Base car to Cup car, the evolution of my Exige. - Page 7 - LotusTalk - The Lotus Cars Community
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post #121 of 181 (permalink) Old 05-10-2018, 06:51 PM
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Originally Posted by VisualEchos View Post
Some S260 road car bits that I had in mind.

- S260 Carbon fiber hatch
- S260 Carbon fiber rear spoiler
- S260 Carbon fiber roof
Where did you source these parts? Lotus OEM?

Excellent thread and pictures! Keep it up!
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post #122 of 181 (permalink) Old 05-11-2018, 03:55 AM Thread Starter
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Where did you source these parts? Lotus OEM?

Excellent thread and pictures! Keep it up!
I got the spoiler off of a real S260.

I got the roof direct from Lotus. It was the very last carbon fiber roof that Lotus ever ordered. It actually wasn't even in inventory, as it was in pieces, and literally found by accident, and sold to me as pieces. I should have the glue to assemble it this week.

The hatch I haven't gotten yet. Might be a bit on that one, but I'll get it.

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post #123 of 181 (permalink) Old 05-11-2018, 05:24 AM
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Andy, do you have any way that you could do a comparison of the OEM CF parts to any aftermarket CF versions?

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post #124 of 181 (permalink) Old 05-11-2018, 06:06 AM Thread Starter
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Andy, do you have any way that you could do a comparison of the OEM CF parts to any aftermarket CF versions?
Depends on the part.

I have an after-market CF spoiler, the one that's made exactly like stock, and there is no comparing. It's heavier, and made like trash. I wouldn't have ever even looked for an OEM spoiler if ANY of the after-market replacements were half way decent.

As far as the hatch, I don't have it yet.

And the OEM CF roof, well, wow, the OEM is impossibly light. I think assembled it's going to be less than 5 lbs, and my non-mohawk roof is 23 lbs.

Quality of the OEM carbon roof is off the charts too, it fits so well that I could superglue it and it'd be fine.

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post #125 of 181 (permalink) Old 05-11-2018, 06:21 AM
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Thanks for the info, I know we've spoken about the spoiler comparison before via text but figured it would be great info for this thread for others.

All OEM CF roofs were full mohawks? Hopefully this weekend I can get some time to see if any of the aftermarket CF roof manufactures list the weights of their products.

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post #126 of 181 (permalink) Old 05-11-2018, 06:26 AM Thread Starter
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Thanks for the info, I know we've spoken about the spoiler comparison before via text but figured it would be great info for this thread for others.

All OEM CF roofs were full mohawks? Hopefully this weekend I can get some time to see if any of the aftermarket CF roof manufactures list the weights of their products.
Correct, Lotus never made the standard & half-mohawk in carbon, just the full mohawk. It was designed specifically for the 2009 S260, which took lightness to a new level with all of the extra carbon bits, including full carbon interior.

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post #127 of 181 (permalink) Old 05-11-2018, 07:35 AM
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I got the spoiler off of a real S260.

I got the roof direct from Lotus. It was the very last carbon fiber roof that Lotus ever ordered. It actually wasn't even in inventory, as it was in pieces, and literally found by accident, and sold to me as pieces. I should have the glue to assemble it this week.

The hatch I haven't gotten yet. Might be a bit on that one, but I'll get it.
What do you mean by “the roof was in pieces”. Do you have pics of these pieces?
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post #128 of 181 (permalink) Old 05-11-2018, 07:52 AM Thread Starter
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What do you mean by “the roof was in pieces”. Do you have pics of these pieces?
I do.

It's essentially 5 pieces.

1. top
2. bottom
3. channel cover (so the air goes straight back to the supercharger instead of all through the roof)
4. right side channel
5. left side channel

The side channels are just pieces that bond to the bottom sides of the roof to give the top something to bond to.



Then on the inside there are metal fixings for the roof bolts to attach to.

This is the rear inside fixing:



This pic shows the front side fixing, as well as one of the 3 front header panel fixings:

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post #129 of 181 (permalink) Old 05-11-2018, 07:56 AM Thread Starter
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This is a neat pic, showing the inside skin of the roof, and all the inside fixings. Look at the very bottom edge along the side of the roof, that has the bond channel laid in place. Without that, there is not much for the roof to bond to on the sides. The small bolts in the middle are the security bolts that go into the rear fixings, and I'm sure you recognize the clunk bolts.

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post #130 of 181 (permalink) Old 05-11-2018, 09:16 AM Thread Starter
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For anyone interested in the titanium 2-piece lugs, here's the direct link:

Universal Titanium Wheel Bolts M12 x 1.5 - Highline Tuning

PLEASE put ANDREW in the notes so he knows you got the info from me

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post #131 of 181 (permalink) Old 05-12-2018, 05:32 AM Thread Starter
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Took a drive last night, after lowering the front properly. Wow, such perfection. 72°, light wind, new AD08 tires, just fantastic. Really loving this 17/17 Monolite combination, looks exactly how I imagined it would.

Parts for my front big brakes should be here Wednesday, so I'm stoked about that. Still trying to source the rear Motorsport calipers, but that's just a matter of time.


Walk The Night.
by Andrew Thompson, on Flickr

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post #132 of 181 (permalink) Old 05-12-2018, 02:14 PM Thread Starter
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Another shot from last night.


The Emperors New Shoes.
by Andrew Thompson, on Flickr

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post #133 of 181 (permalink) Old 05-18-2018, 11:50 AM
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Originally Posted by VisualEchos View Post
Depends on the part.

I have an after-market CF spoiler, the one that's made exactly like stock, and there is no comparing. It's heavier, and made like trash. I wouldn't have ever even looked for an OEM spoiler if ANY of the after-market replacements were half way decent.

As far as the hatch, I don't have it yet.

And the OEM CF roof, well, wow, the OEM is impossibly light. I think assembled it's going to be less than 5 lbs, and my non-mohawk roof is 23 lbs.

Quality of the OEM carbon roof is off the charts too, it fits so well that I could superglue it and it'd be fine.
I would be shocked if it's 5lbs. Prototype Composite roof is 11-12 lbs.

Quote:
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Took a drive last night, after lowering the front properly. Wow, such perfection. 72°, light wind, new AD08 tires, just fantastic. Really loving this 17/17 Monolite combination, looks exactly how I imagined it would.
17 & 17? Square setup?

** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs)

'07 Lotus Exige S310


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post #134 of 181 (permalink) Old 05-18-2018, 12:14 PM Thread Starter
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I would be shocked if it's 5lbs. Prototype Composite roof is 11-12 lbs.
You are correct. It was just the skin. Total weight is 9.5 lbs without paint. 13 lbs is a LOT to take off the roof. Once it's painted I'll weigh it again. Pix for reference.

Stock roof



OEM carbon roof with all the fittings




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17 & 17? Square setup?
Yes, the only one in the world that I know of!
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post #135 of 181 (permalink) Old 05-19-2018, 12:16 PM Thread Starter
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REALLY loving my road combo of 17" Monolites at all 4 corners and Yokohama AD08R's. Super fantastic street set-up that allows me to change the character of the car completely in a matter of minutes.

The new brakes really shine with these wheels as well. Can't wait to get them installed on the rear.

Years ago I remember someone asking about having the Monolites in 17" all the way around, and there was a response that they wouldn't fit because of the offset. That was totally incorrect, they fit fine with the standard 2-pot caliper and 288 rotor as well as with the 4-pot and 308mm rotor.


Winning Combination.
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post #136 of 181 (permalink) Old 05-19-2018, 11:45 PM
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REALLY loving my road combo of 17" Monolites at all 4 corners and Yokohama AD08R's. Super fantastic street set-up that allows me to change the character of the car completely in a matter of minutes.

The new brakes really shine with these wheels as well. Can't wait to get them installed on the rear.

Years ago I remember someone asking about having the Monolites in 17" all the way around, and there was a response that they wouldn't fit because of the offset. That was totally incorrect, they fit fine with the standard 2-pot caliper and 288 rotor as well as with the 4-pot and 308mm rotor.
The offset is F +27/ R +32. IIRC The rear should fit fine on the front, it's just comes out 5mm more. I'm actually using 3mm spacers on the front and rear of my Monolites with 245 R888. You could use 3mm on the rear.

** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs)

'07 Lotus Exige S310


WTC 2
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post #137 of 181 (permalink) Old 05-20-2018, 05:51 AM Thread Starter
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The offset is F +27/ R +32. IIRC The rear should fit fine on the front, it's just comes out 5mm more. I'm actually using 3mm spacers on the front and rear of my Monolites with 245 R888. You could use 3mm on the rear.
F = 25
R = 32

25 to 28 seems to be the sweet spot for these cars in the front, but only because of wheel design. The flat-faced 17" Cup wheel works just fine at +38. Of course, it is an inch wider as well.

It's actually always been a sore spot with me that the front wheels seem to have more dish/offset/concave than the rears. Which is just the opposite of how people want it, and how the human eye wants to see it. Having them both 17x8 +32 looks MUCH better in my opinion.

The rear REALLY needs to be 17x9 +32 though, if I'm honest. It would fit a standard 245/40 with a perfect crown to match the front. However, Champion will not make the wheel in that size, unfortunately.

I'll be glad when these olden days are GONE and people can get whatever wheel they want in whatever size/offset they desire for a decent amount of money.

Those days are coming.

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post #138 of 181 (permalink) Old 05-21-2018, 04:33 AM Thread Starter
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Finally got the BBK installed on the front last night. Just have to bleed them today.

Still very hopeful that Lotus can source me some 7624 calipers for the rear.


Beauty.
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post #139 of 181 (permalink) Old 05-21-2018, 10:24 PM
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F = 25
R = 32

25 to 28 seems to be the sweet spot for these cars in the front, but only because of wheel design. The flat-faced 17" Cup wheel works just fine at +38. Of course, it is an inch wider as well.

It's actually always been a sore spot with me that the front wheels seem to have more dish/offset/concave than the rears. Which is just the opposite of how people want it, and how the human eye wants to see it. Having them both 17x8 +32 looks MUCH better in my opinion.

The rear REALLY needs to be 17x9 +32 though, if I'm honest. It would fit a standard 245/40 with a perfect crown to match the front. However, Champion will not make the wheel in that size, unfortunately.

I'll be glad when these olden days are GONE and people can get whatever wheel they want in whatever size/offset they desire for a decent amount of money.

Those days are coming.
The 17" wheels definitely looks better than the 16". My next set will likely be the Toybox because they come in wider sizes and I love the look of the black ones.

** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs)

'07 Lotus Exige S310


WTC 2
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post #140 of 181 (permalink) Old 05-22-2018, 04:17 AM Thread Starter
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The 17" wheels definitely looks better than the 16". My next set will likely be the Toybox because they come in wider sizes and I love the look of the black ones.
I've always had a love/hate thing with the Toybox wheels. On the one hand the rear lip and offset make them look fantastic. But the style of wheel leaves something to be desired IMO, looks very 80's on a 90's car, and the 16" front wheel kills them for me.

They look damn good from the rear with a 255 on them though. It's just too bad that we can't get a 255/35, as the 255/40 sidewall is way too tall IMO. Even the 245/40 sidewall is too tall to my eye. To get the proper sidewall you have to drop down to a 235, or get an 18" wheel. Which, IMO, is just too much for the Elise/Exige visually. I've seen some guys get away with them because they are black, but when I had them on my car for a bit I was like, hell no, they look crazy out of place.

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