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Noticed the front end getting a bit light at high speed even with full bracing anyone have any good suggestions? Function over styling always suits me better 馃檶
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The OEM under bumper rubber lip offered as accessory and fitted standard later on would do a lot. Or anything like it. A rubber strip for peanuts off Ebay will do.
 

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The front end lifting is more a function of the chin spoiler than a traditional spoiler...at semi-legal road speeds anyway. I would make sure you have this piece before looking to add additional aero, unless you want the lip for aesthetics of course.
 

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There is a stretch of A road in my area where I can hit 80-90mph and at that speed the lift is noticeable. Hence the idea of bonnet vents ( I have removed the plastic cover under the bonnet and trimed the spare wheel well ) and chin spoiler or lip.
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The chin spoiler goes under the front bumper & far out of sight...it's an OEM piece. That is different than a traditional front lip/spoiler. That is what I would make sure you have in place first if going for function.
 

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There is a stretch of A road in my area where I can hit 80-90mph and at that speed the lift is noticeable. Hence the idea of bonnet vents ( I have removed the plastic cover under the bonnet and trimed the spare wheel well ) and chin spoiler or lip.
Nice; see you have Carolyn麓s brace!
Good thinking concerning the free flow too.

Not sure though if you still feel the need for bonnet vents with the chin lip fitted and perhaps after that the the 麓tear off麓 ridge on the rear.
The chin lip reduces the pressure under the front just that bit and the ridge reduces turbulence. The two may very well give a more stable feeling.
It is not that the standard car is 煤nstable (this to appease the purists). I only went the next stages as I took more weight off.
 

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Not too sure what you are refering to.
I have a genuine ducktail spoiler - this helps?
It for sure helps. It does the 麓same麓 as on the Audi TT. Between brackets because on the Audi it addresses a serious problem which the MR2 does not have. The fundamental thing though; turbulence behind the rounded bum, still benefits from a ridge where the airflow detaches.
Ducktail is basically the same as a rubber lip, just more than necessary for that so it looks better.

You can google on 麓Kamm tail麓 and follow the bum aero from there.
Spyder aero would further benefit from the rear insert being open, Thus not exhaust heat shield, no crash bar (the Malian one is a step forward). This would add some air flow into the relatively lower pressure zone behind the car and so reduce drag while improving flow though the engine bay.

As you know I went further, many here think 贸ver the top, but then that is a favourite pass time for me. with the silly big wing. Contrary to urban myth it do茅s work on a road car: It has nothing to do with the 麓road麓 bit, but with the we铆ght. On my dainty thing thus three times as much as on the average US 麓road car麓. Four or more times than on hybrids/EVs.

For the rest the best thing for aero is.... just fl贸g the thing, rip the tarmac along the dotted line!
 

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The chin spoiler goes under the front bumper & far out of sight...it's an OEM piece. That is different than a traditional front lip/spoiler. That is what I would make sure you have in place first if going for function.
Thanks. I have ordered the cheapo fleabay one and will be installing this weekend ( if it arrives on time ).
Hopefully I can test it out on a longish drive to pick up a pair of headlights.
 

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It for sure helps. It does the 麓same麓 as on the Audi TT. Between brackets because on the Audi it addresses a serious problem which the MR2 does not have. The fundamental thing though; turbulence behind the rounded bum, still benefits from a ridge where the airflow detaches.
Ducktail is basically the same as a rubber lip, just more than necessary for that so it looks better.

You can google on 麓Kamm tail麓 and follow the bum aero from there.
Spyder aero would further benefit from the rear insert being open, Thus not exhaust heat shield, no crash bar (the Malian one is a step forward). This would add some air flow into the relatively lower pressure zone behind the car and so reduce drag while improving flow though the engine bay.

As you know I went further, many here think 贸ver the top, but then that is a favourite pass time for me. with the silly big wing. Contrary to urban myth it do茅s work on a road car: It has nothing to do with the 麓road麓 bit, but with the we铆ght. On my dainty thing thus three times as much as on the average US 麓road car麓. Four or more times than on hybrids/EVs.

For the rest the best thing for aero is.... just fl贸g the thing, rip the tarmac along the dotted line!
Aha...I see what you mean - I reinstated the heatshield when installing the TTE backbox. I was debating whether to leave it out.
 

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Aha...I see what you mean - I reinstated the heatshield when installing the TTE backbox. I was debating whether to leave it out.
It is best left is place unless combined with a l贸t better flowing exhaust. The TTE flows a bit less than the OEM box and both are a L脫T of metal making for a ditto heat sink. The plastic bumper skirt really needs shielding from this.
It is also why many a user perceives the engine bay to be hhhh贸t whereas it really is not. It is just the waft of hot air rising up from the muffler hitting the face upon opening the rear lid.

It is easy to see that with a no-muffler and the shield removed, that the upper vent in the bumper skirt can flow a l贸t of air. That this changes the drag behind the bum.

In the total of mods. on m媒 car it was fitting to delete the two plastic under shields too. Minimal lift, minimal drag, max negative lift ( inverted airfoil effect), max flow through the engine bay.
Beyond adding a rubber chin lip and/or tear off ridge at the rear the flow mods need some more integral attention. It is all connected: Per example hefty muffler, no go ;)
 

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My DIY spoiler. Found the idea on the internet somewhere where they suggested using plastic yard edging from Lowes. It is a very heavy composite but flexible plastic, maybe 1/8th thick. I pop riviited it to the existing small spoilers. I also cut off about an inch on the width. It still drags sometimes. I wonder if it flutters any at high speed, but after two years, it is not enough to loosen it up.I rarely drive above 70 mph, never feel the front end lifting. But this is very subjective.
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