15" Diamond race wheels, windscreen, top, lights for WCM S2K Ultralite

[Bruce K]

hello, everybody. i have the following used wcm s2k ultralite parts for sale:

 

set of four (4) black 15" diamond racing wheels with hoosiers for the wcm s2k. hoosiers are 23 x 9.5 x r15 and are additionally labelled r25b. both tires and wheels are in good condition.

 

subaru differential which i think is about 3.54 (i will look into this). the lower ratio is better suited to autocrossing, according to the former owner and others. when i bought the car, the former owner included a 4.111 diff in the sale, which may have been in the car originally. as i will use the car for street and track, i installed the 4.111. less than 9000 miles on the 3.54. was working perfectly when i removed it - clean looking, no leaks, no noise, no vibration.

 

original black plastic high and low beam front headlights (high and low beams in separate enclosures) and one original aluminum headlight bracket.

 

original flat lexan windscreen in aluminum frame. includes wiper motor and blade. wiper motor was not working when i removed it, though it could have been a bad connection. will need new lexan. can be mounted with or without the wiper. unless required by local laws, i would NOT install the wiper motor and blade - cleans only about 15% of the windshield.

 

original canvas or fabric top, side curtains and doors. look to be in really good condition. the former owner used them when trailering his car (he had an open trailer). i don't think he drove around with them on, as the items look about new.

 

left (driver) side autocross cone guard. bolts to underside of car. deflects cones away from the rear fender. a really smart way to protect the rear fenders if you like to autocross. i don't have the passenger side guard, but you could mock it up easily from the driver's side.

 

let me know if you have interest in any of these items. thanks!

[RGTorque]

sort of interested in the guard... how does it mount? pic installed? im looking for a read myself but i would love to find a 4.44 for the fun times...

[jimrankin]

I've never even seen the top/side curtains/doors for an S2K and only a couple of windshields, interested, do you have any photos?

[Bruce K]

i'll get pix, guys. romeo, i can take dimensions and with the pix, you could make these gaurds yourself - super simple, just bolt to bottom frame rails. seeing the videos of these mad autocrossers, i can see how those wimpy plastic cones could take out a rear fender. give me armco and a tire barrier, any day!

 

now that my 4.111 is installed, i think you would have a nearly useless first gear if you installed a 4.44. you might need 3 gears to 60 mph. i just got the alignment and haven't tracked my car yet, but i envision this to be a predominantly 3rd/4th gear track car. with a 4.44, you would IMO be a 4th/5th gear tracker. you already know how tricky it can be to find 5th gear quickly, or in a high-speed or tight curve. i don't think you would be happy with the 4.44 - but it IS loren's favorite diff, and he knows a lot more about these cars than i ever will.

 

i will have more to report in a few days, but i have about 100 miles on the car, and i will report right now that it is freakin' FAST! it feels faster than my 402SR roush-equipped backdraft racing roadster. it sure as hell will be faster around a racetrack. my initial impression, which could reverse with more experience, is that the wcm s2k is a caterham on steroids, with more of everything - revs, hp, gears, brakes, lateral support, leg room, rubber - even wheel studs! we'll issue a final opinion after more saddle time. but at this point, i say thanks, jeff duncan, for selling me this car!

[powderbrake]

i think you would have a nearly useless first gear if you installed a 4.44. you might need 3 gears to 60 mph. but it IS loren's favorite diff, and he knows a lot more about these cars than i ever will.

 

 

I have the 4:44 in mine, and you do shift rather quickly to second, but you blow thru 60mph in second gear faster than you can imagine. Just keep an eye on the shift indicator lights.

It does run about 4000 rpm at 70mph, but heck that's just a short way from the VTEC point. It pulls nicely at 30mph in 6th gear in day to day driving around town.

Sometimes on the highway , I wish for a 4:11, but my solution to that is stay off the highway, and stick to the twisty roads.

 

With the 4:44, taking your foot off the gas is like applying the brakes. It's definitely not a "coaster"

[Bruce K]

that down-low punch is probably the reason loren likes the 4.44, also. and it's good to hear that you can reach 60 in 2nd, even though you are at the top of the rev range. but from your reply, i am believing that you would run most tracks in 4th/5th, or even 5th/6th. 5 and 6 are the two toughest gears to find in that box. as i drive the car, i get better at locating them, but finding 5/6 will never be like finding 3/4. AND (BIG and), if you miss 6th and hit reverse, it's aloha tranny - and that's NOT mele kalikimaka!

so let's see if i have this sorted out: for screaming stoplight performance and low/medium speed cruising, 4.44 is the better diff. for track and highway, 4.111 appears to be a good choice.

[WestTexasS2K]

4:44 is great for auto x and track usage. You will rarely get to 6th 3-5 is mostly used. With 4:44 I usually start in second unless on a slope or loading on the trailer. If you think it's quick with 4:11 up is 10 percent faster with 4:44. If I were doing a 3k mile tour then I would run 3:90-4:11 ratio just for less revs on the road.

I would drive it with 4:11 you can always change that later.

[WestTexasS2K]

Roman sent you a text that I have a 4:44 on the shelf.

[Bruce K]

4:44 is great for auto x and track usage. You will rarely get to 6th 3-5 is mostly used. With 4:44 I usually start in second unless on a slope or loading on the trailer. If you think it's quick with 4:11 up is 10 percent faster with 4:44. If I were doing a 3k mile tour then I would run 3:90-4:11 ratio just for less revs on the road.

I would drive it with 4:11 you can always change that later.

yoda has spoken! still, from what was said, 4:44 will involve more 5/6 shifts on the track, and i want to avoid that. i'm thinking of the "toilet bowl" and the long sweeper at grattan - the g-forces will interfere with already difficult gear selections. however, i won't really know till i get there.

 

meanwhile, loren, the guys at autoeurope were very impressed with your product. the following statement (quoted earlier) was theirs: "the wcm s2k is a caterham on steroids, with more of everything - revs, hp, gears, brakes, lateral seat support, leg room, rubber - even wheel studs!" they will see it in action in october at a grattan event that they host.

 

and thanks for all your help getting this car back on the road, loren!

[WestTexasS2K]

Gearing certainly differs from track to track. A long course like VIR the 4:11 may be better. Just try and see what you feel is right for you. Don't be afraid to rev the Honda. 6-9k rpm is the sweet spot. Just be sure to keep the oil high on the dip stick. If you plan on frequent track use with slicks. You might want to consider a baffled oil pan from Endyn.

[Bruce K]

Gearing certainly differs from track to track. A long course like VIR the 4:11 may be better. Just try and see what you feel is right for you. Don't be afraid to rev the Honda. 6-9k rpm is the sweet spot. Just be sure to keep the oil high on the dip stick. If you plan on frequent track use with slicks. You might want to consider a baffled oil pan from Endyn.

 

again, thanks for the advice, loren. jeff duncan, the prior owner, installed a mugen baffled aluminum pan before i bought the car, so i should be good there. on high revs, someone told me that honda used to pull an occasional test engine off the line and run it for 250 hours at redline. if true, that's an amazing testament to the durability of the motor. i've driven many caterhams and owned two. only the two liter dohc bd3 cosworth motor comes close to this experience, and i feel a lot more comfortable revving the s2000 - if it breaks, i don't need shares in tesla to fix it (i once paid $6,500 for an aluminum 4 cylinder cosworth block!)

[WestTexasS2K]

I forgot that car had the Mugen pan. You should be good. We can throw a Rotrex on there and get another 100hp when you get bored with stock set up.

 

I talked to the Honda engineers that we did the One Lap of America with a few times. They told us the same thing. They really abuse them on the dyno. They run them for hours at redline. They told us they had one last over 700 hours before failure. I don't know if its true but that's what we were told.

[rss]

I have the 4:44 in mine, and you do shift rather quickly to second, but you blow thru 60mph in second gear faster than you can imagine. Just keep an eye on the shift indicator lights.

It does run about 4000 rpm at 70mph, but heck that's just a short way from the VTEC point. It pulls nicely at 30mph in 6th gear in day to day driving around town.

Sometimes on the highway , I wish for a 4:11, but my solution to that is stay off the highway, and stick to the twisty roads.

 

With the 4:44, taking your foot off the gas is like applying the brakes. It's definitely not a "coaster"

 

jerry,

are you running smaller than typical tires? i have the 4.44 and i'm pretty certain i'm under 4000 rpm at 80mph in 6th gear. around 3700 i think, and i have calibrated my speedometer by gps.

[US Texas 7]

Hello, I have just bought a S2K that has 2 small screens and flat screen. It has a top but no doors, curtains. I would like to buy yours Also interested in Wiper assenbly. I might convert it to wipe more area. I would like to have something to start with. I haven't picked up the car yet as it is snowed in up north. Fellow who sold to me doesn't have pictures of top and I have never seen one. Any pictures and information appreciated. Thanks. Robert

[Mondo]

here's one... might be Bruce's

[Bruce K]

here's one... might be Bruce's

 

Thanks for the pic, Mondo. That must be my car. I just replaced the motorcycle side view mirrors this winter. Wheels, exhaust, paint - all the same. Must be my car when VERY new.

[Bruce K]

Hello, I have just bought a S2K that has 2 small screens and flat screen. It has a top but no doors, curtains. I would like to buy yours Also interested in Wiper assenbly. I might convert it to wipe more area. I would like to have something to start with. I haven't picked up the car yet as it is snowed in up north. Fellow who sold to me doesn't have pictures of top and I have never seen one. Any pictures and information appreciated. Thanks. Robert

Thanks for the offer, US Texas, but I've sold everything except the wheels and race rubber. I have an enclosed trailer in my sites, and that means I will have future use for the slicks and rims, too. Therefore, all gone, but good luck in your search!

[Bruce K]

[/b]

Hello, I have just bought a S2K that has 2 small screens and flat screen. It has a top but no doors, curtains. I would like to buy yours Also interested in Wiper assenbly. I might convert it to wipe more area. I would like to have something to start with. I haven't picked up the car yet as it is snowed in up north. Fellow who sold to me doesn't have pictures of top and I have never seen one. Any pictures and information appreciated. Thanks. Robert

US Texas: Just though about something. We have a manual in production for the WCM S2K. It is about 60 pages in length and touches on many upgrade, repair and maintenance issues. If you want a copy of our work-in-progress, just send me your email. Make sure your email can handle a large file attachment.

[Bruce K]

Thanks for the offer, US Texas, but I've sold everything except the wheels and race rubber. I have an enclosed trailer in my sites, and that means I will have future use for the slicks and rims, too. Therefore, all gone, but good luck in your search!

 

Here's another thought: I converted my car from the flat windscreen to the two small screens that are apparently already fitted to your car. I would never go back. You lose all-weather capability with "Brooklands"-style individual screens, but these are NOT all-weather cars. As noted in earlier posts, I have now owned three different Super Sevens. I erected my top and installed the doors ONCE, up at a cottage during the middle of summer. On the ride home, I nearly fainted from heat stress, and the noise! It was like being trapped inside Charlie Watt's kick drum for an entire concert! I personally prefer the windscreens for the manner in which they present the car (aesthetics); for the improved visibility and therefore safety; for the endless sun and wind in the hair; for the marginal aerodynamic improvement and more. If it rains, I find a tree or an overpass and park beneath for a few minutes. If your screens are scratched or foggy, have a shop cut you new ones to shape from lexan (use the old ones as templates). Clean them with nothing stronger than a couple drops of dishwashing detergent and clean water.

[xcarguy]

. . . . You lose all-weather capability with "Brooklands"-style individual screens, but these are NOT all-weather cars. . . . . . . . I personally prefer the windscreens for the manner in which they present the car (aesthetics); for the improved visibility and therefore safety; for the endless sun and wind in the hair; for the marginal aerodynamic improvement and more. If it rains, I find a tree or an overpass and park beneath for a few minutes.

 

:iagree::iagree: !!!!! . . . . . but you had me at Brooklands:jester: . . . . :cheers: