BC Racing Time Attack Impreza #6
04 May 2011, 10:01 PM
#211
Awesome on board video Duncan.
And your car is quite popular also on Speedhunters
http://speedhunters.com/archive/2011...g-impreza.aspx
Jura
And your car is quite popular also on Speedhunters
http://speedhunters.com/archive/2011...g-impreza.aspx
Jura
14 May 2011, 07:02 AM
#213
Just a small update before I head the 8 hours up the road to Knockhill for round 2 ...
Due to lack to time to devote to the car because of work I have decided not to change the headgasket for this round and will nurse it gently through the day up there in order to give it the best chance of surviving if the HG was starting to go - there is some debate on this so fingers crossed it will be fine
New ID 1600cc injectors arrived on thursday so it was time to take out the old ID1000 injectors (these are sold now) and get the new ones in. Easy enough job with the parallel fuel rails but as the injectors are slightly taller, the rails need spacing up. The spacers are provided with them so all good.
These will get around the issue of the mixture weakening at the top end and provide headroom for more boost over the 1.9 bar I was limiting myself to and allow nitrous to be added on top to give a nice 50bhp shot of power as well as helping spool the already very spooly turbo No time to dyno it yet so will have to map it up there today/tomorrow and get it on the dyno soon to see if it will break the 700bhp mark on the std heads/cams.
Zen LSD now refitted after a slight mishap last month with the incorrect final drive ratio in there and the car trying to kill me whenever full power was applied LOL. This will be a big improvement over the std diff particularly at the hairpin in knockhill.
Also added a nice vent to the drivers door to allow some air in there. Anyone that is considering stripping the interior and fitting perspex windows needs to consider how hot it gets in there ... flipping hot !! and this will hopefully stop me withering away
.. tidied up the front bumper:
Hopefully the weekend will be good If you are heading up to knockhill then please feel free to drop by in the paddock 
Due to lack to time to devote to the car because of work I have decided not to change the headgasket for this round and will nurse it gently through the day up there in order to give it the best chance of surviving if the HG was starting to go - there is some debate on this so fingers crossed it will be fine
New ID 1600cc injectors arrived on thursday so it was time to take out the old ID1000 injectors (these are sold now) and get the new ones in. Easy enough job with the parallel fuel rails but as the injectors are slightly taller, the rails need spacing up. The spacers are provided with them so all good.
These will get around the issue of the mixture weakening at the top end and provide headroom for more boost over the 1.9 bar I was limiting myself to and allow nitrous to be added on top to give a nice 50bhp shot of power as well as helping spool the already very spooly turbo
No time to dyno it yet so will have to map it up there today/tomorrow and get it on the dyno soon to see if it will break the 700bhp mark on the std heads/cams.Zen LSD now refitted after a slight mishap last month with the incorrect final drive ratio in there and the car trying to kill me whenever full power was applied LOL. This will be a big improvement over the std diff particularly at the hairpin in knockhill.
Also added a nice vent to the drivers door to allow some air in there. Anyone that is considering stripping the interior and fitting perspex windows needs to consider how hot it gets in there ... flipping hot !! and this will hopefully stop me withering away
.. tidied up the front bumper:
Hopefully the weekend will be good
If you are heading up to knockhill then please feel free to drop by in the paddock
16 May 2011, 10:06 PM
#216
Back from Knockhill Racing circuit in scotland today after Round 2 of 2011 yesterday up there.
Had a ball and great company but had mixed experiences
The suspected head gasket issue that stopped the use of nitrous in the final at oulton was not able to be fixed in time for knockhill as I was too busy with work to be able to spare a day + to pull the engine and fix (thanks very much people for keeping me busy btw - ) so I decided to see how it goes up there and work progressively through the day up there to help nurse it through the day with limited stresses.
Julian, Daz Davies and I travelled up together on saturday and arrived at the track on sat late pm to meet with Bren and the BC guys, Pavlo, Steve F and team mate Paul Doyle and his team. It is a long long trip but great company makes it almost fly by. The weather was dry but the biting wind was cold as and we knew getting heat into the tyres will be the issue of the weekend.
With the car unloaded and plans made for the sunday we set about heading to the hotel to grab some food and chat with team mates, friends, supporters and competitors - great atmosphere at TA events.
Sunday morning was dry but cold, really cold with a grey sky indicating that it wouldnt be dry for long. We had fingers crossed that it would stay dry but in vein, there was moisture in the air for the early warmup and practice session which were a good chance to give Julian some passenger laps around knockhill and also test the Zen LSD in anger for the first time. the diff was a revelation and made a huge difference to the predictability of the car when drifting on power out of the hairpin and also gave drive when previously i was spinning wheels. Love it - thanks Paul
So warm up and practice done, the only issue was overheating when coming back into the pits from fluid loss. no water spray from the overflow but the water was going somewhere ... we managed it but at only 1.3 bar for the first session and 1.5 bar for the second session it was going to be an issue. there was no alternative to take it gentle and manage track time and heat in order to get it working enough to get points for the championship. There was no way I could out drive locals or those with substantially higher power with me limited to 1.5 bar of boost.
Paul from Zen was there to help get the best from the suspension set up, I always trust Pauls advise on how to set the car up and working with him in the paddock on setting up the cars handling is a pleasure that I missed last year.
Qualifying brought the rain and the track changed from being slippery to being an ice rink and as we all tip toed round for the laps early in the session setting times as best we could, the clouds moved on and in the space of 1 lap there was grip where there wasnt before and it was a race to get some fast laps in asap on a track that was coming to us. I managed 3rd place in qualifying which was very pleasing but helped by Gav Renshaw being absent from the latter part of the session for some weird issue. Still suffering from the HG issue but with a car that felt good on track it was handling as good as it could and I was enjoying 4 wheel drifting out of the hairpin
The final was a dry track again and I knew I would be up against it with 3 locals and a very fast Gav out there ... 5th was as good as I could expect but points are points and come the end of the season I would prefer to drop a point scoring round rather than a nil point round. Not disappointed really as the extra power would have closed the gap on the winner a lot down the two straights as the car felt good round the rest of the track albeit driving around the limitations of the tyres.
I was grateful to receive the SIDC prize for fastest Subaru though - thanks
In Car Video from the final :
http://vimeo.com/23808342
The tradition for knockhill is to have a few beers afterwards ... we did
Thanks to Julian and Daz Davies for great company for the weekend and for the work in the paddock throughout the weekend, Bren and the BC team for their support and ecnouragement before and during the weekend - more power and more points for Brands in June
Also big thanks to technical input from Paul Blamire - set up is often overlooked and I thank him for the detailed discussions and advice on the suspension and tyres.
Also thanks to Steve @ Bright Green for making the car shiney 8)
Thanks also to all my other sponsors and supporters for their ongoing support
Job for tomorrow ... engine out and start the HG fix
Had a ball and great company but had mixed experiences
The suspected head gasket issue that stopped the use of nitrous in the final at oulton was not able to be fixed in time for knockhill as I was too busy with work to be able to spare a day + to pull the engine and fix (thanks very much people for keeping me busy btw -
) so I decided to see how it goes up there and work progressively through the day up there to help nurse it through the day with limited stresses.Julian, Daz Davies and I travelled up together on saturday and arrived at the track on sat late pm to meet with Bren and the BC guys, Pavlo, Steve F and team mate Paul Doyle and his team. It is a long long trip but great company makes it almost fly by. The weather was dry but the biting wind was cold as and we knew getting heat into the tyres will be the issue of the weekend.
With the car unloaded and plans made for the sunday we set about heading to the hotel to grab some food and chat with team mates, friends, supporters and competitors - great atmosphere at TA events.
Sunday morning was dry but cold, really cold with a grey sky indicating that it wouldnt be dry for long. We had fingers crossed that it would stay dry but in vein, there was moisture in the air for the early warmup and practice session which were a good chance to give Julian some passenger laps around knockhill and also test the Zen LSD in anger for the first time. the diff was a revelation and made a huge difference to the predictability of the car when drifting on power out of the hairpin and also gave drive when previously i was spinning wheels. Love it - thanks Paul
So warm up and practice done, the only issue was overheating when coming back into the pits from fluid loss. no water spray from the overflow but the water was going somewhere ... we managed it but at only 1.3 bar for the first session and 1.5 bar for the second session it was going to be an issue. there was no alternative to take it gentle and manage track time and heat in order to get it working enough to get points for the championship. There was no way I could out drive locals or those with substantially higher power with me limited to 1.5 bar of boost.
Paul from Zen was there to help get the best from the suspension set up, I always trust Pauls advise on how to set the car up and working with him in the paddock on setting up the cars handling is a pleasure that I missed last year.
Qualifying brought the rain and the track changed from being slippery to being an ice rink and as we all tip toed round for the laps early in the session setting times as best we could, the clouds moved on and in the space of 1 lap there was grip where there wasnt before and it was a race to get some fast laps in asap on a track that was coming to us. I managed 3rd place in qualifying which was very pleasing but helped by Gav Renshaw being absent from the latter part of the session for some weird issue. Still suffering from the HG issue but with a car that felt good on track it was handling as good as it could and I was enjoying 4 wheel drifting out of the hairpin
The final was a dry track again and I knew I would be up against it with 3 locals and a very fast Gav out there ... 5th was as good as I could expect but points are points and come the end of the season I would prefer to drop a point scoring round rather than a nil point round. Not disappointed really as the extra power would have closed the gap on the winner a lot down the two straights as the car felt good round the rest of the track albeit driving around the limitations of the tyres.
I was grateful to receive the SIDC prize for fastest Subaru though - thanks
In Car Video from the final :
http://vimeo.com/23808342
The tradition for knockhill is to have a few beers afterwards ... we did
Thanks to Julian and Daz Davies for great company for the weekend and for the work in the paddock throughout the weekend, Bren and the BC team for their support and ecnouragement before and during the weekend - more power and more points for Brands in June
Also big thanks to technical input from Paul Blamire - set up is often overlooked and I thank him for the detailed discussions and advice on the suspension and tyres.
Also thanks to Steve @ Bright Green for making the car shiney 8)
Thanks also to all my other sponsors and supporters for their ongoing support
Job for tomorrow ... engine out and start the HG fix
Last edited by dynamix; 18 May 2011 at 09:38 PM.
17 May 2011, 09:52 PM
#218
Spent a few hours today taking the engine out and stripping it down - slight head gasket issue on cylkinder 4 so an easy fix.
but ... seeing as there is time there will be a slight upgrade
It seems a good time to get the kelford cams in there and no with the ID 1600 cc injectors it will allow for substantially more power. Aim now is to take it beyond 700 for Brands.Spare engine build is also going ahead which hopefully I wont need but it will be there as a back up plan and sold on if not required
18 May 2011, 06:58 AM
#221
There is no such thing as bullet proof performance at this power level unfortunately but every measure will be taken this time to make sure they stand a fighting chance of lasting.
Paul Finch will be skimming and crack testing the heads and working them to allow fitment of the Kelford cams before they get refitted with Cometic Phuzion head gaskets. Lots of very high power cars have run these successfully so I think they have to be worth a shot now.
19 May 2011, 07:57 AM
#223
It should do Kosta.
Heads were dropped over to Paul Finch yesterday for cleaning and skimming to give a nice flat mating surface. He also also relieving some metal around the buckets to allow for the fitment of the Kelford R199-C cams as these just touch the area around the valves when rotating so need grinding away. Paul also crack tested them and there are none there
The heads are not being ported or polished yet as I want to see the exact difference attributable to the cams without complicating it with other airflow related mods.
Block and pistons are mint too and bores are perfect with honing marks still visible. I am not stripping this down as that would mean replacing all bearings. The block faces will be cleaned though and then put back together in the next couple of weeks once the Cometic Phuzion head gaskets arrive from the states.
On the plus side the tactics on the event seemed to work as I am still leading the points table after round 2
Heads were dropped over to Paul Finch yesterday for cleaning and skimming to give a nice flat mating surface. He also also relieving some metal around the buckets to allow for the fitment of the Kelford R199-C cams as these just touch the area around the valves when rotating so need grinding away. Paul also crack tested them and there are none there
The heads are not being ported or polished yet as I want to see the exact difference attributable to the cams without complicating it with other airflow related mods.
Block and pistons are mint too and bores are perfect with honing marks still visible. I am not stripping this down as that would mean replacing all bearings. The block faces will be cleaned though and then put back together in the next couple of weeks once the Cometic Phuzion head gaskets arrive from the states.
On the plus side the tactics on the event seemed to work as I am still leading the points table after round 2
21 May 2011, 07:47 AM
#226
Peter - good to see you too mate 8)
08 June 2011, 10:21 PM
#227
Been a bit quiet on this project lol
But been gathering bits for the engine reconstruction after the head gasket issues and now ready to go
- Cosworth High Tensile Head Studs
- Cosworth High RPM Valve Springs
- Heads skimmed and worked for the kelford cams by Finch Motorsport
- Adjustable cam pulleys by CDF racing
- some new gaskets and cosworth timing belt from lateral
- Cometic Phuzion head gaskets
Build starts on saturday and hoping to get it on the dyno on wednesday to see what difference the cams make
But been gathering bits for the engine reconstruction after the head gasket issues and now ready to go
- Cosworth High Tensile Head Studs
- Cosworth High RPM Valve Springs
- Heads skimmed and worked for the kelford cams by Finch Motorsport
- Adjustable cam pulleys by CDF racing
- some new gaskets and cosworth timing belt from lateral
- Cometic Phuzion head gaskets
Build starts on saturday and hoping to get it on the dyno on wednesday to see what difference the cams make
16 June 2011, 08:45 PM
#235
Scooby Regular
