My cossie updated
30-06-2008, 06:12 PM
#203
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30-06-2008, 07:04 PM
#210
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30-06-2008, 07:05 PM
#211
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30-06-2008, 07:54 PM
#213
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So the car was collected and I was happy with my new turbo!
The way it drives now is something that I thought was impossible with a T4 but after a lot of hard work and alot of time testing we have achieved what I think is the the best of both worlds in that I have a low comp motor that can use any fuel available and make its power and is still one of the most responsive high power cossies I have seen.
With all this in mind to say I was excited with the Daddy Thash coming up was an understatement but things didnt go well leading up to the thrash.
I was thru at AVA on week leading up to the thrash for yet more testing trying to find more power and fine tuning things while I was helping Alan one day I noticed water spraying down the side of the block while on the higher rev points(held at 7k plus for ten seconds checking for det and measuring EGT etc).
Things were allowed to cool and the head bolts/gasket checked and upon inspection we discovered that some of the long studs were not at the correct torque settings, these wouldnt reqtorque so the desicion was taken to whip the head off, replace the gasket and replace/inspect the longstuds(Mountune).
We were shocked to find that two of the six stunds had stretched
At the time we were rushing to get things built back up so didnt really have time to investigate too much, the engine was put back together and then re-run on the rollers again................
Disaster struck on the very first power test with the brand new studs stretching again
The rocker cover was whipped was off and with the studs torqued over the approved settings they seemed to hold at 500 ATW now.
The car was taken off the rollers and stuck on the ramp for a final check only to find the petrol tank leaking
A new tank was found on the double and fitted and the care was ready two days before the thrash.
The way it drives now is something that I thought was impossible with a T4 but after a lot of hard work and alot of time testing we have achieved what I think is the the best of both worlds in that I have a low comp motor that can use any fuel available and make its power and is still one of the most responsive high power cossies I have seen.
With all this in mind to say I was excited with the Daddy Thash coming up was an understatement but things didnt go well leading up to the thrash.
I was thru at AVA on week leading up to the thrash for yet more testing trying to find more power and fine tuning things while I was helping Alan one day I noticed water spraying down the side of the block while on the higher rev points(held at 7k plus for ten seconds checking for det and measuring EGT etc).
Things were allowed to cool and the head bolts/gasket checked and upon inspection we discovered that some of the long studs were not at the correct torque settings, these wouldnt reqtorque so the desicion was taken to whip the head off, replace the gasket and replace/inspect the longstuds(Mountune).
We were shocked to find that two of the six stunds had stretched
At the time we were rushing to get things built back up so didnt really have time to investigate too much, the engine was put back together and then re-run on the rollers again................
Disaster struck on the very first power test with the brand new studs stretching again
The rocker cover was whipped was off and with the studs torqued over the approved settings they seemed to hold at 500 ATW now.
The car was taken off the rollers and stuck on the ramp for a final check only to find the petrol tank leaking
A new tank was found on the double and fitted and the care was ready two days before the thrash.
Last edited by rapidcossie; 30-06-2008 at 08:06 PM.
30-06-2008, 08:35 PM
#217
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Met Tom and Alan and headed down to the thrash the day before it was on, hadnt been to Brunters so was looking forward to it even tho we knew the car wasnt really 100%.
After a long trip we stopped at JEMS(John Edwards) for a chat and to drop some parts off.
Must say John is an amazing guy and gave us a wee tour of the the workshop and the run down on his monster spec YB's!
After that we headed to the hotel ( Im not spleeping in the van again!) to be greeted by a slighty drunk Pf Nick in the car park and see Yum and Lee Tib;s 3 door there already.
We said hello to everyone and sorted out the rooms and some grub, had a laugh at the bar but didnt drink as I was planning on hitting 190 early the next morning!
Up early the next morning(didnt pay for my room, good old good night sleep guranttee
) and headed to Brunters only for it to be like pea soup! Honestly you could see a foot in front of your face!Cracked on and go the cars off the trailors and gave it a quick check over, it seems like water had got into the TPS as it was running really lumpy at idle and generally didnt want to start.
After a quick wash it was time for a few rolls at the cafe
When we all reatuned from the cafe it was time for all the pics of the cars and drivers.
Sorry I dont have any proper pics but I was too busy with the car to take any.
Last edited by rapidcossie; 30-06-2008 at 08:43 PM.
30-06-2008, 08:54 PM
#219
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Great read mate.....
Love the way you just keep trying to get more power out of your car rather that just banging a bigger turbo on like most people......
I really am thinking about traveling back up to ava to get my car setup when it eventually gets finished..Car'nt wait to feel the power of the T4..
Am i right in thinking 485atw was the highest power you got out of your old T4 i bought....( Not that im expecting anywere near that..)
I did see you at croft and was going to pop over for a chat but you were talking to other people so i did not want to interupt..
Love the way you just keep trying to get more power out of your car rather that just banging a bigger turbo on like most people......
I really am thinking about traveling back up to ava to get my car setup when it eventually gets finished..Car'nt wait to feel the power of the T4..
Am i right in thinking 485atw was the highest power you got out of your old T4 i bought....( Not that im expecting anywere near that..)
I did see you at croft and was going to pop over for a chat but you were talking to other people so i did not want to interupt..
30-06-2008, 08:59 PM
#220
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My plan for this thrash was the same as the previous year so I asked to go first on the timing gear hoping to get three solid runs then remove all the mirrors etc AFTER the first set of runs.
So about 11am I got helment on and set off for the first time up the runway, turned off half way so I could come round the bottom bend and then get the foot in for the runs!
The runway was soaking so getting round the bend and getting the throttle wide open smoothly was proving difficult as it was wheelspinng and I even spun a few times.
First run and braked with plenty room and the GPS showed 184.9 so I was pretty happy but on removing the helmet and driving back to the start I could smell coolant so knew I had probs, I phone Tom and told him about this and then just parked the car at the van so we could have a look asap.
Opened the bonnet to be greeted with a soaking engine bay and coolant sprayed everywhere(defo headgasket/longstuds failure) I was gutted
After having as good a look as possible at the time and checking the data logging for coolant temps etc we decicded to top the coolant up and have another go.
More wheelspinning in 3rd and 4th and managed 186. something with more coolant being lost
Checked eveything again and it seemed ok( coolant max 92 and ACT max 35) so I decided to have another go although I knew I was now risking the engine.
On the last run I kept the foot in and managed a massive 188.1 and gave the ABS a good test at the end of the runway.
Drove back quite happy reaching this but was gutted that the car was now damaged and the runway was driying as I think I could have squeezed abot more out of the runs on acelleration with more grip and a dry braking area.
Enough was enough tho and with a engine that was still in one piece the car was loaded back onto the trailor for our trip home.
So about 11am I got helment on and set off for the first time up the runway, turned off half way so I could come round the bottom bend and then get the foot in for the runs!
The runway was soaking so getting round the bend and getting the throttle wide open smoothly was proving difficult as it was wheelspinng and I even spun a few times.
First run and braked with plenty room and the GPS showed 184.9 so I was pretty happy but on removing the helmet and driving back to the start I could smell coolant so knew I had probs, I phone Tom and told him about this and then just parked the car at the van so we could have a look asap.
Opened the bonnet to be greeted with a soaking engine bay and coolant sprayed everywhere(defo headgasket/longstuds failure) I was gutted
After having as good a look as possible at the time and checking the data logging for coolant temps etc we decicded to top the coolant up and have another go.
More wheelspinning in 3rd and 4th and managed 186. something with more coolant being lost
Checked eveything again and it seemed ok( coolant max 92 and ACT max 35) so I decided to have another go although I knew I was now risking the engine
.On the last run I kept the foot in and managed a massive 188.1 and gave the ABS a good test at the end of the runway.
Drove back quite happy reaching this but was gutted that the car was now damaged and the runway was driying as I think I could have squeezed abot more out of the runs on acelleration with more grip and a dry braking area.
Enough was enough tho and with a engine that was still in one piece the car was loaded back onto the trailor for our trip home.
Last edited by rapidcossie; 30-06-2008 at 09:11 PM.
30-06-2008, 09:13 PM
#222
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On arriving back in Glasgow I we unloaded the car and I headed home to Falkirk but something wasnt right and there was a strange knocking from the engine, I carred on and drove it the 30 miles home which it did no problem and the next phoned AVA to sort out getting it all fixed.
A week later the car was on a flat bed to spend the winter tucked up in the sheds at AVA and to decied where the engine would go next.
A week later the car was on a flat bed to spend the winter tucked up in the sheds at AVA and to decied where the engine would go next.
30-06-2008, 09:14 PM
#223
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30-06-2008, 09:24 PM
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In no hurry for the car back as I wanted it to miss the salt on our Scottish roads it was left untouched until after new year 2008.
After the new year the engine was pulled out for inspection.
The descion was taken to fully freshen and upgrade the engine along with repairing/replacing any parts that were needed so new shells and rings were ordered.
Shells are ACL race series.
Some new long studs were souced(not mountune) and a triple layer steel head gasket to adress the problem of the head lifting on the high boost runs.
The new head gasket came with special fire rings but that left us with the problem of the original wire rings.
The block was decked to remove these and also to raise the comp ratio as we have still never heard the car detting.
The knocking turned out to be number 4 piston picking up its skirt in the block(furthest away from oil pump so we think it was overheating on the top speed runs)
To fix this issue we had the block mahined and some oil spray jets fitted instead of the 4x4 spray bar being used.
the gine ws ready to go back together and the block was sent for honing, but it wasnt good news from the macine shop.
After the bores where honed and cleaned up a crack was noticed on cylinder number 3
After the new year the engine was pulled out for inspection.
The descion was taken to fully freshen and upgrade the engine along with repairing/replacing any parts that were needed so new shells and rings were ordered.
Shells are ACL race series.
Some new long studs were souced(not mountune) and a triple layer steel head gasket to adress the problem of the head lifting on the high boost runs.
The new head gasket came with special fire rings but that left us with the problem of the original wire rings.
The block was decked to remove these and also to raise the comp ratio as we have still never heard the car detting.
The knocking turned out to be number 4 piston picking up its skirt in the block(furthest away from oil pump so we think it was overheating on the top speed runs)
To fix this issue we had the block mahined and some oil spray jets fitted instead of the 4x4 spray bar being used.
the gine ws ready to go back together and the block was sent for honing, but it wasnt good news from the macine shop.
After the bores where honed and cleaned up a crack was noticed on cylinder number 3
Last edited by rapidcossie; 30-06-2008 at 09:30 PM.
30-06-2008, 09:35 PM
#225
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After trying to find a replacement block we decided to stick with the 99 block and do some modifications.
The bore that cracked had a tinner wall than any other 200 block we measured sowe had a 5mm steel liner specially made and fitted to the block( this one wont crack again!)
Liner can just be seen in this pic.
The bore that cracked had a tinner wall than any other 200 block we measured sowe had a 5mm steel liner specially made and fitted to the block( this one wont crack again!)
Liner can just be seen in this pic.
30-06-2008, 09:41 PM
#226
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Alot of other modification went into the block but I cant post this publicly as the technique was partly helped by people who dont want it known but needless to say I now have a pretty special block.
The engine is now ready to be re assembled with a new oil pump and a freshly overhauled cylinder head.
The engine is now ready to be re assembled with a new oil pump and a freshly overhauled cylinder head.
Last edited by rapidcossie; 30-06-2008 at 09:44 PM.
30-06-2008, 09:47 PM
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While that was being done I got the car out of the shed and gave it a spring clean!
engine was refitted and fired up.
Had the SPA sensors moved off the engine to try and solve the issues I was having.
engine was refitted and fired up.
Had the SPA sensors moved off the engine to try and solve the issues I was having.
30-06-2008, 09:54 PM
#229
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And that ladies and gents is how the car stands at this moment in time!
Attented the Abderdeen RSOC regional day.....
toughy's 22B
Kev and Stu's safs.
Nice golf that was there.
Attented the Abderdeen RSOC regional day.....
toughy's 22B
Kev and Stu's safs.
Nice golf that was there.
30-06-2008, 10:03 PM
#233
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30-06-2008, 10:08 PM
#238
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