Awesome engineering
Awesome engineering
A guy on passionford ,has made billet throttlebody for cosworths.It would sit nice on the end Ibelieve its replicating the jenvey one.
x2Originally Posted by Adey aka Ewok
ooo, i want one, exit to the left tho please
Spare time over the last couple of months has been skant but I have been steadilly cracking on. I'll get some pictures up tomorrow maybe.
I got it fired up tonight with the old loom layed over the engine, all seems to be running OK. Manifolds and fuel rail all working fine. Gearbox has some odd problem that means I can't select gears easilly with the engine running. It got too late in the evening for me to run the engine long enough to diagnose but hoping it's because the gearbox is bone dry inside. Or, clutch might be dis-engaging too far and pressing the spring cover against the plate, which should be an easy adjustment.
I need to get that resolved next weekend then on with mapping I hope.
Chris
looking forward to more mind bending pics of how you get stuff done and make things possible
I had to go in to the garage this evening to make something up for someone and ended up playing with the car for another hour or 2.
I found the clutch/gear problem - thankfully an easy fix, turns out the slave clyinder is allowing me to press too far and is pushing the spring cover in to the drive plate! If you press the clutch just past half way everything works great. Then, if you press further you can hear the cover start to mesh with the plate and the car wants to pull forward. The harder you press the clutch the more drive you getQuite a weird feeling. But I can re-jig the pedal ratio and put an adjustable stop on the floor to stop the pedal moving too far.
great work chris keep it up
Scoff, are you saying it could be the size of the slave too big? Been looking at a solution for myself, a combined resevoir/slave from another car.I had to go in to the garage this evening to make something up for someone and ended up playing with the car for another hour or 2.
I found the clutch/gear problem - thankfully an easy fix, turns out the slave clyinder is allowing me to press too far and is pushing the spring cover in to the drive plate! If you press the clutch just past half way everything works great. Then, if you press further you can hear the cover start to mesh with the plate and the car wants to pull forward. The harder you press the clutch the more drive you get
Good find scoff... crack on mate with it... Have pop over soon see how your getting on... Will you be at RTOC pod day??
matt, nah I think it's just the master shifting too much fluid. I had to use a VW slave cyl as a master cyl because the mini one didn't have quite enough volume. This new one has too much, but thats an easy fix.
Rob, yes m8
Engine bay mostly done now. I need to get the new rear beam on (thanks Ashy) and general tidying up ready for MOT and a basic map to get it to and from national day.
The clutch is hardcore, driving 'calmly' in and out of the garage is no longer an option !
loving that engine bay
nice, very nice. looks tidy in there
I need to stop looking at these threads..... Makes my car look stock
Looking good mate!!
Hope it goes well for you this year Mr Scoff, first gtt into the nines
ill second thatHope it goes well for you this year Mr Scoff, first gtt into the nines
Awsome mate, just awsome..
Cheers lads. Adey, no idea mate, I'd be happy with any gain, I'm more concerned with the gearbox being better than last year.
Flan, thats because you've taken the time and effort to make yours look like it could have rolled off the production line like that. I don't have the patients
Looking good
Are those tie wraps I can see
amazing mate well done with that , love the effort all the time, see you soon matt
as ever, a really neat installation.
With regard to your clutch stop, I temporarily bolted a bit of 3x2 to the floor in my car. It's still there, but I like to think of it as touching wood every time I change gear
lee (eyes like a sh1t house rat
andy, turns out the fix was an easy one, a few washers under the m/cylinder to shim it up 2mm did the job.
spent the morning swapping the rear beam, not a job I want to repeat in a hurry. Thought I was buggered for a moment when I had to destroy a handbrake cable to get it out of the caliper. where was I going to get one from on a sunday ? then I rememberd about 6 years ago I'd won a prize at one of jaffa's rolling road days - you guessed it - a pair of brand new renault OE hand brake cables !! Still at the back of the garage
shiney **** its got to go faster lol
Looks awesome mate,I'm sure all the graft will pay off
nothing wrong with tyraps, F1 would be in real trouble if the FIA banned them
Wow cracking stuff mate
Awesome effort mate,
Cable ties
I get a right ribbing for using em!
I like to think of them as quick release
Dude, fyi
Just found out the Elise boys run their stock clutch master cylinder if using the 6 speed box.... it works OK, the travel is bit long but its nice and light. If it's 5 speed box with stock slave cylinder they have to run a bigger 0.75 cylinder.
Flan
Scoff,
Brilliant job, well done! Just a quick one though, how come you have the fuel return out from the rail instead of returning at the regulator?
it does you can see it on the left of the picture?
Sorry matt, not sure what your asking buddy. Rail is piped in the usual way. Feeds in on the left and return is on the right
Thought you would have binned the return and reg by now and map your fuel pressure..Sorry matt, not sure what your asking buddy. Rail is piped in the usual way. Feeds in on the left and return is on the right
Sorry, should have explained why i asked!Sorry matt, not sure what your asking buddy. Rail is piped in the usual way. Feeds in on the left and return is on the rightI'm using a 3 port reg with a rail which only has the inlet. The return is from the regulator. Ive wondered if allowing constant flow through the rail would make any difference??
Map the pressure ? Or map for a constant pressure ? The latter is horrible with big injectors !Thought you would have binned the return and reg by now and map your fuel pressure..
Could you Map the voltage regulator for the fuel pump against map pressure/rpm??
But you'd still need a return (a loop) of some kind else the pump would stall. The pump needs flow all of the time and at idle and part throttle the flow will be barely measurable. I think I'll stick with a fuel regulator
hmmm, how do return-less systems work? i was speaking to willday at pod last time i was there and he was running return-less, puzzled me a bit, i thought maybe controlled voltage to the pump, guess not
Have you seen how the later Clio sports and megane 225 work ? They work like that, just a feed, but in those cases the pump has a regulator built in the tank so there is still continuous flow through the pump but you don't see it. The fuel maps for those engines take in to consideration the fixed fuel pressure.hmmm, how do return-less systems work? i was speaking to willday at pod last time i was there and he was running return-less, puzzled me a bit, i thought maybe controlled voltage to the pump, guess not
ah ha, well that makes sense then
im guessing they run higher fuel pressure, more fuel efficent im guessing with better atmo?
whens its first outing then? i see speckys has just pulled 704bhp on pump fuelare you running in the same series?
Yeah thats what i mentioned in my last post. I run a single supply to the rail and return at the regulator hense why i asked about the rail return.
Sure did, I was there when he did it yesterdaywhens its first outing then? i see speckys has just pulled 704bhp on pump fuel
Rob, yes, but I don't know what the fuel pressure will be. 4bar or so I guess. All the ones I've tuned have used regulators because they've been conversions.
Matt, yes, your way works just as well really. I prefer to have flow through the rail when priming though, it can help with hot starting.
Update - taxed and tested, thanks to those involved and a base tune done to just shy of a bar.
Hydro clutch being a pain still, the new cylinder is sucking air in somewhere meaning it needs a bleed every 20 mins. Ordered a willwood 0.75 today, it'll be touch and go if I get that done and working in time for mallory.
Sure did, I was there when he did it yesterday
Rob, yes, but I don't know what the fuel pressure will be. 4bar or so I guess. All the ones I've tuned have used regulators because they've been conversions.
Matt, yes, your way works just as well really. I prefer to have flow through the rail when priming though, it can help with hot starting.
yikes, thats a lot of power, he must of ditched that 62mm unit surely?
the race is on then for the 1st 150mph fwd car
Yeah, it's not 62 anymore for sure. 150mph - specky was showing me his new shoot and mount, welded into the rear cage. I think he'll probably break 150mph first. But, after me saying how good his gearbox seems to be he went and broke it the same night so he's out for another couple of weeks I guess.
he,s located a new box specky is on a mission he,s having with drawal simpton not been racing for 3 weeks
Was that a precision 6262 he was using? Seen these make 800hp on a fews evos hondas etc, saying that probabley on race gas
have you seen how much boost they take to make those numbers though?
there not ideal.
i knew he would ditch the 62mm. im guessing he just gone upto 67mm.
good stuff though, i really believe this year the UK scene will close up considerably on the yanks, should be a great season, records will fall weekly
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