My New Scooby... I'm Back...

[paulmoonraker]

Miner49er said:

What have you been advised with regard to initial mapping, running-in and final mapping?

What matters is the compression ratio. This has not changed as we used pistons that had a CR of 8.2:1 coupled with slightly thicker head gaskets to compensate for the skimming. The upshot is that it does not need a running in map, instead just drive it off boost. However, I will probably get it in the rollers after 1000 miles and just make sure there's no det.

Miner49er said:

What BHP and lb/ft figures are you expecting?

The work won't change the power output. However, I have a bigger turbo planned

[Miner49er]

paulmoonraker said:

The work won't change the power output. However, I have a bigger turbo planned

Sorry, I forgot you were producing pretty high BHP anyway. Mine was running with a moderate map (315/330) in an attempt to minimise the issues we're now facing, so I'll be hoping for around 350/330 once it's all set up properly after the build.

Regarding running in, engine builders seem to have differing views on the subject. I guess just stick to whatever the respective builder advises.

[paulmoonraker]

The beast is back! 150 miles in and running great. Once nice and warm there is no noticeable piston rattle at all!

1000 miles and then I will get Simon to give it the once over. Then come summer it will be a new turbo for 400bhp...

Edited by paulmoonraker on Thursday 10th April 14:42

[Evil.soup]

Must be nice to have it back outside the front door. I didnt realise you weren't going straight in with a new turbo but it makes sense to run it as it is until it feels like you need more punch, which is always inevitable once you have driven it for a while.

[paulmoonraker]

400 miles in... Christ, its hard driving like Miss Daisy...

[Ved]

If I was in your shoes I'd get on a motorway and do it in a day.

[paulmoonraker]

Ved said:

If I was in your shoes I'd get on a motorway and do it in a day.

Tempting as it is to lap the M25'ring, I better do it properly

[paulmoonraker]

700 miles now... Getting there, slowly (literally)...

[paulmoonraker]

Finally I got the map tweaked after the engine build, which seems like an age ago! Anyway, Duncan at Racedynamix managed a rather good 353bhp on the standard turbo. Dropped the boost to 1.3 bar which helped liberate a few extra horses as it now runs cooler.

[Vixpy1]

Ahhhh, it was you

[paulmoonraker]

Vixpy1 said:

Ahhhh, it was you

yes, me!

I really enjoyed the blast home. Good to see your new set up at SRR, Charlie!

[Evil.soup]

I was wondering how the car was going just earlier this week. Thats a big result from a standard turbo so you must be very pleased with it!!

[paulmoonraker]

Evil.soup said:

I was wondering how the car was going just earlier this week. Thats a big result from a standard turbo so you must be very pleased with it!!

Since the rebuild I have not driven it properly, so it's great to really use the full rev range and not worry. I still plan a turbo in the new year, but the shocks desperately need sorting as they are knocking like mad

[Evil.soup]

paulmoonraker said:

Evil.soup said:

I was wondering how the car was going just earlier this week. Thats a big result from a standard turbo so you must be very pleased with it!!

Since the rebuild I have not driven it properly, so it's great to really use the full rev range and not worry. I still plan a turbo in the new year, but the shocks desperately need sorting as they are knocking like mad

The shocks situation is a pain in the backside to be honest and poor show for Subaru considering their reputation for build quality.

I am sure you know your stuff well enough but if the idea of replacing them with coilovers crosses your mind I wouldnt recommend it. I replaced mine with coilovers and after 6 months of driving hell they were off and sold. Superb on the right stretch of road but 90% of the roads we use in the UK are a potholed lumpy bumpy mess and coilovers simply cant respond well enough to it. To be honest, i found then almost dangerous at times.

Sorry, had to get that off my chest before someone recommends replacing them with coilovers!

[paulmoonraker]

Evil.soup said:

paulmoonraker said:

Evil.soup said:

I was wondering how the car was going just earlier this week. Thats a big result from a standard turbo so you must be very pleased with it!!

Since the rebuild I have not driven it properly, so it's great to really use the full rev range and not worry. I still plan a turbo in the new year, but the shocks desperately need sorting as they are knocking like mad

The shocks situation is a pain in the backside to be honest and poor show for Subaru considering their reputation for build quality.

I am sure you know your stuff well enough but if the idea of replacing them with coilovers crosses your mind I wouldnt recommend it. I replaced mine with coilovers and after 6 months of driving hell they were off and sold. Superb on the right stretch of road but 90% of the roads we use in the UK are a potholed lumpy bumpy mess and coilovers simply cant respond well enough to it. To be honest, i found then almost dangerous at times.

Sorry, had to get that off my chest before someone recommends replacing them with coilovers!

I'm with you Ian. I had Tein coilovers on my last STi and whilst they were great on the track, on the roads they were hard work. I will do some research and perhaps see if I can find a middle ground.

[Evil.soup]

paulmoonraker said:

Evil.soup said:

paulmoonraker said:

Evil.soup said:

I was wondering how the car was going just earlier this week. Thats a big result from a standard turbo so you must be very pleased with it!!

Since the rebuild I have not driven it properly, so it's great to really use the full rev range and not worry. I still plan a turbo in the new year, but the shocks desperately need sorting as they are knocking like mad

The shocks situation is a pain in the backside to be honest and poor show for Subaru considering their reputation for build quality.

I am sure you know your stuff well enough but if the idea of replacing them with coilovers crosses your mind I wouldnt recommend it. I replaced mine with coilovers and after 6 months of driving hell they were off and sold. Superb on the right stretch of road but 90% of the roads we use in the UK are a potholed lumpy bumpy mess and coilovers simply cant respond well enough to it. To be honest, i found then almost dangerous at times.

Sorry, had to get that off my chest before someone recommends replacing them with coilovers!

I'm with you Ian. I had Tein coilovers on my last STi and whilst they were great on the track, on the roads they were hard work. I will do some research and perhaps see if I can find a middle ground.

KYB manufacture the original shocks and I found little else to replace them with other than coilovers and the original KYB shocks. The KYB's are not ideal since they have their issues but at least you get the standard Sti ride which is pretty good.

[Evil.soup]

paulmoonraker said:

Evil.soup said:

paulmoonraker said:

Evil.soup said:

I was wondering how the car was going just earlier this week. Thats a big result from a standard turbo so you must be very pleased with it!!

Since the rebuild I have not driven it properly, so it's great to really use the full rev range and not worry. I still plan a turbo in the new year, but the shocks desperately need sorting as they are knocking like mad

The shocks situation is a pain in the backside to be honest and poor show for Subaru considering their reputation for build quality.

I am sure you know your stuff well enough but if the idea of replacing them with coilovers crosses your mind I wouldnt recommend it. I replaced mine with coilovers and after 6 months of driving hell they were off and sold. Superb on the right stretch of road but 90% of the roads we use in the UK are a potholed lumpy bumpy mess and coilovers simply cant respond well enough to it. To be honest, i found then almost dangerous at times.

Sorry, had to get that off my chest before someone recommends replacing them with coilovers!

I'm with you Ian. I had Tein coilovers on my last STi and whilst they were great on the track, on the roads they were hard work. I will do some research and perhaps see if I can find a middle ground.

KYB manufacture the original shocks and I found little else to replace them with other than coilovers and the original KYB shocks. The KYB's are not ideal since they have their issues but at least you get the standard Sti ride which is pretty good.

[SonicHedgeHog]

Even now it's still a good looking motor. Wish we had more cars like this. If nothing else our roads would be a brighter place.

[paulmoonraker]

SonicHedgeHog said:

Even now it's still a good looking motor. Wish we had more cars like this. If nothing else our roads would be a brighter place.