620 S Build

[S1Steve]

1 hour ago, CarYenta said:

My 10 mm wider tires are 15 mm wider 😂 Contacts cycle stay lightly. Otherwise fits great, easy to mount.

 

Should I:

 

1) shim the cycle stay towards center of car?

2) shim cycle stays up?

3) shim both directions?

4) bend the cycle stay?

 

I'm not sure what the cycle stay holes look like since these were installed already when I received the car.

 

 

 

Rears fit as anticipated, slightly more than a 1 finger gap between trailing arm and tire.

No the stands are not under the exhaust although it really appears as such!

Vs Old

 

 

First off, From one Seven Nut to another you’re doing an amazing job getting this together. Second , you need to make the stay longer, Shimming up the cycle fender will not fix your problem. Continue on Sir..🤣🤣🤣🍻🍻

[CarYenta]

2 hours ago, S1Steve said:

First off, From one Seven Nut to another you’re doing an amazing job getting this together. Second , you need to make the stay longer, Shimming up the cycle fender will not fix your problem. Continue on Sir..🤣🤣🤣🍻🍻

Lol thank you!

 

I see I am not very observant, shimming up is not really a thing.

 

Elongate via splicing in additional bar? 

 

Looks like 7 mm clearance on the horizontal side

 

[S1Steve]

25 minutes ago, CarYenta said:

Lol thank you!

 

I see I am not very observant, shimming up is not really a thing.

 

Elongate via splicing in additional bar? 

 

Looks like 7 mm clearance on the horizontal side

 

Much better pictures, seems like you may have gone overboard on how much tire can be stuffed under the cycle fender. Maybe your idea of bending the stay back inboard. But then the fender will be out of place…. 🤔🤔

[CarYenta]

33 minutes ago, S1Steve said:

Much better pictures, seems like you may have gone overboard on how much tire can be stuffed under the cycle fender. Maybe your idea of bending the stay back inboard. But then the fender will be out of place…. 🤔🤔

Maybe I finally get to buy a welder?? Or does someone sell wing stays for taller tires? I think it's the 50 profile that's killing me, 205/50 circumference is larger than 195/50 oops.

Edited December 5, 2025 by CarYenta

[S1Steve]

Maybe call your local Caterham dealer( Bruce). 🤣 See if he can answer your long stay question. I looked it up this afternoon ( I’m retired and have plenty of free time) . I see wing stays but no details on length. So I’m assuming their all the same depending on what chassis it’s being used for… It is nice having a nice little Tig welder at the house…🤣🤣

[KnifeySpoony]

Bend the stay then reposition the wing. I think it will work fine. 

[Croc]

4 hours ago, CarYenta said:

Maybe I finally get to buy a welder?? Or does someone sell wing stays for taller tires? I think it's the 50 profile that's killing me, 205/50 circumference is larger than 195/50 oops.

 

Which wing stays did you order for your car?  The 13 inch wheel ones or the 15 inch wheel ones?   There is something like an extra inch in the 15 inch wheel ones.  

[Croc]

10 hours ago, CarYenta said:

 

Rears fit as anticipated, slightly more than a 1 finger gap between trailing arm and tire.

 

 

 

 

 

I would monitor that gap on days when you are not driving to church.  Given you will be running these at low pressures there will be a fair load of tire rubber deformation in corners.  The clue that you have a problem is when you start to see missing paint...

[MV8]

Replace the front adapters with 25mm thick.

[CarYenta]

10 hours ago, KnifeySpoony said:

Bend the stay then reposition the wing. I think it will work fine. 

I think that is the way to go, adding a washer/spacer on the knuckle connections doesn't seem like the greatest idea. Elongating the upper mount hole might work but then isn't centered.

 

 

10 hours ago, Croc said:

 

Which wing stays did you order for your car?  The 13 inch wheel ones or the 15 inch wheel ones?   There is something like an extra inch in the 15 inch wheel ones.  

15"

 

10 hours ago, Croc said:

 

 

I would monitor that gap on days when you are not driving to church.  Given you will be running these at low pressures there will be a fair load of tire rubber deformation in corners.  The clue that you have a problem is when you start to see missing paint...

I'll keep an eye on that for sure.

 

2 hours ago, MV8 said:

Replace the front adapters with 25mm thick.

I thought about this and decided bending would be faster, cheaper, and closer to the OEM scrub radius. 

Edited December 5, 2025 by CarYenta

[CarYenta]

Had no fishing wire, razor wire, nor 007 watch-wire on hand. Tried a variety of tools, in the end this puddy knife made short work of the rubber adhesive from the factory. 5 minutes a side pushing / rocking side to side half a width of the puddy knife at a time to get under the adhesive. No knife required.

 

Lots of contact

Other side too

 

Time to bend, didn't need more leverage than a thick screwdriver.

 

Bend back down with a spacer, hit it with a hammer while pushing if needed for the rear stays since it's hard to lean on it.

 

Bingo

 

Do for the other 3

 

Added two bead layers extra Sikaflex 291 on top to make the stays a tad taller to clear the inside of the wing. Thought about cutting some holes to get it lower, but I think it's fine. Once those dried, I added another layer to adhere to the wings and slapped them on. Bing bango Bob's your cousin? I'll add a bunch more from the underside once this dries in place

 

I made the wings slightly more inboard to help reduce side of car debris /things going into my face since the sidewall will stick out just a tad when perfectly centered.

 

Still covers outer tread

 

 

 

 

Edited December 6, 2025 by CarYenta

[pickles]

2 hours ago, CarYenta said:

Had no fishing wire, razor wire, nor 007 watch-wire on hand. Tried a variety of tools, in the end this puddy knife made short work of the rubber adhesive from the factory. 5 minutes a side pushing / rocking side to side half a width of the puddy knife at a time to get under the adhesive. No knife required.

 

Lots of contact

Other side too

 

Time to bend, didn't need more leverage than a thick screwdriver.

 

Bend back down with a spacer, hit it with a hammer while pushing if needed for the rear stays since it's hard to lean on it.

 

Bingo

 

Do for the other 3

 

Added two bead layers extra Sikaflex 291 on top to make the stays a tad taller to clear the inside of the wing. Thought about cutting some holes to get it lower, but I think it's fine. Once those dried, I added another layer to adhere to the wings and slapped them on. Bing bango Bob's your cousin? I'll add a bunch more from the underside once this dries in place

 

I made the wings slightly more inboard to help reduce side of car debris /things going into my face since the sidewall will stick out just a tad when perfectly centered.

 

Still covers outer tread

 

 

 

 

Hey CarYenta

 

All i can say is you need to write this adventure up into a "How to Guide" ... absolutely confident you will get to the end (after you correct those headlight angles ) Because I may want to steal this, when it all works out! And also, isn't it "Bob's your uncle Fanny's your aunt!" 

 

Pickles

[CarYenta]

22 minutes ago, pickles said:

Hey CarYenta

 

All i can say is you need to write this adventure up into a "How to Guide" ... absolutely confident you will get to the end (after you correct those headlight angles ) Because I may want to steal this, when it all works out! And also, isn't it "Bob's your uncle Fanny's your aunt!" 

 

Pickles

Haha I probably should make a lessons learned guide once I have the car where I want it to be.

 

I aligned my headlights perfectly at night, and then they worked themselves loose on the drive home and became lazy eyes oops!

 

We don't talk about Fanny 😂 

[S1Steve]

Well Done, looks great..

[CarYenta]

Dash cam mount for my viofo a229 pro installed. Used a quad lock system on the bar so that it can remain there when running the aero screen. https://www.quadlockcase.com/collections/build-your-own?selected=eyJoZWFkIjoiUUxQLTM2MC1MSCIsImJhc2UiOiJRTFAtMzYwLUhDQiJ9 plus a standard quad lock flat face mount.

 

 

 

 

 

 

Also have the 1.5" roll cage mount mirror brackets put together with some DPR block nut conversion mounts. The L bracket can be 180 turned to have the mirrors stick out quite far if need be.

 

Next up is applying the ppf from Premier Paint Guard.

[Slonie]

Nice fix on the fender stay! Looks Pro1

[CarYenta]

Car is now PPF'd on the front cone and hood and sides (thanks Seattle Clear Bra!).

Since then, it has been raining, and raining, and more raining, but finally found a day to do a little low speed drive around Lake Washington and sit behind slow drivers. The amount of public support for this car is hilarious. I had more than 10 people come talk to me about it. A car with three little kids U-turned and they all came running out staring haha.

 

 

The mild dampness showed the supreme capability of these wider tires. Tons of traction.

 

 

I also tried out the roll bar Spa mirror mounts I Macgyvered together with the extra DPR fixings they graciously sent me when I ordered their door brackets. The distance they are away from the car on the normal doors with the DPR mounts I find it very hard to back up in a straight line into a parking spot, and hard to judge rear fender distance to things next to me. In normal cars, the mirrors stick out to the same width as the car or further, and so you get great perspective for backing up. Not so in the 7. So, for the roll bar mount contraptions I made up, I flipped around the L bracket to get more distance. Much easier now!

 

To minimize time spent converting between rain-mode full doors with DPR mounts and sunny day half-doors with cage mounts, I ordered a second set of Spa mirrors, the GT / Le Mans style this time which are a little taller by about 3/4 inch and wider by about 1-1/2 I believe.

 

I also have a set of coilovers being custom designed for the car by MCS. To-do is measure the motion ratios and then remove the bilsteins to find the un-sprung weights.

Edited Monday at 04:56 AM by CarYenta

[TN_Scooter]

Congrats! Sharp looking car!