Emira JB4 Tuning Now Available for I4 & V6 Cars!

[TFS]

In really hot climates, there is going to be some big benefits to be gained with improved charge cooling and maybe water/meth injection I would expect. There’s no getting around it, all cars make less power in high temperatures and I think forced induction is even more affected than NA.

I have a track car (mid engine, NA 1.4l motorbike engine). It was previously pulling air from the engine bay. On a hot day inlet air temps were starting at 50degC and ending at 60 plus by the end of a session. I rigged up a basic cold air intake, fed by a roof scoop (not properly sealed or anything, no ram air) and now I’m barely over ambient on track, about 35degC yesterday. Engine feels significantly stronger sucking in this cooler air. I’m based in China, not UK, so maybe low 30s here ATM.

If it were me, I’d be focussed on those IAT and doing whatever I could to get them down.

I would totally agree with that. If there was a good design after market roofscoop id buy it in a heartbeat… also I am planning to replace the rear glass with Carbon or Plastic option.. unfortunately there is only 1 vendor atm making it and I dont like that design at all, plus on top of that im in dispute with them so would not buy anymore.

So the ideal situation would be that one of the Chinese vendors would design a roof scoop that continues with the rear engine bay as one.. im surprised that nobody in China has taken up this yet as the 4cyl turbos are more prone to heat in the engine bay.

Lets wait and see whats possible soon.

Btw the car is melting I believe

 

[NJemira85]

I would totally agree with that. If there was a good design after market roofscoop id buy it in a heartbeat… also I am planning to replace the rear glass with Carbon or Plastic option.. unfortunately there is only 1 vendor atm making it and I dont like that design at all, plus on top of that im in dispute with them so would not buy anymore.

So the ideal situation would be that one of the Chinese vendors would design a roof scoop that continues with the rear engine bay as one.. im surprised that nobody in China has taken up this yet as the 4cyl turbos are more prone to heat in the engine bay.

Lets wait and see whats possible soon.

Btw the car is melting I believe

What part is melting? I likely won’t have to worry about this but just curious. We’re in a heatwave here and it’s been 35 c

 

[GRP]

I would totally agree with that. If there was a good design after market roofscoop id buy it in a heartbeat… also I am planning to replace the rear glass with Carbon or Plastic option.. unfortunately there is only 1 vendor atm making it and I dont like that design at all, plus on top of that im in dispute with them so would not buy anymore.

So the ideal situation would be that one of the Chinese vendors would design a roof scoop that continues with the rear engine bay as one.. im surprised that nobody in China has taken up this yet as the 4cyl turbos are more prone to heat in the engine bay.

Lets wait and see whats possible soon.

Btw the car is melting I believe

We have a vendor setup to make direct fit vented polycarbonate rear windows for the Emira (and Evora). Sort of an 675LT inspired type look like the picture below.
It would be a remove the glass, and install with urethane installation. If there is enough interest I will make it happen.

 

[TFS]

We have a vendor setup to make direct fit vented polycarbonate rear windows for the Emira (and Evora). Sort of an 675LT inspired type look like the picture below.
It would be a remove the glass, and install with urethane installation. If there is enough interest I will make it happen.

View attachment 66514

Im in for this, but the design of the vents should be flowing nicely with the side vents.. not like the picture above

 

[VL3X]

Im in for this, but the design of the vents should be flowing nicely with the side vents.. not like the picture above

Cool idea, but yeah... I'd also want to see it more louvered so rain wouldn't fall right in.

 

[benjh1028]

Cool idea, but yeah... I'd also want to see it more louvered so rain wouldn't fall right in.

That’s the Stage 2 cooling system!

 

[VF Tuner]

We have a vendor setup to make direct fit vented polycarbonate rear windows for the Emira (and Evora). Sort of an 675LT inspired type look like the picture below.
It would be a remove the glass, and install with urethane installation. If there is enough interest I will make it happen.

View attachment 66514

Rain, dirt, debri, rocks, leaves, etc.

 

[TFS]

Rain, dirt, debri, rocks, leaves, etc.

As long as it ‘cools’ or dissipate the heat in the engine bay im down for it.

F40’s have it too and an emira is a fraction of that price.. if they can pull it off with a far more sophisticated engine then why not…

F40 louvred engine bay explained

 

[Kaz]

We have a vendor setup to make direct fit vented polycarbonate rear windows for the Emira (and Evora). Sort of an 675LT inspired type look like the picture below.
It would be a remove the glass, and install with urethane installation. If there is enough interest I will make it happen.

View attachment 66514

Yes please do this!

 

[RoryBellows]

We have a vendor setup to make direct fit vented polycarbonate rear windows for the Emira (and Evora). Sort of an 675LT inspired type look like the picture below.
It would be a remove the glass, and install with urethane installation. If there is enough interest I will make it happen.

View attachment 66514

How long would something like this last before it hazes over from the sun? would you direct glue the poly similar to the glass or would there be a frame that the poly sits in for a tooled install?

 

[mr.suntorytime]

We have a vendor setup to make direct fit vented polycarbonate rear windows for the Emira (and Evora). Sort of an 675LT inspired type look like the picture below.
It would be a remove the glass, and install with urethane installation. If there is enough interest I will make it happen.

View attachment 66514

make it more F40 and im buying

 

[GRP]

How long would something like this last before it hazes over from the sun? would you direct glue the poly similar to the glass or would there be a frame that the poly sits in for a tooled install?

It would have a "blackout" area like the oem glass does and would be adhered directly to the rear hatch like the glass.
The manufacturer uses a hard coating on the poly to keep it from scratching easily and protect from the elements. Adding extra protection like ceramic coating, car wax or maybe even a windshield skin would prolong its life even further though.
We have been selling hard coated poly windshields for Elise/Exige for years and never had a yellowing/hazing report but obviously things can vary widely depending on weather, being parked outside every day etc etc.

 

[GRP]

make it more F40 and im buying

I'll see what they can do.

 

[seriously]

This could be pretty cool and better than a CF hatch. If designed properly I don’t see it collecting any rain at speed. Only standing still which just means don’t park it in the rain.

 

[crestima]

We have a vendor setup to make direct fit vented polycarbonate rear windows for the Emira (and Evora). Sort of an 675LT inspired type look like the picture below.
It would be a remove the glass, and install with urethane installation. If there is enough interest I will make it happen.

View attachment 66514

Hi Greg,
A cooling engine under-tray, similar to what GRP already offers for the Evora, would perhaps be a more practical solution for extra venting, particularly since water and debris penetration into the engine bay would be a non-issue. Could that be developed for the Emira?

 

[GRP]

Hi Greg,
A cooling engine under-tray, similar to what GRP already offers for the Evora, would perhaps be a more practical solution for extra venting, particularly since water and debris penetration into the engine bay would be a non-issue. Could that be developed for the Emira?

We could make those for sure.
Something to look into when the shop car is on the lift next time.

 

[GRP]

I'll see what they can do.

Sounds like they dont have the machine capability to form a piece quite that large with ducts like the F40 has, they could only do slots/openings.
I'll ask around and see if we have another source available.

 

[mr.suntorytime]

Sounds like they dont have the machine capability to form a piece quite that large with ducts like the F40 has, they could only do slots/openings.
I'll ask around and see if we have another source available.

Im pulling for you Greg! also lmk if you need help finding manufacturing for this i might have someone in mind.

 

[TurboTambo]

I would totally agree with that. If there was a good design after market roofscoop id buy it in a heartbeat… also I am planning to replace the rear glass with Carbon or Plastic option.. unfortunately there is only 1 vendor atm making it and I dont like that design at all, plus on top of that im in dispute with them so would not buy anymore.

So the ideal situation would be that one of the Chinese vendors would design a roof scoop that continues with the rear engine bay as one.. im surprised that nobody in China has taken up this yet as the 4cyl turbos are more prone to heat in the engine bay.

Lets wait and see whats possible soon.

Btw the car is melting I believe

I'm also interested in replacing the rear window with a carbon or fibreglass vent. I'd like to continue the black pack look from the roof so that the vent looks like it was done from factory. Hopefully more of these options will be available shortly.

 

[TurboTambo]

We have a vendor setup to make direct fit vented polycarbonate rear windows for the Emira (and Evora). Sort of an 675LT inspired type look like the picture below.
It would be a remove the glass, and install with urethane installation. If there is enough interest I will make it happen.

View attachment 66514

Interested, if the design is right and its finished in the same colour as the black pack (saves having to get it finished locally).