well need to cap it to reduce likelihood of gearbox damage. Most important thing for me is that the engine feels more special and exciting, not how much ultimate power it puts out. Frankly anything over 500hp is mental enough! I am also having a bespoke motorsport wiring loom made up. This should save around 9kg from junking redundant wiring alone. Will also make it easier to remove the rear clam in future as all wiring will go through one motorsport connector. Final major update is fitting the new TracTive semi active dampers as seen on @GFWilliams's car and the new Pagani no less. The Ohlins TTX I had were great on track but too stiff for me on road. I also really wanted to be able to adjust the dampers on the fly from inside the car, which is what the TracTive system allows. I considered Ohlins mechatronics but the TracTive system is far more sophisticated and came highly recommended by Mr. Williams. Big shout out to Sam @ BoT and Tom @ Datum, who have both been absolutely outstanding so far throughout the process. I'll reserve final judgement until the car is up and running, but there has certainly been no faulting their customer service. Both have given me all the time in the world, answering all my questions, helping me with selecting parts, planning the build etc., and have always kept me up to date on progress. Cannot ask for more than that. To be continued... 6 5 Quote Link to comment Share on other sites More sharing options...
550superfast Posted October 24, 2022 Report Share Posted October 24, 2022 This car is quite a project now. I will be looking forward to hearing how the engine drives after the rebuild and upgrades. 8000rpm changes things a bit. 1 Quote https://www.youtube.com/user/400superamerica Link to comment Share on other sites More sharing options...
Popular Post Mattmahope Posted November 3, 2022 Author Popular Post Report Share Posted November 3, 2022 On 24/10/2022 at 19:54, 550superfast said: This car is quite a project now. I will be looking forward to hearing how the engine drives after the rebuild and upgrades. 8000rpm changes things a bit. Yes indeed - being able to rev higher and more quickly was key for me to really make the engine feel more special. Much more important for me than raw power numbers. Hopefully it will pay off. Engine and gearbox now completed and delivered by Datum to Back on Track. Coil packs fitted and new Jubu uprated pulleys going on. Alternator pulley is 20% slower - particularly important given the extra rpm I will be running. Also frees up a little more hp which never hurts! 3 Quote Link to comment Share on other sites More sharing options...
DangerousDave Posted November 3, 2022 Report Share Posted November 3, 2022 Where are you getting the strengthened shifter fork ends from? Quote Link to comment Share on other sites More sharing options...
Mattmahope Posted November 3, 2022 Author Report Share Posted November 3, 2022 5 hours ago, DangerousDave said: Where are you getting the strengthened shifter fork ends from? Monkeywrench Racing Quote Link to comment Share on other sites More sharing options...
Mattmahope Posted November 3, 2022 Author Report Share Posted November 3, 2022 https://wilhelmraceworks.com/blog/2gr-oil-drains?fbclid=IwAR3U7gFDL5ImGMZ2sK65lxZCWVo7YZ6o8xn5AY8XOGhyyVf45fI2cpslT6E In classic “while we were at it” mode, I found this interesting article on 2GR oiling and Tom at Datum agreed it was worthwhile, so he has fitted extra oil drainage from the top of the engine. Sam at BoT will then plumb in a line directly back to the sump. Every little helps, especially when it comes to sustained high rpm on track without a dry sump. Quote Link to comment Share on other sites More sharing options...
DangerousDave Posted November 4, 2022 Report Share Posted November 4, 2022 I am a sucker for the golf ball porting of KT yet they wont even give me a shipping address until the winter they are so busy and they have held back an order of mine for more than 6 months now Quote Link to comment Share on other sites More sharing options...
MrD Posted November 5, 2022 Report Share Posted November 5, 2022 Just caught up with this thread, you really did go to town, impressive stuff! Colour is amazing and I dread to think how much $$ has gone to the engine build- it'll have so much character though, I'm sure it'll worth it:) Ignorant question, why would you reduce the alternator speed? It's not like that car will be sitting@8k rpm all the time, would the charge be sufficient in normal driving? Also, what I found with these cars is that the gear change is not perfect when on it and at the higher end of the rev range - the box just does not want to play ball, how would things be at an even higher rev limit? Have you made any improvements on that front or is it not a concern? Finally, where did you get the cupR engine cover please? Thanks and looking forward to videos! 1 Quote https://www.youtube.com/user/fiestaria Link to comment Share on other sites More sharing options...
Mattmahope Posted November 6, 2022 Author Report Share Posted November 6, 2022 On 04/11/2022 at 01:37, DangerousDave said: I am a sucker for the golf ball porting of KT yet they wont even give me a shipping address until the winter they are so busy and they have held back an order of mine for more than 6 months now The guy who did my cylinder head work used to be chief of cylinder head design at March F1. Probably good enough for me…! Quote Link to comment Share on other sites More sharing options...
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