Turbo’d intake temps and tips

[dan944]

Ahh I see. I've no experience with blankets but that one does seem alright. Pity about the fitting.

I had to take the sprigs under the wastegate connecting rod to stop It fouling.

The next drive I have will be to Cambridge so unless I do a test run before then I'll have to just roll with it.
I might do a test run though just to see how it is affecting it.

If it were using a MAF I wouldn't worry at all. But because he'll be putting together a VE table, it's very dependent on IAT. If he puts the VE table at a base temp of 40 degrees, it can run into some issues when ambient is a lot cooler.
Mind, there's a lot to done with the IAT compensation tables. So it's not the end of the world.

I wonder whether having the fan there is actually making it worse at speed.

Can you remove it and try again?

We tried to put the turbo blanket over the teeny tiny t2559 and couldn't get it on. Was hoping to present a bit data for this thread as we have a long drive this weekend.

Bugger I remember not being able to get mine on either.
Thought I was just being stupid.

The turbine is flippin tiny on that turbo isn't it? Such a shame haha. Cute little thing

Ahhh bugger it. I'll just see what Greg can do. He's the Guru after All.

How big is the 2559 compressor in comparison to my 2554 then? Is the number any Relation to size? 

[shnazzle]

Ahh I see. I've no experience with blankets but that one does seem alright. Pity about the fitting.

I had to take the sprigs under the wastegate connecting rod to stop It fouling.

The next drive I have will be to Cambridge so unless I do a test run before then I'll have to just roll with it.
I might do a test run though just to see how it is affecting it.

If it were using a MAF I wouldn't worry at all. But because he'll be putting together a VE table, it's very dependent on IAT. If he puts the VE table at a base temp of 40 degrees, it can run into some issues when ambient is a lot cooler.
Mind, there's a lot to done with the IAT compensation tables. So it's not the end of the world.

I wonder whether having the fan there is actually making it worse at speed.

Can you remove it and try again?

We tried to put the turbo blanket over the teeny tiny t2559 and couldn't get it on. Was hoping to present a bit data for this thread as we have a long drive this weekend.

Bugger I remember not being able to get mine on either.
Thought I was just being stupid.

The turbine is flippin tiny on that turbo isn't it? Such a shame haha. Cute little thing

Ahhh bugger it. I'll just see what Greg can do. He's the Guru after All.

How big is the 2559 compressor in comparison to my 2554 then? Is the number any Relation to size?

It's the size of the exducer on the compressor. So, it only tells about 20% of the story.

They're certainly not far from each other but the gt2554r is vastly superior in pretty much every way other than overall flow capability

[dan944]

Ahh I see. I've no experience with blankets but that one does seem alright. Pity about the fitting.

I had to take the sprigs under the wastegate connecting rod to stop It fouling.

The next drive I have will be to Cambridge so unless I do a test run before then I'll have to just roll with it.
I might do a test run though just to see how it is affecting it.

If it were using a MAF I wouldn't worry at all. But because he'll be putting together a VE table, it's very dependent on IAT. If he puts the VE table at a base temp of 40 degrees, it can run into some issues when ambient is a lot cooler.
Mind, there's a lot to done with the IAT compensation tables. So it's not the end of the world.

I wonder whether having the fan there is actually making it worse at speed.

Can you remove it and try again?

We tried to put the turbo blanket over the teeny tiny t2559 and couldn't get it on. Was hoping to present a bit data for this thread as we have a long drive this weekend.

Bugger I remember not being able to get mine on either.
Thought I was just being stupid.

The turbine is flippin tiny on that turbo isn't it? Such a shame haha. Cute little thing

Ahhh bugger it. I'll just see what Greg can do. He's the Guru after All.

How big is the 2559 compressor in comparison to my 2554 then? Is the number any Relation to size?

It's the size of the exducer on the compressor. So, it only tells about 20% of the story.

They're certainly not far from each other but the gt2554r is vastly superior in pretty much every way other than overall flow capability

I'll have a little research then. That's nice to know though. Seems to be spoiling better with the blanket on but that might be a placebo.

[shnazzle]

Doubt it. That's a well-known benefit of using a blanket apparently

Ahh I see. I've no experience with blankets but that one does seem alright. Pity about the fitting.

I had to take the sprigs under the wastegate connecting rod to stop It fouling.

The next drive I have will be to Cambridge so unless I do a test run before then I'll have to just roll with it.
I might do a test run though just to see how it is affecting it.

If it were using a MAF I wouldn't worry at all. But because he'll be putting together a VE table, it's very dependent on IAT. If he puts the VE table at a base temp of 40 degrees, it can run into some issues when ambient is a lot cooler.
Mind, there's a lot to done with the IAT compensation tables. So it's not the end of the world.

I wonder whether having the fan there is actually making it worse at speed.

Can you remove it and try again?

We tried to put the turbo blanket over the teeny tiny t2559 and couldn't get it on. Was hoping to present a bit data for this thread as we have a long drive this weekend.

Bugger I remember not being able to get mine on either.
Thought I was just being stupid.

The turbine is flippin tiny on that turbo isn't it? Such a shame haha. Cute little thing

Ahhh bugger it. I'll just see what Greg can do. He's the Guru after All.

How big is the 2559 compressor in comparison to my 2554 then? Is the number any Relation to size?

It's the size of the exducer on the compressor. So, it only tells about 20% of the story.

They're certainly not far from each other but the gt2554r is vastly superior in pretty much every way other than overall flow capability

I'll have a little research then. That's nice to know though. Seems to be spoiling better with the blanket on but that might be a placebo.

[dan944]

Hmmm. I feel because I read that I may be looking for it though. Although i was getting chatter driving out of my garden lol.

[Smcknighty]

Interested to find out more about the blanket when you get it to fit


Sent from my iPhone using Tapatalk

[dan944]

Interested to find out more about the blanket when you get it to fit


Sent from my iPhone using Tapatalk

I can (just about) touch the turbo blanket after a long drive. I think it increases spool rate and bay temps are definitely lower.

[dan944]

So some data from the emu.

Whilst on the rolling road, in 30degree ambient temps. Max iats of 50.

Driving back from rrr at 2000hrs the same evening. Cruising at 3krpm 34 degrees. Sometimes as low as 32.

That's not bad I reckon. I have one last thing to do which will be done tomorrow and I'll see how she runs then. 

Side note. Max coolant temps were 91. Fan was barely on and Greg commented how good the coolant temps were. Think the extra oil capacity really helps.

[spit]

Sorry, I don't have data for the C2 MR-S.

I think I should get some decent flow through it with the scoop. We'll see.

I'd recommend staying scoopless every day of the week and twice on Sundays. I've had waaay better performance and handling since a flooded road inadvertently ripped my scoop off. It did save me from serious injury by buckling and acting as a rudder but that's another story!

In the days when the scoop was there, I was driving around with an unwanted and unpredictable airbrake and a squirrely back end. Not nice under boost. Without it, the '2 had so much more go and better handling.

I concluded that an IC placed at the rear of a moving '2 was already getting plenty of squished under-car air whizzing up through it. The scoop just introduced a load of undesirable problems that negated it being there, and then some.

As for heatsoak when you're sitting in traffic and pootling ..... it'll be there to bug you whether you do or you don't.

All IMHO but worth thinking about......IMHO 

Of course, if you've already scooped and I've missed it and you're happy with it ...... well dinky do!

Sorry for the topic drift.

[dan944]

Sorry, I don't have data for the C2 MR-S.

I think I should get some decent flow through it with the scoop. We'll see.

I'd recommend staying scoopless every day of the week and twice on Sundays. I've had waaay better performance and handling since a flooded road inadvertently ripped my scoop off. It did save me from serious injury by buckling and acting as a rudder but that's another story!

In the days when the scoop was there, I was driving around with an unwanted and unpredictable airbrake and a squirrely back end. Not nice under boost. Without it, the '2 had so much more go and better handling.

I concluded that an IC placed at the rear of a moving '2 was already getting plenty of squished under-car air whizzing up through it. The scoop just introduced a load of undesirable problems that negated it being there, and then some.

As for heatsoak when you're sitting in traffic and pootling ..... it'll be there to bug you whether you do or you don't.

All IMHO but worth thinking about......IMHO 

Of course, if you've already scooped and I've missed it and you're happy with it ...... well dinky do!

Sorry for the topic drift.

Not at all. I love input. I think I kinda get what ya mean about the twitchy butt. I'm due an alignment so put it down to that tbh.

Will see how it goes then I'll remove to see if it actually makes a difference.

[dan944]

Made some tweaks to the scoop again and added a rubber seal to fill the gap between the scoop and the IC. Made a bit of a difference. Under a fair bit of boost at the 30 ish degrees ambient yesterday Max of 49.

Cruising at 70, 39 degrees.

I can live with these kinds of figures but will see what big Greg says.

[Nvy]

Can you post some pics of the setup?