Under Drive Pulleys

Noobz347 said:

If you get the BBK pulleys in a pair, I would think that they would be just as good. You could probably sell your one good pulley to someone with the opposite problem.



Yes. The water-pump would be moving the coolant in the volume specified by the engineer that designed it. Under-drive pulleys (particularly partial sets that under-drive a single component what... 20%) freed up 2, maybe 3 Hp at the rear wheels? (I've seen 6 at the wheels with just an alternator belt and no other accessories driven) All for $270.

That's why I say the stock pulleys would be an upgrade.

Edit: I failed to mention the additional timing that gets pulled on warm days when the cooling system is taxed. Temp increase = Total timing pulled

Click to expand...

Noobz347 said:

Not usually, no. Hard starting is USUALLY caused by heat soaking the starter. It's why you see so many high torque mini-starters being used with aftermarket headers. There's a couple of things that you can do/try:

A mini-starter (of course) as it has a smaller physical foot-print and is farther away from the heat source (headers and exhaust).
A starter blanket
Header wrap

It might also be a good idea to check the health of your starter cables and connections. The hotter the wiring and connectors become (the starter too for that matter) the more electrical resistance there in within the circuit.

The other USUAL cause would be excessive crank case pressure or high compression (not very usual on these cars).

I've cooked OEM starters and aftermarket mini-starters. They act fine for a while then.... I'm sure you've experienced the same outcome. hehe

Click to expand...

Noobz347 said:

Not usually, no. Hard starting is USUALLY caused by heat soaking the starter. It's why you see so many high torque mini-starters being used with aftermarket headers. There's a couple of things that you can do/try:

A mini-starter (of course) as it has a smaller physical foot-print and is farther away from the heat source (headers and exhaust).
A starter blanket
Header wrap

It might also be a good idea to check the health of your starter cables and connections. The hotter the wiring and connectors become (the starter too for that matter) the more electrical resistance there in within the circuit.

The other USUAL cause would be excessive crank case pressure or high compression (not very usual on these cars).

I've cooked OEM starters and aftermarket mini-starters. They act fine for a while then.... I'm sure you've experienced the same outcome. hehe

Click to expand...