Heat soak ?

[69coupe]

I notice with my new big block and Hooker comps I get some heat soak ? The starter is struggling to crank after running the car for a while. I was given a small blanket type heat wrap and have installed around the starter but doesnt seem to help much. Would a metal shield be better ? What material is best to deflect heat away from the extractors ??

[J.J.]

what if you heap wrapped the extractors?

[69coupe]

what if you heap wrapped the extractors?

I guess I could wrap that section of the pipes but hate that look. Does it work well ???

[J.J.]

it works very well. are your pipes HPC coated? that might help a little.

[TUFF68]

what type of starter motor do you have ?. i'm using one of these http://www.rocketindustries.com.au/descriptions.php?partno=CVR5323 on my SB '57 and BB Camaro and have no problems starting a hot engine. Coated headers will help as well, dont like the wrapped header look either.

[69coupe]

what type of starter motor do you have ?. i'm using one of these http://www.rocketindustries.com.au/descriptions.php?partno=CVR5323 on my SB '57 and BB Camaro and have no problems starting a hot engine. Coated headers will help as well, dont like the wrapped header look either.

Starter is the standard starter supplied with new ZZ502. Is supposed to be a factory reduction starter. The pipes are not coated just standard black paint from Hooker. I think I will try the wrap around the pipes near the starter and see what happens.

[anychevy]

what type of starter motor do you have ?. i'm using one of these http://www.rocketindustries.com.au/descriptions.php?partno=CVR5323 on my SB '57 and BB Camaro and have no problems starting a hot engine.

Those starters don't seem to suffer from heat soak, they're a permanent magnet type (no feild windings)
Or you could try one of these first
http://www.ecklers.com/product.asp?pf_id=26229&dept_id=1769
You may also want to try a relay close to the starter, old wiring and heat causes resistance and voltage drop.

[69coupe]

You may also want to try a relay close to the starter, old wiring and heat causes resistance and voltage drop.[/QUOTE]

Do you mean a relay on the soliniod wire ?? I have my main 12 volt source coming from the battery in the boot directly. The earth cable from the chassis rail ( battery cable size) is going to one of the starter mount bolts

[anychevy]

You may also want to try a relay close to the starter, old wiring and heat causes resistance and voltage drop.

Yes, a relay will help if you're not getting a good 12v supply to the solonoid.
Very common on 40 + year old cars especially with the battery in the boot.
You need a BIG battery, 700cca at least and the biggest battery cables you can get connectors for
and a 65 amp minimum alternator.
The ground (-) from the battery bolted directly to the frame (end of the chassis rails)
The positive cable running directly to the starter and a short battery ground cable bolted directly to the block from the chassis rail.
You also need a ground wire from the battery to the inside of the boot somwhere and from
the front rail to the firewall or front inner gaurd

[SirGeo]

what type of starter motor do you have ?. i'm using one of these http://www.rocketindustries.com.au/descriptions.php?partno=CVR5323 on my SB '57 and BB Camaro and have no problems starting a hot engine. Coated headers will help as well, dont like the wrapped header look either.


My brother put one of these on his 308 after having similar hot start problems.. made a huge difference.. it actually started the car :p

[anychevy]

Starter is the standard starter supplied with new ZZ502. Is supposed to be a factory reduction starter
They're supposed to have HD solonoids as well, so I suspect you may have a voltage drop problem.

[69coupe]

They're supposed to have HD solonoids as well, so I suspect you may have a voltage drop problem.

Ok will try a relay when get the car back from the exhaust tomm. Will let you know the result

[69coupe]

They're supposed to have HD solonoids as well, so I suspect you may have a voltage drop problem.

Anychevy
You where right a relay fixed the problem. I wrapped the starter and extractors near to it, but feel sure the problem was voltage drop.
Thanks a lot :D