dynamix

iTrader: (3)

nope 2.5 @006 STi

it is this one (will put picture up again )

Tone Loc

iTrader: (1)

LOL... i have a feeling of Deja Vu. See posts 2 and 3 Graham, you feeling ok

Tony.

dynamix

iTrader: (3)

Okay - aeroquip gubbins ordered for catch can drain to sump and booked in to get this done. i would do it myself but I need a few other bits done at the same time and it is easier to do them all on the ramp rather than lying down and trying to do it upside down

911

Tony:
The Senior moments will come to you too soon enough.......

dynamix

iTrader: (3)

APS - 70mm cold Air Kit - Arrived bright and early this morning

thanks to Lloyd @ JRD Services for this - top service mate

A few more bits to sort today and all will be in place ready for the fitting & mapping days..... not panicking quite so much now.

dynamix

iTrader: (3)

well, okay not really bling but I got and fitted a Roger Clark Motorsport Radiator Cooling plate 8)

Nice little stainless steel number with RCM badge ... will match the RCM Catch Tank that goes on soon

Will get a pic of it in place shortly

dynamix

iTrader: (3)

These arrived 8)



along with some other decals to go on for the event.

40 ... my age

dynamix

iTrader: (3)

Firstly the Roger Clark Motorsport Radiator Cooling Plate

Took all of 1 minute to fit and from what I can see from water temps might have reduced the temps but it is always difficult to tell. Looks pretty though.

Carbon is so last year



A close up on the badge...


Because of the weight gain that Gerry H pointed out I thought I ought to strip some weight to compensate. The underbonnet sound proofing was stripped (read ripped) off to bring it back to sqaure one. Who knows this might make the engine bay cooler aswell.

dynamix

iTrader: (3)

Well, I spent the day down at Mocom Racing making some changes that have been well needed.

The agenda for the day was:

1. remove standard airbox
2. fit APS 70mm Cold Air Induction Kit
3. adjust maps to compensate for the greater airflow
4. fit front splitter
5. fit 800 cc injectors
6. map again to suit these

Quite a lot .... so I got there bright and early at 9am armed with some milk and sugar and plenty of smokes ... this was going to be a squeeze to get all of this done in the time available before I needed to be home so Rachel could go out on the razz.

Zak set out to work straight away unbolting the standard airbox and trying to thread the needle that is the APS kit into the given hole in the inner wing so that the air intake is isolated away from hot engine temperatures.



This was a bit of a tight fit but Zak and Luke soon had this sussed by moving the ABS unit for a moment just so that they could twist the L shaped pipe into place and bolt it to the inner wing.

While they were busy, I was actually getting my hands dirty too by removing the fixing at the bottom of the bumper and marking holes to drill for the new front lip spoiler (from www.ScottLowe.co.uk - thanks Scott ) Then with more than a little fear I started to drill into the bodywork to allow for the supplied nuts and rubber expander nuts to slot through. Supposedly this is a 10 minute job, which I am sure it would be if the bolt were 1 mm longer. They werent :x



So... a bot of lateral thinking was needed and a piece of gravel

Now armed with a piece of gravel I could fit that into the end of the 8mm socket to enable me to push the bolt up at the same time as twisting ... worked a treat

Within a few minutes the splitter was now in place



At the same time, Zak had finished fitting the induction kit and we were ready to start mapping.





Well almost ready, firstly Zak has to turn the floor of my car into a mass of wiring, cables and det cans.



We even had a little helper trying to assist with bolting the necessary sensors and safety equipment.



Mapping was detailed and very time consuming as when the induction kit is put on (particularly one with a larger than OE diameter) the MAF reading are well out as the air flow is slower for a given voltage and in this case leaned the engine out by the order of around 30% in parts of the map - just shows how restrictive the std airbox can be at certain power levels.

The ECU std map allows for up to 300 grams/sec on my model for a given voltage through the sensor. With painstaking accuracy and attention to detail in ensuring that the curve was smooth and provided the right fuelling all the way up the range, Zak finally got this to scale to around 465 grams/sec - now I just need a turbo capable of pushing that much into the engine....

Previous to today, my injectors was maxxed out at 1.45 bar (see post 1) but now with the increased airflow, they were maxxing out at 1.2 bar and flowing more air than before too. Could this be right - same power less boost ? Doubting it, the maps were done and redone several times to get every last ounce of smoothness to them before calling it a day. We had taken a long time getting these spot on that the 3 hours to change the injectors and remap had been eaten into.

A few more tweaks later we were heading back to Mocom racing for a cup of coffee and to pack up for the day - and to arrange for me to go there again next friday to get the injectors done.

The results were astonishing, we had got the same power as before but with 0.25 bar less boost

This bodes extremely well for when we add the boost back in (and a little more ) next week. Maybe my guess of another 20bhp was a little conservative but whatever 0.25 bar works out to be it will certainly be fun

Car got back home after doing a quick dyno run to confirm our thoughts about the power - I havent fully compared the two but this one worked out at 297 whp (on vpower alone) but with a car full of tool kits and junk. I will do a proper comparison at the weekend without a full car.

ScoobyWeb

Nice write-up Duncan, The front splitter makes a whole load of difference on the Hawkeye. always thought that the hawkeye front end had lost its aggressiveness compared to the blobeye. It was the first thing that I did to mine.
I think once this round of mods are complete it will possibly be near the limit on standard internals, especially with the amount of track use it gets, what do you think? Hope everything stays intact for the ring trip.


Chris.

dynamix

iTrader: (3)

It is really hard to say as there are not many that have pushed the std internals this far, but I am reliably informed:

- pistons will be okay for up to 500 if det free mapping
- rods will be okay for similar if not over revved
- liners will cope with 500 lb/ft

Everything I have done has been done so with an absolute paranoia about det - this, I am told, is what will kill the engine internals quicker with the 06 chocolate pistons.

Having said that, If I took the view that the pistons, rods, rings, bearings need to be replaced in order to get near my target, that is a shed load of money - maybe 3k. With a short engine being £1500, maybe they can be treated as consumeables and a development exercise to try and find out what they safe (ish) limit is by making the steps in power/torque in stages and testing, logging, using on track, maintaining at each step.

AT the very least it is helping me learn about how this engine and ecu responds to tuning - so far very well and with some bigger injectors next week, we will be able to get boost levels back up.

As an aside, charge temps on cruise:
- std air box and snorkle = ambient +6
- std air box and cold air feed = ambient + 3
- std air box and cold air feed and throttle coolant re-route = ambient +2
- APS kit & throttle coolant reroute = ambient +0C

Floyd

iTrader: (9)

I've seen a similar report elsewhere but it was much better written

I do worry about the standard internals myself. I could go 550 on the injectors and up the boost but the TMIC may split as well as too much strain on the bottom end for the track work I do.

F

dynamix

iTrader: (3)

copy and paste is great

Floyd

iTrader: (9)

Your temp readings are indicative but you'd need the ambient to be the same each time to be sure.

F

dynamix

iTrader: (3)

Any of the guys on bigpower will tell you how much they rib me for logging data - the temp readings are pretty consistent irrespective of the ambient air temperature. Obviously the ecu only logs intake temp in full degrees as does the outside temp gauge whereas my charge temp gauge average temp every 0.1 of a second to 1 decimal place so a 0.5 degree variance on those temps is possible.

But on average these are correct.

I still havent managed to ascertain or accurately log what 'real' impact the IC water spray has though.

dynamix

iTrader: (3)

Woohoo - they've arrived

4 x Yokohama A048 235/45/17 in Medium Hard compound - decided that the MH would give me more wear/value for money than mediums and chasing the last 10th of a second would be beyond me at this stage.

Anywayy, there are here - just need to decide which rims to put them on

dynamix

iTrader: (3)

Banjo Time

Today was the day to solve the oil throw issue with the solution recommended by John Felstead, Pavlo, Bob Rawle and others - with the help of Gary and Chris from AP Tuning in Norwich

Having spoken to Gary and got all the Aeroquip parts on order they duly arrived with him yesterday and I rolled up bright and early at 9am today to get the new Roger Clark Motorsport catch can fitted along with the aeroquip gubbings in order for any oil collected from the cam and crankshaft breathers to return to the sump.

Alll would have been perfect if it wasnt for a school boy error on my behalf giving the wrong size for the drain outlet of the catch can - I had asked for -10AN where in fact it was -8AN. ooop Heyho, we could do most of it and just add that fitting tomorrow.

As we we having to drain the sump, I thought I may aswell have a full service done at the same time, well almost a full service anyway as the gearbox oil had already recently been changed

So, Coolant was drained, Oil was drained and Brake fluid replaced and bled to remove the fluid that had been in there for a few track days and had probably seen better days.

Also on the list was to remove the backing plates from the front discs to help with brake cooling.

As Gary had experienced problems with smoking from his car yesterday on idle, he was busy carefully dismantling his engine whislt Chris worked in his normal very efficient and tidy manner to get the work done, whilst all the while giving me a commentary on what he was doing. I was also trying to assist where I could, with removing the intercooler (got this down to a fine art now) and refilling the oil and pumping the brake pedal fater the back plates were removed.



Once the breathers were cut to go from the two cam breathers and the single crank breather, it was ready for the catch can to be fitted. Chris was his usual deligent self and wouldnt settle for anything less than perfect siting and fitment - result was a good un nicely tucked away on the chassis leg and rock solid. So much easier to drill with a 90 degree angle air drill





I had also been asked by Gary for the length of the Aeroquip hose that I needed to fit to go from the catch can to the banjo on the sump - I said 50cm should do it to which he replied: "that will never be enough I would have though about 1.5m, but I will get 2 metres". ...... once cut it was 50 cm - I was chuffed

So now it was time to fit somthing really 'motorsport' to the car

It looks fabulous !! - the only shame is that no-one will ever see it. So I took some pics





The breather pipe from the can was then fed further down underneath the car to remove any possibility of any oil vapour from getting onto front brakes and strapped up out of the way.



We did have an appearance of my mystery knock which baffled me for a while. Sounds like Big End bearings are going but only happens at idle and goes away when above 2000 rpm and under load. To add to the mystery it is intermittent. Sometimes it will appear and you can switch the engine off and on again and it will be gone, other times it will not be there at all. Mostly it is only when cold starting.

A stethascope (i know it is spelt wrong but dont give a .... ) was deployed to try and locate the offending article. It was somewhere in the region of the cam belt idler / tensioner but no noticeable play was present there, could also be the water pump or oil pump but neither has given me anything to doubt that they are running 100%.

We did think about changing the tensioner/idler until ringing Subaru for a price which was over £500 for the parts .... more investigation needed before we can pin it on that for definite. Either way, it has made this noise since last July so if it was 'that' serious, I had given it plenty of reason to go before now !! .... and look at my face ... am I bovvered, do i look bovvered?

Well actually I probably am but probably just overly paranoid at the moment as I dont want anything to spoil the fun up in Scotland

p1doc

i could give you a lend of a stethoscope
do i know you from somewhere
martin

dynamix

iTrader: (3)

possibly

so that's how you spell it ?

pete26

Brilliant thread, good luck with the time attacking!

911

?
Tempted Pete?

P20SPD

iTrader: (1)

Duncan, it will be your cambelt tensioner. Mine started doing it late on last year, and lasted a couple of months. It was very random as to when the noise would arise, but stethoscopes confirmed my thoughts.

Quick change of the tensioner confirmed this.

Steven

dynamix

iTrader: (3)

Thanks - thats where the noise was coming from, but couldnt figure why it would be intermittent.

Will strip that bit down tomorrow.

Were the parts expensive?

dynamix

iTrader: (3)

update to say that new tensioner and kevlar cambelt ordered and will fit tomorrow.

Thanks for your help Steven

Weird that it was intermittent - once removed what was the offending part - is it the bearing in the shaft?

pete26

might be

dynamix

iTrader: (3)

It is quite exciting just having a cameo role in it like I am, so must be great to be part of the whole series. Next year for 100% def.

Pete, what are you driving?

911

TA does take the car to another level as well as the driving/time in the seat element compared to hillclimbing.

dynamix

iTrader: (3)

Hillclimbing is on my list of things I have to do next year

yellowvanman

Duncan, are you at Zak's tomorrow?

Dill_typeR

Good write-up, some nice mods.

Never had a problem with oil in the breather can myself, usually just a lot of murky liquid.

Another scoob on the grid