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 DJ Wilmas 111S S2 Lotus Elise, turbo k seriesModerators: Jump to page : 1 2 3 4 5 6 7 8 9 10 11 12 Now viewing page 5 [25 messages per page] | |
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djwilma |
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 Expert Posts: 2812    Location: Bournemouth | Munday you were right more ignition not less, apologies Bit of a pain but the water pump to the dyno brake broke today so didnt quite manage to get it all done. Here is the curve for the first curve, timing is now correct but still needs cam timing and more boost but its a nice start. Boost is rising higher up which I think is the wastegate being to small but its not the end of the world. Still needs to rev more but its a good base.......hopefully tomorrow but 400bhp looks achievable hopefully more    | ||
| djwilma |
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Expert Posts: 2812 Location: Bournemouth | |||
| munday |
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 Expert Posts: 5629   Location: Letchworth/Basildon | |||
| djwilma |
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Expert Posts: 2812 Location: Bournemouth | |||
| munday |
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Expert Posts: 5629 Location: Letchworth/Basildon | djwilma - 27/2/2013 10:39 PM munday - 27/2/2013 6:29 AM Definitely looks like boost is creeping at higher rpm. What boost control you using? Internal waste gate? EDIT: Just re-read (the first post), you running the 2860? My opinion...to small turbine to make the power at the rpm you want. I don't suppose you have a pre turbine exh pressure? Not a 2860 a Gtx2867 Creep is waste gate and boost control is better on higher boost. Lack of up top power is cam timing Lack of power up top is due to the 67mm turbine! Cam timing might help but it's a band aid IMO. Boost control at high boost I'd better because you're demanding a lot less flow from the waste gate! Trust the engine development engineer mate | ||
| djwilma |
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Expert Posts: 2812 Location: Bournemouth | |||
| munday |
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Expert Posts: 5629 Location: Letchworth/Basildon | djwilma - 27/2/2013 11:10 PM Not bothered about boost creep and wastegate, can always fit a external one As for the 67mm compressor, i would suggest you look at the compressor map first.....plenty of 2.0 turbos running more than 400bhp at more than 7000rpm on the 0.64 a/r turbine housing. Trust the fluid dynamics people Cams are massively retarded, i have no lift at TDC Ok, so I did some reading. The 2867 has a 58mm turbine (my bad). Looks like its designed to run high pressure ratios and still be efficient. Basically meaning you can run with a smaller turbo at higher boost to make the power. So the turbo is probably quite capable of the power you want. BTW I didn't say the compressor was too small, 67mm is enough for plenty of power. Get the boost in there then sort the cams out, even on a gash T series it should be respectable. And dont you dare call me retarded again  | ||
| djwilma |
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Expert Posts: 2812 Location: Bournemouth |  So cams were checked and inlet was 1.8mm at tdc and exhaust was the correct 0.42mm. Inlet has been corrected and it made another 40bhp. But the dip in power at 6250rpm is still there. It does recover so tomorrow we go for more. But exhaust manifold gasket is blowing so needs changing. Could be turbine housing but its got no more boost on the 11psi actuator. So do I up the turbine housing to 0.82a/r and bolt on a 14psi actuator. Or just accept it will be quick enough with 450bhp per tonne and get it on the road ! | ||
| DotMatrix |
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 Expert Posts: 4458 Location: Jelling, Denmark | couldn't you kind of do both? get it on the road and start using it a bit while you wonder about whether to try and go for more power. maybe you will figure out other stuff that is more important to do on the car while trying it. very nice power by the way! bet that makes one very fast "canoe" Edited by DotMatrix 28/2/2013 6:11 PM | ||
| munday |
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Expert Posts: 5629 Location: Letchworth/Basildon | You already know what I think, get it out there on the road and track | ||
| ding |
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| djwilma |
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Expert Posts: 2812 Location: Bournemouth | |||
| glyn-ellis |
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| Elite Veteran Posts: 697 Location: leigh | |||
| ding |
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| glyn-ellis |
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| Elite Veteran Posts: 697 Location: leigh | |||
| djwilma |
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Expert Posts: 2812 Location: Bournemouth | |||
| djwilma |
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Expert Posts: 2812 Location: Bournemouth | So 382bhp and 371lbft just doesnt cut it, actually 6250rpm doesnt. C6 gearbox is just too short so need more revs, may loose a little bottom end but hoping to gain 1500rpm top end So, i made some enquiries and came up with a plan of a ported and polished head with Mechanical Lifters, uprated single springs and some billet cams. So i managed to get a head, its been ported but i only paid £200 for it, add to this the mechanical lifters and the springs (same as a k series) i purchased and all i needed was the billet cams Spoke with Grant at gb-ent and he said £800 plus VAT, Piper said 1200 so i thought long and hard and in the end have sent some cams for a re-grind to Piper 285M via Drew at roverdose. Not ideal but i havent even driven the bloody thing yet !! In fact the only elise i have driven is a 340R, to the end of friends road and back, and a S2 of Junks, where i reversed 20 yards. So the head malarky, will happen after the summer, car is on its way back as we speak from JDM Dyno in Cumbria so i can enjoy it as its nearly a year since purchase. Pics of Ported Head, David Bailey eat your heart out  Exhaust  Inlet  Oh and the seats i have are blue and material, as the leather seats were sold, so i bought this drunk off of ebay........  They have a stamp saying 2002 so assume close enough for now Plan is to get it re-sprayed and on the road within the next 4 weeks........ | ||
| djwilma |
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Expert Posts: 2812 Location: Bournemouth | The car arrived home a day early, i was just trying to check in to a flight to Norway (which i missed), when the nice man called to say he was 30 mins away. Long story short my brother met the man and car is now at friends Lock Up awaiting being stripped and re-sprayed.......Starlight Black as per the original car Engine in, only issue is the throttle cable hits the bonnet, so may need to adjust one of them.......  Nice big Dump Valve  Ickle Bit tight for the turbo but a ahem "Chimney" style heat shield, turbo blanket and baulkhead has been given the heat shiel treatment. Should help, undertray has a massive naca duct in it underneath and engine bay has a 4" in line fan to move air around when stopped or hot...  Charge Cooler, looks like a custom fit.....however its a Fiat Seicento std radiator, which is twin pass, with a modded end tank to take the 19mm tube to the charge cooler  Rear looks fairly std, as it has the original 3" Lotus ends :cool  Vibratechnics engine mount, and a few things in where the wheel arch should go so may need a little move around :beat  Inside the car we added the AFR gauge, the centre consol can do it but easier to look at the MTX, passengers knee may hit it so will remove the wifes right leg if this happens (y)  Front Clam with triple pass Pro-Alloy rad with 2 pull radiators.....charge cooler also has fans on back side for added cooling  AP 4 pot brakes look tiny against the 308MM discs, from a Vectra re-drilled to suit Elise Hub, all under std 111S wheels :o  Little, bad video, have explained to mate never to rev and switch off the engine again......or i kill him http://www.youtube.com/watch?v=i2D818jHGfI&feature=youtu.be Sounds and footage is terrible so will get a better one later. Its has a resonance through the longer pipe, so blocking this quietens the exhaust.....just in case its too loud i can bung a bung or orifice into it | ||
| chris_evz |
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 aka chris_evz Posts: 2726 Location: brynna south wales | |||
| DotMatrix |
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Expert Posts: 4458 Location: Jelling, Denmark | looks like a serious set of front brakes | ||
| djwilma |
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Expert Posts: 2812 Location: Bournemouth | DotMatrix - 28/4/2013 3:04 AM looks like a serious set of front brakes Ap 4 pots with 308mm discs Should be ok | ||
| AdrianSi |
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 Expert Posts: 8490  Location: Midlands | djwilma - 28/4/2013 9:16 PM DotMatrix - 28/4/2013 3:04 AM looks like a serious set of front brakes Ap 4 pots with 308mm discs Should be ok When you uprate the tyres  I assume theyre on the 'to-do' list? Awesome build! | ||
| djwilma |
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Expert Posts: 2812 Location: Bournemouth | |||
| djwilma |
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Expert Posts: 2812 Location: Bournemouth | Well things slowed to a halt, promotion at work lots of travel and so on have meant the cars been on the back burner but finally getting things done The throttle linkage needed changing as the m series inlet was fouling the rear clam, now fits underneath  Wiring is a mess so having this tidied up and the addition of a seperate fuel pump relay for the motor sport pump  But the main issue is the front clam. Bodge it and scarper painted it a lovely blue which had gone crazy. Tried to sand it off and it goes too mooch and clogs the paper as they just painted onto the original paint without sanding. Only way to remove is with a scraper which is time consuming   Hoping to have the car complete by end of june | ||
| djwilma |
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Expert Posts: 2812 Location: Bournemouth | Well this is becoming annoying. Been so busy with work the car hasnt moved on much. So today I left early and finally did some stuff The fuels pumps have been wired in on seperate relays now, but on running it up it now has a fuel leak on the old regulator, so have to change the fuel rail grrr  But final got the rear inner arches on  And the front n/s. Am I right with the fusebox and relays ?  | ||
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