RaceDynamix .. Time Attack Club Pro 2010 .. Project
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From: sheffield my03 sti 600ish/540ish
So... I had a busy day yesterday and pulled the engine out of the scooby after the issues at knockhill. It was planned for a refresh anyway as 20,000 miles since last rebuild and it was needed. Compression was down so there was a definite need to do it now rather than later.
out ..
mostly stripped ..
Not looking great with what looks like bore damage on 2 & 4 from ringlands or rings.
No other issues identified so far with no sparkle in oil or anything else but need to get the pistons out to study the damage to be sure what happened.
The plan is to rebore to 100mm and fit a nice new set of cosworth 100mm oversize pistons and new bearings and put it together next week or two ready to run in for 27th at Brands. Got plenty of time to make sure everything is spot on and clean.
No other major changes are planned but there will be some tidy up of wiring and pipework to make the engine bay tidier. There will also be a revision to the Zen Dry Sump with a custom oil tank to replace the temporary item that we put in last october. This will sit much lower in the car and hold a significantly greater volume of oil. There hasnt been a problem with the dry sump as it is but this has always been the plan by me and Paul at Zen to give it a bigger volume of oil and some revisions to the design of the oil from the early development version I am running to one that allows some on the fly changes to oil pressure valving.
out ..
mostly stripped ..
Not looking great with what looks like bore damage on 2 & 4 from ringlands or rings.
No other issues identified so far with no sparkle in oil or anything else but need to get the pistons out to study the damage to be sure what happened.
The plan is to rebore to 100mm and fit a nice new set of cosworth 100mm oversize pistons and new bearings and put it together next week or two ready to run in for 27th at Brands. Got plenty of time to make sure everything is spot on and clean.
No other major changes are planned but there will be some tidy up of wiring and pipework to make the engine bay tidier. There will also be a revision to the Zen Dry Sump with a custom oil tank to replace the temporary item that we put in last october. This will sit much lower in the car and hold a significantly greater volume of oil. There hasnt been a problem with the dry sump as it is but this has always been the plan by me and Paul at Zen to give it a bigger volume of oil and some revisions to the design of the oil from the early development version I am running to one that allows some on the fly changes to oil pressure valving.
So... I had a busy day yesterday and pulled the engine out of the scooby after the issues at knockhill. It was planned for a refresh anyway as 20,000 miles since last rebuild and it was needed. Compression was down so there was a definite need to do it now rather than later.
out ..
mostly stripped ..
Not looking great with what looks like bore damage on 2 & 4 from ringlands or rings.
No other issues identified so far with no sparkle in oil or anything else but need to get the pistons out to study the damage to be sure what happened.
The plan is to rebore to 100mm and fit a nice new set of cosworth 100mm oversize pistons and new bearings and put it together next week or two ready to run in for 27th at Brands. Got plenty of time to make sure everything is spot on and clean.
No other major changes are planned but there will be some tidy up of wiring and pipework to make the engine bay tidier. There will also be a revision to the Zen Dry Sump with a custom oil tank to replace the temporary item that we put in last october. This will sit much lower in the car and hold a significantly greater volume of oil. There hasnt been a problem with the dry sump as it is but this has always been the plan by me and Paul at Zen to give it a bigger volume of oil and some revisions to the design of the oil pump from the early development version I am running to one that allows some on the fly changes to oil pressure valving.
out ..
mostly stripped ..
Not looking great with what looks like bore damage on 2 & 4 from ringlands or rings.
No other issues identified so far with no sparkle in oil or anything else but need to get the pistons out to study the damage to be sure what happened.
The plan is to rebore to 100mm and fit a nice new set of cosworth 100mm oversize pistons and new bearings and put it together next week or two ready to run in for 27th at Brands. Got plenty of time to make sure everything is spot on and clean.
No other major changes are planned but there will be some tidy up of wiring and pipework to make the engine bay tidier. There will also be a revision to the Zen Dry Sump with a custom oil tank to replace the temporary item that we put in last october. This will sit much lower in the car and hold a significantly greater volume of oil. There hasnt been a problem with the dry sump as it is but this has always been the plan by me and Paul at Zen to give it a bigger volume of oil and some revisions to the design of the oil pump from the early development version I am running to one that allows some on the fly changes to oil pressure valving.
Last edited by dynamix; May 30, 2010 at 09:05 PM.
The bores look pretty good apart from the damage at the top of the stroke from the rings (although I guess the bottom turning point will be the same too) - honing marks are still visible.
ok front pistons out and there is no ring damage on those two.
Just wear on #2 bore at the top of the stroke, maybe lubrication (or lack of it) from running 100% E85 or maybe det as piston 1 has evidence of det on the piston crown now that I have examined it properly.
Also skirts on both front pistons show cracks (worse on #2).
Just wear on #2 bore at the top of the stroke, maybe lubrication (or lack of it) from running 100% E85 or maybe det as piston 1 has evidence of det on the piston crown now that I have examined it properly.
Also skirts on both front pistons show cracks (worse on #2).
rear pistons out and they aint pretty lol
3 has a bent ringland beneath the top ring which was probably stopping the free movement of the ring.
4 is erm ...
a little worse for wear LOL
3 has a bent ringland beneath the top ring which was probably stopping the free movement of the ring.
4 is erm ...
a little worse for wear LOL
I didnt measure it but could tell from the way it sounded when turning over that all wasnt well in that respect. The heavy breathing (the car not me) didnt spell great news either.
Anyway, I knew that before the final at Knockhill, but gave it death for that session anyway and went faster than in qualifying so doubt whether power was down much
It will be back together in time for brands and hopefully this time it will have more than 4 miles running in
Anyway, I knew that before the final at Knockhill, but gave it death for that session anyway and went faster than in qualifying so doubt whether power was down much
It will be back together in time for brands and hopefully this time it will have more than 4 miles running in
Update on engine is that it is completely stripped now and damage is as follows:
- bore damage on 2 and 4
- all four pistons damaged in some way
Everything else is tickety boo including big end and main bearings.
Dropped the block today over at Knight Engineering near northampton for them to rebore and fit a new liner to bore 4 as the damage to that wont quite bore out. Gave it to them with the spare liner from Paul at Zen and a new cosworth 100mm piston which will be going into the build.
They will also be cleaning the block up so it will come back spangly new. The aqua blasting works really well but it will need to be very carefully cleaned afterwards quite a few times to get rid of the material. Hopefully the rebuild will commence next week when the block comes back.
Whilst the engine is out I have tidied up the engine bay and cleaned/sprayed it to make it neater. It has also been a good time to re-route some of the hoses and finally fit the fuelab prodigy fuel pump
FMIC pipes have also been powder coated gloss black to make them much easier to clean than the wrinkle red - this was done by two borthers coating in sheffield and they did a great job
The APS cold air induction kit I had fitted ages ago has also gone as it fouls slightly on the much wider wheels so have gone with the roger clark large trumpet filter and cone within the engine bay.
Afraid no pics at the moment as I am saving them til sorted and back in.
- bore damage on 2 and 4
- all four pistons damaged in some way
Everything else is tickety boo including big end and main bearings.
Dropped the block today over at Knight Engineering near northampton for them to rebore and fit a new liner to bore 4 as the damage to that wont quite bore out. Gave it to them with the spare liner from Paul at Zen and a new cosworth 100mm piston which will be going into the build.
They will also be cleaning the block up so it will come back spangly new. The aqua blasting works really well but it will need to be very carefully cleaned afterwards quite a few times to get rid of the material. Hopefully the rebuild will commence next week when the block comes back.
Whilst the engine is out I have tidied up the engine bay and cleaned/sprayed it to make it neater. It has also been a good time to re-route some of the hoses and finally fit the fuelab prodigy fuel pump
FMIC pipes have also been powder coated gloss black to make them much easier to clean than the wrinkle red - this was done by two borthers coating in sheffield and they did a great job
The APS cold air induction kit I had fitted ages ago has also gone as it fouls slightly on the much wider wheels so have gone with the roger clark large trumpet filter and cone within the engine bay.
Afraid no pics at the moment as I am saving them til sorted and back in.
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From: A small small island...about 4th gear!
Looking forward to seeing some picts Duncan.
I took the cheap way out for the APS FMIC pipework and just nitromore'd the wrinkle red off them. Bit of G3 and buff later and they look reasonably smart.
Not sure with my set up if I should have gone for the bigger pump also?....What you doing with you 044?
Cheers
Col
I took the cheap way out for the APS FMIC pipework and just nitromore'd the wrinkle red off them. Bit of G3 and buff later and they look reasonably smart.
Not sure with my set up if I should have gone for the bigger pump also?....What you doing with you 044?
Cheers
Col
Aqua blasting brings up blocks like new. Mine came back a treat but be warned the remnants of that are a complete bitch to get rid of especially the head stud holes and block to block holes.
Clean, clean, clean, clean and clean again. When you've finished clean it again
Cosworth pistons are proper nice mine are mirror shiny.
Clean, clean, clean, clean and clean again. When you've finished clean it again
Cosworth pistons are proper nice mine are mirror shiny.
colin - the 044 is sold mate sorry
Daz - yeah I remember your experiences but thought it was worth the effort as it looked sparkling when done and while it is out (omg I can't believe i said that again) it makes sense to make it look right too
Daz - yeah I remember your experiences but thought it was worth the effort as it looked sparkling when done and while it is out (omg I can't believe i said that again) it makes sense to make it look right too
More tidy up jobs .... whilst waiting on the block halves to come back so that I can start the rebuild.
Fitted Perrin 25mm front ARB and drop links. Replacing classic whiteline 24mm (fitted upside down !!)
Fitted Fuelab Prodigy Fuel Pump - should do the job perfectly
Re-routed fuel pipework ready for fuel filter to be added
Re-routed Oil Cooler pipework and shortened them (they were far too long)
Tidied all wiring.
Tidied loom.
Cleaned and sprayed the engine bay to make it look more presentable.
Adjusted suspension castor.
Added some sound proofing and heat insulation to the engine bay. yes I know this goes against the grain but I was getting very hot in there in scotland, let alone what brands will be like in the hieght of summer. Also it was just too noisey and I was having trouble hearing the early feedback from tyres/brakes... Having looked at some of the GT2 cars alot of them have this so DEI heat shield acquired and applied:
Also wrapped the headers and up-pipe again (god i'm itchy now lol) cos heat wrap just falls off after a while.
Everything is now clean and ready for an engine to go back in and all engine bits cleaned, polished and ready for assembly.
15 days to go !
Fitted Perrin 25mm front ARB and drop links. Replacing classic whiteline 24mm (fitted upside down !!)
Fitted Fuelab Prodigy Fuel Pump - should do the job perfectly
Re-routed fuel pipework ready for fuel filter to be added
Re-routed Oil Cooler pipework and shortened them (they were far too long)
Tidied all wiring.
Tidied loom.
Cleaned and sprayed the engine bay to make it look more presentable.
Adjusted suspension castor.
Added some sound proofing and heat insulation to the engine bay. yes I know this goes against the grain but I was getting very hot in there in scotland, let alone what brands will be like in the hieght of summer. Also it was just too noisey and I was having trouble hearing the early feedback from tyres/brakes... Having looked at some of the GT2 cars alot of them have this so DEI heat shield acquired and applied:
Also wrapped the headers and up-pipe again (god i'm itchy now lol) cos heat wrap just falls off after a while.
Everything is now clean and ready for an engine to go back in and all engine bits cleaned, polished and ready for assembly.
15 days to go !
ok latest news... and the plan after a huge disappointment on monday being told that the existing block could not be relinered with the liner I supplied. After ringing all and sundry, the only option was to order a new liner from darton in the US but that would take 20 days min. Not an option.
Also contemplated boring out to 101mm and getting some custom pistons - again not an option in the timescales.
Also contemplated running 2.1 stroker in a CDB block or even just nailing a std ej257 casing in there and hoping for the best but neither of these engines are what I want in the car so were dismissed on the basis I didnt want to spend money on something just to get me through Brands.
So.. Mark at Lateral to the rescue with a damaged EJ257 set of block halves and Paul at Zen with some darton liners that I could then get to the machine shop for them to mate the two together. Thanks guys
I picked up the block yesterday from mark and dropped the block and liners over at the machine shop this morning and they will be machining the block to take the ductile steel liners, then flatting the tops of the bores to be ready for the rebuild.
I will pick it up from them on wednesday next week and then go to zen to hone to block to take the new cosworth forged pistons (standard size) and bring all back to mine wed evening to start cleaning it all up (sorry in advance for the mis-use of the dishwasher rachel
) Also picking up the new dry sump pump, bits and custom tank.
Thursday - build starts. This will take all day (and probs late into evening too or maybe next day gulp)
Friday - Test fit dry sump tank into empty engine bay then slot new engine in and bolt everything up ready to fire up late friday.
Saturday - run it in and map it on the new fuel (probably while driving it down to brands in the late afternoon)
Fingers crossed there are no gotchas cos there is no room for movement in timescales
Anyway, it will end up a very strong engine with Lateral internals, ARC race shells and will be good for 700bhp + should I need it. I will continue to run on the MD321V though for this round at least as I think it is very well suited to Brands.
The other block will wait for the custom darton sleeve and will get readied for selling on as a 700bhp capable 2.5 engine.
Also contemplated boring out to 101mm and getting some custom pistons - again not an option in the timescales.
Also contemplated running 2.1 stroker in a CDB block or even just nailing a std ej257 casing in there and hoping for the best but neither of these engines are what I want in the car so were dismissed on the basis I didnt want to spend money on something just to get me through Brands.
So.. Mark at Lateral to the rescue with a damaged EJ257 set of block halves and Paul at Zen with some darton liners that I could then get to the machine shop for them to mate the two together. Thanks guys
I picked up the block yesterday from mark and dropped the block and liners over at the machine shop this morning and they will be machining the block to take the ductile steel liners, then flatting the tops of the bores to be ready for the rebuild.
I will pick it up from them on wednesday next week and then go to zen to hone to block to take the new cosworth forged pistons (standard size) and bring all back to mine wed evening to start cleaning it all up (sorry in advance for the mis-use of the dishwasher rachel
) Also picking up the new dry sump pump, bits and custom tank.Thursday - build starts. This will take all day (and probs late into evening too or maybe next day gulp)
Friday - Test fit dry sump tank into empty engine bay then slot new engine in and bolt everything up ready to fire up late friday.
Saturday - run it in and map it on the new fuel (probably while driving it down to brands in the late afternoon)
Fingers crossed there are no gotchas cos there is no room for movement in timescales
Anyway, it will end up a very strong engine with Lateral internals, ARC race shells and will be good for 700bhp + should I need it. I will continue to run on the MD321V though for this round at least as I think it is very well suited to Brands.
The other block will wait for the custom darton sleeve and will get readied for selling on as a 700bhp capable 2.5 engine.
ok latest news... and the plan after a huge disappointment on monday being told that the existing block could not be relinered with the liner I supplied. After ringing all and sundry, the only option was to order a new liner from darton in the US but that would take 20 days min. Not an option.
Also contemplated boring out to 101mm and getting some custom pistons - again not an option in the timescales.
Also contemplated running 2.1 stroker in a CDB block or even just nailing a std ej257 casing in there and hoping for the best but neither of these engines are what I want in the car so were dismissed on the basis I didnt want to spend money on something just to get me through Brands.
So.. Mark at Lateral to the rescue with a damaged EJ257 set of block halves and Paul at Zen with some darton liners that I could then get to the machine shop for them to mate the two together. Thanks guys
I picked up the block yesterday from mark and dropped the block and liners over at the machine shop this morning and they will be machining the block to take the ductile steel liners, then flatting the tops of the bores to be ready for the rebuild.
I will pick it up from them on wednesday next week and then go to zen to hone to block to take the new cosworth forged pistons (standard size) and bring all back to mine wed evening to start cleaning it all up (sorry in advance for the mis-use of the dishwasher rachel ) Also picking up the new dry sump pump, bits and custom tank.
Thursday - build starts. This will take all day (and probs late into evening too or maybe next day gulp)
Friday - Test fit dry sump tank into empty engine bay then slot new engine in and bolt everything up ready to fire up late friday.
Saturday - run it in and map it on the new fuel (probably while driving it down to brands in the late afternoon)
Fingers crossed there are no gotchas cos there is no room for movement in timescales
Anyway, it will end up a very strong engine with Lateral internals, ARC race shells and will be good for 700bhp + should I need it. I will continue to run on the MD321V though for this round at least as I think it is very well suited to Brands.
The other block will wait for the custom darton sleeve and will get readied for selling on as a 700bhp capable 2.5 engine.
Also contemplated boring out to 101mm and getting some custom pistons - again not an option in the timescales.
Also contemplated running 2.1 stroker in a CDB block or even just nailing a std ej257 casing in there and hoping for the best but neither of these engines are what I want in the car so were dismissed on the basis I didnt want to spend money on something just to get me through Brands.
So.. Mark at Lateral to the rescue with a damaged EJ257 set of block halves and Paul at Zen with some darton liners that I could then get to the machine shop for them to mate the two together. Thanks guys
I picked up the block yesterday from mark and dropped the block and liners over at the machine shop this morning and they will be machining the block to take the ductile steel liners, then flatting the tops of the bores to be ready for the rebuild.
I will pick it up from them on wednesday next week and then go to zen to hone to block to take the new cosworth forged pistons (standard size) and bring all back to mine wed evening to start cleaning it all up (sorry in advance for the mis-use of the dishwasher rachel
) Also picking up the new dry sump pump, bits and custom tank.Thursday - build starts. This will take all day (and probs late into evening too or maybe next day gulp)
Friday - Test fit dry sump tank into empty engine bay then slot new engine in and bolt everything up ready to fire up late friday.
Saturday - run it in and map it on the new fuel (probably while driving it down to brands in the late afternoon)
Fingers crossed there are no gotchas cos there is no room for movement in timescales
Anyway, it will end up a very strong engine with Lateral internals, ARC race shells and will be good for 700bhp + should I need it. I will continue to run on the MD321V though for this round at least as I think it is very well suited to Brands.
The other block will wait for the custom darton sleeve and will get readied for selling on as a 700bhp capable 2.5 engine.
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From: MY 10s blobeye 10.87@132 2.35/TO4Z next
- the plan was to have had the block back on monday and to spend today building it but that got shot out of the ground on monday lunchtime.i am sure it can be done if the linered block comes back to me next wednesday.
Clive
LOL Not at all Peter but I always like to have a backup plan. At the moment I have a 2.0L CDB sat here doing nothing but I prefer the 2.5 and if Duncan's old block becomes available it would make sense to have that as a spare.
I would also say that if you think an engine is going to last forever at this level you're sorely mistaken.
I would also say that if you think an engine is going to last forever at this level you're sorely mistaken.
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From: MY 10s blobeye 10.87@132 2.35/TO4Z next
LOL...that why we should plan a strip down every season or so.I know fine well it won't last forever so i think its better to have a strip down rather than after a blown engine or similar.