that front end looks mint
Printable View
that front end looks mint
at rockingham tomorrow!!! i'll be able to hear you whilst im at work :(. might have to pop in
Why not shave some of the backing plate off the pads on the inboard side to prevent the touching under expansion... or space the caliper out another few mm etc
Well an interesting day with mixed fortunes.
The brake cooling system worked really well
The suspension mods and new shockers set up was good with no nasty suprises
The engine is clearly much more powerful than the 1.4 and when it comes on cam really flies.
The dog box, gripper diff and gear change assembly which seems agricultural and very difficult to use in the paddock comes into it's own at full chat. Using the clutch is optional and no finesse is required lol.
The big disappointment and frustration was the fact after a couple of laps and things got properly warm the engine developed a major loss of power eventually leading to the engine refusing to go over 4000 rpm tho it would idle happily.
We suspect it is sensor problem - maybe the crank sensor but we couldn't locate a spare so we spent a frustrating afternoon going out for 2 laps and then having to come in and scratch our heads
http://i205.photobucket.com/albums/b...ova/th_012.jpg
click the image for the video
This was about the first occasion I actually built it up to over 8000rpm for a sustained period - it does 9000 before the limiter soft cuts in
Sounds awesome :cool:
Shame about the problems, definently sounds crank sensor related.
Sounds awesome :cool:
Shame about the problems, definently sounds crank sensor related.
Sounts top
Sounts top
Wow, sounds ace, nice to see your still playing with it cp, and is that Jim sporting a grey haired praying position in the pit garage? lol
That cooling system looks a good idea, though I'm sure over time you will need to possibly replace the ducting, as i thing it might ware through from movement etc.
Ive seen car's where they duct from the front bumpers, like fog light openings etc.
How close are they tyres to the shock/springs? looks from them pics very very close, what tyres are they?
Suspension and exhaust setups look the real deal too, see you have been sourcing some nice stuff that Ive not either seen, or just cant remember as its been a while! lol
Hope you fix the issue you have and get it upto scratch how you want.
Scott
Charles - which coilpack are you using and where is it mounted?
The GM ones suffer terribly from heat soak and when they get hot - they run like the ignition is retarded...
The Ford ones also suffer apparently and a friend had to re-mount it on the inner wing as it used to even cut out when it was super-hot.
great to see you charles and of course jim and good to meet mark. proper shame about the problems but still an awesome car and im sure you'll get it sorted
Funky looking tie bars there.
Glad it was a good outing even if you did have probs.
Can't get to pages 34 & 35
?
Charles, the forum had a brain fart and lost its links to some posts/threads/pages.
Right dunno what's happening with the posting here but I've finally managed to open up the last page and actually get to read what's been posted.
Thanks Will for the advice about the dispak. It is on our list of suspects along with crank sensor, water temp sensor and spark plugs. The engine has been stood a long time and we already have had all the spark plugs fail even tho they've not run for any length of time which indicates that stuff deteriorates over time irrespective of whether it's been used or not.
The Tyres are Dunlop racing slicks which are difficult to get clearance for cos of the right angled profile they have where the side Walls meet the flat. That's what gives them their ability to retain full grip right up until they break away. There is no gradual progressive under or over steer with them. They either give full grip or none
have always loved this car and the originality of cp's thinking on resolving issue's.
one of my all time fav's
Looks and sounds awesome!
what plugs are you running CP? they shouldn’t degrade if they aren’t being run, what heat range etc?
They are NGK plugs. Don't know what heat range. We think the problem might be dispack related as Will F suggested. It's going on a rolling road soon so fingers crossed its sorted and ready for another track day soon.
Quote:
Originally Posted by Jim
be sure to post when and where
cool, if it was me i would run NGK BCR8ES gapped to about 37 thou:thumb:
Nipped into Jamsport first thing this morning who kindly took time out to put the car their rolling road to try and work out what the problem is.
Mixed fortunes as per normal :roll: Although it got run up, Jamie wasn't happy with the suspension settings which have not been properly set and are, to say the least extreme,lol which were creating issues with how it behaved on the rollers so the session was abandoned.
Otherwise, in Jamies opinion, the engine needs re-mapping because the air/fuel ratio readings were all over the place. Certainly it has a massive hole in its power delivery & is not pulling cleanly through the rev range in anyway shape or form as per an engine not properly mapped. However, I'm a bit suprised and had not previously thought it to be the problem because this engine is supposed to have been mapped by SBD on an engine dyno almost no miles ago. The main problem is that not having anything to do with the creation of this engine nor knowing who built it and whether it was mapped by SBD for sure we can only go on what we find. Hopefully all it requires is a proper map and nothing else is wrong.
Anyway next job is sort the suspension out so its better behaved on the roller so Jamie can do his stuff without fearing for his lifelol
http://i205.photobucket.com/albums/b...ova/th_011.jpg
good luck with the mapping matey, whats the full spec btw? sorry ive not seen it in previous posts:S
think i’d ring SBD and see if they can shed some light on it if i were you, if its only been dyno’d i would expect the map to need a tweak once its in a car with the full exhaust ectc, but the AFR shouldn’t be 'all over the place’ really, sounds more like its on a base map
Either on a base map or someone fishing for some business..... call me an old cynic lol
doesn’t sound too good in the vid, but you will get some strange AFR with a cammy engine such as this at certain points, but the main thing is it doesn’t drive right so does sound like it needs mapping tbh
Now now, you cant say that :p lol lol ;)Quote:
Originally Posted by Stuart
Jesus, that nearly escaped out the rollers,Lol. Does sound quite ill about half way through the rev range.
On my daily that developed a similar problem, like it had a rev limiter as soon as it was under load, but would then clear. That was down to a dodgy coilpack.
Ecotec btw, so uses the coilpack that most tb'd engines use.
Hmm think i would be going to track and road for a remap Charles after some of the stories and abominations i have seen about the other company....
On my brief drive I experienced the following:
1st lap, appeared to be all ok, lots of power and relatively smooth torquey delivery, far better than the 1.4 ever was. After a lap on full power something changed and there wasn't just a loss of power, the engine was dead. Depressing the throttle pedal dropped the revs and ultimately lead it to conk on my way into the pits, only just made it! The car idled well and after 30 mins of cool down would go out and do another lap or so on full power. What gets me about the mapping suggestion is that the fault is/was so on and off. I'd also say that each time its been driven, the time of good running is reduced. Anyone want to look at the map and data log?
MC
So has the coilpack been swapped for a new one?
Not yet Will.
chuck it this way :)Quote:
Originally Posted by MC
Very much a temperature sounding issue, so either there is something stupid in the calibration regarding what happens with engine temp, or the coilpack is on its last legs, or the bay is heating up and dragging in such hot air that you lose power.
Unlikely to be heat soak (into the inlet) - I ragged my 1600 for about 25 laps in the summer and all that got hot was me!
Coilpack getting hot and cutting out IMO
Hopefully not the ecu coilpack drivers/amps
does kinda seem like its a weak spark for whatever reason, would also explain the dead plugs, did you find out what grade they were? i suppose you could see how the spark looks when its hot and mis behaving and compare it to when it cools down, no crank trigger errors on the ECU log?
Was only chucking in the unlikely possibilities :)Quote:
Originally Posted by Will F