Electric Radiator Fans

Oneball

CCCUK Member
Calipers-twin pin J56. If you’re not too far from Bexley I have TT 10x15 and 8.5 x15 to see if they suit.

Twin vs single pin calipers are a slight quandary because there’s a greater range of single pin pads.

Assuming they’re the standard backspace, yes those are the size I’m thinking of. I’m in Worcester.
 

kentvette

CCCUK Member
Can you lock the wheels?

Absolutely! I'm not a subscriber to the "bad brake" opinion. I fitted new S/S lined, O-Ring callipers all round on ours back in about 2006 and have had no complaints. The pedal is firm, with only about an inch or so travel and in fact only quite recently I locked up the wheels to avoid an oncoming lorry! I didn't really have actual braking issues before the O-Rings, but they did need bleeding every year, and I mean "needed"! The new ones do not. I think things may be different on a race car, but I'm also not a fan at all of silicone fluid on road cars and would never have it on the Corvette.

Can't beat TTs on an "old school Corvette racer! (I'd love them on our '78, but I'd go for TTIIs....)
 

Daytona Vette

Well-known user
On a C3 you need to go bigger Discs for real improvement in stopping power and that means taller wheels etc, but that aside the biggest issue with C3 Brakes is Brake fade from repeated heavy use on fast road work - finding the right Pads.
 
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Oneball

CCCUK Member
On a C3 you need to go bigger Discs for real improvement in stopping power and that means taller wheels etc, but that aside the biggest issue with C3 Brakes is Brake fade from repeated heavy use on fast road work.

Modern brake compounds and fluids can deal with that to some extent. Not that EBC crap. Look at Hawk or Performance Friction.
 

Roscobbc

Moderator
I've been using Hawk HP+ (I think) for the last few years - and the're OK when warmed-up. I just have to remember after start-up and first 1/2 mile drive to leave in first/second and drive with left foot on brake to get some heat build-up. Yes, theoretically larger discs (13" and 14") are an option for improving efficiency (I do have 18" wheels). Whilst I support the theory of larger discs I still remain to be convinced about the £3K - £4K cost of something like Wilwood or Baer and any extra retardation etc. A number of owners over there on the USA CF have done this - none of them other than commenting "the brakes feel much better - the're great - or similar" offer any proof - I remain unconvinced. A properly measured comparison test with various brakes types perhaps would convince.
 

Corvette

Well-known user
Worcester is 150 mile west. I can take measurements with pics or courier the 10x15 and you send it back? It has a 295 50 15 tyre. I can’t think of any other wheel part from Daisy mags that would look right/period. Shopcwo on eBay are cheapest with global shipping. I too have Hawk twin pin pads following recommendation.
 

Oneball

CCCUK Member
Worcester is 150 mile west. I can take measurements with pics or courier the 10x15 and you send it back? It has a 295 50 15 tyre. I can’t think of any other wheel part from Daisy mags that would look right/period. Shopcwo on eBay are cheapest with global shipping. I too have Hawk twin pin pads following recommendation.

If you can send a pick that’d be great, have they been on a Vette, apparently certain variations of the TT dont fit over Vette calipers?

How much do you want for them?
 

Forrest Gump

CCCUK regional rep
(Back onto electric fans) I don't know if it makes any difference in practice, but I've the temperature sender in the top of the radiator as opposed to in the cylinder head. It's a Kenlowe fan with a Kenlowe controller with a thin probe that locates in the radiator vanes, see photo. Perhaps the logic of having it there is that the fan is only switched on when water temp in radiator reaches the set-point, as opposed to the water temp in the heads??

The impellers on this Kenlowe fan are wide. It can shift some air. No shroud.
20201127_133314.jpg

Kenlowe controller and relay module. Fan "on" temperature can be set.
20201127_133845.jpg
 

Corvette

Well-known user
I used to use a Kenlowe with the probe up in the water hose. Sealed Ali panels directing as much air as poss to the rad is what you need at race speeds.

wheels. My 8.5 x 10” did scuff the calliper. 1/8” spacer or a grinder sorts it. Below is my 10x15”. Et43 . 4” back space. Mine are not for sale but if you go that route I wlll triple check mounted back on a car. I had them on a 69 with no probs but will re check before your place order.
 

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Oneball

CCCUK Member
Thanks. As I understand it you’ve got the two sorts of the torque thrust there. The ones with the cut out in the back of the spokes and the one without.
 

Corvette

Well-known user
Yes the first pic is my older 15x8.5” for the front. Other pics are of the 15x10” I bought maybe 2013. You are correct about various TT touching the caliper which the 8.5 did but my white C2 is wearing new 6 and 7” with clearance.
 

Chris Sale

CCCUK Member
Back on the topic of how effective C2 / C3 brakes are,.....

Since replacing the front drum brakes on my '64 with standard C2 disc brakes back in the early 2000s I have never had a problem with brake fade. This includes many trips on Welsh mountain roads, on which my drums were 'exciting' to say the least. Twice now on these drives I have had cases where friends following me in serious modern sports cars (no, I won't say what models!) disappeared from the rear view mirror, and when we met up they said they had to slow down because their brakes couldn't take the punishment.

Chris Sale
'64 Coupe
 

Oneball

CCCUK Member
Last car I remember having break fade on was a 2003 Buick Le Sabre dropping down to Lee Vining after driving through Death Valley
 

CaptainK

CCCUK Member
Not just you Mike - me too - brakes earn the description 'brakes' (like they kinda slow the car down.......kinda) its just that they don't really make the grade compared with most current vehicles......
I was the same with my standard manual brakes (aka not power brakes), on my C3. It was dreadful and it was concerning to drive the car as it gave me no confidence in it. Had a retrofit power brake conversion fitted to my car and its like chalk and cheese. So much better now and the brakes are so effective. I should add that only a new power brake master cylinder and power brake booster made this difference - the calipers, discs and pads were not changed.
 

Roscobbc

Moderator
Driving down Portsmouth way a couple of weeks ago and I managed to source a far more effective brake 'booster'............
imgres
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