RRR, turbo and ecumaster

[dan944]

And yes by the way. Penciled in for June 23rd. Confirming it tomorrow.

[dan944]

Sorry about the artistic skills but,
A picture paints a thousand words.
Unless it's dans....then it paints two.

[Carolyn]

I've done a lot of work in my career with heat exchangers (in the alternate energy biz).   Air to air is very difficult to get close to ambient.  There are a few tricks I learned....

Interesting little problem.

[1979scotte]

Will you lot just fit bloomin chargecoolers and be done with it.

[shnazzle]

Will you lot just fit bloomin chargecoolers and be done with it.

I'd love to. I always knew it was better but never quite appreciated how much.

Next bonus

[1979scotte]

Will you lot just fit bloomin chargecoolers and be done with it.

I always knew it was better but never quite appreciated how much.

Do you blow on your finger when you burn them or run them under the tap?

That's what I ask people who think intercoolers are equal or better.
Intercooler cheaper and easier to package in a front engine car but chargecoolers are where it's at especially mid engine.

[Carolyn]

Even an air-to-liquid (charge cooler) has to dump heat to atmosphere at some point.

Heat exchange efficiency is a function of surface area, relative flow rate and temperature differential.

The trick is to maximise all those.... how you do it (which kit) is depends on what fits the best.

[s12vea]

Nice one @dan944 . Nothing like a bit fast action. Hopefully you can get booked in soon. Did he give any indication?

@Carolyn that'd be great. Your ingenuity is exactly what this needs.
The only concern I have is access as the IC pretty much sits at the same level as the TTE brace, so any "scoop" won't be viable. I'm not sure what the airflow under the car is like and if there's much to scoop up from there.
The only thing I canthink of is some thicker alu sheeting and do exactly as Dan suggests.At least it would force air up through the IC instead of from the top to the bottom diagonally.


If you go to google and type "site:spyderchat.com Turbo Toyota Motorsport (TTE) intercooler", it's the first three images.

I could be wrong byt from the looks of it, it looks like the fan used in the engine lid would fit nicely on the back of the intercooler.

The fan can still be purchased new, I've bought one on eBay recently.

Spal axial fan va07-a12/c-58a 12v

About £65

[shnazzle]

Just had a look and doesn't look like it would fit at the back. It's too close to the gearbox.

So seems like the sheet metal "scoop" is the best option so far.

How much was the engine lid fan from headcase again?
Or do I just buy the fan above and do some cutting? ? Does it come with the thermostat switch?

[Carolyn]

Just had a look and doesn't look like it would fit at the back. It's too close to the gearbox.

So seems like the sheet metal "scoop" is the best option so far.

How much was the engine lid fan from headcase again?
Or do I just buy the fan above and do some cutting? ? Does it come with the thermostat switch?

Slow down... Let's take a good look on Ding Day and then figure it out... I have a few sneaky ideas up my sleeve.

[shnazzle]

Just had a look and doesn't look like it would fit at the back. It's too close to the gearbox.

So seems like the sheet metal "scoop" is the best option so far.

How much was the engine lid fan from headcase again?
Or do I just buy the fan above and do some cutting? ? Does it come with the thermostat switch?

Slow down... Let's take a good look on Ding Day and then figure it out... I have a few sneaky ideas up my sleeve.

Ooohh.. Sneaky?

[s12vea]

Just had a look and doesn't look like it would fit at the back. It's too close to the gearbox.

So seems like the sheet metal "scoop" is the best option so far.

How much was the engine lid fan from headcase again?
Or do I just buy the fan above and do some cutting? ? Does it come with the thermostat switch?

Not sure on headcases price as mine was part of the TTE kit originally. The thermostat switch is separate and not supplied with the the fan.

[jvanzyl]

You could always go down the "toms air scoop" that the mk2 had... Hideous but probably dealt with the same issue..

Sent from my Moto G (5) using Tapatalk

[shnazzle]

Just remembered something.
IAT is now being measured at the throttle body.
Before this weekend it was measured at the MAF, which is about 9 inches from the air filter.

When we came back from Newby Hall I commented that the intake temps were very high. So...
Intake temps were about 45-50 before turbo, and now they're 45-56 after turbo... So really the intercooler seems to be doing a decent job right?

Next steps are to wrap the intake pipes in heat reflective tape. It made a few degrees difference to my car and that's just wrapping about 10inches on pipe/maf housing.
Helen's pipework spans from behind the rear light, over the exhaust and cat and near the manifold, to the red hot turbo. And the turbo end of the charge pipe is awfully close to the cat as well.

Start at the basics...

[dan944]

Just remembered something.
IAT is now being measured at the throttle body.
Before this weekend it was measured at the MAF, which is about 9 inches from the air filter.

When we came back from Newby Hall I commented that the intake temps were very high. So...
Intake temps were about 45-50 before turbo, and now they're 45-56 after turbo... So really the intercooler seems to be doing a decent job right?

Next steps are to wrap the intake pipes in heat reflective tape. It made a few degrees difference to my car and that's just wrapping about 10inches on pipe/maf housing.
Helen's pipework spans from behind the rear light, over the exhaust and cat and near the manifold, to the red hot turbo. And the turbo end of the charge pipe is awfully close to the cat as well.

Start at the basics...

This is on my to do list as well. My intake from turbo to filter sits over the engine :/. What tape do you use out of curiosity?
I also need to knock up a heat shield for above the cat as that length of pipe right before the MAF is hottest to touch.

[shnazzle]

I have a roll of silver heat reflective tape. Gold is better of course but is about 20 quid a roll more expensive

[dan944]

I did notice that lol.
Not sure wether to wrap the exhaust or not.
Either way it won't be for a few weeks yet.

It's all about prep work for RRR now.

[shnazzle]

I did notice that lol.
Not sure wether to wrap the exhaust or not.
Either way it won't be for a few weeks yet.

It's all about prep work for RRR now.

Woohoo!
Exciting times for us all.

Mind, Gregg did a sterling job at the configuration so that if temps get over 50 he starts pulling back on power.
So, even if you do go over, he's built in compensation.
In fact, he's built in such strong compensation that there's no overboost protection.

What I was surprised about was the lack of closed loop boost control. He uses open loop and compensation tables instead. It obviously works because it goes straight to the right boost level and holds it flat. I noticed a post on the ecumaster Facebook last night where that is said to be the best way to do it. So Greg's well in the loop (no pun intended) .

The VVTi map is far more detailed than other maps I've seen people put in. It's not just a case of "a bit more overlap here and there".

I spent a long time yesterday plowing through the map he built and it's rather impressive the level of detail he's gone into. I have no idea how he did all of that in the time he had.

[dan944]

I did notice that lol.
Not sure wether to wrap the exhaust or not.
Either way it won't be for a few weeks yet.

It's all about prep work for RRR now.

Woohoo!
Exciting times for us all.

Mind, Gregg did a sterling job at the configuration so that if temps get over 50 he starts pulling back on power.
So, even if you do go over, he's built in compensation.
In fact, he's built in such strong compensation that there's no overboost protection.

What I was surprised about was the lack of closed loop boost control. He uses open loop and compensation tables instead. It obviously works because it goes straight to the right boost level and holds it flat. I noticed a post on the ecumaster Facebook last night where that is said to be the best way to do it. So Greg's well in the loop (no pun intended) .

The VVTi map is far more detailed than other maps I've seen people put in. It's not just a case of "a bit more overlap here and there".

I spent a long time yesterday plowing through the map he built and it's rather impressive the level of detail he's gone into. I have no idea how he did all of that in the time he had.

I imagine some of it came from the lotus so imhe may have had vvti maps etc already to hand.

He did mention he used to work for lotus whilst on the phone. Just bought some of the gold stuff. Might do it on the weekend. But at the same time I'd like to log temps after each mod to see the difference made so I can advise on if it's worth it or not.

[Essex2Visuvesi]

I did notice that lol.
Not sure wether to wrap the exhaust or not.
Either way it won't be for a few weeks yet.

It's all about prep work for RRR now.

Woohoo!
Exciting times for us all.

Mind, Gregg did a sterling job at the configuration so that if temps get over 50 he starts pulling back on power.
So, even if you do go over, he's built in compensation.
In fact, he's built in such strong compensation that there's no overboost protection.

What I was surprised about was the lack of closed loop boost control. He uses open loop and compensation tables instead. It obviously works because it goes straight to the right boost level and holds it flat. I noticed a post on the ecumaster Facebook last night where that is said to be the best way to do it. So Greg's well in the loop (no pun intended) .

The VVTi map is far more detailed than other maps I've seen people put in. It's not just a case of "a bit more overlap here and there".

I spent a long time yesterday plowing through the map he built and it's rather impressive the level of detail he's gone into. I have no idea how he did all of that in the time he had.

I imagine some of it came from the lotus so imhe may have had vvti maps etc already to hand.

He did mention he used to work for lotus whilst on the phone. Just bought some of the gold stuff. Might do it on the weekend. But at the same time I'd like to log temps after each mod to see the difference made so I can advise on if it's worth it or not.

Grab yourself one of these or something similar
https://hobbyking.com/en_us/turnigy-laser-guided-infrared-thermometer.html
Very handy

[dan944]

My scoop looks nothing like intended. It's now a scoop/ diffuser. Haha. Very marmite.

[shnazzle]

My scoop looks nothing like intended. It's now a scoop/ diffuser. Haha. Very marmite.

Does it work?

[dan944]

My scoop looks nothing like intended. It's now a scoop/ diffuser. Haha. Very marmite.

Does it work?

I don't know hahahaha.

Guess I'll find out tomorrow.