163 replies to this topic

[warrenm]

Kevin, these manifolds are the ones I modified to fit the 12 port head, I haven't welded the balance tubes to this one yet, but I use the same type setup for the 9 port.

[warrenm]

Sounds like theyve got it in for you mate, July 29th was my first meeting in 2 yrs so i have a lot of catchin up to do,time seem to be the main problem.Its hard to get 37kg out without changing the cars character too much.Everything not needed is out (even swaybars) .May be I should lose the 37kg.
Yep definatley seen the light , I couldnt get any more out of the holley. I started with torana manifolds and cut them to get the bowl angle dead right ,otherwise they can sometimes run out of fuel,also joined them together with 1" tube. After a lot of time getting needles right it was ready to run again. There might be a bit more in it with springs and oils and smoothing the air coming into the carbs.

If your using HS8 carbs, you can also fit float bowls from a "Cooper S" to level the bowls out.

[orangeLJ]

I'm really only looking for a crank, I've already got these-



and these (8 of the things, so two spares)



and the big alloy 12 port.

we just want to throw a counterweighted crank in, but figure its worth doing some minor shaping of the leading edge on the counterweight for that poofteenth extra reduction in resistance.

all the knidedged cranks Ive seen have a heap of work (like someone mentoned about, lots of weight removed)

Would it be worth simply creating a "leading edge" on the crank, intstead of trying to reshape half the conterweight? Regardless of how much shaping, its still going to be balanced with the rest of the internals?

Or do we just stick with a stocko cw crank and not go to all the hassle?

[orangeLJ]

Ive got 4 black/blue cranks and a couple more still in blocks, so thats not the issue (but thanks for the offer)

Its more which way we go with the treatment of it/them?

[WhiteA9XS]

We previously used ford 250 with 200rod pistons ,but found another piston with circlips for floating pins and changed the rods to suit.We are turning to 6300 rpm through the traumatic because thats all the combo needs , have i missed any questions mate ,when are you ready to build?Mick

Hey Mick , i like the crank and longer rods idea but do you have an upgrade for a bit better than cast pistons ? i know its a compromise but 55 thou oversize is getting thin in the bore , do you offer pistons in smaller diameter ? or the other option i get custom pistons made similar to the J&E slugs in orangeLJ,s pic above and look at buying your crank and rods .. thanks would be good to know .

[warrenm]

Yep im using hs8 off 1961 jag.wish i'd known about the cooper bowls ,would have saved some work.
How long have you been using a blue head mate  P8150425.JPG   106.52K   2 downloads

There HD8 carbs Mick, the HS8 has a hose from the bottom of the bowl to the carb, yours have the bowl fixed to the carb. I'm not using the 12 port head in this car now, it's in the UC 4 door with EFI on it at the moment,I've got a 9 port in it now.
 P1020112 (600 x 450).jpg   76.23K   3 downloads
 P1020113 (600 x 450).jpg   75.76K   3 downloads
The left is the HS8, the right is HD8.

[warrenm]

I'm really only looking for a crank, I've already got these-



and these (8 of the things, so two spares)



and the big alloy 12 port.

we just want to throw a counterweighted crank in, but figure its worth doing some minor shaping of the leading edge on the counterweight for that poofteenth extra reduction in resistance.

all the knidedged cranks Ive seen have a heap of work (like someone mentoned about, lots of weight removed)

Would it be worth simply creating a "leading edge" on the crank, intstead of trying to reshape half the conterweight? Regardless of how much shaping, its still going to be balanced with the rest of the internals?

Or do we just stick with a stocko cw crank and not go to all the hassle?

It can't hurt, this is what I've done to the crank in my car at the moment, can't find the pics that I took. Think of the leading & trailing edges on a plane wing, it didn't take much to balance up either.